Wall mounted CO sensor alarm for air quality monitoring


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Toxic and Flammable Gas Monitor - Networked System

Features of the VA201T Toxic and Combustible gas monitoring system with analog outputs

Daisy chain installation
Proven sensing technology
10-step LED display
Stand-alone or network configuration
Optional 4-20 mA and relay output
Optional audible alarm and LCD display
One-man remote calibration
Field-proven protection
Innovative and compact case design
Easy installation and operation

INTRODUCTION
The VA201T series to meet or exceed safety requirements in a variety of commercial and industrial applications. These transmitters can work in a network mode with the Vulcain VA201C controller through their RS-485 link, or can be used in a stand-alone configuration offering 4-20mA and alarm relay outputs.

Vulcain’s sensors’ inherent reliability and stability characteristics have accounted for the universal acceptance within a broad spectrum of commercial and industrial applications. Catalytic gas sensors are used to detect hundreds of different flammable gases and vapor concentrations. Toxic gases are detected through electrochemical cells, while fuel cells are used for oxygen detection. Moreover, a second generation of semi-conductor sensors provides a highly effective solution for a range of different applications.

Portable Air Quality Monitor, CO, CO2 here

Specifications

Sensor
Q1 Sensors	Toxic -Electrochemical (toxic) Combustibles -Catalytic combustion Oxygen -Diffusion Cell
Q2 Sensor	Solid state CO - Electrochemical
Accuracy	+/- 3% of the range
Stability	+/- 2% of the range over 12 months
Repeatability
DISPLAY	10-step LED, LCD
Visual Indicators	Failure Indication : Yellow LED Normal Operation: Green LED
Relay Output Rating:	5A, 30Vdc or 250 Vac (resistive load)
†Audible Alarm:	65 dBA at 3 feet (1 metre)
Outputs:	RS-485, 4-20mA, Alarm relay
Operating Humidity Range:	0 - 95% RH, non-condensing
Operating Temperature Range:	32°F to 100°F (0°C to 40°C)
Low temperature range	available 4°F (-20°C)
Certifications	Certified to UL and CSA standards
Dimensions	8.4 in.(H) x 5.3 in.(W) x 2.25 in.(D) (21.3 cm x 13.4 cm x 5.7 cm)
Enclosure	IP54
Power supply required	24V AC

Gas Detected	Range		Accuracy
Sensor Type	Q1-sensor	Q2 sensor	Q1 sensor	Q2 sensor
CO	0-50 ppm 0-100 ppm 0-250 ppm(std) 0-500 ppm	0-250 ppm	3%	5%
NO2	0-10 ppm	-	3%	-
H2	0-2.5%	0-100% LEL	3%	5%
CL2	0-15 ppm	-	3%	-
Combustibles	0-100% LEL	0-100% LEL	3%	5%
NH3	0-100 ppm	-	5%	-
Refrigerants	-	0-2000 ppm *N/A R123	-	10%
H2S	0-50 ppm	-	3%	-
O2	0-25%	-	3%	-
SO2	0-10 ppm	-	3%	-
ETO	0-20 ppm	-	3%	-
HCN	0-50 ppm	-	3%	-
HCL	0-50 ppm	-	3%	-

Ordering Information

Part no.	Description	Price
Stand alone configurations
VA201TQ1CO CAR-D250	CO Transmitter with 4-20mA, Audible alarm, relay & Display 0-250ppm	$910.00
VA201TQ1CO C-D250	CO Transmitter with 4-20mA, Audible alarm, relay & Display 0-250ppm	$825.00
VA201TQ1O2 CAR-D	Oxygen Transmitter with 4-20mA, Audible alarm, relay & Display	$1026.00
VA201TQ1O2 C-D	Oxygen Transmitter with 4-20mA, Display	$945.00
VA201TQ1NO2 CAR-D	NO2 Transmitter with 4-20mA, Audible alarm, relay & Display 0-10 ppm	$910.00
VA201TQ1NO2 C-D	NO2 Transmitter with 4-20mA, Display 0-10 ppm	$910.00
VA201TQ1COMB CAR-D	Combustibles Transmitter with 4-20mA, Audible alarm, relay & Display 0-100% LEL	$940.00
VA201TQ1COMB C-D	Combustibles Transmitter with 4-20mA, & Display 0-100% LEL	$855.00
Network Configurations- Transmitters	(no local alarm or analog output should be used with controller)
VA201TQ1CO NET250	CO Transmitter 0-250ppm	$625.00
VA201TQ1O2 NET	Oxygen Transmitter	$655.00
VA201TQ1NO2 NET	NO2 Transmitter 0-10ppm	$625.00
VA201TQ1COM NET	Combustibles Transmitter 0-100% LEL	$655.00
Network Controller
VA-201CAC	Central Controller with three alarm relays to network transmitters	$875.00
Options
VA 201TA50	Transformer 110V to 24V AC	$50.00
/RST	remote sensor option for VA201	$80.00
	Other stand alone toxic and combustible gas monitors here	call for quote on Networked Systems

Topac Inc 231 CJC Highway, Cohasset MA 02025 USA
Tel: 781 740 8778 Fax: 781 740 8779 e-mail: sales@topac.com