MI 2892 Power Master
Recording Practice and Instrument Connection
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2.
Connect temperature probe to Power Master neutral current input terminal
3.
Enter: Measurement setup
Connection setup
Phase/Neutral curr. clamps
4.
Select: Smart clamps
5.
Temperature probe should be now automatically recognized by the instrument
Instrument will remember settings for the next time. Therefore, user only needs to plug temperature
probe to the instrument.
4.2.6
GPS time synchronization device connection
Power Master has the ability to synchronize its system time clock with Coordinated Universal Time (UTC
time) provided by externally connected GPS module (optional accessory - A 1355). In order to be able to
use this particular functionality, GPS unit should be attached to the instrument and placed outside. Once
this is done, GPS module will try to establish connection and get satellite time clock. Power Master
distinguishes two different states regarding GPS module functionality.
Table 4.4: GPS functionality
GPS module detected, position not valid or no satellite GPS signal reception.
GPS module detected, satellite GPS signal reception, date and time valid and
synchronized, synchronization pulses active
Once an initial position fix is obtained, instrument will set time and date to GPS + Time zone - user
selected in Set Date/Time menu (see figure below).
Figure 4.24: Set time zone screen
Table 4.5: Keys in Set time zone screen
Changes Time zone.
Confirms selected Time zone and returns to “GENERAL SETUP” menu.
When the time zone is set, Power Master will synchronize its system time clock and internal RTC clock
with the received UTC time. GPS module also provides the instrument with extremely accurate
synchronization pulses every second (PPS – Pulse Per Second) for synchronization purposes in case of
lost satellite reception.
Note: GPS synchronization should be done before starting measurements.
