Chroma 62150H-600S - Current Output (PROG.) Calibration

Manual Operation
3-65
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 “ ” to confirm and
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.
Figure 3-115
13. The current calibration is done once the above actions are completed. To save the
calibration data, press “ ” to display the confirmation page as shown in Figure
3-116. Press “ ” or turn the “Rotary” (
) to set SAVE=YES and press “ ” to
save it. If there is no need to save it, press “
EXIT
” to return to the Calibration screen.
[ S A V E A R G U M E N T
]
S A V E = N O
Figure 3-116
14. Press “
EXIT
” to return to the MAIN PAGE.
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.
ENTER
[ C U R R E N T M E A S C A L I B R A T I O N ]
S E T L O A D I N G C U R R E N T = 1 9 .
5 0 0
A
A C T U A L
O U T P U T C U R R E N T
= 0
. 0 0 0 0
_
A
[ 4 ]
SAVE
1
ENTER
CAUTION