Installation
The detector is intended for installation in areas without significant hazards - e.g. homes, light industrial areas or boiler rooms.
We recommend installation according to EN 50244 and by a person with the required electrical engineering qualification! 
Open the screen of the detector by pressing the snap-in clip on the side and fasten the rear part of the housing with the panel of electronics using screws at the selected location. Install the detector for gases lighter than air (natural gas) near the place, above the possible leakage of gas, on the wall, up to 15 cm below the ceiling or directly on the ceiling. Install the detector for gases heavier than air (propane) close to the floor or at the lowest place in the room/room. Always position the detector so that the entrance and exit openings in the detector screen are in the assumed direction of air flow.



Never install the detector near obstructions that prevent natural air circulation, in places where there is a shortage of oxygen and in places, where the operation of the detector may be affected by various odors (smells) or by vapor condensation (e.g. near a stove). A strong airflow near the detector can also negatively affect detection.
Connect the supply conductors, set the internal switches, close the detector's screen, enable the central unit's (receiver's) learning mode, and finally turn on the detector's power supply. 

Terminals of the power supply
Power supply from the mains is connected to the terminals marked 230V AC. The connection is via a fixed supply cable. Before turning on the power supply, check the connection and close the detector screen. Never open the detector with the power supply on. 
Relay terminals
Switch contacts of the output relay are routed on the terminals as follows:
C common contact
NO make contact
NC normally closed contact
The output of the relay can be used for automatic blocking of gas supply via an electric valve, for external signaling of danger, and the like.
CAUTION: The mains output of the relay does not provide safety interruption! 


Internal switches


There are two setting switches inside the detector: 
no OFF ON
1 relay switches upon reaching 1st degree gas concentration relay switches upon reaching 2nd degree gas concentration
2 signaling of gas leakage ends after gas escape by ventilation signaling of gas leakage remains on until power supply to detector is turned off (memory)

Function
After power up, the detector sends a learning signal to the central unit (receiver) and the green signal light starts flashing (for approx. 90 sec - detector is stabilizing). Then a short beep sounds and the green light stays on continuously, which means, that the sensor is ready to work.
When the concentration of the leaking gas reaches the value of the 1st degree sensitivity, short audio signals sound and the red light I. lights up. 
If the gas concentration exceeds the 2nd degree sensitivity, long audio signals ring and the red light II. lights up.
The fact, at which gas concentration the relay will respond, is determined by internal switch No. 1.
The alarm signal (Fire type) is sent by the detector at the time of relay activation (i.e. the transmission is affected by setting of internal switch No.1).
The JA-180G detector does not control the connection to the central unit (receiver), that is, the system does not report detector loss in case of detector power failure.

CAUTION - in case a gas leakage is indicated, prevent the occurrence of fire (ignition) in this room (do not use electric switches, ventilate thoroughly, stop gas leakage, call fire department or gas supplier if necessary).




Maintenance and informative function check

Keep the appliance clean and check from time to time whether the grille of the lid is permeable, clean it if necessary by gently blowing away the dust.
Response of the detector can be tested using a cigarette gas lighter (without flame). Expert calibration of the detector is done by the manufacturer, it is recommended extremely 1 year after commissioning. 

Technical parameters
Power supply from mains 230V(+10 to -15%) / 50Hz, approx. 2W, besch. class II
Loud alarm 94 dB / 0.3 m
Relay output optional reaction to 1st or 2nd degree
Load capacity relay switching contact max.230 V / 5 A
Operating temperature -10 °C to +40 °C
Relative humidity 25 to 75%.
Warm-up time after switching on approx. 90 s
Response time up to 10 s
Method of detection catalytic oxidation
Protection IP 30 ( EN 60 529 )
Communication band 868.1MHz, protocol Jablotron
Communication range approx 200m on direct visibility
Dimensions, weight 101 x 74 x 39, 210 g
Constructed for operation in ordinary atmospheric pressure i.e. 86 to 106kPa
Complies with EN 61779-1, EN 61779-4, EN 50130-4, EN 55022, ETSI EN 300220, 60950-1
Intended for environments without significant hazard BE 1 (2000-3)

Sensitivity:



Note: O.E.G. = lower explosivity limit, calibrated by iso-butane

The product is designed and manufactured in accordance with the provisions to be applied to it: Government Decree No. 426/2000 Sb. if used according to its intended use. 

Remark: Although this product does not contain harmful materials, do not dispose of it in the domestic waste, but dispose of it at the collection point intended for electronic waste.