Macurco CX-xx Manual (Rev-1.0) Eng
2.2 Do NOT use for
The CX-xx is not intended for use in hazardous locations or industrial applications such as refineries, chemical plants,
etc. Do not mount the CX-xx where the normal ambient temperature is below 0°F or exceeds 125°F (-18°C or above
52°C). The CX-xx mounts on a type 4S electrical box supplied by the contractor. Do not install the CX-xx inside
another box unless it has good air flow through it.
This equipment may not function effectively below 0°F or above 125°F (-18°C or above
52°C). Using the detector outside of this temperature range may adversely affect
product performance.
2.3 Features
ETL LISTED Certified to CSA C22.2 No 61010-1, Conforms to UL Std. 61010-1
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Low-level meter capable of displaying from 0-200 ppm of CO and 0-20 ppm of NO
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The CX-xx meets the Uniform Building Code for enclosed garages and meets OSHA standards for CO and NO
exposure
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Selectable fan and alarm relay activation
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5 A SPDT fan relay controls starters of exhaust fans
0.5 A N.O. or N.C. alarm relay connects to warning devices or control panels
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4-20 mA Current Loop
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CX-xx mounts on a standard 4x4 electrical box and becomes cover for the box
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Supervised system: any internal detector problem will cause the fan & Alarm relay to activate
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Calibration kit is available. One screw allows access for calibration or gas test
2.4 Specifications
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Shipping Weight: 1 pound (0.45 kg)
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Size: 4 1/2 x 4 x 2 1/8 in. (11.4 X 11.4 X 5.3 cm)
Color: White or Dark gray
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Connections: plugs/terminals
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Mounting box: (not included) 4x4 electric
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Fan relay: 5 A, 240 VAC, pilot duty, SPDT, latching or non-latching
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Fan relay actuation for CO: selectable at dIS (disable), 15, 25, 35 (default), 50 or 100 ppm
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Fan relay actuation for NO
3.0, 3.2, 3.5, 3.7, 4.0, 4.2, 4.5, 4.7, 5.0 ppm
Fan Delay Settings of 0, 1, 3 (default), 5 and 10 minutes
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Fan Relay Minimum Runtime settings are 0 (default), 3, 5, 10 or 15 minutes
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Fan relay latching or not latching (default) selectable
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Alarm relay: 0.5A 120 V, 60 VA
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Alarm relay actuation: selectable N.O. (default) or N.C.
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Alarm relay settings for CO: dIS, 50, 100, 150, and 200 ppm (default)
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Alarm relay settings for NO
Current Loop 4-20 mA, selectable to 'bAS' (default), 'EnH', OFF
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REV – 1.1
WARNING
: selectable at dIS (disabled) 0.5, 0.7, 1.0, 1.2, 1.5, 1.7, 2.0, 2.2, 2.5 (default), 2.7,
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: dIS, 1, 2, 3, 4, 5 (default), 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 ppm
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