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Series 9330
Standard Resistors
Very High Stability High Value Calibration Laboratory Standards
G uildline series 9330 Standard Resistors contain
hermetically sealed resistance elements. Its design
is based on a thorough reappraisal of all earlier resistor
designs, the aim of the program being the significant
reduction of each "classical" source of error; temperature
coefficients and variations therein; thermal as well as electrical
time constants; thermal EMF's; and voltage and power
coefficients.
The resistance wire element is suspended in oil in a
hermetically sealed case with a cover plate of low leakage
acrylic. The connections to the resistance element are made in
a four-terminal configuration, with the potential terminals
mounted on the cover plate and the current terminals on the
horns.
All terminals are solid thermal copper to reduce thermal EMF's.
Models 9330-10M & 100M have a cover plate made from Delrin
acetyl thermoplastic and use a two-terminal configuration plus
a ground terminal (no horns).
Values below 10M are designed to be immersed in
temperature controlled oil or air baths.
The 9330 Series hermetically sealed resistance
9330 Features element design is based on a thorough
> Stability < 3.5 ppm
reappraisal of earlier designs.
> Low thermal EMF design
> Nominal Accuracy to < 2.5 ppm
> Report of Calibration traceable to NIST or
NRCC included
> Available from 0.1 through 100M in
decade values
> 4-terminal design up to 1M
> Special values available on request
> Temperature Coefficient < 2 ppm/0 C
> Hermetically sealed in oil
> Designed for use in temperature controlled
oil baths
> Operating Range 18 0C to 40 0C
9330 Standard Resistors
9330 Series Specifications
Nominal Calibration Stability
Nominal Initial Uncertainty 6 12 Temperature Maximum Maximum
Model Resistance Tolerance (+/-ppm) Months Months Coefficient Current Voltage
Value (Ohms) (+/-ppm) (+/-ppm) (+/-ppm) (<+/-ppm/C) (mA) (Volts)
note 1 note 2
9330-0.1 0.1 5 1.5 3 5 3 1000 0.1
9330-1 1 2.5 1 2.5 3.5 2 320 0.32
9330-10 10 2.5 1 2.5 3.5 2 100 1
9330-25 25 2.5 1 2.5 3.5 2 64 1.6
9330-100 100 2.5 1 2.5 3.5 2 32 3.2
9330-1k 1k 2.5 1 2.5 3.5 2 10 10
9330-10k 10k 2.5 1 2.5 3.5 2 3.2 32
9330-100k 100k 3 3 4 8 2 1 100
9330-1M 1M 8 7 10 15 5 0.32 320
9330-10M 10M 15 15 15 20 5 0.1 1000
9330-100M 100M 30 25 20 30 5 0.01 1000
Note 1: Nominal initial tolerance is the maximum variation of resistance mean value as adjusted initially at the point of sale.
Note 2: Values below 10M are calibrated in flowing oil at 25 0C, referred to the unit of resistance as maintained by the National
Research Council of Canada (NRCC) or the National Institute of Standards and Technology (NIST) and expressed as a total
uncertainty with a coverage factor of k=2. Values above 1M are calibrated in air at 23 0C. A traceable calibration report
stating the measured value and uncertainty is provided with each resistor.
Note 3: Special Values and calibration points available on request.
General Specifications Guildline is distributed by:
Dimensions: 9330-0.1 to 1M 9330-10M & 100M
Height: 81 mm (3.19 in) 115 mm (4.53 in)
Diameter: 90 mm (3.54 in) 53 mm (2.09 in)
Weight: 330 gms (.73 lbs) 350 gms (.77 lbs)
Environment:
Operating: 18 0 C to 28 0 C < 70% RH, non-condensing
28 0 C to 40 0 C < 50% RH, non-condensing
Storage: -20 0 C to 60 0 C 15 to 80% RH, non-condensing
9330 ORDERING INFORMATION Guildline Instruments Limited
9330-(ohmic value) 4-terminal Standard Resistor P.O. Box 99
TM9330 Technical Manual (included)
21 Gilroy Street
Certificate of Calibration (included)
Report of Calibration (included) Smiths Falls, Ontario Canada K7A 4S9
Phone: (613) 283-3000
FAX: (613) 283-6082
9330 V1.5 Copyright