GasAlertMicro 5 & GasAlertMicro 5 PID
Quick Reference Guide
2
⇒It is recommended that the combustible
sensor be checked with a known
concentration of calibration gas after any
known exposure to contaminants/poisons
(sulfur compounds, silicon vapors,
halogenated compounds, etc.).
⇒BW recommends to “bump test” the sensors,
before each day’s use, to confirm their ability
to respond to gas by exposing the detector to
a gas concentration that exceeds the alarm
setpoints. Manually verify that the audible and
visual alarms are activated. Calibrate if the
readings are not within the specified limits.
⇒Only the combustible gas detection portion of
this instrument has been assessed for
performance by CSA International.
⇒The combustible sensor is factory calibrated
to 50% LEL methane. If monitoring a different
combustible gas in the % LEL range, calibrate
the sensor using the appropriate gas.
⇒Caution: High off-scale readings may indicate
an explosive concentration.
⇒Protect the combustible sensor from exposure
to lead compounds, silicones, and chlorinated
hydrocarbons. Although certain organic
vapors (such as leaded gasoline and
halogenated hydrocarbons) may temporarily
inhibit sensor
erformance
in most cases
the
sensor will recover after calibration.
⇒For use only in potentially explosive
atmospheres where oxygen concentrations do
not exceed 20.9% (v/v).
⇒Any rapid up-scaling reading followed by a
declining or erratic reading may indicate a gas
concentration beyond upper scale limit, which
may be hazardous.
⇒Extended exposure of the GasAlertMicro 5 and
GasAlertMicro 5 PID to certain concentrations
of combustible gases and air may stress a
detector element, which can seriously affect
its performance. If an alarm occurs due to a
high concentration of combustible gases,
recalibration should be performed, or if
needed, the sensor replaced.
⇒Protect the PID sensor from exposure to
silicone vapors.
⇒The BW pump module (M5-PUMP) is certified for
use with the GasAlertMicro 5 and GasAlertMicro
5 PID only.
