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CMS300 | Carbon monoxide transmitter & switch | 0-300 PPM | 4-20 mA/2-10 V (maximum load 2K Ω) | Dwyer

Carbon monoxide transmitter & switch, 0-300 PPM, 4-20 mA/2-10 V (maximum load 2K Ω)

Brand: DwyerSKU: CMS300

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Carbon monoxide transmitter & switch | 0-300 PPM | 4-20 mA/2-10 V (maximum load 2K Ω)

MODEL CMS300 CARBON MONOXIDE TRANSMITTER AND SWITCH

Current/Voltage Selectable Output, Jumper Selectable SPDT Relay Contact

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

Product Applications

Garage or loading dock ventilation
Vehicle maintenance facilities
Mechanical room monitoring

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

Temperature Effect: ±2% over range.
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).
Resolution: 1 PPM.
Temperature Range: -4 to 122°F (-20 to 50°C).
Storage Temperature: For best sensor life; 32°F to 68°F (0 to 20°C).
Humidity Range: 15-90% RH constant; 0-99% RH intermittent.
Response Time: <45 seconds to 90% of final value
Calibration: 15 turn span and zero adjustment potentiometers.
Housing: UV resistant glass filledpolycarbonate.
Analog Output: Jumper selectable 4 to 20 mA (loop powered) or 2 to 10 V (maximum load 2 kΩ).
Enclosure Rating: IP64.
Weight: 1 lb (0.45 kg).
Switch Type: Single-pole double-throw (SPDT).
Electrical Rating: 30 VAC/VDC. N/O = 5 A; N/C = 3 A
Set Point: Jumper selectable 25; 60; or 150 PPM.
Set Point Differential/Hysteresis: 3% of scale.
Relay Action: Factory set for direct acting.
Agency Approvals: Sensor is UL recognized component for ANSI/UL-2034; UL-2075; E340403; CE.