The Detector is not field-repairable due to the meticulous alignment and calibration of the sensors and the respective circuits. Do not attempt to modify or repair the internal circuits or change their settings, as this will impair the system's performance and void the Ansul Incorporated product warranty.
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TECHNICAL FEATURES 7-1-07 Page 2 REV. 2 TECHNICAL FEATURES • DETECTION RANGE: up to 33.0 ft (10 m) for a 1 ft (0.1 m ) fire. • ULTRA HIGH IMMUNITY TO FALSE ALARMS: (see para. 2.3). • ADVANCED DIGITAL PROCESSING OF THE DYNAMIC CHARACTERISTICS OF FIRE: Flickering, Threshold correlation and Ratio.
PERFORMANCE 7-1-07 Page 4 REV. 1 REFLECTOR STATUS LED IR SENSOR 3.9 IN. (98.6 NO. 10-32UNF-2B 4 PL. IR SENSOR 3.9 IN. (98.6 mm) DIA .275 IN. (7 mm) IR SENSOR 2 PL. 4.3 IN. (110 mm) VIEW A 2.6 IN. 2.5 IN.
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PERFORMANCE 7-1-07 Page 5 REV. 2 Other fuels The detector will react to other types of fires as follows: PAN FIRE SIZE: 1 ft /(0.1 m MAXIMUM WIND SPEED: 6.5 ft/sec (2 m/sec) MAXIMUM RESPONSE TIME: 10 sec Table 2.1.2: Sensitivity to other fuel types TYPE OF FUEL % OF MAX.
PERFORMANCE 7-1-07 Page 6 REV. 1 2.3 FALSE ALARM PREVENTION The detector will not provide an alarm or a warning signal as a reaction to the radiation sources specified below. NOTES: IAD = Immune at Any Distance All sources are chopped from 0 to 20 Hz. Table 2-3.1: Immunity to False Alarm Sources RADIATION SOURCE IMMUNITY DISTANCE FT (M)
OPERATION 7-1-07 Page 7 REV. 1 OPERATION 3.1 VISUAL INDICATIONS One 3-color LED-indication is located in the detector front window: DETECTOR STATUS LED COLOR LED MODE Fault, BIT Fault Yellow 4 Hz flashing Normal Green 1 Hz flashing Warning 2 Hz flashing Alarm Steady STATUS LED...
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OPERATION 7-1-07 Page 8 REV. 2 Table 3-2.1: Output Signals versus Detector State DETECTOR COLOR FLASHING ALARM FAULT STATE RELAY RELAY NORMAL Green 1 Hz WARNING 2 Hz ALARM (3) Steady MANUAL/AUTOMATIC BIT FAULT (2) Yellow 4 Hz WARNING AT BIT FAULT 2 Hz ALARM AT BIT FAULT Steady...
ELECTRICAL SPECIFICATIONS 7-1-07 Page 9 REV. 2 ELECTRICAL SPECIFICATIONS 4.1 OPERATING VOLTAGE: 18-32 VDC 4.2 POWER CONSUMPTION: Max. 25 mA in Stand-by Max. 50 mA in Alarm 4.3 ELECTRIC INPUT PROTECTION: The input circuit is protected against voltage-reversed polarity, voltage transients, surges and spikes according to MIL-STD-1275. POWER (18-32VDC) RETURN (–) 4-20mA IN –...
MECHANICAL SPECIFICATIONS 7-1-07 Page 10 REV. 1 MECHANICAL SPECIFICATIONS 1. Enclosure Stainless steel 316L electro chemical and passivation coating. 2. Water and dust tight NEMA 250 type 6p. IP 66 and IP 67 per EN60529 3. Electronic Modules Conformable coated 4.
The detector shipping assembly, Part No. 432480, contains a 20/20MI-32-S-F detector, detector bracket, and associated hardware. See ANSUL CHECKFIRE SC-N Installation Manual, Part No. 432522, for detailed mounting information. 7.5 INSTALLATION Refer to ANSUL CHECKFIRE SC-N Installation Manual, Part No. 423522, for detailed installation instructions.
OPERATING INSTRUCTIONS 7-1-07 Page 13 REV. 1 OPERATING INSTRUCTIONS 8.1 SCOPE The following instructions are designed to obtain optimal performance from the detector over its life cycle. CAUTION Disconnect automatic extinguishing system actuator(s) from system before powering up detector(s). Failure to do so may result in unwanted discharge. 8.2 POWER-UP/FUNCTIONAL TESTING 1.
MAINTENANCE INSTRUCTIONS 7-1-07 Page 14 REV. 1 MAINTENANCE INSTRUCTIONS 9.1 SCOPE This chapter deals with preventive maintenance, describes possible faults in detector operation and indicates corrective measures. Ignoring these instructions may cause problems with the detector and may invalidate the warranty. Whenever a unit requires service, please contact the manufacturer or its authorized distributor for assistance.
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ANSUL INCORPORATED ONE STANTON STREET MARINETTE, WI 54143-2542...
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