AMETEK ReFlex - Manual (Page 320)

ReFlex Power™ Active Loads
M380056-01 Rev J 7-45
7.6.14
HPAL 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 20.0 V and maximum current
3.0Amps.
1. Set the DC input voltage to 20 Volts
2. Turn the active load on:
INP<n>:STATE 1
3. Set the conductance count to 0x1FFFF.
CAL<n>:INP:COND:COUNTS 0x1FFFF
4. After DC voltage stabilizes. Enter the voltage using SCPI
commands
CAL<n>:INP:VOLT 1 <value-1>
5. After DC current stabilizes. Enter the current using SCPI commands
CAL<n>:INP:CURR 1 <value-1>
6. Set the conductance count to 0xF0F0.
CAL<n>:INP:COND:COUNTS 0x3CF3C