Calibration
Routine calibration is carried out without opening the instrument.
Allow 10 minute warm-up before commencing calibration.
Equipment Required
A 5.5 digit multimeter with better than 0.02% accuracy on dc volts and better than 0.12%
accuracy on dc current (to 5A); alternatively use a precision shunt for current measurement.
Calibration
Assign CONTROL to Output 1. To enter calibration press SHIFT, #, 99. If the instrument is a long
way out of calibration, the default calibration values should be loaded first by pressing SHIFT, #,
91. Pressing ESCAPE at anytime will abort the calibration procedure and revert to the stored
calibration values.
Having entered calibration mode, follow the table below. To increment to the next step press OK.
The calibration
must
be done in sequence. At the end of calibration press OK to store the
calibration. The instrument automatically sets the range and settings at each step.
Use the spin-wheel to adjust calibration; holding down the JOG SET OFF key will give x100
increments to speed up calibration. Pressing SHIFT will show the calibration value.
Repeat for Output 2.
Step/Range Settings
Adjust
for:-
Load
Detail
1, 35V 3A
0.01V 3A
10mV ± 0.5mV
DVM
o/p 0V
2, 35V 3A
0.01V 3A
0.010V on display
DVM
V readback zero
3, 35V 3A
35V 3A
35V ± 0.5mV
DVM
o/p V span
4, 35V 3A
35V 3A
35.000 on display
DVM
V readback span
5, 35V 3A
0.01V 3A
10mV ± 0.5mV
DVM
o/p 0V
6, 35V 3A
35V 3A
35V ± 0.5mV
DVM
o/p V span
7, 35V 3A
2V 0.001A
1mA ± 0.5mA
milli-ammeter
o/p A offset
8, 35V 3A
2V 0.001A
0.001 on display
milli-ammeter
A readback zero
9, 35V 500mA
2V 0.1mA
0.1mA ± 0.05mA
milli-ammeter
o/p mA offset
10, 35V 500mA
2V 0.1mA
flashing 0.0/0.1 on display
milli-ammeter
mA readback zero
change
load
11, 15V 5A
2V 4A
4A ± 0.5mA
ammeter
o/p A span
12, 15V 5A
2V 4A
4.000 on display
ammeter
A readback span
13, 15V 5A
2V 4.1A
4.100 on display
ammeter
A readback 13bit
14, 35V 500mA
2V 400mA
400mA ± 0.05mA
ammeter
o/p mA span
15, 35V 500mA
2V 400mA
400.0 on display
ammeter
mA readback span
16, 35V 500mA
2V 410mA
410.0 on display
ammeter
mA readback 13bit