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Contents Introduction .......................................................................................... 1 Safety Notes ........................................................................................ 1 Notes on Use ....................................................................................... 4
Chapter Summary ............................................................................... 6 Identification of Controls and Indicators ........................................... 8 Section 1 Overview ......................................................................... 1-1 1-1 Product Introduction ................................................................ 1-2 1-2 System Operation ................................................................ 1-3 Section 2 Specifications ................................................................ 2-1 2-1 Main Unit Specifications .......................................................... 2-2 2-2 Tables ....................................................................................... 2-7 Section 3 Setup and Preparation .................................................. 3-1 3-1 Points to be Attended to During Setup .................................... 3-2 3-2 Loading Recording Paper ......................................................... 3-3 3-3 Care of Recording Paper .......................................................... 3-5 3-6 3 4 During Measurement .......................................................... Section 4 Screen Displays and Settings ...................................... 4-1 4-1 Screen Displays ........................................................................ 4-2 4-3 4-1-1 Screen Configuration ........................................................ 4-1-2 '&pa of Screen Display.................................................... 4-3 4-2 Changing the waveform. status. trigger. system screens ........ 4-3 4-3 Function Changing ................................................................... 44 Section 5 Basic Operation.............................................................. 5-1 5-2 5-1 Setting Method ................................................................... 5-1-1 Setting Procedure ............................................................. 5-2 5-1-2 Example Settings .............................................................. 5-2 5-1-3 Basic Setting Items for each Function .............................. 5 4 5-2 Starting and Stopping Measurement ..................................... 5-14
5-3 Printer Operations ................................................................. 1 5 5 5-3-1 Q p e s of Recording and Functions .................................. 5-15 5-3-2 Setting the Style for Recording on the Printer...............5-16 5-33 Recording on the Printer ................................................ 5-17 5 5-3-4 Head Up and Paper End .................................................. 1 9 5-3-5 Head Temperature Protection Function .........................5-19 5-4 Zero Adjustment .................................................................... 5-20
Section 6 Memory Recorder Function MODE..............................6-1 6-2 6-1 What is the Memory Recorder Function?................................ ....................................................................... 6-1-1 Introduction 6-2 6-3 6-1-2 Finding Reference Material in this Manual....................... 6-2 Display Screens ........................................................................ 6-5 6-3 Basic Operational Procedures ..................................................6-9 6-3-1 Operational Flow............................................................... 6-9 6-3-2 Example of Operation .....................................................6-10 6-4 Auto-Range Function ............................................................. 6-12 ................................................................ 6-5 Roll Mode Function 6-12 6-13 6-6 Using X-Y Waveform Plots ..................................................... 6-7 Numerical Calculation ............................................................ 6-14 Section 7 Recorder Function MODE ............................................ 7-1 7-2 7-1 What is the Recorder Function?............................................... 7-1-1 Introduction ....................................................................... 7-2 7-1-2 Finding Reference Material in this Manual.......................7-3 7-2 Display Screens ........................................................................ 7-4 7-3 Basic Operational Procedures .................................................. 7-8 7-3-1 Operational Flow ............................................................... 7-8 .......................................................7-9 7-3-2 Example of Operation
Section 9 CONT X-Y Recorder Function MODE ......................... 9-1 9-1 What is the CONT X-Y Recorder Function? ............................ 9-2 9-1-1 Introduction....................................................................... 9-2 9-1-2 Finding Reference Material in this Manual.......................9-3 9-2 Display Screens ........................................................................ 9-4 9-3 Basic Operational Procedures .................................................. 9-7 9-3-1 Operational Flow............................................................... 9-7 9-3-2 Example of Operation ....................................................... 9-8 Section 10 Applications ................................................................ 10-1 10-1 Using the A and B Cursors .................................................. 10-2 10-2 Waveform Scrolling .............................................................. 10-5 Section 11 Trigger Function ......................................................... 11-1 11-1 Overview .............................................................................. 11-2 11-2 Internal Trigger ............................................................. 11-3 11-3 Setting the Trigger Type ...................................................... 11-3 11-3-1 Level Trigger ................................................................ 11-4 11-3-2 Window-out Trigger ..................................................... 11-6 11-3-3 Logic Trigger ......................................................... 11-8 113-4 Voltage Drop Trigger .............................................. 11-11 11-3-5 RMS Level Trigger ..................................................... 11-12 11-4 External Trigger ................................................................. 11-14 11-5 Internal and External Trigger Logical Operator ................ 11-15 11-6 Trigger Modes .................................................................... 11-16 11-7 Pre-Trigger ......................................................................... 11-17 11-8 Trigger Timing ................................................................... 11-19 11-9 Timer Trigger ..................................................................... 11-20 11-10 Trigger Output Terminal ............................................... 11-21 11-11 Level Meter Function ...................................................... 11-22 Section 12 System Screen ........................................................... 12-1 12-1 What is the System Screen? ................................................ 12-2 12-2 Input Level Monitor Function .............................................. 12-3 12-3 Special Function Settings ..................................................... 12-3 12-3-1 Setting the Grid ............................................................ 12-4 12-3-2 Time Value Display ................................................ 12-5 1 2 3 3 Listing and Gauge Functions ......................................... 12-5 12-3-4 Intermittent Printing .................................................... 12-6 12-3-5 Starting Status Backup Function................................... 12-7
8-1 Section 8 RMS Recorder Function MODE ................................... ......................................8-2 8-1 What is the RMS Recorder Function? 8-1-1 Introduction ..................................................................... 8-2 8-1-2 Finding Reference Material in this Manual ....................... 8-3 8-2 Display Screens ........................................................................ 8-4 8-3 Basic Operational Procedures .................................................. 8-8 8-3-1 Operational Flow ............................................................... 8-8 8-3-2 Example of Operation ..................................................... 8-10
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12-3-6 Printing Intensity Adjustment ......................................12-7 12-3-7 Screen Contrast Adjustment ......................................... 12-8 12-3-8 Language Display Setting ........................................12-8 12-4 Appending Comments .......................................................... 12-9 12-5 Setting the Time .................................................................. 12-9 12-6 Scaling Function ................................................................. 12-10 12-7 Saving and Reading the Setting Condition.........................12-12 12-8 Self Check .......................................................................... 12-14 12-8-1 ROM/RAM Check....................................................... 12-14 12-8-2 KEYLED Check ......................................................... 12-14 12-8-3 PRINTER Check ...................................................... 12-15 12-8-4 LCD Check.................................................................. 12-16
Section 13 Input Units .................................................................. 13-1 13-1 Analog Inputs ....................................................................... 13-2 13-1-1 Overview ................................................................. 13-2 13-2 13-1-2 Specifications ................................................................ 13-1-3 Safety Requirements..................................................... 13-3 13-1-4 Input Cables ............................................................ 13-4 13-1-5 Measurement Errors Caused by Signal Source Internal Resistance ...................................................... 13-4 13-2 Logic Inputs.......................................................................... 13-5 13-2-1 Logic Input Unit ..................................................... 13-5 13-2-2 Logic Probe .................................................................. 13-6 Section 14 Maintenance and Service ........................................ 14-1 14-1 Changing the Battery ........................................................... 14-2 14-2 9420 Battery Pack ................................................................ 14-3 14-3 Recharging the Battery ........................................................ 14-4 14-4 Removing the Battery before Ultimate Disposal................. 14-5 14-5 Cleaning the Printer Head .................................................. 14-6 14-6 Troubleshooting ................................................................... 14-7 Appendices .......................................................................................... 1 Index ......................................................................................................I
Introduction
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Thank you for purchasing this Hioki 8804 Memory Hicorder. To get the optimum performance from this unit, please read this manual first, and then keep it for future reference.
