User Manual

ALTAIR
®
4XR
46
Technical Data
US
5.2 Performance Specification
Combustible Gas
Sensor
Default Calibration
Setpoint
Min. Calibration
Setpoint
Max. Calibration
Setpoint
EX (% LEL) 58 5 100
EX-H (% LEL) 58 5 100
EX-M (% vol) 2.5 0.1 5.0
O2 (% vol) 15.0 5.0 30.0
H2S (ppm) 20 5 200
H2S-LC (ppm) 20 1 70
CO (ppm) 60 10 1700
NO2 (ppm) 10 1 50
SO2 (ppm) 10 1 20
Feature Options
Instrument password 000 - 999
Cal Due days 1 - 180
Combustible gas type
Methane, butane, propane, pentane, nonane, hydrogen,
combustible
Gas measurement units
• Combustible sensor
• Toxic sensor
• % LEL or % CH
4
• ppm or mg/m3
Periodic log collection rate Off, 15 sec, 30 sec, 1 min, 3 min, 5 min, 10 min, 15 min
Backlight timeout Off, 10 sec, 30 sec, 1 min, 3 min, 5 min, 10 min, On
Range 0 to 100 % LEL or 0 to 5 % CH
4
Resolution 1 % LEL or 0.05 % vol CH
4
Reproducibility
3 % LEL, 0 % to 50 % LEL reading
or 0.15 % CH
4
, 0.00 % to 2.50 % CH
4
(normal temperature range)
5 % LEL, 50 % to 100 % LEL reading
or 0.25 % CH
4
, 2.50 % to 5.00 % CH
4
(normal temperature range)
5 % LEL, 0 % to 50 % LEL reading
or 0.25 % CH
4
, 0.00 % to 2.50 % CH
4
(extended temperature range)
8 % LEL, 50 % to 100 % LEL reading
or 0.4 % CH
4
, 2.50 % to 5.00 % CH
4
(extended temperature range)
Response time
90 % of final reading in less than or equal to 15 sec (Pentane) and 10 sec
(methane) (normal temperature range)