Honeywell GasAlertMicro 5 - Calibration Procedures; Calibration Guidelines and Diagnostics

GasAlertMicro 5/PID/IR
User Manual
44
Refer to Pump Test for more information. If the pump test is successful,
the detector returns to normal operation, otherwise the pump alarm con-
tinues. If the pump alarm persists, refer to the Pump Operation section in
Troubleshooting
.
Low Battery Alarm
The detector tests the batteries upon activation and continuously
thereafter. Battery power is continually displayed during normal
operation. If the battery voltage is low, the detector activates the
low battery alarm.
The low battery alarm continues until the batteries are replaced/charged,
or until the battery power is almost depleted. If the battery voltage
becomes too low, the detector deactivates.
Note
Typically, the low battery alarm continues for 30 minutes before
the detector automatically deactivates.
Automatic Deactivation Alarm
If the battery voltage is in immediate danger of falling below the minimum
operating voltage, the audible alarm beeps eight times and the visual
alarm flashes eight times. After 3 seconds, the LCD dims and the
detector deactivates.
To replace or charge the batteries, refer to the following sections:
• Replacing the Alkaline Batteries
• Replacing the Lithium Battery Pack
Calibration and Setting Alarm Setpoints
Guidelines
When calibrating the detector, adhere to the following guidelines:
Recommended gas mixture:
CO: 50 to 500 ppm balance N
2
H
2
S: 10 to 100 ppm balance N
2
PH
3
: 1 to 5 ppm balance N
2
SO
2
: 10 to 50 ppm balance N
2
Cl
2
: 3 to 25 ppm balance N
2
NH
3
: 20 to 100 ppm balance N
2
NO
2
: 5 to 50 ppm balance N
2
HCN: 5 to 20 ppm balance N
2
ClO
2
: 0.1 to 1.0 ppm balance N
2
O
3
: 0.1 to 1.0 ppm balance N
2
VOC:100 ppm isobutylene
LEL: 50% LEL or 2.5% by vol. methane balance air
CO
2
: 5000 ppm balance air
O
2
: 18.0%
• To ensure accurate calibration, use a premium-grade calibration
gas. Gases approved by the National Institute of Standards and
Technology (NIST) improves the validity of the calibration.
• Do not use a gas cylinder beyond its expiration date.