EPS Stromversorgung PSI 9040-120 2U, Руководство по эксплуатации

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PSI 9000 2U Series
4.3.3.1 Set values
► How to calibrate the voltage
1.
Connect a multimeter to the DC output. Connect a load and set its
current to approx. 5% of the nominal current of the power supply, in
this example ~6 A, and 0 V (if the load is electronic).
2.
In the display, tap MENU, then „ General Settings “, then go to Page
7 and then tap START .
3.
IIn the next screen select: Voltage calibration , then Calibrate output
val. and NEXT . The power supply will switch the DC output on, set a
certain output voltage and show the measured value as U-mon .
4.
The next screen requests you to enter the measured output voltage from the multimeter at
Measured
value=
. Enter it using the keypad, that appears when tapping the value. Assure yourself the value is correct
and submit with
ENTER
.
5.
Repeat step 4. for the next three steps (total of four steps).
► How to calibrate the current
1.
Set the load to approx. 102% nominal current of the PSI device, for the sample model with 120 A this would
be 122.4 A, rounded to 123 A.
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 output val. and NEXT . The device will switch
on the DC output, set a certain current limit while loaded by the load/sink and show the measured output
current as I-mon .
4.
The next screen requests you to enter the output current Measured value= measured with the shunt. Enter
it using the keypad, assure yourself the value is correct and submit with ENTER .
5.
Repeat step 4. for the next three steps (total of four steps).
In case you are generally using the remote sensing feature, it is recommended to also calibrate this feature 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 PSI.
► How to calibrate the output voltage for remote sensing
1.
Connect a load and set its current to approx. 5% of the nominal current of the power supply, in this example
~6 A, and 0 V (if the load is electronic). Connect a multimeter to the DC terminal of the load and connect the
remote sensing input (Sense) to the DC terminal of the load with correct polarity.
2.
In the display of the PSI tap MENU, then „ General Settings “, then go to Page 7 and then tap START .
3.
IIn the next screen select: Sense volt. cali. , then Calibrate output val. and NEXT.
4.
The next screen requests you to enter the measured sensing voltage Measured value= from the multimeter.
Enter it using the keypad, that appears when tapping the value. Assure yourself the value is correct and
submit with ENTER .
5.
Repeat step 4. for the next three steps (total of four steps).
4.3.3.2 Actual values
Actual values of output voltage (with and without remote sensing) and output current are calibrated almost the
same way as the set values, but here you don’t need to enter anything, just confirm the displayed values. Please
proceed the above steps and instead of “ Calibrate outp. value ” select “ Calibrate actual val. ” in the submenus.
After the device shows measured values on display, wait at least 2s for measured value to settle and then tap
NEXT until you are through all steps.