KEPCO BIT 4882F - Manual (Page 23)

BIT 4882 030507
3-3
2. MEASURE the output voltage at the sense terminals at the BOP front panel using the DVM.
3. Locate VOLTAGE FULL SCALE control R21 (see Figures 2-1 and 3-1, refer to Table 3-1).
4. Adjust control R21 as needed until DVM reads FULL SCALE VOLTAGE, ±1 millivolt.
3.6 VOLTAGE READING ZERO CALIBRATION (R35)
1. Program the BOP power supply for ZERO VOLTAGE and MAXIMUM CURRENT LIMIT.
• If using SCPI send
VOLT 0;CURR MAX
• If using CIIL send
FNC DCS:CH1 VOLT 0 with CURL .5
TABLE 3-1. BOP POWER SUPPLY, INTERNAL CALIBRATION CONTROLS
REFERENCE
DESIGNATION
CONTROL
NAME
PURPOSE
ADJUSTMENT
PROCEDURE
(PAR.)
R19 * VOLTAGE READING ‘MEASURE’d voltage reading adjustment 3.7
R20 * CURRENT READING ‘MEASURE’d current reading adjustment 3.11
R21 * VOLTAGE FULL SCALE Full scale output voltage adjustment 3.5
R22 * CURRENT FULL SCALE Full scale output current adjustment 3.9
A1R31, A1R32 ( ± ) 10V CAL. Reference voltage calibration 3.2
R35 * VOLTAGE READBACK ZERO Zero output voltage readback adjustment 3.6
R36 * CURRENT READBACK ZERO Zero output current readback adjustment 3.10
R50 * AMMETER ZERO Sensing amplifier offset adjustment 3.3
A1R81 EO COMP AMP ZERO Voltage channel zero adjustment 3.4
A1R83 IO COMP AMP ZERO Current channel zero adjustment 3.8
* Located on BIT 4882 card