Safety Notes
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WARNING This equipment was designed in according with IEC348 Electric Measurement Equipment Safety Standards, and was tested for safety prior to shipment. For high voltage measurement, wrong measure way could be an accident resulting in infury or death, or damage to the equipment. Please read and understand this manual carefully before operating. We take no responsibility for an accident except caused by our products.
Safety symbols
This manual includes important directions for safe operation and maintenance of the 8804 unit. Note carefully the following safety points before using the unit.
DANGER
- never apply morethan 450 V, either AC damage to the unipair of To avoid the danger of electric shock or or da between a
analog input units or between an analog input unit and the main unit. In particular, if a power line capable of carrying a large current is connected, and applies an excess voltage, there is a danger of a short circuit accident. Do not attempt to open the unit cover, adjust, or repair the equipment. To prevent damage to the 8804 unit, never exceed the limits in t the followino table for the various i n ~ uconnections. Inputloutput terminal Maximum capacity 500 V DC + AC peak Analog input EXT TRIG -5Vto+lOV -20 V to +30 V TRlG OUT 500 mA max. 200 mW max. When using the AC adapter, always use the specified 9418 AC adapter. The input voltage range of the 9418 AC adapter is 100 VAC to 240 V. Do not use a power supply that falls outside of this range.
- This symbol indicatesplacethethis manual refer that user should to the corresponding in
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A
1 -
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marked with this symbol, before operating the 8804. Operator must pay special attention to the corresponding explanation in this manual, also marked with this symbol.
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Indicates a grounding terminal lndicates AC DC
The following three levels of heading are also used in this manual to prioritize warnings. DANGER Applies to operations which if carried out wrongly carry a very serious danger of accident to the user, including the possibility of a fatal accident.
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WARNING
A WARNING Applies to important notes on operation and
handling accompanied by a risk of serious injury or damage to the tester. CAUTION Applies to operations which carry the risk of damages to the tester or a failure to cany out measurement correctly. These refer to advisory information about operation and handling.
- the 9420 Batterybatteries, use size AA (LRGP) alkaline cells or When using the Pack. In this case do not use new batteries -
Note
together with old ones. Also, do not mix batteries of different types. We take no responsibility for an accident using the batteries and battery pack which are not specified. When using the 9420 Battery Pack, always use together 3 pairs cell. Do not use different types of batteries. The logic inputs are not floating. Although two sets of logic probes can be connected, they all have a common ground with the main unit. = The unit should always be operated in the range of 5°C to 40°C and 35% to 80% relative humidity. Avoid operation in direct sunlight, in dusty conditions or in-the presence of corrosive gases.
Notes on Use
To ensure safe operation, and in order to exploit to the full the functionality of the unit, please follow the directions in this section carefully. This manual, when heeded carefully, provides the operator with all the information necessary to maintain safe and satisfactory performance. This unit is designed for indoor use and can safety be used at temperatures as low as 5°C to 40°C.
Shipping check When the unit is delivered, check that it has not been damaged in transit In particular check panel switches and connectors. When poor condition under harsh preservation or shipping conditions caused, inspect and confirm this equipment before using. In the event of any damage, or failure to operate according to specification, contact your nearest service representative without delay.
characteristics finely tuned for use - in impaired printing quality,differentwith the printer notfrom result Using recording paper of a specification may only but even prevent the printer operating. Always use the Hioki specified product.
Storage If the unit will not be used for a substantial period, to protect the printer head and prevent deformation of the rubber rollers, move the head up/down lever to the head up position. Shipment If reshipping the unit, preferably use the original packing. Notes If the recording paper is mistakenly inserted back to front, waveform recording is impossible. Be very careful about this point. Before shipping the unit, or when storing the unit for a long time, move the head up/down lever to the head up position. If the unit is left in the state in which the head is applying pressure to the platen roller, the roller may be deformed, and the printing may become uneven. Miscellaneous In the event of problems withe operation, first refer to Section 14-6 'Troubleshooting". Before operating, read each direction in this manual carefully. In the event that the unit appears not to be functioning correctly, contact your nearest Hioki representative or service agent directly. Pack returned units carefully to avoid damage in transit, and enclose full details of the problem. Hioki cannot be responsible for damage to the units during shipping. Refer to appendices, error messages, glossary, and index.
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Before powering on Check that the correct 9418 AC adapter, 9420 Battery Pack, or AA alkaline cells is fitted. Connecting the protective ground terminal The protective ground terminal must be connected to ground. Make the connection between the protective ground terminal and the protective conductor before making any other connections. When using the AC adapter and if properly grounded three-pin outlet is available, then using the threecore power cord provides automatic grounding.
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Using the printer Using the printer for low-speed printing (the recorder function) in a high-temperature or high-humidity environment should be avoided at all costs. This can seriously reduce the printer life.
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Recording paper This unit uses a thermal printer. The recording paper supplied has
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Chapter Summary
Follow the introduction to Chapter 1, which describes precautions on use, overview, and features of this unit. Check the "Identification of Controls and Indicators" and the unit to c o n k your understanding of the function.
Chapter 1 Chapter 2 Chapter 3
Chapter 1 2 Describes the system screen, and details of special function settings, the scaling function, self check function and so forth. Chapter 13 Describes the input units, including specifications, and important notes on operation. Chapter 14 Covers maintenance, replacement of consumables, and notes on ultimate disposal.
Overview of the unit and its features. Specifications of the main unit, and measurement ranges. Describes setup and preparation for using the unit, loading recording paper, and important points to note during measurement. Describes screen displays and principal basic key operations. Describes the method of operation (settings, STARTI STOP operation of measuring, printer operation) which is common with all function. Explains memory recorder function mode, including examples of operation. Explains recorder function mode, including examples of operation. Explains effective value recorder function mode, including examples of operation. Explains continuous X-Y recorder function mode, including illustrated examples of operation.
Chapter 4 Chapter 5
Chapter 6 Chapter 7 Chapter 8 Chapter 9
Chapter 1 0 Describes the A and B cursors and scrolling operations. Chapter 11 Describes the settings of trigger functions, and how to use them.
Identification of Controls and Indicators
[Front view] 0
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While charging the 9420 batteries, an LED above this key is illuminated red. @ PRINT kev Prints out a waveform stored in memory. COPY key Prints a copy of the current screen display. @ FEED key While this key is being held down, the recording paper is fed forward. @ BACK LIGHT key Turns the LCD back light on and off. When using the batteries and if any key is not pressed for about 20 seconds with the backlight on, the backlight automatically go out. @SHIFT key Changes the function of cursor keys and +, - keys on the waveform screen. Enables or disables to display the position of the waveform for the whole recording length. 0 LCD display screen @ Printer
a
[Right side view]
@ MENUNAVE key
Changes the screen display.
