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OPERATING MANUAL MPU-1 version 1.5
7
Troubleshooting
7.1 Warnings and information displayed by the device.
The MPU-1 display indicates the following error conditions and warnings - they may be
related to the operation of the device or to external conditions affecting the measurement process.
Display
message
Cause
Notes
Solution
I >299A
Measured current
exceeds 299A /
message only
appears in
"Alarm off
”
mode.
In
"Alarm on"
mode, the
current exceeding the limit
value will be always
indicated by alarm mode -
in both cases: when the
measuring range of the
meter is exceeded and
when the user-set limit is
exceeded.
Potentially hazardous
situation. Disconnect the
device from the equipment
under test.
Err 310
Temperature of
rechargeable
battery is too low.
Occurs during the battery
charging process.
Stop the charging process.
Move the MPU-1 to a higher
ambient temperature and re-
charge. If the problem persists
contact Sonel’s local service
provider.
Err 311
Temperature of
rechargeable
battery is too
high.
Occurs during the battery
charging process.
Stop the charging process.
Move the MPU-1 to a lower
ambient temperature and re-
charge. If the problem persists
contact Sonel’s local service
provider.
Err 312
Damaged battery Occurs during the battery
charging process.
Contact
Sonel’s local service
provider.
Err 313
No charging.
Damaged battery
or a problem with
the power supply
adapter.
Occurs during the battery
charging process.
Check
the
power
supply
connection, if the problem
persists
contact Sonel’s local
service provider.
Err 550
Incorrect
calibration
parameters.
The instrument has
detected a loss of
calibration data.
Contact
Sonel’s local service
provider
Err XXX
Other error.
XXX
– any other code.
Contact
Sonel’s local service
provider.
