JSUS ELECTRONIC TECHNOLOGY CO.,LIMITED |
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Model:JS-GD51
PRODUCT INTRODUCTION
This product is an indoor combustion gas detector with high stability , hereinafter called detector, used for combustion gas leak detection. It uses highly stable semiconductor gas sensor with features of stable performance and low drift of sensitivity. When it senses combustion gas leak that reaches the set alarm level, it will give out alarm sound with red LED flashing. The detector is applied in indoor places where combustion gas leaks possibly happen.
FEATURES
● Detects Natural Gas/LPG
● Celling Mounted
● Highly Stable Semiconductor Gas Sensor
● Adopts MCU Processing
● Manual Test/Auto Reset Functions
● Auto Check Malfunction
● High Capacity Relay (3A/250V)
● SMT Manufacture Technology, High Stability
● Comply to GB15322.2-2003
Model NO. | JS-GD51NS-AC | JS-GD51NVS-AC | JS-GD51LC-AC | JS-GD51NC-DC | JS-GD51LC-DC | |
| Operating voltage | AC110V or 220V | DC12V-24V | |||
| Gas species | Natural gas or LPG | ||||
| Sensor | Semiconductor | ||||
| Drivable accessaries | N/A | Solenid valve | N/A | N/A | N/A |
| Alarm level | 6%LEL(±3%LEL) of Natural gas | ||||
| Alarm output | Sound & LED flash alarm | ||||
| Sound level | ≥75dB/m | ||||
| Installation | Ceiling mounted | ||||
| Working environment | -10℃~+50℃,(≤95%RH No congelation) | ||||
| Dimension | Φ122*40mm |
INSTALLATION
1. First identify your gas heavier or lighter than air. Heavier
gases: LPG etc. Lighter gases: natural gas, marsh gas, artificial
coal gas etc.
2. Choose a suitable installing position
according to gas specific gravity. Detecting heavier
gases, installation height 0.3-1.0m from floor ,
semi-diameter to gas source <1.5m; Detecting lighter gases,
installation height 0.3-1.0m from ceiling, semi-diameter to gas
source < 1.5m (refer to the following image).
3. Fix the attached base into a
wall firmly with screws and hang the
detector.
4. Do not make it close to gas stoves when
installing at home in case it is roasted by flame. Neither places
with heavy oil or smoke that may cause false alarms or block the
gas convection holes and influence the detector sensitivity. Also
it is can not be installed near to exhaust fans, windows, doors,
and places with great vapor in bathrooms.
5. Connect the wires correctly according to the wire harness instructions. All wiring and installation must accord with the National and Local laws and criteria. Improper connection will cause the detector not alarm while gas leaking.
OPERATION INSTRUCTION
1. WIRING
Confirm the detector working voltage and
output type by the label in the detector reverse.
DC type detector: 9-24V DC.
AC type detector: 220V AC.
A 5-PIN wire harness is
attached in the gift box.
NOTICE:
The detector can not
have Relay output and Pulse output
for Solenoid valve simultaneously. Check the reverse
label for the detector output type and pay attention to
connect the wires correctly as per the connection
instruction.
2. FUNCTION
2.1 Connecting the power, the power LED constant green on. fter the
buzzer gives out a Di sound, the circuit enters into warm-up
state. The red LED and yellow LED flash alternately
during warm-up and stop in about 3 minutes, which indicates
that the detector enters into normal working state. Test is
forbidden during warm-up time.
2.2 When any combustion gas leak happens and reaches the
alarm level, the alarm LED flashes red and meanwhile the buzzer
gives out “Di...Di” sound. If the detector has output function, the
relay output will be activated or pulse signal will be sent
out to shut off the connected solenoid valves .
2.3 If an inside sensor failure occurs, the yellow LED
constant on and the buzzer long beeps. Switch off the power and
contact your dealer for maintenance. Do not take the detector
apart privately to prevent electrical shocks.
3. TESTING
3.1 The detector has a self-test button for checking if the
LED and the buzzer can work normally. When pressing the test
button, the red & yellow LED flashes
alternately and the buzzer gives out alarm sound and the
output is activated if with the function.
3.2 It is forbidden to test with a lighter directly toward the gas
convection holes. This will cause damage to the inside
sensor. Instead, gather the gas
from the lighter into an empty plastic mineral water
bottle and release the gathered gas toward the gas convection holes
for testing.
FAILURE REASONS & SOLUTIONS
ALARM TREATMENTS
When the concentration of natural gas or LPG in ambient air reaches
or exceeds the alarm level, the detector will enter into constant
alarm state. Below treatments are advised:
1. Shut off pipe valves.
2. Do not plug or unplug electrical appliances.
3. Open windows to circulate air.
4. Inspect the gas leak reason and notify related
departments in time to deal with the leak by
professionals. If it turns out a false alarm, check if
the installation position is improper.
NOTES
1. The detector is for combustion gases detection. It
can not be used to test CO etc. poisonous gases.
2. Correct power supply must
be provided and the wires must be
connected right. It can not work without normal
power supply.
3. Mild heat-up in housing surface is normal at
working time.
4. Do maintenance as per this manual
Periodically.
5. Vacuum the dirt in the detector surface every
month.
6. Do not use cleansers or
solvents to clean the
detector. Chemicals may cause permanent damage or
transient pollution to the sensor.
7. Do not spray air-freshers, hair gels,
paints or other aerosols near the detector.
8. To assure the detector sensitivity, the detector
should be inspected by a profession every
year. If it fails to work, repair or replace the
detector asap.
9. The service life of the detector semiconductor gas
sensor is 5 years. Replace the detector immediately when the
service life expires.
10. The detector can reduce accidents
happening, but can not guarantee 100% safety. For
your safety, besides proper usage of the detector, pay
attention to build up safety
conscious and take preventive measures in daily life.
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