SERVICING - Section 8
8-6 MTS-1700 SERIES OPERATION AND REFERENCE MANUAL
MANTA TEST SYSTEMS
CU A002 15A
8.5.1 AC Voltage Measurement Calibration
1. Set dynamic measurement mode to RMS (see section 5.1.1).
2. Press [VOLTAGE], and select
Φ
-N A-N fault mode. Adjust the voltage down to 0, and then slowly up
to 75V (as read on an external reference meter).
Select OTHER SERV CALIBRATION MEASUREMENT VOLTAGE in the menu. Turn the
[MODIFY] knob to adjust the calibration factor until the reading is the same as read on a reference
meter.
Press [SELECT].
3. Exit the menu and select
Φ
-N A-N fault mode. Select prefault and adjust the voltage of A-N to 150V.
4. Select
Φ
-N B-N fault mode. Adjust the prefault voltage of B-N to 150V.
5. Select
Φ−Φ
Fault mode. Adjust the voltage to 250V.
Select OTHER SERV CALIBRATION MEASUREMENT VOLTAGE in the menu. Turn the
[MODIFY] knob to adjust the calibration factor until the reading is the same as read on a reference
meter (the output voltage doesn’t change when this is done).
6.
Exit the menu, and select 2
Φ
N A-B fault mode. Adjust the voltage to near the top of the next scale
(283V).
Select OTHER CALIBRATION MEASUREMENT VOLTAGE in the menu. Turn the [MODIFY]
knob to adjust the calibration factor until the reading is the same as read on a reference meter (the output
voltage doesn’t change when this is done).
7.
Set the dynamic measurement mode to PEAK (see section 5.1.1), and the operation mode to
DYNAMIC. Press [FAULT].
Repeat steps 2 to 4 to adjust the peak measurement calibration factors.
IMPORTANT: This must be done with the dynamic measurement mode set to PEAK, and in the
FAULT state (FAULT button flashing).
8. Select OTHER SERV CALIBRATION SAVE to save the calibration factors in non-volatile memory so
that these new calibration factors will be remembered when the MTS-1710 is powered up next time.
Note: If you’re performing all calibrations, only one SAVE operation at the very end is required.
8.5.2 AC Current (I1) Measurement Calibration
1. Set dynamic measurement mode to RMS (see section 5.1.1). Select I1-LOW current mode, and connect
an external reference ammeter to the I1 OUTPUT terminals.
2.
Press [CURRENT], adjust the current down to 0, and then slowly up to 5.0A (as read on an external
reference meter).