Megger PFL22M1500 Series, User Manual

Page: 22 / 78

M
AVTMPFL22M Rev 1 April 2011
12
External Connections
23.
External Battery connection
Positive (+):
The positive connection point when using the PFL22M
from an external 12V supply.
24.
External Battery connection
Negative (-):
The negative connection point when using the PFL22M
from an external 12V supply.
Note: When external battery is used the only
earth/ground is via the external Earth/Grounding
connection (item 27)
25. Earth/Ground connection:
The instrument Earthing/Grounding point. For
operator safety it is mandatory that the PFL22M is
efficiently earthed/grounded. Failure to do so could
result in serious injury or in the extreme circumstances
death.
26. External HV interlock:
To provide additional operator safety an external HV
interlock (optional accessory) can be fitted.
27. Warning Beacon connection:
Through this connection an external warning beacon
(optional accessory) can be fitted. Connection rated at
3A, 220V dc and 250V ac, exceeding this limit will
damage the unit