2.2 Speci
fi
cations
Table 2.1 Main Speci
fi
cations
Working Principle
Target Gas
Sensitivity
Detection Range (CH4)
Measurement Accuracy
Detection Distance
Unit
Response Time
Weight (with battery and sight)
Size (without sight)
Data Transmission
Display
Measurement Method
Enclosure Level
Tunable Diode Laser Absorption
Spectroscopy (TDLAS)
Methane (CH4) and
methane-containing gases
5 (Actual) ppm*m
0 to 99999 ppm*m
±10% (100 to 50000 ppm*m)
160 m (75% reflectivity, slow
detection mode)
ppm*m/%vol*m/%LEL*m
0.1 s/0.4 s/1.6 s
0.76 kg
160 mm*210 mm*80 mm
Bluetooth, Dedicated APP
2.8 Inch LCD
Laser Reflection
IP54
Laser Classes
Operating Temperature
Operating Humidity
Sight Effective Distance
Beam Dimension
Power Supply
Operating Time
Self-Test
Infrared Laser: Class I Eye Safe
Green Indication Laser: Class 3R,
Avoid direct eye exposure
-20 to +45℃
<80%RH, Non-condensing
Storage Temperature
-20 to +60℃
>15 m
Rechargeable Lithium battery pack,
Nominal Voltage: 7.2 V, HS4000-B
Divergence angle: 2 mrad（4 cm at 20 m）
Continuous operating time: 15 hours
(Typical value, ambient temperature 25°C,
2 batteries)
Built-in self-test while turning on the
instrument, 10 s （typical value）
Explosion Proof Classi
fi
cation
Ex ib op is IIA T3 Gb
II 2 G Ex ib op is IIA T3 Gb
Threshold Alarm
Threshold: Can be set by users
Alarm: Buzz with LCD turning red
System False Alarm
Corresponding error message while there is
any hardware issue
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