Henan Zhiyi System Engineering Co., Ltd. Company Logo Henan Zhiyi System Engineering Co., Ltd.
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PGAS-21 Portable Single Gas Detector

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Henan Zhiyi System Engineering Co., Ltd.
[China]

Address
No.1 Cuizhu Str. High-new Tech Zone, Zhengzhou, Henan, PRC Zhengzhou Henan
Phone
86-371-68988008
Contact name
Angel Cheng

Quick Information

  • Place of Origin: China

Description

Brief introduction

PGas-21 Series Single Gas Detector has high sensitivity and high accrancy, it is suitable for the detection of many kinds of toxic and harmful gases. The instrument adopts advanced 16-bit microcontroller with extra low power consumption and quick processing speed. It is firm and durable with the anti-skid design of shell. It is widely used in petroleum, petrochemistry, chemical industry, gas, coal, metallurgy and power system; safety detection in municipal administration, communication and traffic tunnel construction; electronics and semiconductor industry and other places where toxic and harmful gases exist.

  

Technical parameters

Parameter

Characteristics

Measuring gas

Combustible gas, toxic and harmful gas, refer to lectotype table for details

Sampling Method

Diffusion, Pump sampling

Measurement principle of sensor

Electrochemical (oxygen and poisonous gas), catalytic combustion (combustible gas)

Range

Refer to lectotype table for details

Alarm indication

90dB variable sound vibration alarm, overrange, alarm against insufficient quantity of electricity

Response time

(CO, H2S, SO2, CL2, NO, CLO2, NO2<60s), (HCN, NH3, O3, HCl, C2H4O <160s), (PH3<100s), (combustible gas <30s)

Detection error

±5%F.S

Operation mode

Touch push-key

Display mode

Five-bit eight-segment LCD digital display

Temperature  of Operation envioroment

20ƒ~55

Humidity of Operation envioroment

0~95%RH (no dew condensation)

Storage temperature

0ƒ~40

Power supply

Rechargeable lithium battery, continuously work for over 24 hours

Battery

4.2V lithium battery, 1700mA/h capacity

Dimension

100×60×30 mm

Weight

105g

Explosion-proof grade

CT3

Protection grade

IP65

Calibration mode

Optional calibrating cap to facilitate calibration by users

 

 

Lectotype table for detectable gas

Model

Range

Low alarm setting range

High alarm setting range

Low alarm point

High alarm point

PGas-21-FL

0-100%LEL

10%LEL-5%LEL

25%LEL-80%LEL

20%LEL

50%LEL

PGas-21-CO

0-500ppm

25ppm-100ppm

100ppm-500ppm

35ppm

200ppm

PGas-21-CO

0-1000ppm

25ppm-100ppm

100ppm-500ppm

35ppm

200ppm

PGas-21-H2S

0-100ppm

5ppm-15ppm

15ppm-30ppm

10ppm

15ppm

PGas-21-SO2

0-100ppm

1ppm-3ppm

3ppm-10ppm

2ppm

5ppm

PGas-21-CL2

0-20ppm

3ppm-10ppm

5ppm-15ppm

5ppm

10ppm

PGas-21-NH3

0-100ppm

20ppm-30ppm

30ppm-70ppm

25ppm

50ppm

PGas-21-NO

0-250ppm

20ppm-50ppm

50ppm-100ppm

25ppm

50ppm

PGas-21-NO2

0-100ppm

1ppm-2ppm

2ppm-5ppm

1ppm

2ppm

PGas-21-HCN

0-30ppm

5ppm-10ppm

10ppm-15ppm

5ppm

10ppm

PGas-21-PH3

0-1ppm

0.3ppm-0.5ppm

0.5ppm-0.8ppm

0.3ppm

0.6ppm

 

Executed standard

Note: GB standard is Chinese National Standard. 

GB12358-2006 Gas monitors and alarms for workplace--General technical requirements

GB3836.1-2000 Electrical apparatus for explosive gas atmospheres--Part 1  General requirements

GB3836.4-2000 Electrical apparatus for explosive gas atmospheres--Part 4  intrinsic safety "i"

Explosion-proof mark: ExiaIICT3, it applies to 0 zone, 1 zone and 2 zone, the place that contains IIC category and T3 group of explosive gas mixture, and is qualified to get explosion-proof conformity certificate through inspection by CQST.


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