SPECIFICATIONS
Gases Detected
Natural Gas (Methane)
Carbon Monoxide (CO) [Optional]
Oxygen (O
2
)
[Optional]
Hydrogen Sulfide (H
2
S) [Optional]
Sensors
Dual Catalytic Combustion (CH
4
)
Thermal Conductivity (CH
4
)
Electrochemical (CO, H
2
S, O
2
)
Ranges
GAS
0 to 10,000 ppm CH
4
by volume
0 to 100% CH
4
by volume
PPM CO
0 to 2000 ppm carbon monoxide
% O2
0 to 40% by volume
PPM H
2
S
0 to 100 by volume
Resolution
GAS
1 ppm from 0 to 40,000 ppm
0.05 vol % from 0 to 5 vol %
1.0 vol % from 5 to 100 vol %
CO
1 ppm
O
2
0.1 vol %
Warm-Up Time
60 seconds
Response Time:
CH4:
0.6 seconds (Survey)
2 seconds (Monitor)
CO:
45 seconds
O2:
60 seconds
Operating Temp.
-20
o
C to 40
o
C (0
o
F to 105
o
F)
Storage Temperature
-40
o
C to 60
o
C (-40
o
F to 140
o
F)
Data Storage
And
Reports
24 Calibrations
2 to 3 months readings (typical)
Exposure and Bar-Hole Measurements,
Calibration History, Sensor Sensitivity,
Operational Periods by User and Unit ID,
Humidity
0 to 95% RH (non-condensing)
Power Supply
Two C-size Alkaline or
Two C-size Rechargeable NiMH
Office Reports
Continuous Operating
Time per Battery Set
10 hours typical (25
o
C)
Accuracy
CH4:
(0º to 35ºC)
2% of reading
20 ppm
0.1% to 5%;
2.0% to 100 vol %
Weight
24 oz. (680 g)
CO:
5% of reading
10 ppm
O2:
0.2% vol %
iii