MPM-210H OPERATION MANUAL
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9. Maintenance
9.1 Daily Maintenance
Turn off the power and pull out the power cord before cleaning. Use a soft dry
cloth to gently dust the instrument. Do not use chemicals (acetone, alcohol,
cleaning fluid, etc.), as they may cause damage to the coating. Do not
vigorously rub the display, as damage may result.
9.2 Cleaning the Optical Power Sensor
Dust and dirt on the optical sensor(s) can cause degradation of power
measurement performance. To clean the optical power sensor, use an air
duster in order to remove dust. We strongly recommend to put optical adapter
caps to avoid dust when optical fiber cables are not connected.
9.3 Replacing Fuses
Use two surge resistant type fuses. T1.6A/ 250VAC. Fuses are in the fuse box
above the power inlet on the rear panel. Pull out the fuse box, and replace with
new fuses.
9.4 Long-Term Storage
■ Before storing the instrument:
1) Wipe off dust, fingerprints, dirt, stains, etc., from the instrument.
2) Use the packing materials that were originally used to package the
instrument.
3) Avoid storing the instrument in the following types of places.
・ Locations that receive direct sunlight
・ Locations subject to high temperature or high humidity
・ Locations where there’s a large amount of dirt, dust, salt content, or
corrosive gas
・ Locations subject to vibration
・ Locations where the instrument can be affected by noise from an
electric or magnetic field,
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