Keithley 500 915 01C free download

File name 500_915_01C.pdf

AIM5 Isolated Low-Level Analog Input Module The AIM5 Isolated Low-level Analog Input Module is designed to accept inputs from +5mV to *lOOmV, including signals from thermocouples. Isolated input permits the connection of signals with high common mode voltages--up to 500V DC or peak AC-- and provides normal mode input protection up to l3OV. Channel-to-chaimel isolation is 500V DC or peak AC. The input bandwidth is below 2Hz, reducing sensitivity to 50/60 cycle AC noise. There are four input channels on the AIM5 module, each with individually adjustable gain amplification. The module is shipped from the factory with a preset gain of xl00 volts/volt, appropriate for thermocouple types B,E,J,K,R,S, and T. This gain can be reset for each channel by changing the value of the gain-setting resistor. The AIM5 is equipped with cold junction reference circuitry, which allows accurate measurement of the junction temperature, eliminating the need for ice-bath reference junctions. The AIM5 may be placed in slots 3-10 of the baseboard (slots 2-10 if AMMl is used). To install the module, remove the top cover of the mainframe and insert the module in the desired slot with the component side facing the power supply. Place the AIM5 as far away from the power supply as possible to minimize noise or thermal effects. CAUTION: Always turn off the system power before installing or removing modules. To minimize the possibility of EM1 radiation, never operate the system with the top cover removed. Short the input terminals of unused channels together. User-Configured Components Overall gain is factory set to x100. Gain amplification for each channel can be modified by changing resistors in the locations provided on the AIM5 module card. Installing op- tional resistors provides current to voltage conversion, allowing connection of current loop inputs. All inputs are connected to a bank of screw terminals, with positive and negative (high and low) terminals for each of the four input channels (see Table 1 and Figure 1). Table 1. Summary of User-Configured Components Name Designation Function Switch 101 SlOl xl/xl00 gain (channel 0) Resistors R102, R106, RllO, R114 Per channel gain resistors Resistors User-installed Optional resistors for current to voltage conversion Screw Terminals J163 Input terminals for channels O-3 Document Number: 500-925-01 Rev. C AIM5-1 Fi