BOP-1K 111315 4-5b. MAX and MIN Calibrations. The primary means of adjustment is the CAL:DATA command to either increase (CAL:DATA 1) or decrease (CAL:DATA -1) the output value.Adjustment can be done in larger increments by increasing the numeric value, e.g.,CAL:DATA +10 or CAL:DATA -10. Adjust the output to obtain the closest value above the fullscale value.c. VPR and CPR Calibrations. The only means of adjustment is the CAL:DATA command which provides a total of 4095 increments of adjustment from zero to maximum.Adjust the output to obtain the closest value above the full scale value.4.3.1 CALIBRATION PROCEDURE USING SCPI COMMANDSThe following procedure provides a complete calibration of the unit. Steps 17 and 18 calibratethe control signal used when the unit is a slave in series configurations. Steps 28 and 29 cali-brate the control signal used when the unit is a master in parallel configurations. Steps 31 and32 calibrate the control signal used when the unit is a slave in parallel configurations. There isno need for a special calibration step when the unit is used as a master in series configurationssince the BOP output voltage (which is calibrated by this procedure) is used to control the nextunit in series.NOTES: 1. For ZERO calibration, adjust output to obtain value closest to zero.2. For FULL SCALE calibration adjust the output to obtain the closest value abovethe nominal full scale value.3. Set the unit for local sensing with GND Network in (see Figure 4-1) and discon-nect load from BOP output to prepare the unit for voltage calibration.FIGURE 4-1. CALIBRATION SETUP FOR VOLTAGE MODE1. Initiate calibration by sending the SCPI command SYSTem:PASSword:CENable DEFAULTand then send CAL:STATe 1. The password DEFAULT has been set at the factory. If thepassword has been changed from DEFAULT, substitute the correct password for the unit inthe SYST:PASS:CEN command. If the password has been lost, consult factory.
