WIZMART GAS DETECTOR
Contents
1. produce a mixture that can be combustible and explosive if it is ignited by a spark or flame That s why we should be more cautious to any accidental leaks of natural gas or liquefied gas in a continuous manner The sensor vent port of the gas detector would allow natural gas to enter the sensor chamber to be monitored by the sensing circuit built inside LOCATIONS WHERE WE NEED TO INSTALL GAS DETECTORS Liquefied gas is heavier than air the leak of such gas collects near to the floor or in the lowest levels of rooms To detect a dangerous concentration of liquefied gas you should install your detector under 30 cm above the floor and less than 4 m of horizontal distance to the gas appliance in the same room Natural gas is lighter than air therefore it collects in the ceiling of rooms In order to reach effective sensibility of natural gas leaks you should install your gas detector as close to the ceiling as possible i e under 30 cm from the ceiling and less than 8 m of horizontal distance away from gas burner or a kitchen stove in the same room as shown in Figure 1 Gas detector can only perform sensitively to the same location where the gas appliances exist Since the unusual gas leaks may occur in other locations in your home it is strongly recommended that gas detectors are installed in the areas where a gas burner or a kitchen stove is used such as kitchen living rooms bed rooms garage and basement see Figure 2 F2. WIZMART GAS DETECTOR NB 983 SERIES USER S MANUAL INTRODUCTION Wizmart s NB 983 NG and NB 983 LG Series Gas Detector is effective for detecting any buildup of natural gas and liquefied gas in your residence The NB 983 gas detectors are engineered to perform the following features 1 Easy to install It allows connecting to fire control panel or security monitoring system 2 Monitoring any accidental leaks of natural gas or liquefied gas in a continuous manner 3 Giving a loud alarm 70 dB when it detects a buildup of natural gas 4 Self testing its operative functions continuously 5 Offering a 5 year warranty for the natural gas sensing unit GASEOUS FUEL IN OUR DAILY LIFE Either natural gas or liquefied gas has become one of the major energy sources for our modern life which has been found its numerous applications in many sectors such as household business industrial uses and heating systems in the buildings At home we use gas for cooking drying heating and other purposes However any accidental gas leaks into the air may lead to possible hazards such as fire and explosion which is definitely a potential threat to the lose of our lives and household properties Most likely sources of leaks come from natural gas appliances such as heaters stoves refrigerators and furnaces Gas leaks from outside or below ground level can also seep into your home However as natural gas builds up it mixes with oxygen to
3. e an electrical fan or an air ventilator to disperse the leaked gas Instead you can disperse the leaked gas by stirring a hand fan 4 Avoid anything involved with any source that may incur fire Do not turn on electrical light or strike a match to prevent any potential explosion 5 If any gas leak is found or detected use duct tape or wet cloth to wrap the leaking pipes to reduce or stop ongoing gas leak 6 Inform the Gas Company or your gaseous fuel supplier You may report to the fire department about the accident as well Specifications Model Gas Operating Min Gas Alarm Operating Power Output Monitored Voltage Levelfor Sounds Temp C Consumption Voltage Alarming 24 Voc Less 570dB 10 C With Relay NB Natural Gas or than 1 4 with Auto 50 C 2W Output Dry 983 LEL reset connection NG 12 Voc output see 24Voc Less gt 70dB 10 C With Relay NB Liquefied or than 1 4 with Auto 50 C 2W Output Dry 983 Gas LEL reset connection LG 12 Voc output WARNING AND LIMITATION Note that NB 983 series gas detector is not supposed to be used as smoke detector or fire alarm In addition this detector should not be installed in a danger area as defined by National Electrical Code A gas detector will operate normally under regular power supply therefore it will not perform at any situation when power outage occurs WARRANTY INFORMATION Under the normal opera
4. he detector head into the base in clockwise direction A e a Figure 4 Alignment of detector head and its base MAINTENANCE OF GAS DETECTORS A gas detector constantly monitors any gas leaks under its normal operational conditions The following maintenance procedures for gas detectors will assure its desired performance 1 Use a vacuum cleaner to clean the dust around the vent holes of gas detector cover 2 Carry out a regular or weekly test of gas detectors SENSOR Figure 5 Front cover of detector head TYPES FOR DETECTOR SIGNALING The gas detector has to be warmed up for at least 10 minutes after being energized then the test procedure can be followed There are three types of detector signaling 1 Green LED light signal indicates the detector in the normal monitoring condition 2 When the gas leak is detected green LED light will change into flashing of red LED light as accompanying the alarm sounds 3 If the detector is not in normal operation the buzzer will sound once every minute to indicate that the malfunction is detected by the built in self monitoring circuitry ACTIONS TO BE TAKEN WHEN ALARM OCCURS We should take the following actions immediately when alarm occur 1 Turn off the valves of gas burners or gas tanks 2 Slowly open windows Do not open windows too fast or the possible sparking may occur 3 Do not us
5. igure 1 Suggested installation positions for NB 983 series gas detectors Figure 2 Locations for installing gas detectors in your home WIRING DIAGRAM FOR NB 983 SERIES GAS DETECTORS Figure 3 shows the wiring diagram for NB 983 series gas detectors LAST DETECTOR FIRST DETECTOR BASE BASE FIRE CONTROL PANEL POWER 391430 40 GNA INSTALLING THE BASE OF DETECTOR 1 All the wires in the base compartment should be flattened and are not touched to any connectors to ensure that the detector head be smoothly fastened to the base 2 When using the jump wires to check the connectivity for each gas detector in the circuit loop e g connecting point 2 and point 3 with a jump wire as shown in Figure 3 be sure to remove all the jump wires before attaching the detector head onto the base 3 Be sure that the components used in the circuit loop as shown in Figure 3 should be coupled up with those components used in the transceiver circuitry of the control panel 4 The base is allowed to be installed within an available wiring box including octagon box 3 3 5 or 4 circular box 3 and rectangular box 4 long without using any other additional mechanical adapters INSTALLING THE DETECTOR HEAD 1 Align up the position of head to the base see Figure 4 2 Screw t
6. tion conditions the manufacturer provides five year warranty for the sensor head of gas detector and one year warranty for other parts for repairing without charge Part and labor charge will be required after the warranty is expired wizMart WIZMART TECHNOLOGY INC 2F Building B 148 Qi Xin Road Jiang Dong Hi Tech Park Ning Bo City 315040 Zhe Jiang China
Download Pdf Manuals
Related Search