Megger PFL22M1500 Series, User Manual

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M
AVTMPFL22M Rev 1 April 2011
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Pulse Echo (Time Domain Reflectometer, TDR) : Low Voltage Prelocation
The PFL22M1500 has an integrated T.D.R.
1. Set the rotary Voltage Control Knob (item 21) to the “Zero Start” position
(item 9).
NOTE:
Range and function switch cannot be moved if a mode is active.
2. Ensure that the Voltage Range switch (item 20) is fully depressed. As we are
using TDR (low voltage prelocation) no HV voltage is required. At this stage
the Status Bar (item 1) will glow “Red”
3. Set the Mode (Filter) selector switch (item 20) to the TDR and Arc
Reflection group. Both lamps will illuminate, advising that either of these
modes are available.
4. Depress the pushbutton of the desired mode, in this case TDR. Selection is
confirmed by the pushbutton remaining illuminated and the other
pushbutton extinguishing.
5. For instructions on the use of the TDR refer to Addendum ***
MTDR100 User Guide
6. To deselect, and terminate operation depress the TDR pushbutton (item 16),
which also engages the internal earthing/grounding.
7. The Status Bar (item 1) will glow “Green”.
Arc Reflection : High Voltage Prelocation
Also Arc Reflection Plus (ARP) and Differential Arc Reflection (DART)
1. Set the rotary Voltage Control Knob (item 21) to the “Zero Start” position
(item 9).
NOTE:: Range and function switch cannot be moved if a mode is active.
2. Set the Voltage Range switch (item 20) to the desired “surge” range either 8
or 16kV. At this stage the Status Bar (item 1) will glow “Red”.
3. Set the Mode (Filter) selector switch (item 19) to the TDR and Arc
Reflection group. Both lamps will illuminate, advising that either of these
modes are available.