TW-ECH
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TWINSET STAND-ALONE DUAL GAS MONITOR Bull TW-ECH September 2011 CO-CO (Carbon Monoxide), CO-CO2 (Carbon Dioxide), CO-NO2 (Nitrogen Dioxide), CO-CH4 (Methane), CO-C3H8 (Propane), CO-H2 (Hydrogen) Features • High-accuracy Electrochemical Cell sensor for toxic gases and Catalytic (Pellistor) for flammables • 3 or 4-stage SPDT relay outputs with LED status indicators • NEMA 3 Robust Enclosure • Microprocessor-based control • 10-Step Bar-Graph Display of gas levels • Programmable time delays to avoid nuisance alarms • Optional 4-20mA, 0-1V DC, 0-5 V DC or 0-10V DC analog output • Optional remote sensor • Versatile and cost-effective way of detecting two gases simultaneously by a single Controller • Energy savings through the intermittent operation of ventilation equipment in enclosed areas • Commercial or industrial locations where a sudden build-up of toxic and/ or flammable gases may occur • Car Parking and Bus Maintenance Garages, Tunnels, Warehouses, Factories, Food Processing and Bottling Plants, Wastewater Treatment Plants, Steel Mills, Cryogenic laboratories and Incineration Rooms • Stand-alone with relay outputs or analog outputs for direct connection to the existing Building Management System (BMS) or DDCS The Acme TwinSet and its microprocessor-based system features a high quality stand-alone controller providing all the necessary hardware for the continuous monitoring of two gases in the following combinations: CO/CO, CO/CO2, CO/ NO2, CO/COMB. This unit is primarily geared towards providing alarm activated relays for simple applications such as small parking garages. he TwinSet employs the best sensing technologies available: electrochem and pellistor (catalytic combustion) cells . These quality components provide virtually instantaneous detection of targeted gasses and deliver long-term troublefree operation. The main body of the TwinSet detects carbon monoxide build up, while the remote sensor monitors either CO, NO2 or a combustible. Installed within the monitored space, the TwinSet monitors targeted gas concentration rates and automatically operates the mechanical ventilation system of a facility. Upon detection of low levels of hazardous and flammable gases the ventilation system is energized thereby protecting occupants, personnel and gas-sensitive goods and products. The TwinSet contains all the wellknown standard features of ACME’s gas detection line; a robust enclosure, the latest sensing technologies and sta

Standard unit specifications gases Ordering Information MODEL NUMBER GASES DETECTED Power Supply Options 3-Electrode Electrochemical Cell Catalytic Pellistor +3% /- 5% of Calibrated value (electrochemical sensors) +/- 1 . . (pellistor) LINE VOLTAGE 7 years for CO only 2 years for other gases Pellistor 3 years **Y= 1 Bar Graph **Y= 0 or Leave empty for no Bar Graph 3 Polystyrene Grey Surface Mounting Typical Wiring Diagram Typical Wiring Diagram t e . . . Acme ngineering Prod. inc. Trimex Ind. Bldg., PMB #10 2330 State Route 11 Mooers, N.Y. 12958 Tel. : (518) 236-5659 Fax : (518) 236-6941 Ca...