Potentiometers - Keithley DAS-800 series User Manual

Potentiometers

6-2
An STA-08 or STA-08PGA screw terminal accessory and C-1800
G
cable, or an STC-37 screw terminal connector.
Do not attempt to calibrate a DAS-800 Series board unless your
Note:
equipment is of the required accuracy.
DAS-800 Series boards contain potentiometers, which you must adjust
when calibrating the board. The DAS-800 board contains three
potentiometers: R1 (full scale), R2 (offset), and R3 (10 V reference). The
DAS-801 and DAS-802 boards contain four potentiometers: R1 (offset),
R2 (full scale), R5 (unipolar 0), and R6 (high gain 0). In addition, on
DAS-801 and DAS-802 boards, you must measure the voltage between
two test points (TP1 and TP2) with the voltmeter when calibrating the
board.
The locations of the potentiometers on the DAS-800 board are shown in
Figure 6-1; The locations of the potentiometers and test points on the
DAS-801 and DAS-802 boards are shown in Figure 6-2.
Calibration