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CO-Guard Respiratory Air Line Monitor

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Calibration Equipment, Replacement Parts and Accessories are available. Call us for More Information.
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CO-Guard & CO-Guard-MOS
Respiratory Air Line Monitors


Compact Compressed Air Line Carbon Monoxide Monitor/Alarms

 

  • Compact Design

  • Digital Display

  • User Programmable Alarms & Relays

  • 4-20 mA Output

  • RS-485 Digital Communication Capability

  • 100-240 VAC, 24 VDC Power Options

  • "Intelli-Cal" Push-Button Calibration Procedure

  • 3 Levels of Alarms

  • Protected Maintenance Functions

  • Audio and Visual Alarms

  • High-Integrity Polycarbonate Enclosure

  • High-Capacity Relays

  • Flow Meter for Confirmation of Airflow (CO-Guard)

 

CO-Guard is a compact, easy to install and operate, compressed air line CO monitor. The instrument incorporates a rotameter for confirmation of proper airflow, a backlighted digital display and a highly specific electrochemical carbon monoxide sensor for trouble-free and reliable operation. CO-Guard is designed for use in a wide variety of applications ranging from automotive, and similar, paint spray operations to wood finishing. This monitor can be used in virtually any commercial or industrial process that requires CO monitoring of compressed breathing air for personnel working in such operations.


CO-Guard-MOS incorporates a rugged, long-life, metal oxide semiconductor (MOS) sensor and hydrocarbon filter and is designed for installation in non-hazardous (not potentially explosive) locations, and is suitable for use in a wide variety of applications.

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Specifications

Range:

0-50 ppm


Alarm Levels:

CO-Guard:
Alarm 1: 5 ppm CO, user adjustable
Alarm 2: 10 ppm CO, user adjustable
Alarm 3: 20 ppm CO, user adjustable

CO-Guard-MOS:
Alarm 1: 10 ppm CO, user adjustable
Alarm 2: 20 ppm CO, user adjustable
Alarm 3: 35 ppm CO, user adjustable


Alarm Adjustment:

All three alarms are user adjustable


Audible Alarm:

105 dB at 30 cm (12 inches)


Visual Gas Alarm:

3 Red LEDs


Visual Power/Fault:

Green/Red LED


Display:

8 Character, high contrast dot matrix LCD with backlight


Sensor:

CO-Guard: Electrochemical
CO-Guard-MOS: Metal oxide semiconductor (MOS)




Temperature:

CO-Guard: 32° to 104°F (0° to 40°C)
CO-Guard-MOS: 32° to 122°F (0° to 50°C)


Outputs:

Relays: 4 Form C, 10A SPDT contacts, 2 gas alarms and 1 fault
Analog: 4-20 mA
Digital: RS-485 Modbus

Power:
100-240 VAC and/or 24 VDC, 15W

Power Connection :
Supplied with line cord and strain relief for 0.20 to 0.35 inch diameter cable

Enclosure:
Polycarbonate

Size, Instrument Only:
7 x 5 x 3 inches (18 x 13 x 8 cm)

Weight, Instrument Only:
2 lbs. (0.9 kg)



For detailed information including drawings with external and internal features, connections and regulator assemblies, and ordering information see product literature:
CO-Guard Literature
CO-Guard-MOS Literature
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