
13. Care and maintenance
© ElektroPhysik
MiniTest 2500 - MiniTest 4500
59 of 73
13. Care and maintenance
13.1 Care
Clean the gauge, sensor and accessories with a damp cloth. Use water or a mild detergent.
Attention:
Do not use any solvents or acids to clean to clean the plastic parts as they might be damaged or
get brittle.
Do not use any metal objects (tools or brushes) to clean the sensor pole in order to avoid damages.
13.1.1 Using NiMH rechargeable batteries
To achieve optimal service life of the NiMH rechargeable batteries please respect the following
instructions:
-
Before the first use, the NiMH rechargeable batteries should be discharged and recharged in
three subsequent cycles in order to ensure their maximum capacity. This procedure is also
recommended to restore the full capacity of used rechargeable batteries.
- If the MiniTest will not be used a longer period of time, remove the NiMH batteries before storing
the gauge. Please note that even if the gauge is switched off, a faint current will flow which as a
consequence will lead to deep discharge after some time. Deep discharge might destroy
batteries and must be prevented in any case.
- For extended storage periods (more than six months) NiMH rechargeable batteries must be
kept in charged state. In addition, it is recommended to reload at least once a year.
Recommended battery storage temperature: form +10 ºC to +30 ºC at a relative air humidity of
50%.
- Try to save battery life e. g. by operating the MiniTest in auto switch-off mode, instead of
continuous service. This is to avoid current consumption if the gauge is idle for a while.