Chroma 62020H-150S Operating & Programming Manual page 111

62000H
DC Power Supply
1.
2.
3.3.7.2.3 Calibration Procedure (Example: Model 62150H-600S)
1. In the CONFIG Setup page, press "
CALIBRATION option (see section 3.3.7 above).
2. In the CALIBRATION page, press "
CHOICE=2.
ENTER
3. Press " " to display the current calibration options shown in Figure 3-111.
R E M O V E A L L
4. Open the Breaker to ensure the DC Power Supply has no load and press "
confirm.
5. It is important to reconnect the DC Power Supply to a current shunt whose rating is
closest to but still covers 2A. For the Prodigit 7550, use the 2A shunt directly.
6. The calibration option will display as shown in Figure 3-112. Press "
current range will be calibrated first. The system outputs a fixed voltage and then sets the
loading current of the Electronic LOAD to 1.5A. The cursor stops at position [1] as shown
in Figure 3-112. Enter the current read by the Current Shunt (DVM) and press "
confirm and wait for it to end.
+
sv
+
v
−
v
−
sv
Figure 3-110
Calibrate the offset voltage of the ULTRASTAB SATURN before using
it for the current calibration. Press "
will reset and show "Math" for the current calibration.
Key in at least 5 digits for each calibration point to ensure the Power
Supply accuracy after calibration.
[ C U R R E N T
L O A D I N G
P R E S S [ E N T E R ]
Figure 3-111
Current Shunt
+ −
Breaker
Null
7
ENTER
" then press
2
" or turn the "Rotary" (
M E A S C A L I B R A T I O N ]
F R O M O U T P U T
W H E N R E A D Y
Manual Operation
+
DVM
−
+
Electronic Load
−
" and the DVM panel digits
to enter the
) knob to set
T E R M I N A L
ENTER
ENTER
". The low
" to
ENTER
" to
3-63