UniPOS 71CNG Manual

UniPOS
Gas Detector – 71CNG
,
UniPOS
,
i!
Before use, read
the instructions carefully!
Addressable Natural Gas Detector
Type :71CNG
TECHNICAL SPECIFICATION
ENGLISH
GENERAL DESCRIPTION
The 71CNG detector (g.1) is applicable for detection of natural gas (methane) in the protected area. The status of the detector is
indicated with LEDs and sounder.
The 71CNG detector has a signal (communication) and
external power interface lines.
The signal loop (communication) interface line is compatible with the IFS7002 re control panel through the UniTalk private protocol.
The signal loop (communication) interface power supplies the communication, micro-controller, detection schematics of the device.
In order to be fully functional, the 71CNG device requires additional
external power supply in the range (18 – 30) Vdc, which supplies
the sounder and Led indication and heating of the sensor.
The signal loop (communication) interface is protected with a short-circuit isolator.
Both power supplies are galvanic-separated and must not be with common ground. The common ground will not damage the
standalone operation of the 71CNG, but will aect the communication between the detector and the IFS7002 control panel.
TECHNICAL DATA
Maximum number of 71CNG detectors in the IFS7002 signal loop: 125 pcs.
Supply voltage :
- signal loop (15-30) V DC
- external power
supply (18-30) V DC
Current consumption in Duty mode:
- signal loop < 350µA
- external power
supply 55 mA
Current consumption in Alarm mode :
- signal loop (2±1)mA
- external power
supply 75 mA
Sound level 100dB@1m
Temperature: from minus 5°С to 40°С
Degree of protection IPX2D
Relative humidity resiatance (no condensation) ≤ 95%
Dimensions (134x36x112)mm
Weight 0.115кg.
Construction: ABS
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ATTENTION !!! OPERATION TO BE DONE IN CASE OF ALARM:
– Put out any ames.
– Close the gas tap or the cylinder.
– Do not turn any electrical consumers on or o.
– Open all windows and doors to increase ventilation.
– If alarm stops it is necessary to discover the cause and act on consequence.
– If the alarm continues and the cause is not evident or possible to eliminate leave the room
immediately and call the emergency service.
Fig.1
CONTROL AND INDICATIONS
The 71CNG detector's functions are indicated through the following LEDs (g1 pos.1):
green - indicates working power supply status of the detector
- If the green LED is continuous On - there is properly working power supply
yellow – indicates fault and service status.
- If the yellow LED is blinking - the gas sensor is in heating (warm-up) procedure for 120 seconds
- If the yellow LED is continuous On - there is fault in the 71CNG detector
red and yellow – indicates duty and verication mode
- If both LEDs are continuous On - a service command is required in the IFS7002 control panel (Menu setup>Initializa-
tion>Check)
- If both LEDs are blinking simultaneously in a period of 16 sec. - there is fault in the 71CNG detector
red – indicates alarm
- If the red LED is continuous On - the methane level is over the calibrated trigger level in the device
and
INDICATES FUNCTIONS
Gas Detector – 71CNG
INSTALLATION
To mount the 71CNG detector,
please remove front panel.
The detector should be installed vertically at the wall – LEDs indicators are in the top-side
of the cabinet, the inlet openings are on the bottom side of the cabinet.
-5°С +40°С
The gas detector must not be mounted:
– Directly above cooking appliances;
– Directly above a sink;
– Adjacent to extractor fans;
– In any outside location;
– Where the environment conditions are outside
of operational specication.
Manufacturer: UniPOS Ltd., 47 San Stefano Street, Pleven 5800, Bulgaria, http://www.unipos-bg.com Manufacturer: UniPOS Ltd., 47 San Stefano Street, Pleven 5800, Bulgaria, http://www.unipos-bg.com

UniPOS
Gas Detector – 71CNG
,
UniPOS
,
Gas Detector – 71CNG
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+ + +
- - -
+-
EE
Signal Loop
9 10
+ -
External power
supply
wiring of signal cables
The 71CNG must be installed on an opposite wall of the possible source of danger, i.e. ovens, boilers or other.
The detector should not be installed behind barriers which would interfere with immediate detection of gas.
10 cm. - min.
15 cm. - мах.
Distance above highest
Window or door opening - min.10 cm
Distance to ceiling - max.15 cm
The built-in the CNG detector
semiconductor sensor component
is with lifetime of 5 years.
After the detector is installed
then the maintenance company
must take care to stick and mark
the detector with provided label
for operation period.
The semiconductor sensor component/technology does not stand a gas sensing over 40% of the LEL.
A gas with methane saturation over 40% of the LEL will cause damage of the sensor.
An instance of gas over the 40% LEL reduces the life of the semiconductor sensor.
GAS TESTER
TEST
A test of the CNG detector is done with a simulation of gas presence,
emitted from a calibratedtest equipment.
EXPLOITATION
Never clean the device with chemical products.
If necessary to clean then disconnect the cables
and use humid towel.
CLEANING DETERGENT
5
YEARS
BE CAREFULL !
Test mode
The 71CNG have test button “T” - dedicated for test trigger
of the led and sound indication of the 71CNG detector.
The indicators are activated as long as the button is pressed and holded.
*It is recommended to test LEDs and audible indication after installation of the detector.
The 71CNG detector must be installed
and maintained from a competent personnel.
The 71CNG is compatible with the
EN50194-1 standard on the following
trigger level – 5000 ppm CNG (methane)
in air, saturation 10% LEL
(Low Explosion Level)
of the protected area.
GAS
FIRE NO FIRE
≥ 5, 000 ppm CNG <
Manufacturer: UniPOS Ltd., 47 San Stefano Street, Pleven 5800, Bulgaria, http://www.unipos-bg.com Manufacturer: UniPOS Ltd., 47 San Stefano Street, Pleven 5800, Bulgaria, http://www.unipos-bg.com
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71CNG (Methane)
Replace