@ Cursor keys
These four keys move the flashing portion on the screen display (the flashing cursor) up, down, left, and right Pressing the SHIFT key, the A and B cursors can be moved. @ +, - keys Selects the measurement condition of the flashing cursor Pressing the SHIFT key, the waveform scrolling is possible. @ STOP key Stops operation of the 8804. 8 START key Starts measurement and analysis. During measurement, an LED above this key is illuminated green.
0 Analog input connectors
These are input connectors for analog inputs, unbalanced input type (channels 1 and 2). [HI: High level input [L]: Low level input @ Logic probe connectors These are the input connectors for the logic inputs, and are only to be used for the optional logic probes. A maximum of two logic probes can be connected (channels A and B).
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[Lower side view]
@ POWER switch
@ Protective grounding terminal
- Turns the power supply on and off. - Connect to ground. @ AC adapter connecting terminal
Use the specified 9418 AC adapter. @ EXT I TRlGrTRlG OUT terminals The external trigger facility can be used to synchronize a number of 8804 units for parallel operation.
Chapter 1
Overview
[Bottom view]
@ Battery compartment
Six size AA (LRGP) Alkaline battexies or 9420 Battery Pack can
be installed.
(6) High powered trigger capability
1-1 Product Introduction
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The 8804 Memory HiCorder is a new type of waveform recorder that can perform observation and recording simultaneously. It provides both analog and logic input channels, and can be used for each and every application, from low speed phenomena to high speed phenomena.
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A digital trigger circuit is used. Many and various settings are available, with functions such as trigger level, trigger slope or trigger filter, or types such as windowsut trigger, or any other digital function. The trigger operation is possible at voltage drops in commercial power supplies and varying the effective value.
The main features of the 8804 are:
(1) A compact, light and portable unit
Because the 8804is compact and it is highly portable. - can be powered either through anlight,adapter or by batteries. it The 8804 is also extremely convenient as a portable unit, since AC
(2) Analog inputs and logic inputs
(7) Quick and easy to see waveform reference and observation The unit has a 4.9 inch (320 X240 dot) liquid crystal display. (8) Recording of the required portion at the required time By using a fast thermal printer which has a high resolution of 10 mm/division, only the required portion of the recording need be taken. A screen copy can be easily printed at any time.
(9) High grade intelligence
A 8 channel logic input unit is fitted. The logic inputs all have a common ground with the main unit. The data for two channels of analog inputs and eight channels of logic inputs can be simultaneously displayed and recorded.
(3) Powerful waveform capture capability
The 8804 is provided with high grade auxiliary functions, such as the use of cursor measurement, a wealth of calculation functions, etc.
(10) Scaling function
- The 8804 can reliably capturethe very high samplingitspeed9-bit400 sudden events, since has high resolving power, operates at of
kS/s, and has a maximum memory capacity of 64 k words (when channel 1 is being used).
- units used,theisphysical amount of input signal data,the name of the By setting and it possible to convert measured which are
obtained as voltage values, into values in set units.
(4) Floating analog input units
- The analogindependentfloating, and so each input can be connected inputs are to its own potentials.
The 8804 is provided with several function modes: a Memory recorder function mode (also providing an X-Y plot function) for reliably catching high speed dhenomena such as transient phenomena; a Recorder function mode which is capable of continuous real time recording over a long time period; a Continuous X-Y recorder function mode for X-Y plots; and an RMS recorder function mode which is capable of measurement of commercial power supplies voltage value by the effective value.
1-2 System Operation
The following page shows a block diagram of the system. O T h e 8804 incorporates a 8-bit microcomputer (CPU), which controls the entire system. QThe analog input units incorporate 9-bit A/D converters, and are connected to the 8804 main unit via photocouplers. (The photocouplers are in the analog input units.) Each channel uses a separate power source, which is completely electrically insulated from the main 8804 unit.
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(5) Four function modes corresponding to various types of measurement
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2-1 Main Units Specifications
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(for the analog inputs, refer to Chapter 13) . Charge function
(1) General specifications
[Basic specifications] Measurement functions :Memory recorder (high speed recording) Recorder (real time recording) RMS recorder (effective value for commercial power supplies recording) CONT X-Y recorder (continuous X-Y recording) :2 analog channels 8 logic channels. Number of channels The logic and analog channels are standard equipment for the 8804. :64 K words. Memory capacity (Analog 9 bit + logic 4 channels) X 64 K words per channel (when ch 1 is in use) (Analog 9 bit + logic 4 channels) X 32 K words per channel (when ch 1 and ch 2 are in use) Maximum sampling speed:400 kS/s (All channels simultaneously). Time axis accuracy : +0.01% (discrepancy between grid and actual time) Operational ranges for temperature and humidity: temperature 5°C to 40°C, relative humidity 35% to 80% (with no condensation). Insulation resistance and Dielectric strength :at least 10 M m 0 VDC; one minute at 1.5 kVAC (between the main unit and the primary side of the 9418 AC adapter). at least 100 Mn/500 VDC; one minute at 2 kVAC (between the analog inputs, between the analog input and the main unit). :Depending on the 9418 AC adapter Power supply (powering at 12 VDC f 10%) (AC adapter rated power supply voltage ... 100 to 240 VAC) With six AA (LRGP) alkaline cells can be powerd.
Dimension and weight [Recorder] Method of recording
(Note) The AC adapter is prior to batteries, when using together. 9420 Battery Pack can be used. 20 V m a . when using the AC adapter A 15 V max. when using the batteries A :Charge mode when the 9420 Battery Pack is in use, the AC adapter is connected, and the power switch is OFE Charge time: 2 or 3 hours approx. :approx. 160 (H) X 245 (W)X 51 (D) mm approx. 1.2 kg
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:thermosensitive recording method using a thermal line head. Recording paper :roll type thermosensitive recording paper, 74 mm CN) and 10 m (long) Width of recording :total recording width 72 mm (576 dots) waveform portion 60 mm f.s. (1 DIV=10 mm, 6 DIV f.s.) Recording speed :maximum approx. 2 s/cm Feed dimension accuracy: +3% :approx. 4.9 inch LCD display (320 dots) :0.31 mm X 0.31 mm
X
[Display] Screen Dots spacing
240
(2) Trigger unit
Trigger method Trigger modes
Trigger source
:Digital comparison method :in the memory recorder function ... SINGLE, REPEAT, AUTO in the recorder function ... SINGLE, REPEAT :ch 1 (logic A), ch 2 (logic B), external, and timer trigger sources. If all are off, the unit runs free. Trigger conditions can be set for each channel individually.
With an external trigger, the triggering occurs on a falling edge of 2.5 V, or when the terminals are shorted together. Trigger combination operator: logical AND or OR Types of trigger (analog) :level trigger, window-out trigger, voltage drop trigger (for commercial power supplies), effective value level trigger. Types of trigger (logic) :pattern trigger specified by 1,0, and X (X; 1orO). :Available the amount of filter can be s e t Trigger filter Trigger level resolution :1% f.s. (f.s. = 6 DIV). :0,5, 10, 25,50, 75,90,95, 100, -95% (in Pre-trigger the memory recorder function mode). :Open collector output. (with 5 V output Trigger output voltage, active low), pulse width 1.9 ms minimum Trigger input and :Mini-jack (3.5 mm dia.) output connectors
Auto-print Manual print Partial print Numerical print Time axis (timeldiv)
:Can be set to ON or OFF ... automatically prints the memorized waveform. :Available. : r n s between the A and the B cursors. Pit :Measured data is recorded as digital values. :200,500 ms/DIV, 1 1 I V (display only) 2, 5, 10,30 s/DIV; 1,2,5, 10,30 min/DrV; 1m I V :80 line/DIV (with the printer) :400 kS/s fixed. :20,50,100,200,400 D! CONT F . :SINGLE, DUAL :Only line display.
