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The Model CMS300 Carbon Monoxide Transmitter and Switch provides a field selectable current or voltage output that is proportional to the carbon monoxide concentration in underground parking garages, vehicle maintenance facilities, or mechanical rooms. An integral relay can be used for alarm conditions and is configured with preset jumper selectable ranges of 25, 60, or 150 PPM. Field calibration can be done by using Model GCK-200CO-2000CO2 calibration gas, Model A-507 calibration adapter, and the on board zero and span potentiometers.

Product Applications

• Garage or loading dock ventilation
• Vehicle maintenance facilities
• Mechanical room monitoring

Features

• Field selectable current or voltage analog outputs
• Integral SPDT relay contact for low or high alarm
• Jumper selectable alarm set points of 25, 60, or 150 PPM
• UL recognized carbon monoxide sensing element
• Field calibration kits

Specifications

• Current/Voltage Selectable Output, Jumper Selectable SPDT Relay Contact
• Range : 0-300 PPM.
• Coverage Area : 7,500 ft2 (700 m2) or 50 ft (15 m) radius.
• Accuracy : ±5 PPM or 5% of reading for 0-300 PPM (whichever is greater).
• Temperature Range : -4 to 122°F (-20 to 50°C).
  
• Analog Output : Jumper selectable 4-20 mA (loop powered) or 2-10 V (max. load 2 kΩ).
  
• Enclosure Rating : IP64.
  
• Switch Type : SPDT
  
• Relay Electrical Rating : 30 VDC, 250 VAC. N/O=5 A. N/C=3 A resistive.
  
• Set Point : Jumper selectable 25, 60, or 150 PPM.

Models & Ordering