Instruction manual

Chapter 3
General Maintenance
As with all electronic equipment, the FiveStar Alarm will operate
only if it is cared for and maintained properly.
"!
WARNING
Repair or alteration of the FiveStar Alarm beyond the procedures
described in this manual or by anyone other than a person
authorized by MSA could cause the instrument to fail to perform
properly. Use only genuine MSA replacement parts when
performing any maintenance procedures described in this
manual. Substitution of components can seriously impair
instrument performance, alter intrinsic safety characteristics or
avoid agency approvals.
Cleaning and Routine
Care
The case of the FiveStar Alarm should
be cleaned periodically with a soft cloth
dampened with water. If any sensor
holes on the front of the instrument are
blocked with dirt, they must be cleaned:
1. Remove sensor cover plate.
2. Clean the holes in the plate with
a paper clip, wire, or similar
device. The holes may also be
cleaned with oil-free
compressed air.
"
CAUTION
Do not attempt to clean the sensor cover plate while it is in
place; otherwise, sensor damage can occur. The tops of
sensors are very fragile; do not touch or apply pressure to
the tops of any sensors. If a sensor is damaged it can cause
the unit to give false readings.
Figure 3-1.
Sensor Cover Plate
Instruction Manual Chapter 3, General Maintenance
FiveStar Alarm 3-1