(4) Recorder function
(3) Memory recorder function
Time axis (timeldiv)
:200.400 us/DI\!
1 , 2 min/DIV Time axis resolution :80 pointsDIV. :1/80 of the time axis. Sampling period :20,50,100,200,400 (channels 1 and 2), Recording length 800 DIV (only channel 1) :SINGLE, DUAL, XYDOT, XYLINE Screen-print format lnterpolation function :Available, only line display for the SINGLE and DUAL Waveform magnification and compression ratios : X 10, X 5, x 2 , x 1, x V2, x fi,x 1/10, x 1/20, X 1/50, X 1/100 (along time axis) x 4, x 2, X 1, X 1/2 (along voltage axis) :Available in both the leftlright and the up/ Waveform scrolling down directions. For the scrolliig of up/down direction, change the zero position.
Time axis resolution Sampling speed Recording length Screen. print format Interpolation function Waveform enlargement and compression ratios : X 1, x UZ, x fi, X U10, X 1/20, x 1/50 (along time axis) X 4, X 2, X 1, X 1/2 (along voltage axis) Waveform recording :The last about 200 DIV are held in memory. Print function :Switching ON or OFF and reprinting function Numerical print :Measured data is recorded as digital values.
(5) RMS recorder function
Time axis (timeldiv) Time axis resolution Sampling speed RMS accuracy Measuring object Recording length Screen-print format lnterpolation function
: 5.10.30 s/DIV
:80 line/DIV :4 kS/s fixed (16 rms data/s) : "3% f.s. (at 50/60 Hz +2 Hz)(f.s.=6 DIV) :commercial power supplies (50/60 Hz) :20,50,100,200,400 DIV, CONT :SINGLE, DUAL :Only line display
Waveform enlargement / and compression rates : X 1, X 1/2, X 115, X 1/10, X 1/20, X l% (along time axis) x 4, X 2, X 1, X 1/2 (along voltage axis) :The last about 200 DIV are held in memory. Waveform recording :Switching ON or OFF and reprinting Print function function. Numerical print function :measured data is recorded as digital values.
2-2 Tables
In the memory recorder function
(6) CONT X-Y recorder function
X and Y axes Sampling rate Effective recording dimensions Recording time Interpolation function Superimposition Monitor function Print function
:X axis ... ch 1, Y axis ... ch 2 : 5 ks/s (dot) 2.5 ks/s max. (line)
:60 mm X 60 mm (6 DIV X 6 DIV) with the printer :unlimited. :Available - dot, line. :Possible. :Monitor display on screen :Manual printing, screen copy
(7) Auxiliary
Scaling function :Available Comment input function :Available comment input possible : ON, OFF Auto list. gauge Numerical calculation :maximum value, minimum value, peak function value, average value, effective value, area value Cursor read out :possible Waveform back up :Available function Setting condition store :Available, up to 4, save the setting function condition in file format. Starting status :Available backup function
* Calculation with recording length 800 DIV (only ch 1 is in use.)
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Chapter 3
Setup and Preparation
3-2
3-1 Points to be Attended to During Setup
(1) AC adapter Always use the specified 9418 AC adapter. The AC adapter is prior to the battery when using together. (2) Battery Use the specified 9420 Battery Pack or size AA (LR6P) alkaline cells. Never use with other batteries, such as manganese cells, etc. If not recharge batteries, the 9420 batteries can not be used. Note that performance will suffer if old and new batteries or batteries of different types are used together. Especially do not use the 9420 batteries together with different types. If the battery voltage drops while the unit is running off of battery power, the 8804 will automatically switch off the power supply. Note that if the unit is left in this state for an extended period of time, the battery pack may be discharged too much. When the battery capacity is reduced, the power is automatically turned off. Before turning on the power again with AC adapter or new batteries, turn the power off and leave for about 30 minutes. For the details on changing and charging batteries, refer to Section 14-1 "Changing the Battery" and Section 14-3 "Recharging the Battery".
(3) Protective grounding:
- Whenconnect the unit to a goodifground connection. plug cannot be using the AC adapter and a grounded power used,
- Be sure to ground the 8804 properly even when using batteries.
(4) Environment for use: The temperature and humidity ranges for use of the 8804 are 5°C to 40°C and 35% to 80% relative humidity. Also, do not expose the unit to direct sunlight, dust, or corrosive gas.
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3-2 Loading Recording Paper
OPull the stock cover to open.
,Stock cover
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[Effective battery-powered operating time (typical value at normal temperature)] Operating condition Alkaline battery 9420 battery pack Printer not operating approx. 90 min waiting for trigger, etc. approx. 160 min Printer operating recorder function approx. 90 min approx. 50 min 2 dDIV 1 Hz sinewave
@Raise the head up/down lever.
/
Head upldown lever
rimiq
Actual performance will vary from values indicated in this table according to the types of batteries, temperature, and printing rate.
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@Insert the attachments into the ends of the roll of recording paper. Insert the leading edge of the paper from under into the gap behind the printer roller, and pull it out upward.
OClose the stock cover, and finish by tearing off the recording paper against the edge of the printer exit slot.
m out the unit in the head uo condition when it is to be Alwavs
@Set the paper into its holder and pull it out about 10 cm,and make sure that it is positioned quite straight. transkited or if it is to be storeifor a long period of time. If the unit is left to lie in the state where the roller is being subjected to pressure by the head, then the roller may become deformed or the characters may become uneven. Particularly care should be taken not to put the recording paper in back to front by mistake, because if this happens the waveform cannot be drawn.
3-3 Care of Recording Paper
Do this very carefully, because if the recording paper is slanted with respect to the roller there is a danger that later a paper jam will @Put down the head up/down lever. @Pull the recording paper to the outside through the printer exit slot in the stock cover. Thermosensitive recording roll paper which until use is kept in normal conditions will not be affected by the environment However the paper should not be kept for a long time at a temperature higher than 40°C. Low temperatures cause no problems. There is a tendency for the texture of the paper to be discolored if the paper is strongly illuminated for a long time. Therefore, after taking off the wrapping paper, be careful not to leave the roll paper in strong light
How to store your data Because the recording paper is thermosensitive paper which takes advantage of thermochemical reactions, attention should be paid to the following points in order to maintain the integrity of the recorded data.
Do not expose the paper to direct sunlight Keep the paper in conditions below 40°C and 90% relative humidity. The proper way to file and store recorded data is to take the trouble to copy it. Thermosensitive paper changes color if it comes into contact with volatile organic solvents such as alcohols, esters, and ketones. If thermosensitive paper absorbs a non-volatile organic solvent such as an alcohol, an ester, or a ketone, its colorability is reduced, and fading of the recorded portion can occur. Be careful, because various types of pressure sensitive tape such as cling film or adhesive tape are in fact included in this class of non-volatile organic solvents. Do not put recordings and wet diazo copies on top of one another.
