Batteries - Megger MPM2000 Guide De L'utilisateur

2.4 Received Power Testing
Use a power meter with a suitable dynamic range for
the receiver under test and an adapter to match the
connections on the
connections and connect the power meter to the fibre
supplying the receiver under test so that the power
meter is now where the receiver would normally go.
Turn on the optical transmitter of the fibre system and
allow the output to stabilise before measuring the
output at the receiver and comparing the result to the
input specifications of the receiver. This test is
normally repeated
interconnections disconnected
before each time and an average result taken to
ensure repeatability and stability.
receiver. Clean all
multiple times with
and reconnected

3.0 Batteries

The MPM2000/MPM2000H
configured for use with a 6LR61 (PP3) dry cell. A 12V
DC charger (See Optional Accessories) can be used
as a dual power source; this will not apply a charge to
the
the dry cells while fitted. Alternatively, within the
battery compartment there is a switch to change the
battery type from alkaline to NiCd/NiMh. If the DC
charger is now connected to the instrument with
rechargeable batteries in it (the switch is set to
NiCd/NiMh) then the batteries will start to recharge.
Allow 14 – 16 hours to fully charge a rechargeable
battery.
the
Do NOT attempt to recharge alkaline cells, over
heating would occur and the instrument may be
damaged.
When the switch is set to NiCd/NiMh, only fit
rechargeable cells.
7
are supplied and