12 hpal voltage calibration – part v of v, Hpal – AMETEK ReFlex User Manual

Page 317

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Active Loads

ReFlex Power™

7-42

M380056-01 Rev J

7.6.12

HPAL

V

OLTAGE

C

ALIBRATION

P

ART

V

OF

V

This procedure calibrates the voltage for voltage gain 1 and current range low.
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 500V and maximum current 0.18
Amps.

1. Turn the active load on:

INP<n>:STATE 1

2. Set the conductance count to 0x15D:

CAL<n>:INP:COND:COUNTS 0x15D

3. Set the input DC voltage to 10 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 500 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?

7. If there is no error returned at the system error query command then save

the calibration result:

CAL<n>:UNLOCK “6867”

CAL<n>:STORE

CAL<n>:LOCK

8. Reset the unit:

*RST<n>

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