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manual abstract
1 - MCT-441 ENGLISH 1. INTRODUCTION The MCT-441 is fully supervised indoor, easy-to-install, PowerCode Gas detector. The MCT-441 is a natural gas detector designed to send an alarm when Methane gas is detected. The detectors can be used in a house, apartment, caravan, mobile home or yacht. The detectors are powered by 220 VAC. An internal Lithium battery is used for AC power failure reporting only (the battery does not power the detector). The detector can send the following messages to the alarm system control panel: Gas alarm, gas sensor failure , AC power failure and low battery voltage . The MCT-441 is designed for wall mounting and should be placed in a location where gas presence, for example leakage, is probable. Upon gas detection, an audible buzzer is sounded and the built-in transmitter transmits a digital message, composed of the detector's PowerCode ID followed by status messages. Alarm and other data are thus forwarded to the alarm system. A periodic supervision message is transmitted automatically (see specifications) to inform the alarm system at regular intervals, of the unit’s active participation in the system. The MCT-441 has a 24-bit ID code, randomly selected in the factory from over 16 million possible combinations. This code is therefore unique and virtually impossible to reproduce. Compatible PowerCode receivers are designed to "learn" specific IDs and respond only to them. 2. SPECIFICATIONS Compatibility: Compatible with all PowerMax alarm system family (PowerMax / PowerMax+ / PowerMax Pro / PowerMaxComplete), MCR-304 receiver, MCR-308 receiver or any other PowerCode alarm system. Gas Type: Methane (CH4). Frequency (MHz): 433.92, 868.95, 869.2125 or other frequency according to local requirements. Transmitter's ID Code: 24-bit digital word, over 16 million combinations, pulse width modulation. Overall Message Length: 36 bits. Audible Signal Volume: At least 85 dB at a distance of 3 m. Sensitivity: 8% ± 3% of the gas Lower Explosion Limit (LEL). Supervision: Signaling at 15 minute intervals or according to local standards. Important: The detector will not operate without 220V power connection. In the event of a power failure or where the detector is not connected to a power source, an AC failure message is sent to the control panel (will be received by PowerMax+ version 3.0 and up only). Therefore, when installing the MCT-441, to work with PowerMax or PowerMax+ revision 2.9 and down, it is highlyrecommended not to disable the PowerMax/PowerMax+ "supervision" function (See "Define Control Panel Parameters" in the PowerMax Programming Guide or PowerMax+/PowerMax Pro/PowerMaxComplete Installer Guide). ALARM REPORTS: Gas alarm Every 20 sec. for the first 3 minutes. Every 3 min. for the next 27 minutes. Alarm stops after 30 min., or if the detector goes into "alarm restore". AC failure 20 seconds after an AC failure occurrence, the AC failure will be reported - will be received by PowerMax+ (version 3.0 and up) / PowerMax Pro / PowerMaxComplete. The report will be repeated every 20 seconds for 3 minutes. Trouble message When gas sensor fails, failure message will be received only by PowerMax+ (version 3 and up) / PowerMax Pro / PowerMaxComplete. Relative Humidity: 10% - 90% Power Source: 220-240V ~ 50 Hz Battery: 3V Lithium battery, type CR123A, Panasonic or Sanyo Battery Life Expectancy: 5 years (for typical use, in room temperature) Operating Temperature: 0°C to 45°C (32°F to 113°F). Dimensions: (LxWxH) 155 x 80 x 58 mm (6-1/8 x 3-1/6 x 2-5/16 in.). Weight (including battery): 370 g (13 oz). Standards: Meets requirements of EN 50194, EN 60950, EN 61010-1, EN 50270, EN 300220, EN 301489. 3. INSTALLATION 3.1 Preparing the Installation A. The MCT-441 gas detector plugs directly into a standard 220VAC household switchable outlet (by a switch or circuit breaker). Note: The installation must comply with the local authority electrical standards. B. The ventilation slots must not be blocked and the unit must be kept free of dust. C. A proper airflow must be maintained through the unit to obtain an air sampling of that area of the house where the sensor is situated. D. The unit must be installed at least three feet from any gas appliance to eliminate false alarms but should not be placed over 20 feet from such appliances. E. Install the unit away from any sources of vapor such as alcohol, liquor, vehicle exhaust, hair spray, cleaning agents, deodorants, paint, fluorocarbons, or industrial solvents because vapors from these substances will trigger false alarms. F. Do not install the unit directly above cooking appliances, directly above a sink, or adjacent to extractor fans. Important! • When the alarm sounds, immediately find out the cause and remedy it or evacuate the building • Ventilate the area by opening doors and windows • Immediately extinguish any flames or pilot lights • Do not operate any electrical devices • Determine the source of the gas. Seek a qualified technician or call your loc...