3-4 During Measurement
A DANGER The permitted input voltage at the input terminals of the analog input is 500 V (DC + AC peak). In order to avoid electric shock accident and damage to the equipment, be extremely careful not to exceed. The maximum floating voltage for the analog inputs is 450 VACIDC. In order to avoid electric shock accident and damage to the equipment, be extremely careful not to exceed the above voltage, either between any two channels, or between a channel and the main unit.
fi WAKNINti
Chapter 4
Screen Displays and Settings
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T h e logic inputs and the 8804 have a common ground. When measuring input which has different reference potential be sure to electric shock.
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4-1 Screen Displays
For each function the screen displays can be divided into three screens: waveform, status, and trigger; and there are also three system screens. The Memory recorder function mode has a numerical calculation screen.
I
4-1-2 Types of Screen Display
O T h e status (stts) screen The general settings, such as time axis or recording length, can be made. @The trigger (trig) screen The trigger condition can be set. @The waveform screen This is a screen for displaying the measurement results. The main setting items can be also set on this screen. @The system (SYSTEM) screen (Input level monitor screen) :Displays level monitor (page 1 screen) :System variable, comment setting, and clock setting are performed. (page 2 screen) :Scaling, saving the setting condition, and each check are performed. @The numerical calculation screen The numerical measurement is performed.
4-1-1 Screen Configuration
1
Memory recorder Waveformm n
-
Mm r recorder e oy
Stahlsscreen
Memory recorder
Tigr rge
A
1. Ndddmhbmstnn A
4
v
Recorder Waveform m u
I
'I'
A
I
v
RMS recorder Waveform m n
v
RMS recorder Stnhls m u
v
RMS recorder
A
3
T i g rs m n rge A
4-2 Changing the waveform, status, trigger, system screens
Press t h e l ~ ~ ~key, and the screen dis~lavs u ~ ~ ~ v ~ l - . change as shown in the screen configuration of the previous page. Pressing thelsTARTl key, the measurement will be started on any screen except the system screen, and changes to the waveform screen.
v
A
-
System
hputlevelaraitasaeen
System
Page 1 s a w n
System Page 2 m n
+: When pressing the[MENUWAVElkey, the screen displays change in the arrow direction of this configuration. 1 G : When pressing the k3 key after moving the flashing cursor with the function item, the function changes in the lower direction of this configuration, and also pressing key, the function changes in the upper direction.
4-3 Function Changing
1. Using the cursor keys, move the flashing cursor to the function
item.
2. Select the function by using the
Flashinr! cursor
and H keys.
TOI l ade: OFF auto print: OFF fomt: WPL ch new: SETTIN?
4
WAVE
L
+
keys
-
-CURSOR16CROU--
I
to-WWLNT
and
Cursor keys
R !l SiB
R C P rpUS XYOMT SYSTEM EGD
Chapter 5
The language to be displayed can be changed (refer to Section 12-3-8. "Language Display Settingf?.
rFe%zGl
Basic Operation
5-1 Setting Method
By using the cursor keys, rn and settings can be made.
i keys, and IMENUMIAVE~ E
key, all
1
5-1-1 Setting Procedure
1. Change the screen display to the screen of setting item.
2. To set the function to recorder (RECORD): musing the cursor keys, move the flashing cursor on the function item. @By using the Iand keys, 3 select RECORD.
format:
CUAL
auto Print: OFF ch vlw: S T I G E TN
2 Vl 3.WN
2V xlf
OFT
+ IMENUNVAVE]
key
2. Move the flashing cursor to the item to be set. + Cursor keys 3. Select or change the settings. + 13, keys fl
@
- When making asetting contentsscreen except on the lower screen. setting on the the waveform screen, the selectable are displayed
- On the waveform screen if t
h e m key is pressed ( t h e m mark indication is displayed), the setting can not be changed by using the 3 cursor keys and B, i keys. Release the lsHlFTl key so that the mark indication go out.
musing the cursor keys, move the flashing cursor to time. @By using the and keys, set to 5 s.
5-1-2 Exam~le Settings
Settings will be performed on the status (stts) screen, for the record& function.
1. Press ~ ~ ~ I M E N U W A V E ~ key, and the status screen (stts) will appear.
roll mode: OFF farmat: SINE chl:n
1
auto Prlnt:
Off ch VIW: W G N I
4. To set the recording length to CONT: musing the c m o r keys. move the flashing cursor to shot. @By using the and fl keys, set to CONT.
I I1
/
.RECORD= tire: l*t:
(sttsl
'94-67-3308:18:11
Off
sfnlv bm pri ~ X M : ME auto Prlnt: mk ch vLw:
fomt:
1
drawmsemf~d~v) m. f ~ t chl:l 2V XI( 2 V 3 I l . Y OFF W 1 1 XI( 1 Vl 3.00N OFF V m . 0 (0 ad~ustl chB:o
5. To set the screen setting to
single (SINGLE). OUsing the cursor keys, move the flashing cursor to format. @By using the rn and i3 keys, set to SINGLE.
yot: fornat: chl:l auto Print: OFF ch view: SLI;INGJ
2~ xl( 1 xl( V 2 VI 3.~11~ FF O 1 Vllo3.0?!Ve+,0FF
I
2V XI( 2 Vl 3.WN
OFF
ci-21
W k.
Make a setting for the rest items in the same way.
RMS recorder
I!
5-1-3 Basic Setting Items of each Function
Function Memory recorder OTime axis range
: 5. 10.30 s/DIV
/
I
Recorder
I
RMS CONTX-Y recorder recorder
I
0 0 0 0 x
0 0 0 0 x
0 0
0 1 ° 1 1 0 1
x
X
!
I
@Magnificatiodcompressian along the time axis range QRecording length @Screen setting (format) OFrequency OLine style @Channel information @Waveform disnlav . . @Voltage axis o(,Y axis) range Onput counlina . .
@Mag~fication!comp~ssion along the voltage axis range @Position -
m Memory recorder function. the sam~linr! is 1/80 th In the . - .period
of the set value for the time axis range.
/~Magnification/compression along the time axis (
p~
x x x
0
I @Waveform clear
x
X
x
X
x
X
1
0 0
I O
0
0 0
I O I
0 0 0 O 0
0 0
X
1 ° 1 0 1
0
l O l l O
!
1 I
0 O
0
The magnification/compression ratio along the time axis can be set By magnifying the waveform, detailed observations can be made. By compressing the waveform, an entire change can be promptly apprehended. In the Recorder and RMS recorder function modes the magnification setting is not possible. The waveform is magnified or compressed from the end of the left on the screen.
I
i
I
@Filter @Trigger setting
l o l o l o l o
O
l
0
1 ° 1 0 1
0
0
0: setting possible, X : can not b e s e t (For the trigger, refer t o Section 11 'Trigger Function")).
I@Time axis range I
The following values show the time interval along the time axis direction for 1 DIV (a scale of the recording paper).
