EXFO ETS-1000G - Manual (Page 138)

Service and Maintenance
128 ETS-1000G
Recalibrating the Unit
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 two
years.
Battery Charging Procedure
To charge the battery it is necessary to execute the following
actions:
1. Connect the external power unit.
2. Make sure that the charge has begun: LED indicator located at the
bottom of the front panel ashes green.
3. If the LED is lit green — charge is finished or battery temperature is
greater than 65
o
C, and the charge stopped until the cooling battery.
After cooling, battery charge is automatically renewed.
4. To control the battery charging it is necessary to switch on the device,
turn off the power supply and after 2 minutes to check the voltage
value in the menu “Device settings” > “Battery”. If the voltage exceeds
9.8V — battery is charged, If the voltage is less than 9.8V — charge has
been stopped until the cooling battery.
The time required to charge the battery is about 5 hours. Recommended
indoor temperature during charging is from 15
o
C to 25
o
C. If the
temperature is higher more time to charge may be required.