KEPCO KLP Series User Manual, Rev 4 - Manual (Page 84)

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KLP 091313
4. Tap the DC OUTPUT switch to accept the value. The status display reads CMAX. Rotate the
CURRENT control to increase or decrease the DVM reading until the DVM reading corre-
sponds as close as possible to (but not less than) the maximum rated current (see Table 1-2)
Calculate current as follows:
I (Amperes) = DVM reading (Volts) / Shunt Resistance (Ohms).
5. Tap the DC OUTPUT switch to accept the value; the status display now reads OUTC. At the
ANALOG I/O PORT J2, connect the DVM to CURR_RBACK and GND as shown in Figure 4-
1. Rotate the CURRENT control to increase or decrease the output voltage until the DVM
reads as close as possible to 10V.
6. Tap the DC OUTPUT switch to accept the value. The status display reads EXT?. Tap the DC
OUTPUT switch to proceed to External Calibration (see PAR. 4.3.2), or rotate either VOLT-
AGE or CURRENT control to advance to next choice
4.3.3 EXTERNAL CALIBRATION (LOCAL)
During external calibration the external analog reference voltages used to establish full scale
output current and voltage are calibrated.
1. The status display reads INPV. With the reference voltage adjusted to 10.000V, tap the DC
OUTPUT switch to accept the value.
2. The status display reads INPC. With the reference voltage adjusted to 10.000V, tap the DC
OUTPUT switch to accept the value.
3. The status display reads EXIT. Proceed to PAR. 4.3.4 to exit calibration.
4.3.4 CALIBRATION EXIT (LOCAL)
NOTE: Using a thin tool (e.g., a paper clip), tap the FUNCTION switch to exit calibration WITH-
OUT saving any calibration data.
1. When the status display reads EXIT, tap the DC OUTPUT switch to save the calibration.
2. The status display reads DATE. The DC VOLTS display represents MMDD (month, day) and
the DC AMPS display represents YYYY (year). The factory calibration date is displayed with
the first digit blinking as a starting point to enter the current date. Rotate either the VOLTAGE
or CURRENT controls to change the digit, then tap either control to move to the next digit.
NOTE: For purposes of traceability the user is strongly urged to enter the calibration date upon
completion of calibration. If a date is not entered, no date is saved.
3. Tap DC OUTPUT switch to accept date. If any calibration (voltage, current or external) was
completed, the unit will save the new calibration. The status display reads "DONE" while cal-
ibration is being saved.
4. Once saved the unit enters Virtual Model mode. Follow the procedure in PAR 3.2.9 to set the
virtual model.
NOTE: The virtual model is always reset following calibration. If voltage calibration is com-
pleted (regardless of whether or not current calibration is completed), the virtual model
voltage is set for maximum rated voltage, and current is set to the value corresponding
to 1200 Watts. If ONLY current calibration is completed, the virtual model current will
be set for maximum rated current and voltage is set to the value corresponding to 1200
Watts.