BW Technologies GasAlertMicro 1, Руководство пользователя

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GasAlertMicro
Alarms
Gas Alarm Setpoints
The detector's gas alarm setpoints trigger the gas alarms,
which are described in Table 8.
Table 8. Gas Alarm Setpoints
Alarm Condition
Low Alarm CO, H
2
S, SO
2
and combustibles:
Ambient gas level above Low Alarm
setpoint. (For O
2
, see below.)
STEL and TWA
Alarms (CO, SO
2
and H
2
S only)
Accumulated value above the STEL
or TWA alarm setpoints
High Alarm CO, H
2
S, SO
2
and combustibles:
Ambient gas level above High Alarm
setpoint. (For O
2
, see below.)
Multi-Gas Alarm Two or more gas alarm conditions
Oxygen Alarm Setpoints: User-selectable for Low and High
Alarms. Set both below, or both above, or one above and
one below 20.9%, as desired
Resetting Gas Alarm Setpoints
Note: Standard factory alarm setpoints will vary by region.
Table 9. Sample Factory Set Alarm Setpoints
OSHA (Occupational Safety and Health Association)
standard settings are used as an example.
Gas TWA STEL Low High
CO 35 ppm 50 ppm 35 ppm 200 ppm
H
2
S 10 ppm 15 ppm 10 ppm 15 ppm
O
2
N/A N/A 19.5% 23.5%
Combustible
Gases N/A N/A 10% LEL 20% LEL
SO
2
10 ppm 15 ppm 10 ppm 15 ppm
To change the factory-set alarm setpoints, refer to the
section “
Calibration and Setting Alarm Setpoints ”.
Note: You can disable an alarm by setting the alarm setpoint
to 0.
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