Selections Memorv recorder : 200,400 us/DIV
II
I
I\' XI
SODIV o
1Y xl
3.W
I
Recorder
: 200, 500 mslDIV 1 s/DIV (Only display)
2, 5, lO,3O s/DIV
Selections Memory recorder : X 10, X 5, x 2, x 1, x 112, x 115, x 111 0, x1120, x1150, x1/100 Recorder . x l, X1/2, X1/5, X1/10, X1/20, ~ 1 / 5 0 . RMSrecorder :X1,X1/2,X1/5,Xl/lO,X1/20,X1/50
!
;
I @Recording length I
The length of recording for one measurement operation (number of DIV) can be s e t Selections Memory recorder : 20,50, 100,200,400 DIV (ch1, ch 2) 800 DIV (ch 1 only) Recorder :20,50,100,200,400 DIV, CONT RMS recorder :20,50,100,200,400 DIV, CONT /@screen setting The style can be set for showing input signal waveforms on the screen-disolav and recording them on the printer. The styles S~NGLE DUAL are available. Only in the Memory and recorder function, X-Y DOT and X-YLINE are available.
I
I
@DUAL Display and record as two graph (on each graph, at most an analog signals and 4 logic signals). Input waveform for ch 1(A) is displayed on the graph 1, and the data for ch 2(B) is displayed on the graph 2.
Input waveform
I
Input waveform
-
MG
1
I
1
!
Selections Memory recorder :SINGLE, DUAL, X-Y DOT, X-Y LINE Recorder :SINGLE, DUAL RMS recorder :SINGLE, DUAL @SINGLE Display and record as one graph (at the most, 2 analog signals and 8 logic signals).
@X-Y DOT, @X-Y LlNE Display the X-Y combination of waveforms (refer to Section 6-6 sing X-Y Waveform Plots") The ch 1 is X-axis and the ch 2 is Y axis. The display and printed recording show one X-Y graph.
-
~nput waveform
Input waveform
1 I
I
,
The difference between X-Y DOT and X-Y LINE is whether linear interpolation is performed or not (refer to the next page "Line style"). ~ ( R recorder only) M S
Input waveform
~ n p uwaveform t
AAA
-
~
The 8804 is designed to measure commercial power supplies (50160 Hz).
I @Waveform clear ~(CONT recorder only) X-Y
When t h e m key is pressed to start measuring, and then the previous waveform is left, set whether clear the waveform. If the waveform is not be cleared, the waveform superimposition is performed.
MI
0.0
..h a- information I. - n n e l .. . m -
. Display the information of the input setting or upper and lower limit
values on the waveform screen.
Selections
1
SElllNG :displays the setting items (waveform displays,
voltage axis range, etc.) rating to the input.
UP & L0W:displays the range of the voltage value to be
displayed (upper limit value).
v
r: OFF
m XI m XI
I
I
Waveform (disp) clear: ON
Waveform (disp) clear: OFF
1~C N -( O T
X-Y recorder only)
Setting
Upper and lower limit
It is possible either display and record the input signal (the sampled data) just as it is, or after subjecting it to linear interpolation.
/@waveform display
- Set the channel to be displayed or recorded to ON.
Analog ch 1, ch 2
I
r. OFF
2v xl
- performed. Linear interpolation is not
In principle the sampled data is faithfully displayed just as it comes.
Dot display
Line display
Linear interpolation is performed. The display is easier on the eye.
Logic ch A, ch B
[@voltage axis (X, Y axis) rangel
\ The zero position can be set for each channel. When the magnification/compression ratio is set to X 1, the selections are -0.4 DIV to 6.4 DIV Refer to the lower table on others. When the position setting is 3 DIY 0 V appears at the center of the screen (50% position). At the X 1 setting, set the position to 0 DIY 0 V appears at the 0% position of the screen, and set the position to 6 DIV, 0 V appears at the 100% position of the screen. The range for the position varies according to the magnification1 compression ratio along the voltage axis.
-0.4to 6.4
Set the voltage value for 1 DIV along the voltage axis (vertically) direction. The ch 1 is shown along the X axis and the ch 2 is shown along the Y axis (at X-Y plot).
Selection 20,50,100,200,500 mVDIV 1,2,5,10,20,50 VDIV 100 VIDIV (excluding the RMS recorder)
Flashing cursor
-
I @Input coupling I
Set the coupling condition of the input signal.
I
Position
-0.4to 6.4
-6.8 to 12.8 -19.6to 25.6
(unit: DN)
I
Selections DC M :The i n ~ usimal is t
,
to the input amplifier. This allows a DC component to be measured. GND (4 :The input signal is not connected. This allows the zero position to be checked.
draw rame zoom (Idiv) ws.
to-MEASUREh4EM
\
draw ranse 2 m (/div) chl:m 20mV xll iDmV)
to-MEASURMENT
~ l i s t icursor i~
Flashing cursor
If the applied voltage to the analog inputs exceeds the maximum input voltage at X 1/2 compression setting, the waveform is displayed as figure below. Change the voltage axis range.
. along . -~@~agnifiction/com~ression the voltage axis range - ....
I
For each channel, the magnification ratio along the voltage axis should be set.
Selections x 4 , x 2 , XI, XI12
draw ranse z m (idiv) POS. m f 1t OI . 20mV) 3 DY OFF 20m\l) 3.WIV OFF (0 ad~ist) chB:O to-MEASUREMENT I
W i ' t ? l s : S I N G Ul1 OFF i 20W . . m; . . 1 . .: csr:. .OFF ... 1 ... .
. . . ......
1
x% 5I x2 x4/
Flashing cursor
Background The position has the significance shown in the figure below. It is possible to display the hidden portion of the waveform, according to the relative position of the displayed section at which 0 V appears.
m CONT X-Y recorder function, even if the ~ositionis changed In the
after the measuring completion the'hidden portibn of the waveform can not be seen, since the time axis waveform for each channel is not stored.
(1)Time axis waveform
pq
Low-pass filters (cutx~ff frequency) internal to the analog inputs can be set. With such internal filters the frequency can be restricted. This has the good effect of getting rid of the following phenomena:. OIn the case of level recording in the Recorder function mode, because of high speed sampling and high band amplification, the influence of ripple components and noise in the signal can thicken the recording line. @It can happen that, because ripples are present in the output of transducers and the like, the recording line becomes thick. @In the RMS recorder function, a good effect is produced with regard to pulse type noise.
Selections OFF, 500 HZ, 5 HZ
ODIV
Displayed
I
A/D data
1
"
Position
ODIV
3I DV
(2) The X-Y combination of waveforms
I
zocm !/div ch1:r d m XI! OV 20mV ch2:o 20m\f xl( 20mV chA:l chE:D OFF FiiE 5H2
&8w rsnge
I
I
/ Flashink cursor
/
ODIV
0'-
!
0
256 (OV)
I X axis 511
5-2 Starting and Stopping Measurement
Measurement is started by pressing the =key. While is measurement is taking place, the LED above this =key illuminated. When measurement has finished, the LED goes o u t
1. Press the= key. Measurement will start. 2. Press the ETGLj key. Measurement will stop.
..----
@Stopping measurement (in the Memory recorder function): During reading the waveform data in the range which the setting of the time axis range is more than 20 ms/DN, even if the isToPlkey is pressed, until reading in and storage of waveform data has finished, the LED above t h e m key is illuminated and measurement operation continues. If the time axis range is 20 ms/DIV or less, the waveform is displayed to the sampled point. When the trigger mode is set to REP or AUTO and when stopping the operation after reading the waveform data, change the trigger mode to SING without pressing the isToPlkey. If t h e m key is pressed again, this stops the reading in and storage of the waveform. At this time, if the trigger mode is SINGLE or the recording length is more than 400 DIV, the waveform is not displayed.
