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Fabricar: Universal Security Instruments Tamaño del archivo: 386.89 kb Nombre del archivo: Idioma del manual:

A microchip inside the unit stores each reading and remembers the levels it has been exposed to over time. The unit goes into alarm mode when it has been exposed to a "critical" level. • Test the alarm once a week. If the alarm ever fails to test correctly, have it replaced immediately. If the alarm is not working properly, it cannot alert you to a problem. • This combination CO and Natural Gas Alarm is intended for residential use and is not suitable for use in hazardous locations as defined in the National Electrical Code. • This unit must be powered by a 24 hour circuit. Be sure the circuit cannot be turned off by a switch, dimmer or ground fault circuit interrupter (GFCI). Failure to connect this unit to a 24 hour circuit may prevent it from providing constant protection. • This alarm must have AC or battery power to operate. If AC power fails and the battery is dead or missing, the alarm cannot operate. • The alarm will check for the presence of gas at the sensor less frequently when powered by the backup battery. Gas could be present during the period between checks without going into alarm, especially during a condition that results in a rapid buildup of gas. • This product is intended for use in ordinary indoor locations or family living units. It is not designed to measure CO levels in compliance with Occupational Safety and Health Administration (OSHA) commercial or industrial standards. Individuals with medical conditions which may make them more sensitive to carbon monoxide may consider using warning devices which provide audible and visual signals for carbon monoxide concentrations under 30 ppm. For additional information on carbon monoxide and your medical condition, contact your physician. Page 5 IMPORTANT! The battery backup is designed to provide short-term emergency power to the CO and Gas Alarm. Actual backup time depends on the strength (freshness) of the battery. The battery backup will not work unless a good battery is properly installed. When the alarm utilizes battery backup power, the natural gas sensor will operate the alarm and will sample less frequently to extend battery life. Natural gas could be present during this period between samples without the alarm sounding, especially if there is a rapid buildup of natural gas. UNDERSTANDING YOUR ALARM NORMAL OPERATION: In normal operation, the alarm will blink the green LED off once approximately every 20 seconds.On Models MCND401CN, MCND401LCN, MCND601CN and MCND601LCN, the screen will display three dashes "- - -" LOW BATTERY ALARM: If the alarm chirps once approx. every 40 seconds, please verify that the battery activation pull tab has been completely removed, the battery polarity is correct and the battery terminals are making contact with the alarm contacts in the battery compartment. If the battery continues to chirp, replace the 9 volt battery. CO ALARM: The alarm signal is 4 beeps, 5 second pause, repeat. The green LED turns off when the 4 beeps start. The red LED blinks in sync with the cycle of 4 beeps. The screen will indicate the current CO readings if higher than 40 ppm on digital display models. GAS ALARM: The alarm signal is 1 beep, 1 second pause, repeat. The green LED blinks off. The blue LED blinks in sync with the horn beep every second. The screen will display "gas" on digital display models. NUISANCE ALARM: If the horn signals for no apparent reason and no obvious hazard is present, please verify that the alarm is mounted in the correct location. Reset the alarm as instructed in the Operational Summary. CO ALARM LATCHING LED INDICATOR: The alarm had previously detected CO and had alarmed. The red LED is off and blinks on every 5 seconds until reset. Follow the reset instructions to remove the latching LED (see below). GAS ALARM LATCHING LED INDICATOR: The alarm had previously detected GAS and had alarmed. The blue LED is off and blinks on every 5 seconds until reset. Follow the reset instructions to remove the latching LED (see below). TROUBLE / SERVICE ALARM: Periodically, the alarm measurement circuit is tested. If an error is detected, the alarm will sound 3 chirps approx. every 20 seconds . Replace the alarm. END-OF-SERVICE LIFE ALARM: When it is time to replace your alarm, which is approximately 7 years of operation from initial power up, the alarm will sound 2 chirps approx. every 20 seconds. The alarm signal cannot be reset - the alarm should be replaced immediately. RESET THE ALARM LED's: Press the TEST button for 2 seconds and then release. This will clear the alarm LED's and clear the SILENCE mode. RESET THE PEAK CO MEMORY (digital display models only): Press and hold the RESET button for 5 seconds until the peak level is cleared. The display screen will display "000" when the peak CO level is reset and then return to "- - -" IF YOUR CO AND GAS ALARM SOUNDS WHAT TO DO IF CARBON MONOXIDE IS DETECTED: If you hear the alarm horn sound 4 beeps, a 5 second pause (and then repeat),...

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