TB 9-6130-285-24
Model 6654A Calibration - Continued
Action
Display Response
(Meter mode)
d. Enter Current Calibration Values
(1) Connect equipment as shown in figure 7.
IRDG1
WRONG MODE
(2) Select the first calibration point by pressing
.
(3) If the power supply is not in CC mode, an error
occurs 4.
(Meter mode)
(4) Wait for Multimeter reading to stabilize, then read
Multimeter for the first current value
(5) Use Entry keypad to enter the first current value.
(Meter mode)
(6) Select second calibration point by pressing
IRDG2
again.
(7) Wait for Multimeter reading to stabilize. Then read
Multimeter for the second current value.
(Meter mode)
(8) Use Entry keypad to enter the second current value.
NOTE
If the entered value is not within
(Meter mode)
acceptable range, an error occurs.
CAL ERROR
(9) The power supply is now holding the new current
CAL COMPLETE
calibration constant in RAM.
1
If CAL DENIED is displayed, then an internal jumper has been set to prevent the calibration from being
changed. (See the Service Manual.)
2 If the active password is lost, the calibration function can be recovered by moving an internal jumper that
defeats password protection. However, this also will change all calibration constants to their factory-default
values. (For more information, see the Service Manual.)
3 Program the output current to 10% of its rated output.*
4 Program the output voltage to l0% of its rated output.*
* See applicable Output Ratings in table 1.
A-4