.
1
~Measurement starting and stopping in the three trigger modes: (a) When the t r i a ~ e mode is SINGLE: r .. Press t h e m key and if the trigger conditions hold, an amount of data of length equal to the recording length will be read in and stored. Without pressing the isToPlkey, the system will go into the measurement finished state. (b) When the trigger mode is REPEAT: Press t h e m key and, if the trigger conditions hold, an amount of data of length equal to the recording length will be read in and stored. Thereafter, every time the trigger conditions hold, data will be read in and the contents of the memory will be overwritten. Press t h e m key or change the trigger mode to SINGLE and measurement will terminate. (c) When the trigger mode is AUTO: Press t h e m key and wait a second for the trigger conditions holding, after that whether or not the trigger conditions hold, an amount of data of length equal to the recording length will be read in and stored. Thereafter, repeatedly, data will be read in and the contents of the memory will be overwritten. Press the isToPlkey or change the trigger mode to SINGLE and measurement will terminate.
+
5-3 Printer Operations
5-3-1 Types of Recording and Functions
Recorder Manual print
RMS
recorder
CONTX-Y recorder
Partial print
~ u t print o
I
Screen conv . r i n t I ., ~
0 0 0 0
0 0 0
I
0
-
I
0 0 0 0 -
0
X
x
I
0 -
0: possible, X : not possible
I
-
- While printing out, the back light forcibly goes off.
5-3-2 Setting the Style for Recording on the Printer (Types of print)
5-3-3 Recording on the Printer
@Manual printing (all function) This prints out the stored data from one measurement for its entire recording length. Since the measurement data is saved in memory, it can be reprinted as many times as required.
- There are two styles forand as numerical values (LOGGING),print, recording on the manual and partial as a waveform (WAVE) and
either of these can be selected. In the CONT X-Y recorder function, the recording as numerical values is not possible.
rn(onflashing cursor to the status screen) 1. Move the
prt kind.
Flashing clnsar
rn - finished, press t h eis m key. When measurement
(The A and B cursors displayed on the screen are not printed.)
f -
PRINTER
7 -
2. By using the and R keys, select WAVE or LOGGING. 3. When LOGGING is selected in step 2, move the flashing cursor to interval and set the data interval to be printed out.
Selections 1, 8, 16, 40, 80, 160,400, 800, 1600 samples Note: 1 DIV = 80 samples
&W
&kq
&kn
-
In the CONT X-Y recording function. the recordine as numerical values can not be performed. Pressing t h e m key except during measuring, the recording paper is feeded.
-
@Partial printing (Memory recorder, Recorder, RMS recorder function) Using the A and B cursors, it is possible to print out only the desired portion of the entire length of the recording. The part of the waveform delimited by the two cursors is printed. When only A cursor is selected, ... . i the waveform data h m the A cursor is printed out.
INoie"j
In the Recorder and RMS recorder function, however the maximum and minimum values are saved in memory as data, the maximum value is printed out at printing as numerical values.
1. Using the A and B cursors indicate the part of the waveform which is desired to record. 2. Press thelPRINTl key. For details about the A and B cursors, refer to Section 10-1 "Using the A and B Cursors". Partial printing can be used for both waveform printing (WAVE) and numerical printing (LOGGING).
The portion printed out
M
rn the roll mode is set to ON (only Memory recorder function) at When
the auto-printing, the partial printing is not possible (refer to Section 6-5. "Roll Mode Function").
@Auto print (Memory recorder, Recorder, RMS recorder function) After reading the waveform data, automatically the data is printed o u t (Memory recorder) Records on the printer simultaneously with the reading data. (Recorder, RMS recorder) In the time axis range which is faster than 2 s/DIY this printing is not possible. (Recorder) The intermittent printing rate diiers during operation, depending on whether power is being supplied through the AC adapter or from batteries (refer to Section 12-3-4"Intermittent Printing"). -(on the status screen) 1. Uslng the cursor keys, move the flashing cursor to auto print. 2. By using the select to ON. If OFF is selected, the
Flashing cursor
@Screen copy printing (all function) It is also possible to make a direct hard copy of the screen display exhibited when the waveform screen, status screen, trigger screen, or system screen is being shown.
. Press t h e m key.
1-1
It 1 poss~ble supplement manual or auto printing of a s to waveform with a listing or gauge (refer to Section 1 2 3 3 "Listing and Gauge Functions'?.
5-3-4 Head Up and Paper End
When the printer head is up, the printer will not operate. An attempt to carry out a printing operation produces the following error message: "ERROR 2: Lower the printer lever." If the printer paper runs out, printing stops. The next attempt to carry out a printing operation produces the following error message: "ERROR 1: Reload the printer paper."
shot:
drniJ
2ODlV
interval :
rmse zoom [ / d ~ v ) p a .
5-3-5 Head Tetn~erat~re Protection Function
The printer has a thermal head equipped with a temperature protection circuit. This cuts out operation of the printer if the head temperature reaches a certain level. It is therefore possible for the printer to stop operating while in use, and temporarily feed blank paper. The tendency of the head temperature to rise is exacerbated by a greater black area being printed, and by a faster paper feed speed. Additionally, higher ambient temperatures make it more likely that the head temperature will rise and trip the protective mechanism. When the temperature protection circuit operates, disabling printing, once the head temperature has cooled appropriately printing is once more possible. If printing stops repeatedly, it may be advisable to adjust the ranges to reduce the area of black printed.
3. Press t h e m key.
- reading.willview isbeenlarged along the voltage axis, printouts on the When the printer also enlarged in the same manner.
The auto printing can be used for both waveform printing (WAVE) and numerical printing (LOGGING). In the Recorder and RMS recorder function, if the printing interval is set to less than 80 at the start of auto printing (auto print ON), the following warning message appears and the interval is forcibly set to 80. 'WARNING 23: Can't set interval to 1-40
-
5-4 Zero Adjustment
- Thisorigin position when a accurate adjustment ofUse it for reading function provides for the waveform to the zero voltage is input.
precise values from the screen or a printed recording or to ensure accurate results from waveform coniputations.
-(on
the 'tat''
screen)
: *MEtMlPY* ( s t t s f
'
1. Using the cursor keys, move the flashing cursor to
(0 adjust).
( shot: trn:
'94-07-Za 08:'&:18 ;
1 I1
~ U V I ~ , ) I Y p r t ~il*: LG E .I 200111 interval:
1
fomt:
SINGLE
ch
2. Press t h e m key.
Chapter 6
Zero adjustment should be performed after about 30 minutes warming up since the power is turned on. Zero adjustment cannot be performed while measurement is taking place.
Memory Recorder Function Mode
6 -2
6-3
6-1 What is the Memory Recorder Function?
