UniPOS 71CNG Technical Specification

UniPOS
Addressable Natural Gas Detector
TECHNICAL SPECIFICATION
ENGLISH ! i

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:
Supply voltage :
- signal loop
- external power supply
Current consumption in Duty mode:
- signal loop
- external power supply
Current consumption in Alarm mode :
- signal loop
- external power supply
Sound level
Temperature:
Degree of protection
Relative humidity resiatance (no condensation)
Dimensions
Weight
Construction:

CONTROL AND INDICATIONS

The 71CNG detector's functions are indicated through the following LEDs ( g1 pos.1):
INDICATES
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 – indicates alarm
- If the red LED is continuous On - the methane level is over the calibrated trigger level in the device
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-
and
tion>Check)
- If both LEDs are blinking simultaneously in a period of 16 sec. - there is fault in the 71CNG detector
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.
02/09.20
Type :71CNG
Before use, read
the instructions carefully!
125 pcs.
(15-30) V DC
(18-30) V DC
< 350µA
55 mA
(2±1)mA
75 mA
100dB@1m
from minus 5° to 40°
IPX2D
≤ 95%
(134x36x112)mm
0.115 g.
ABS
FUNCTIONS
,
Gas Detector – 71CNG UniPOS

INSTALLATION

1
The detector should be installed vertically at the wall – LEDs indicators are in the top-side
Fig.1
of the cabinet, the inlet openings are on the bottom side of the cabinet.
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.
02/09.20
To mount the 71CNG detector,
please remove front panel.
-5°
+40°
,
Gas Detector – 71CNG