27 lpal resistance calibration – part i of v, Lpal – AMETEK ReFlex User Manual
Page 347

Active Loads
ReFlex Power™
7-72
M380056-01 Rev J
7.6.27
LPAL
R
ESISTANCE
C
ALIBRATION
–
P
ART
I
OF
V
The following procedure calibrates the resistance 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.
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
10.0 Amps.
1. Set the DC input voltage to 10 Volts
2. Turn on the active load
INP<n>:STATE 1
3. Set the conductance count to 0xD5554.
CAL<n>:INP:COND:COUNTS 873812
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 0x1F383.
CAL<n>:INP:COND:COUNTS 0x1F383