-
6-1-2 Finding Reference Material in this Manual
(1) Setting method (basic setting item) (refer to Section 5-1-3. "Basic Setting Items for each Function"). Time axis range, magnificatiodcompression along time axis range, recording length, waveform display, voltage axis range, input coupling, magnificatiodcompression along the voltage axis range, position, filter (2) StarVstop measurement operation (refer to Section 5-2. "Starting and Stopping Measurement). Measurement is started by pressing t h e m k e y , and the measurement is finished by pressing t h e m key. (3) Printing function (refer to Section 5-3 "Printer Operations"). There are two styles for recording, waveform (WAVE) and -. numerical values (LOGGING). There are four methods of printing, manual printing, partial printing, auto printing, and screen copy printing. (4) Zero adjustment function (refer to Section 5-4'Zero Adjustment Function"). This function provides for accurate adjustment of the waveform to the origin position when a zero voltage is input (5) A and B cursors operations (refer to Section 10-1 "Using the A and B Cursors"). The time differences, frequencies, and voltage differences getting a direct digital can be readout on the waveform screen.
(6) Waveform scrolling function (refer to Section 10-2 'Waveform
6-1-1 Introduction
In this function mode, once the input signal has been stored in the memory of the 8804, it can be subjected to various forms of processing. By recording the data, a great number of useful ways of using it become possible: (1) Once an input signal has been stored in the memory, it can be displayed and recorded. (2) Recordingcan be performed for all input channels along the same time axis. Allowing the signals to overlap makes it easier to see their relative relationships. (3) The maximum sampling speed is 400 kS/s. (4) The maximum recording capacity (recording length) is 64 K words divided by the number of channels. (corresponding to 800 DT(! when channel 1(ch 1)is in use) , (5) The time axis s&e can be set ;o any of 18 levels, from 200 ps/ DIV to 2 min/DIV (6) Magnified and compressed display and recording are available, both along the time axis and along the voltage axis: Along the time axis ....... X 10, X 5, X 2, X 1, X 1/2, X 1/5, X U10, x WO, x 1/50, x 1/100 Along the voltage axis ... X 1/2, X 1, X 2, X 4 (7) Three types of display format can be chosen from. For a time axis waveform, SINGLE, DUAL, and for X-Y display and recording are available. (8) Partial printing is available. From a rewrded waveform, it is possible to extract and print only the section which one desires to see. (9) Reprinting is available. Once a waveform has been recorded, it can be printed as many times as desired. (10) With the pre-trigger function, it is possible to inspect the signal before the trigger point. (11)The conversion to the X-Y waveform plot is possible. (12) With the wealth of calculation functions, a captured waveform can be analyzed in various different ways.
-
-
---
~~
~
~
Scrolling"). The waveform can be scrolled vertically and horizontally.
(7) Roll mode (refer to Section 6-5 "Roll Mode Function"). In the time axis range which is less than 20 ms/DIy after triggering, it is possible to start waveform display simultaneously with the waveform readout, scrolling just as during operation in the Recorder function mode.
(8) Screen setting (refer to Section 5-1-3 "Basic Setting Items for each Function" -@). From three types of screens (display format) can be selected. (9) Waveform X-Y plot (refer to Section 6-6 "Using X-Y Waveform Plots").
(10) Channel information function (refer to Section 5-1-3 "Basic Setting Items for each Function" -8). (11)Trigger function (refer to Section 11 "Trigger Function"). The user should select, from the many types of trigger available, one suitable for the objective desired. Level trigger, window-out trigger, logic trigger, voltage drop trigger can be used as the internal trigger. (12)Numerical calculation function (refer to Section 6-7 "Numerical Calculation Function"). Waveform parameter calculation can be performed. (13) Scaling function (refer to Section 12-6 "Scaling Function"). The scaling function allows the units and numerical values for the input voltaies to be converted, so that they can be directly read out as physical values of the parameters which are being measured. (14) Comment input function (refer to Section 12-4 "Appending Comments"). Instead of making handwritten memos on recordings, comments can be input. (15)List and gauge functions (refer to Section 12-3-3 "Listing and Gauge Functions"). These provide voltage axis scales and listings of settings on printed recordings.
6-2 Display Screens
(1) Status screen
0
0---20DlV
i t l m i 2 U 0 u s / D l ~ prt klnd: LoGGI~u::,~
:
OFF
In
interval: 1a u t o ~ r l n t : OFF----@ Ch vlew: SETTIVI;---B
-
$+Zi?Ji
(2) Waveform screen
1_zqmV xl,
0
I
I
I
screen.
I
(ch 1 ) (ch 2) MEMORY, RECORD, Select the function RMS, XY CONT, SYSTEM @Trigger mode SINGLE, REP, AUTO Set whether once or repeatedly recording operation. @Internal trigger OFF, LEVEL, OUT, LOG,DIP Set the internal trigger. @Time axis range 200,400 ps/DN Set the time for 1scale 1,2, 5, 10,20,50, 100, (1 Dm) 200,500 ms/DN The sampling period is 1 2,5,10,30 s/DN , 1/80 th of the s e t value l , 2 mia/DN for the time axis range. @Magnificatiod X10, X5, X2, X l , Set the magnification/ compression along X U2,X l 5 X 1/10, /, compression ratio the time axis X U20, X U50, X Ul00 along the time axis. The A and B cursors @A and B cursors OFF, " f , + , can be used. OWaveform display OFF, ON Select whether or not display waveforms. @Voltage axis range 20,50,100,200, 500 mV/Dn[ Set the voltage axis 1,2,5,10,20,50,100 VDIV range for each channel. @Input coupling V (DC), *(GND) Select the connection for the input. @Magnification/ X4, X2, X I , X112 Set the magnification/ compression along compression ratio along the the voltage axis voltage axis for each channel. @Position -0.4 to 6.4 D N Set the position for (magnification ratio; X 1 ) each channel. (see to Section 5-1-3-@) OFunction
0.CON l03V.xl. @a@ q6 @[email protected] I Q
.
-
.
-
-
. .
--
rn meter function (refer Level
(3) Trigger screen
to Section 11-11. "Level Meter Function'? The level of the analog input signal is displayed on the waveform screen during waiting for the trigger.
'
6-3 Basic Operational Procedures
6-3-1 Operational Flow
The flowchart below illustrates the sequence of operations involved in using the memory recorder function.
@-Pch2.B:
OFF
19=e
Turn the ower on
1 Connect the inputs 1
recorder function mode. for the input signal waveform. for one measurement. axis range less than 20 ms/DIY the waveform can be scrolled. display screen. will be sent to the printer as a waveform or as numerical values.
will occur simultaneously with screen display. and recodme will be performed, voltage axis range, magnificatiodcompression along the voltage axis range, input coupling, and filters.
(3) Set the status screen. Using the cursor keys and 4 H keys, set as same as the setting on the figure right
1 Trigger (trig) scree41
i
I
..
-
(4) Set the trigger screen.
Press ~~~~MENUMIAVE] key to display the trigger screen. Using the cursor keys and N H , keys, set as same as the setting oi the figure right.
awrmmm~~d~v) f ~ t FOS. :I 2~ xi( 2 VI 3.m~ OFF m xlf m1 v v
Status screen
w h
I
j
/
Set the trigger source, the trigger