AMETEK ReFlex - Manual (Page 337)

Active Loads ReFlex Power™
7-62 M380056-01 Rev J
7.6.22 LPAL V
OLTAGE
C
ALIBRATION
– PART I
OF
V
The following procedure calibrates the voltage for voltage gain 8 and
current range high. Make sure that the shunt and the DC voltmeter are
connected between the positive and negative lead of the active load. Also
connect the sense positive-to-positive lead and sense negative-to-negative
lead.
This procedure requires maximum voltage 55 V and maximum current
6.0Amps.
1. Turn the active load on
INP<n>:STATE 1
2. Set the conductance count to 0x19999
CAL<n>:INP:COND:COUNTS 0x19999
3. Set the input DC voltage to 13 Volts. After the input DC voltage
stabilizes enter the first exact voltage using following command
CAL<n>:INP:VOLT 1 <value-1>
4. Set the input DC voltage to 54 Volts. After the input DC voltage
stabilizes enter the second exact voltage using following command
CAL<n>:INP:VOLT 2 <value-2>
5. Send the calibration command to calculate the gain and offset:
CAL<n>:MEAS:OFFSET:CALC
6. Send the system error query command to make sure calibration was
successful.
SYST:ERR?