Maintenance
18
Replacing Batteries
Your unit requires three AA alkaline or rechargeable
batteries.
To replace batteries:
1. Turn off the unit.
2. Open the battery compartment door located at the
back of the unit.
3. Replace batteries, respecting the polarity as shown.
4. Close the battery compartment door.
Recalibrating the Unit
Manufacturing and service center calibrations are based on the ISO/IEC 17025
Standard, which states that calibration documents must not contain a
recommended calibration interval, unless this has been previously agreed upon
with the customer.
Validity of specifications depends on operating conditions. For example, the
calibration validity period can be longer or shorter depending on the intensity of use,
environmental conditions and unit maintenance. You should determine the
adequate calibration interval for your unit according to your accuracy requirements.
Under normal use, we recommend calibrating your unit everyyear.
Note:
Recalibration only applies to the EPM-50 Power Meter.
WARNING
Do not throw batteries into fire or water and do not short-circuit
the batteries’ electrical contacts. Do not disassemble.
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