Chroma A620028 - Page 116

Programmable DC Power Supply (with Solar Array Simulation) 62000H Series
Operating & Programming Manual
3-68
Figure 3-121
8. Now start the high current range calibration. Select a current shunt whose rating is
closest to but still covers 20A. For the Prodigit 7550, use the 20A shunt directly.
9. Press “
” to do the 7.5A calibration. The system will set the output current to
7.500A automatically and the cursor will stop at position [3] as shown in Figure 3-122.
Input the current read by the Current Shunt (DVM) and press “ ” to confirm.
Figure 3-122
10. Turn OFF the output of the DC Power Supply. Select a current shunt whose rating is
closest to but still covers 20A. For the Prodigit 7550, use the 20A shunt directly.
11. Press “
” to do the 19.5A calibration. The system will set the output current to
19.500A automatically and the cursor will stop at position [4] as shown in Figure 3-123.
Input the current read by the Current Shunt (DVM) and press “ ” to confirm.
Figure 3-123
12. The current calibration is done once the above actions are completed and the DC Power
Supply output is turned OFF. To save the calibration data, pressing “ ” will display a
confirmation page as shown in Figure 3-124. Press “ ” or turn the “Rotary” (
) to
[ C U R R E N T S E T T I N G C A L I B R A T I O N
]
S E T T I N G
O U T P U T C U R R E N T = 4 . 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 _ A
[ 2
]
ENTER
[
C U R R E N T S E T T I N G C A L I B R A T I O N ]
S E T T I N G O U T P U T C U R R E N T = 7 . 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 _ A
[
3 ]
ENTER
[ C U R R E N T S E T T I N G C A L I B R A T I O N ]
S E T T I N G O U T P U T 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 _ A
[ 4 ]
SAVE
1