MI 2892 Power Master
Recording Practice and Instrument Connection
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Note: If during record session instrument batteries are drained, due to long interruption for example,
instrument will shut down. After electricity comes back, instrument will automatically start new
recording session.
Step 6: Measurement conclusion
Before leaving measurement site we need to:
Preliminary evaluate recorded data using TREND screens.
Stop recorder.
Assure that we record and measure everything we needed.
Step 7: Report generation (PowerView v3.0)
Download records using PC software PowerView v3.0 perform analysis and create reports. See
PowerView v3.0 manual for details.
4.2
Connection setup
4.2.1
Connection to the LV Power Systems
This instrument can be connected to the 3-phase and single phase network.
The actual connection scheme has to be defined in CONNECTION SETUP menu (see Figure below).
Figure 4.2: Connection setup menu
When connecting the instrument it is essential that both current and voltage connections are correct. In
particular the following rules have to be observed:
Clamp-on current clamp-on transformers
The arrow marked on the clamp-on current transformer should point in the direction of current
flow, from supply to load.
If the clamp-on current transformer is connected in reverse the measured power in that phase
would normally appear negative.
Phase relationships
The clamp-on current transformer connected to current input connector I
1
has to measure the
current in the phase line to which the voltage probe from L
1
is connected.
