EXFO PPM-350C PON Power Meter - Manual (Page 33)

PPM-350C 27
Replacing Disposable Alkaline Batteries
Your unit requires three AA alkaline batteries.
Note: The provided AC adapter is not a charger.
To replace disposable alkaline batteries:
1. Turn off the unit (if the AC adapter is plugged in, you
may replace batteries while unit is on).
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, EXFO recommends calibrating your unit every three years.
Note: The FlexCare warranty program includes Calibration/Verification
packages (see Service and Repairs on page 37).
W
ARNING
Do not throw batteries into fire or water and do not short-circuit
the batteries’ electrical contacts.
W
ARNING
Using the wrong type of battery can lead to product damage,
overheating, or even explosion.
C
AUTION
EXFO guarantees the specifications and viability of the products
ONLY if they are used with chargers provided by EXFO.
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