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28 lpal resistance calibration – part ii of v, Lpal – AMETEK ReFlex User Manual

Page 349

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Active Loads

ReFlex Power™

7-74

M380056-01 Rev J

7.6.28

LPAL

R

ESISTANCE

C

ALIBRATION

P

ART

II

OF

V

This procedure calibrates the resistance for voltage gain 4 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. Connect the
sense positive-to-positive lead and sense negative-to-negative lead. Also
connect the shunt and the DC current meter between the active load and
DC power supply

This procedure requires maximum voltage 10.0 V and maximum current 1.0
Amps.

1. Set the DC input voltage to 10 Volts

2. Turn the active load

INP:STATE 1

3. Set the conductance count to 0xFFFF.

CAL:INP:COND:COUNTS 0xFFFF

4. After DC voltage stabilizes. Enter the voltage using SCPI

commands

CAL:INP:VOLT 1

5. After DC current stabilizes. Enter the current using SCPI commands

CAL:INP:CURR 1

6. Set the conductance count to 0x7878.

CAL:INP:COND:COUNTS 0x7878

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