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User Manual
The shunt must be connected in series
mOhm current shunt of sufficient power
To calibrate all measurement functions, the desired value for the measurement value of current or
voltage must be entered for the corresponding calibration value. Make the indicated adjustments by
typing in the desired display value. This should be the value indicated by the external DVM. If a 10
milliOhm current shunt is used for
The Calibration Load Table shows required load bank settings for the current measurement calibration
procedure. The current should be calibrated in the lowest voltage range only. (Highest current range
If only 115VAC input is
get the same 6 A current per phase without drawing more than 500W per phase.
PARAMETER
Model --->
Max current, 115 V, Low
Vrange.
Max current, 80 V, Low
Vrange (115V AC input)
6.3.1 Measurement Cal - AC
AC Volt Full-scale:
AC Current Full-scale:
California Instruments
with the load. Connect the load to the output. Use a 10
rating in series with the load to measure the AC load current.
current, 100 mV represents 10 amps.
available, the current can be calibrated using a lower voltage setting (80V) to
2253i/iX 3 PHS
19
700 W
14
457 W
Table 6-1: Calibration Load Values
Select the phase to be programmed. Program the output voltage to
300 Vrms on the high voltage range and 400 Hz. Close the output
relay. Go to the MEASUREMENT CALIBRATION screen. Enter the
actual AC output voltage for the MVOLT FS parameter and press the
ENTER key. Note that this calibration process may take up to several
minutes to complete. During this time, the measurement display will
be shown. Once the cal cycle is completed, the LCD display will
revert back to the Calibration screen. To abort the calibration cycle,
the BACK key may be used.
Select the phase to be programmed. Calibrate the measurement
current under a constant current condition (OL MODE set to CC) or a
voltage fault may be generated. Apply a load to the output. Program
the output to 115 Vrms on the low voltage range and 400 Hz.
Observe the actual output current and enter this value for the
MCURR FS parameter. Press the ENTER key. Note that this
calibration process may take up to several minutes to complete.
During this time, the measurement display will be shown. Once the
cal cycle is completed, the LCD display will revert back to the
Calibration screen. To abort the calibration cycle, the BACK key may
be used.
2253i / 2253iX
2253i/iX-MODE 1 PHS
6
2100 W
5
1280 W
).
95
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