Autonomous gas detector CNG

ASG-2001



ASG-2001 Autonomous gas detector CNG (natural gas-methane), external DC power 9-30 V

Overview:

          Autonomous ASG-2001 gas detectors range ASG-2000 are designed to detect flammable and toxic gases in hazardous areas such as garage, car parking and boiler room etc. When the particular threshold is exceeded, the detector’s optical indicator is activated and appropriate outputs for controlling the external sounder beacon are activated. It is also possible to start ventilation to vent and remove harmful gases from the room.


Principle of operation:

          Microprocessor detector measurement systems continuously analyze the gas concentration in the room and compare it with the values of the relevant alarm thresholds. Each detector has got three alarm thresholds, strictly related to a defined gas concentration in the air. When the particular threshold is exceeded, the detector’s optical indicator is activated and appropriate outputs for controlling the external sounder beacon are activated. A failure states (detector's failure, sensor's failure, power failure, no sensor module) are signalled by a separate LED and a programmable relay output.

Selection of autnomous detectors:

Selection of ASG-2000 detectors:

Model

ASG-2001

ASG-2001HV

ASG-2002

ASG-2002HV

ASG-2003

ASG-2003HV

Detected gas

CNG (natural gas)

(selective methane)

LPG

 (propane butane)

CO

 (carbon monoxide)

Sensor module

MSG-6001

MSG-6002

MSG-6003

Type of sensor

semiconductor

semiconductor

electrochemical

Power supply

9÷30 V DC

230 V AC

9÷30 V DC

230V AC

9÷30 V DC

230V AC

 

Technical parameters

 
 Parameter

 
 ASG-200x

 
 ASG-200xHV

 
 Power supply voltage

 
 9 ÷ 30 V DC

 
 230 V AC ± 10 %

 
 Power consumption

 
 max 120 mA / 12 V

 max 60 mA / 24 V

 
 max 3 W

 
 Alarm thresholds

 
 ASG-2001: 
A1 = 10 %   A2 = 20 %   A3 = 30 %  LEL methane (selective)

 ASG-2002: A1 = 10 %   A2 = 20 %   A3 = 30 %  LEL propane-butane (50 / 50)

 ASG-2003: A1 = 30 ppm CO (TWA 15 min.) A2 = 60 ppm CO (TWA 15 min.) A3 = 150 ppm (exceeded for at least 60 s) according to PN-EN 50545-1

 
 Working conditions

 
 -20 ÷ 50 °C   humidity 10 ÷ 90 %

Storage conditions

 
 0 ÷ 40 °C  humidity 10 ÷ 80 %
 

Protection level

 
 IP54 (in the recommended mounting position)

 
 Load capacity of relay outputs

 
 3 A / 30 V DC   3 A / 250 V AC

 Limitation of common terminal 3A (due to internal connections).

File name Description  
ASG_2000_datasheet_en_4.pdfProduct Data Sheet

254.54 KB

 

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