The measurement principle of (NDIR) "Non-dispersive Dual-wavelength Infrared Spectrum" is adopted for PGas-31 gas infrared quantitative detector. There is no radiotive emitter and it is convenient to carry; the screen of hand-held probe uses OLED, it is self-luminous with high brightness, with no visual angle problem; high precision, good stability and sensitivity, and the resolution of leakage detection can reach 0.1ppm; the response time is fast; with no consumable parts, life time of the sensor is extra long; it can detect gases include C2H2, CH4, C4H10, C2H4, C2H6, C3H8, CO2, CO and SF6, etc.
Main features
l The probe unit adopts light-emitting display screen of organic matter, it is self-luminous with low power consumption and high brightness, and there is no problem of visual angle
l The host machine adopts 3.5 inch color touch display screen, the brightness is high, the visual angle is small and the contrast is adjustable
l The sensitivity is high, the detection of leakage can reach 0.1 ppm, and the precision can reach 1ppm at most
l Good stability
l Swift response time
l Acoustoptic alarm
l Facilitates carrying;
l It can realize manual storage of measurement data;
l Long service life of sensor
Technical parameters
|
Parameter
|
Characteristics
|
|
Measurement principle
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Infrared (NDIR)
|
|
Measurement range
|
Refer to lectotype table
|
|
Sampling mode
|
Pumping type
|
|
Service temperature
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-10~60℃
|
|
Power supply
|
7.2V DC, internal battery power supply
|
|
Response time (T90s)
|
1~5 second(s)
|
|
Warm-up time
|
100 seconds
|
|
Probe unit rod length
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22cm
|
|
Service life of sensor
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﹥10 years
|
|
Calibration time
|
Calibration once every six months
|
|
Alarm mode
|
Buzzer
|
Lectotype table for detected gas (part gas)
|
Model
|
Measured gas
|
Measurement range (volume content)
|
Measurement precision
|
|
PGas-31-CO2-1
|
CO2 gas
|
0-5000ppm
|
±1%F.S.
|
|
PGas-31-CO2-2
|
CO2 gas
|
0-2%
|
±1%F.S.
|
|
PGas-31-CO2-3
|
CO2 gas
|
0-20%
|
±1%F.S.
|
|
PGas-31-CO2-4
|
CO2 gas
|
0-100%
|
±1%F.S.
|
|
PGas-31-CO-1
|
CO gas
|
0-20000ppm
|
±2%F.S.
|
|
PGas-31-CO-2
|
CO gas
|
0-10%
|
±1%F.S.
|
|
PGas-31-SF6
|
SF6 gas
|
0-1000ppm
|
±1%F.S.
|
|
PGas-31-CH4-1
|
CH4 gas (methane)
|
0-4.4%(0-100%LEL)
|
±1%F.S.
|
|
PGas-31-CH4-2
|
CH4 gas (methane)
|
0-100%
|
±1%F.S.
|
|
PGas-31-C2H6
|
C2H6 gas (ethane)
|
0-2.4 %(0-100%LEL)
|
±1%F.S.
|
|
PGas-31-C3H8
|
C3H8 gas (propane)
|
0-1.7%(0-100%LEL)
|
±1%F.S.
|
|
PGas-31- C4H10
|
C4H10 gas (butane)
|
0-1.4%(0-100%LEL)
|
±1%F.S.
|
|
PGas-31- C2H2
|
C2H2 gas (acetylene)
|
0-2.3%(0-100%LEL)
|
±1%F.S.
|
|
PGas-31- C2H4
|
C2H4 gas (ethylene)
|
0-2.4%(0-100%LEL)
|
±2%F.S.
|
Executed standard
GB12358-2006 "Gas monitors and alarms for workplace--General technical requirements"