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5
– Maintenance
47
Chapter 5
| Maintenance
Gas monitors are safety instruments. Recognizing this fact, OLDHAM SIMTRONICS
recommends that a functional test be performed on every portable gas monitor prior to
each use. A functional test involves injecting a gas of sufficient concentration at the
sensor level to trigger pre-set alarms. This test does not, in any event, replace a full
calibration of the sensors.
If a gas monitor does not respond correctly to a gas test, a full calibration with a
calibration gas is mandatory.
These recommendations are consistent with applicable industry safety protocols and
with the standards and directives relative to the safety of industrial sites. OLDHAM
SIMTRONICS is also not responsible for procedures performed onsite.
The gas monitor is factory-programmed to display a maintenance alert if a
calibration has not been performed in the last twelve months (the message
Calibration due
will appear on the screen).
The operations explained in this chapter must be performed by authorized,
qualified personnel only, as they could adversely affect detection safety.
Accessing maintenance menus
When in normal operation mode,
■
Scroll to parameters using the
/
button until a request for an access code
and
0000
is displayed.
■
0018
is the default code. Scroll to each digit with the
button. Use button to
select the right number and confirm access code with the
ENTER
button.
Summary of Contents for BM 25A/AW
Page 1: ...BM 25A AW Area Gas Monitor Part Number NP25AEN Version C 4 User Manual ...
Page 10: ...10 BM 25A AW Instruction Manual Product Overview Figure 2 Product Overview ...
Page 18: ...18 BM 25A AW Instruction Manual ...
Page 34: ...34 BM 25A AW Instruction Manual ...
Page 70: ...70 BM 25A AW Instruction Manual ...
Page 75: ...9 Special Instructions 75 CSA Control Drawing for BM 25A AW Connections ...
Page 78: ...78 BM 25A AW Instruction Manual ...