AF008-02-1201
11
Number
Issue
Date
CN Number
1
2-
2
17-01-07
22933
Compiled
By:
S.Mynott
Date
Compiled:
08/08/06
MIT5XX/10XX
1
st
Used On:
SERVICE MANUAL
Section3. Battery charge calibration
A battery calibration charge sequence will need to be carried out after the following:
1. A new instrument has been fully assembled for the first time.
2. An instrument’s battery has been replaced.
3. An instrument’s display board has been replaced.
4. An instrument’s power supply board has been replaced.
The battery charge calibration procedure is as follows:
The charge sequence.
1. Switch on the unit and wait for the instrument to complete its initialisation. Note, if the battery becomes
disconnected for any reason during or after assembly briefly apply the mains to reset the battery circuit.
2. If mains power is not connected the instrument screen displays ‘bat’ and ‘start charge’. This instructs the user
to connect the instrument to mains power.
3. With mains power connected, the green ‘led’ next to the ‘on/off’ switch is lit, the screen displays ‘bat’ and the
segments of the battery monitor bar graph light sequentially indicating the battery is being charged.
4. After a charge period of 14 hours the instrument then enters a rest state for 2 hours. In this state the instruments
screen displays ‘bat’ and ‘resting bat’.
5. After the 2 hour rest period has elapsed the instrument screen displays ‘bat’ and ‘end charge’. The green ‘led’
flashes. This message remains on the screen until the mains power is disconnected.
6. When mains power is disconnected the screen displays ‘bat’ and ‘switch off’. The operator should now switch
the instrument off.
The discharge sequence.
1. Switch the instrument back on. The instrument screen displays ‘bat’ and ‘discharging’. The instrument remains
in this state for 15 minutes.
2. After the 15 minute period has elapsed, the instrument screen displays ‘switch off’. The operator should now
turn the instrument off. Battery calibration is now complete.
An instrument can be put into battery calibration mode at any time by connecting up a PC to the instrument
front panel RS232. Open the programme ‘S1-5XX, S1-10XX Test and Calibration Software’ and press the ‘Recal
Battery’ button. Switch the unit back on and follow the sequence described above.
The software is available for download from the Megger Limited website part number (6111-759). Support files for
this will have to be downloaded from the Microsoft™ website. A CD version (including the necessary support files) is
available on request.
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