Megger SG32-1500M, User Manual

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SG32-UG-EN-V01 Dec 2016
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Arc Reflection / Arc Reflection Multi-Shot - High Voltage Pre-location
A Differential Arc Reflection (DART)
1. Set the rotary High Voltage Control Knob (item 12) to the “Zero Start”
position.
NOTE: If the rotary High Voltage Control Knob (item 12) is not set to the
“Zero Start” position prior to pushing the HV ON pushbutton (item
10), a “Zero Start” interlock error will occur causing the “ZERO
START” interlock error LED (item 2) to be illuminated momentarily
and the selected test mode will be cancelled.
NOTE: The position of the Voltage Range and Test Mode switches cannot be moved
while a particular test mode is activated (mechanical interlock).
2. Set the Voltage Range switch (item 14) to the desired “surge” range either 16
or 32kV.
3. Set the rotary SELECT Mode knob (item 16) to the TDR & ARC REFL test
group. Both pushbuttons’ Blue LEDs will illuminate, indicating that either of
these test modes are available.
4. Push the ARC REFL pushbutton (item 20). The selection is confirmed by
the pushbutton’s Blue LED remaining illuminated, and the TDR
pushbutton’s Blue LED extinguishing. The HV ON Pushbutton (item 10)
Green LED will illuminate.
5. Push the HV ON pushbutton (item 10) and the selected test voltage will be
available to the cable under test. The HV ON Green LED (item 10) will
extinguish, the HV OFF pushbutton’s (item 9) Red LED will illuminate, and
the SINGLE SHOT RELEASE pushbutton’s (item 15) Yellow LED will
illuminate.
6. On the MTDR select the Arc Reflection method, and a standard Pulse Echo measurement
is made, with the trace being automatically stored in the internal memory. This is your
reference trace.
7. The MTDR is armed (made ready) by selecting “TRIGGER ON” from the menu
buttons. The word “armed” is displayed on the MTDR.
8. For FULL instructions on the use of the TDR refer to
Addendum 3 -
MTDR100 User Guide.
9. The required “Impulse or Surge” voltage is set by rotating the (High) Voltage
Control knob (item 12) to the required voltage, which is normally slightly