27
- Release the
Test
button, release the
Reset
button, press and hold the
Reset
button, press
and hold the
Test
button, release the
Test
button, and then release the
Reset
button.
4.
If the correct sequence was entered, the display will read "Sure", if not, start again at step 2
above.
5.
While "Sure" is displayed on the screen you can:
A) Press
Reset
to exit out of the
Calibration Mode
and keep all of the currently
programmed calibration settings or
B) Press
Test
to enter the
Calibration Mode
and create new calibration settings. (Be
sure you want to enter the
Calibration Mode
as this will change the laboratory number so
it will show the calibration was not performed by Compliance West USA).
6.
Once the
Calibration Mode
has been entered, the
Reset
button toggles between the 5
calibration menus: Volt, V1, V2, curr, and bars. Make sure "V1" is displayed on the meter.
7.
Hook up a calibrated 1000:1 voltage probe and a calibrated DMM between the Device
receptacle and the Return jack on the front panel.
8.
Turn the Voltage Adjust on the rear panel to minimum (counterclockwise). Press the
Test
button and 2500 will be displayed on the front panel meter. Be careful as the HT-2800P
will be putting out voltage at this point.
9.
Turn the Voltage Adjust on the rear panel clockwise until the output on the DMM equals
2500 volts DC and press the Test button. The display will now display "V1" again.
10. Press the
Reset
button until "V2" is displayed on the front panel meter.
11. Turn the Voltage Adjust on the rear panel to minimum (counterclockwise). Press the
Test
button and 500 will be displayed on the front panel meter. Be careful as the HT-2800P will
be putting out voltage at this point.
12. Turn the Voltage Adjust on the rear panel clockwise until the output on the DMM equals
500 volts DC and press the Test button. The display will now display "V2" again. The
voltage is now be calibrated.
13. Turn Off the HT-2800P tester.
14. The voltage can be verified by turning on the HT-2800P, running a test, and using the
1000:1 voltage probe to check the meter at different voltages. If the voltages are not within
+/- 2% at each voltage, the voltage calibration must be performed again starting at step 1
above.
Current Calibration Adjustment
1.
You must be in
Calibration Mode
as in step 3 under the Voltage Calibration Adjustment
above.
2.
Turn the Voltage Adjust on the rear panel to minimum (counterclockwise).
3.
Connect the output of the HT-2800P through a 240K ohm, 100 watt high voltage resistor in
series with a calibrated DMM capable of measuring 5.0mA DC and returning to the Return
jack on the front panel of the HT-2800P.
4.
In the calibration mode, hit the Reset button until "curr" is displayed on the front panel.
5.
Once "curr" is displayed, press the Test button once and 5.0 will be displayed.
6.
Slowly increase the variac watching the current flowing on the DMM. Adjust the variac
until 5.0mA DC is displayed on the DMM and then press the Test button.
7.
The display will show "hold".
8.
Wait until the display returns to "curr". At this point the leakage current is calibrated.
Summary of Contents for HT-2800P
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