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2. For FULL SCALE calibration adjust the output to obtain the closest value above
3. Set the unit for local sensing with GND Network in (see Figure 4-1) and discon-
1. Initiate calibration by sending the SCPI command SYSTem:PASSword:CENable DEFAULT
and then send CAL:STATe 1. The password DEFAULT has been set at the factory. If the
password has been changed from DEFAULT, substitute the correct password for the unit in
the SYST:PASS:CEN command. If the password has been lost, consult factory.
2. Set the BOP to zero volts output by sending CAL:VOLT ZERO. Connect a Digital Voltmeter
(DVM) to the BOP OUT S and COM S terminals to measure the output voltage. Send
CAL:DATA commands as needed (see PAR. 4.3c) to adjust the BOP output until the DVM
reads as close to zero as possible within tolerance specified in Table 4-3 for VOLTAGE
ZERO.
3. Set the BOP to maximum positive output voltage by sending CAL:VOLT MAX. Measure the
voltage output using the DVM. To adjust, send CAL:DATA commands as needed (see PAR.
4.3b) until the DVM reading is as close as possible above the nominal full scale value within
the tolerance specified in Table 4-3 for +FULL SCALE VOLTAGE.
4. Set the BOP to maximum negative output voltage by sending CAL:VOLT MIN. To adjust,
send the CAL:DATA command as needed (see PAR. 4.3b) until the reading is as close as
possible above (absolute value) the nominal full scale value within the limits specified in
Table 4-3 for –FULL SCALE VOLTAGE.
5. Send CAL:VPR MAX to adjust the maximum positive voltage protection limit of the power
supply. Send the CAL:DATA commands as needed (see PAR. 4.3c) until the reading is as
close as possible above the nominal full scale value within the limits specified in Table 4-3 for
+FULL SCALE VPR LIMIT.
6. Send CAL:VPR MIN to adjust the maximum negative protection limit of the power supply.
Send the CAL:DATA commands as needed (see PAR. 4.3c) until the reading is as close as
possible above (absolute value) the nominal full scale value within the limits specified in
Table 4-3 for –FULL SCALE VPR LIMIT.
4-6
the nominal full scale value.
nect load from BOP output to prepare the unit for voltage calibration.
FIGURE 4-1.
CALIBRATION SETUP
BOP-1K 080709
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