GasAlertMicro
Quick Reference Guide
14
Specifications
Instrument dimensions:
6 x 10 x 3.3 cm (2.4 x 4.0 x 1.3 in.)
Weight:
211 g (7.4 oz.)
Operating and storage conditions:
Temperature: -20°C to +50°C (-4ºF to +122ºF)
Humidity: 5% to 95% relative humidity (non-condensing)
Pressure: 95 to 110 kPa
Alarm setpoints:
May vary by region and are user-settable
Detection range:
CO: 0-500 ppm in 1 ppm increments
H
2
S, SO
2
: 0-100 ppm in 1 ppm increments
O
2
: 0-30% in 0.1% increments
Combustibles: field settable for:
0-100% LEL in 1% LEL increments or
0-5.0% v/v methane
Sensor type:
H
2
S/CO: Twin plug-in electrochemical cell
O
2
, SO
2
, H
2
S, CO: Single plug-in electrochemical cell
Combustibles: Plug-in catalytic bead
O
2
measuring principle:
Capillary controlled concentration
sensor
Alarm conditions:
TWA alarm, STEL alarm, low alarm, high
alarm, multi-gas alarm, sensor alarm, low battery alarm,
confidence beep, automatic shutdown alarm
Audible alarm:
95 dB at 1 ft. (0.3 m) variable pulsed dual
beepers
Visual alarm:
Dual red light-emitting diodes (LED)
Display:
Alphanumeric liquid crystal display (LCD)
Backlight:
Automatically activates whenever there is
insufficient light to view the display and during alarm conditions
Self-test:
Initiated at activation
Calibration:
Automatic zero and automatic span
Oxygen sensor:
Automatic span on activation (selectable)
User field options:
Confidence beep, latching low and high
alarms, pass code protection, enable/display SAFE display
mode, combustible sensor measurement (0-100% LEL or 0-
5.0% v/v methane, sensor disable, set calibration due date,
TWA and STEL, stealth mode, language selection,
enable/disable automatic oxygen calibration, set span
concentration values, set STEL calculation period,
enable/disable automatic backlight, and distinguish use of the
GA MicroBatt battery
Datalogger models only: adjust clock calendar, set sampling
rate, and enable/disable bump due note
