Current Output (Prog.) Calibration - Chroma 62020H-150S Operating & Programming Manual

11. Once the 7.5A point is calibrated, it is important to turn the loading of the Electronic
Load off and reconnect the DC Power Supply to a current shunt whose rating is closest to
but still covers 20A. For the Prodigit 7550, use 20A shunt directly.
12. Press " " to perform the 19.5A calibration. The cursor will stop at position [4] as
shown in Figure 3-115 for setting the loading current of the Electronic LOAD to 19.500A.
Enter the current read by the Current Shunt (DVM) and press "
wait for it to end. Use 7.5A and 19.5A for calibration; the system will calculate the
calibration factor for the high current range.
S E T L O A D I N G
A C T U A L O U T P U T
13. The current calibration is done once the above actions are completed. To save the
calibration data, press "
3-116. Press "
save it. If there is no need to save it, press "
EXIT
14. Press " " to return to the MAIN PAGE.
CAUTION
Improper shunt range selection may cause damage to the current shunt.
The calibration points may be different for other models (non
62150H-600S); perform the calibration following the instructions
displayed.
3.3.7.3

Current Output (PROG.) Calibration

3.3.7.3.1 Hardware Requirements
Table 3-8 lists the hardware requirements for current output calibration.
[ C U R R E N T
C U R R E N T
C U R R E N T = 0 . 0 0 0 0 _ A
Figure 3-115
SAVE
" to display the confirmation page as shown in Figure
1
" or turn the "Rotary" (
S A V E = N O
Figure 3-116
ENTER
M E A S C A L I B R A T I O N ]
= 1 9 . 5 0 0 A
) to set SAVE=YES and press "
EXIT
" to return to the Calibration screen.
[ S A V E A R G U M E N T ]
Manual Operation
" to confirm and
[ 4 ]
ENTER
" to
3-65