Technical Specifications/Certifications; Technical Specifications - MSA ALTAIR 4X Manuel D'utilisation

5. Technical Specifications/Certifications

5.1 Technical Specifications

WEIGHT 7.9 oz. (instrument with battery and clip)
DIMENSIONS 4.4 x 3.00 x 1.37 inches – without fastening clip
(L x W x H)
ALARMS Four gas alarm LEDs, a charge status LED, an audible alarm,
and a vibrating alarm
VOLUME OF 95 dB typical
AUDIBLE
ALARM
DISPLAY LCD display
BATTERY TYPE Rechargeable Li polymer battery.
Li polymer battery must not be charged in Ex area
INSTRUMENT 24 hours at 77°F (25°C)
RUN TIME
CHARGING TIME ≤ 4 hours
The maximum safe area charging voltage
Um = 6.7 Volts D.C
TEMP RANGE 14 to 104°F
-4 to 122°F
50 to 95°F
-40 to +140°F (-40 to 60°C)
-40 to +129°F (-40 to 54°C)
HUMIDITY 15 - 90% relative humidity, non-condensing;
RANGE 5 - 95% RH intermittent
ATMOSPHERIC 800 to 1200 mbar
PRESSURE
RANGE
INGRESS IP 67
PROTECTION
MEASURING Combustible gas: Catalytic sensor
METHODS O 2 and Toxic gas: Electrochemical sensor
MEASURING Combustible
RANGE 0-100% LEL
0-5.00% CH 4
(-10 to 40°C) Normal operating range
(-20 to 50°C) Extended operating range
(10 to 35°C) While charging battery
Intrinsic safety
ambient temperature range
(ATEX, IEC)
Intrinsic safety
ambient temperature range
(CSA, ETL)
O 2 CO
0-30% Vol. 0-1999 ppm
H 2 S
0-200 ppm
5-1