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Linear Heat Detector Comparison Chart
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Feature
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Protectowire Digital
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Analog Integrating (1)
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Continuous
Thermocouple (1)
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Maximum Zone Length
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Up to 5,000 FT. (1,524 m)
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1,500 FT. (457.2m)
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2,000 FT. (609.6m)
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Alarm Point Location
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YES
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NO
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NO
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Multiple Alarm Points Within Zone
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YES
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NO
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NO
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Underwriters Laboratory (UL) Listed
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YES
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NO
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NO
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Factory Mutual (FM) Approved
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YES
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YES
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NO
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Alarm Point Setting Unaffected by Changes in Ambient Temperature
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YES
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NO
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YES
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Compatible with Standard Initiating Devices (Manual Stations, Contact Devices and Smoke Detectors)
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YES
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NO
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NO
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Pre-Alarm Capability
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YES
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YES
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YES
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Approved for use in Hazardous Locations
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YES
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YES
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? *
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Easy to Splice / Terminate
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YES
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NO
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? *
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Maximum Alarm Temperature
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356°F (180°C)
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500°F (260°C)
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350°F (177°C)
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Expected Service Life
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Current Installations Greater than 20 Years
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? *
|
? *
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Requires On Site Calibration
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NO
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YES
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NO
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Size
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5/32 in. (4 mm)
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0.09 in. (2.28 mm)
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1/8 in. (3.175 mm)
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Annual Maintenance per NFPA 72, 1999
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Minimal
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Heat Test - Must alarm within 1 minute
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? *
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Accuracy dependent on length
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NO
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YES
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NO
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Designed and Manufactured by and ISO-9001 Registered Company
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YES
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? *
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? *
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Feature
|
Protectowire Digital
|
Analog Integrating (1)
|
Continuous
Thermocouple (1)
|
(1) - Based on available information at the time of publication 4/13/01
? * - Information unknown or not available
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