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Chapter 3 Calibration Procedures
Constant Current (CC) Verifications
55
3
5
Readback the output current from the selected output over the remote
interface by sending the command:
MEAS:CURR? {P6V|P25V|N25V}
6
Record the value displayed on the controller. This value should be within the
limits specified below for each output tested.
7
Program the selected output current to the full scale value (see Table 3-2) by
sending the commands:
CURR 5.0
for the +6V supply or
CURR 1.0
for the ±25V supply
8
Divide the voltage drop (DVM reading) across the current monitoring resistor
(R
M
) by its resistance to convert to amps and record this value (I
O
). This value
should be within the limits specified below for each output tested.
9
Readback the output current from the selected output over the remote
interface by sending the command:
MEAS:CURR? {P6V|P25V|N25V}
10
Record the value displayed on the controller. This value should be within the
limits specified below for each output tested.
11
Repeat steps (1) through (10) for the remaining outputs.
Output Readback Accuracy
+6V I
O
± 10 mA
+25V I
O
± 4 mA
-25V I
O
± 4 mA
Output Programming Accuracy
+6V 5 A ± 20 mA
+25V 1 A
± 5.5 mA
-25V 1 A
± 5.5 mA
Output Readback Accuracy
+6V I
O
± 20 mA
+25V I
O
± 5.5 mA
-25V I
O
± 5.5 mA