Page 70
Intepro Systems
www.inteproate.com
PS 9000 3U Series
4.3.3.1
Calibrating the set values
►
How to calibrate the DC output voltage
1.
Connect a multimeter to the DC output. Connect a load
and set it to approx. 5% of the nominal current of the power
supply as load current, in this example ≈8 A.
2.
In the display enter the setup menu with
, then push
button
. In the sub menu navigate to “
Calibrate Device
”. Push
again.
3.
In the next screen select “
Voltage calibration
” +
, then “
Calibrate output value
” + 2x
.
The
power supply will switch the DC output on, set a certain output voltage and start to measure it (
U-mon
).
4.
The next screen requests you to enter the measured output voltage from the multimeter at
Measured
data=
. Enter it using the right-hand rotary knob, just like would adjust a set value. Assure yourself the value
is correct and submit with
.
5.
Repeat point 4. for the next three steps (total of four steps).
►
How to calibrate the DC output current
1.
Set the load to >100% nominal current of the PS device, for the sample model with 170 A let’s say 173 A.
2.
In the display enter the setup menu with
, then push button
. In the sub menu navigate to “
Cal-
ibrate Device
”. Push
again.
3.
In the next screen select “
Current calibration
”
+
,
then “
Calibrate output value
” + 2x
.
The
device will switch on the DC output, set a certain current limit while loaded by the load or sink and start to
measure the output current (
I-mon
).
4.
The next screen requests you to enter the output current
Measured data=
measured with the shunt. Enter
it using the right-hand rotary knob, just like would adjust a set value. Assure yourself the value is correct
and submit with
.
5.
Repeat point 4. for the next three steps (total of four steps).
4.3.3.2
Calibrating the remote sensing
In case you are generally using the remote sensing feature, no matter if in sink or source mode, it is recommended
to also calibrate it for best results. The procedure is identical to the calibration of voltage, except for it requires
to have the sensing connector (Sense) on the rear to be plugged and connected with correct polarity to the DC
output of the PS.
►
How to calibrate the DC output voltage for remote sensing
1.
Connect a load and set it to approx. 3% of the nominal current of the power supply as load current, in this
example ≈5 A. Connect the remote sensing input (Sense) to the load with correct polarity.
2.
Connect an external multimeter to the DC terminal of the load.
3.
In the display enter the setup menu with
, then push button
. In the sub menu navigate to “
Cal-
ibrate Device
”. Push
again.
4.
In the next screen select “
Sense volt. calibration
”
+
,
then “
Calibrate output value
” + 2x
.
5.
The next screen requests you to enter the measured sensing voltage at
Measured data=
. Enter it using the
right-hand rotary knob, just like would adjust a set value. Assure yourself the value is correct and submit
with
.
6.
Repeat point 5. for the next three steps (total of four steps).