CO-Guard

Ideal for any setting where CO levels in breathing air need to be monitored, the CO-Guard is designed to be simple. This compact sensor is easy to install, is pre-calibrated, and lasts up to three years.
By keeping the design of the CO-Guard simple, ENMET provides an easy-to-use sensor that monitors air and meets requirements for Grade D breathing air. The most common application for the CO-Guard is monitoring breathable air while applying wood finishing or paint spray, although it can easily be used in other settings.

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General Specifications

DisplayHigh-contrast, backlit
Resolution1 ppm
AlarmsVisual Gas Alarm: 3 red LEDs Visual Power Fault: Green/Red LEDs Audible Alarm: 105 dB at 30 cm (12 inches)
Operating Power110 VAC, 220 VAC and/or 24 VDC, 15W
Power ConnectionSupplied with strain relief for 0.20 to 0.35 inch diameter cable
Outputs
Relays4 Form C, 10A SPDT contacts, 3 gas alarms and 1 fault
Analog4-20mA
DigitalRS-485 COM port interface using Modbus RTU
SensorElectrochemical
Response Timet90 = 30 sec
Accuracy+/- 10% of reading
Temperature Range32° to 104° F (0° to +40° C)
Inlet Air Line Connection1/4 inch NPT female
Air Line Sample Hose to Monitor5 foot length
Inlet Pressure60 to 150 psi, air supply lines, 55 psi regulated to monitor
EnclosurePolycarbonate
Dimensions7.1 W x 6.1 H x 3.5 D inches (18.2 W x 15.5 H x 8.9 D cm)
Weight2 lbs (0.9 kg)
STANDARD CALIBRATIONS
Range0-50 ppm CO
Alarm LevelsAlarm 15 ppm CO, user adjustable
Alarm 210 ppm CO, user adjustable
Alarm 320 ppm CO, user adjustable
Alarm AdjustmentAll three alarms are user adjustable between 1 to 50 ppm

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