6RL SERIES OPERATION MANUAL
SECTION 9: CALIBRATION
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2018 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
6RL Series Regenerative DC Load Operation Manual
Page 199 of 204
Connect suitable measurement devices to the DC input and to the shunt, depending on
whether the voltage or the current is going to be calibrated first
9.3
Calibration Procedure
After the preparation, the unit is ready to be calibrated. From now on, a certain sequence of
parameter calibration is important. Generally, you do not need to calibrate all three parameters,
but it is recommended to do so.
Note: It is recommended to calibrate the current before any voltage calibration.
Note: When calibrating the output voltage, the remote sense input (“Sense”) on the rear of
the unit has to be disconnected.
Note: During the calibration, the user is asked to enter measured values. If these values differ
too much from the value measured by the device or wrong values are entered, the
calibration fails and has to be repeated.
The calibration procedure, as explained below, is an example using model 6RL03-170-80-2.
Other models are calibrated the same way, with values according to the particular 6RL model
and the required DC power supply.
9.3.1
Calibrating Set Values
How to calibrate the input voltage
1.
Adjust the connected voltage source to approx. 102% of the maximum voltage specified
for the DC load. For the example with an 80 V 6LR, this would be 81.6 V for the source.
Set the current limitation of the voltage source to 5% of the nominal current specified for
DC load. For this example it is 8.5 A. Check again, that for voltage calibration, the sensing
connector on the rear of the device is not connected.
2.
In the display, tap MENU, then “General Settings“, then go to Page 7 and tap START.
3.
In the next screen select: Voltage calibration, then Calibrate input val. and NEXT. The
load will switch the DC Input on and show the measured input voltage value as U-mon.
4.
The next screen requests you to enter the measured output voltage from the multi-
meter at Measured value=. Enter it using the key pad, that appears when tapping the
value. Assure yourself the value is correct and submit with ENTER.
5.
Repeat point 4. for the next three steps (total of four steps).
How to calibrate the input current
1.
Adjust the current source to approx. 102% nominal current of the DC load, for the
sample model with 170 A this would be 173.4 A, rounded to 174 A. Make sure the
source can provide more current than the DC load can draw, else the source’s voltage
will collapse. Set the output voltage of the current source to 10% of the nominal voltage
specified for the 6RL mode - in the example 8 V - and switch the DC output of the source
on.
2.
In the display, tap MENU, then “General Settings“, then go to Page 7 and then tap
START.
3.
In the next screen select: Current calibration, then Calibrate input val. and NEXT. The
device will switch on the DC Input and show the measured input current as I-mon.
Summary of Contents for 6RL Series
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