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EsiWelma s.r.l.

    

rev. 02 of 01-09-10 / pg. 2 

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Outputs 

Detector status 

LED 

GREEN 

LED 

YELLOW 

LED 

RED 

BUZZER 

RELAY 

Off 

OFF 

OFF 

OFF 

OFF 

OFF 

Sensor warm-up (60 seconds) 

ON 

ON 

OFF 

OFF 

OFF 

Normal operation 

ON 

OFF 

OFF 

OFF 

OFF 

Sensor fail 

ON 

ON 

OFF 

OFF 

OFF 

Alarm 

ON 

OFF 

ON 

ON 

ON 

Operational test 

like in alarm, for the time the button is pressed down 

Key: 

ON = steady on / activated   / switched 

 

OFF = off / deactivated / not switched 

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Ensure compliance with standards in force for electrical wiring.   The devices must be connected to the mains 
and remain permanently powered.   Omnipolar disconnection must be included in the mains. 
Carefully  read  the  instructions  and  electrical  wiring  diagrams  in  this  document  and  follow  them  to  the  letter. 
Keep this document in a safe place for future consultation. 

 

The device must be installed by qualified technicians. 

 

Installation 

The detector must be installed: 
Methane  Gas:  since  this  gas  is  lighter  than  air,  it  will  be  con-
centrated  close  to  the  ceiling.  Install  it  about  two  metres  from 
the gas device and about 30 cm from the ceiling.

 

For  LPG  (liquid  gas  in  cylinders):  since  this  gas  is  heavier 
than air, it will be concentrated close to the floor. Install it about 
two metres from the gas device and about 30 cm from the floor. 

 

The detector must not be installed: 

• 

outdoors 

• 

near stoves and cooking appliances 

• 

near sinks and taps 

• 

near exhaust hoods, windows, fans etc. 

• 

in areas where dirt and/or dust can clog the front grille of 
the detector 

• 

where the temperature or humidity exceeds the detector's 
operating limits 

• 

in closed spaces (behind curtains, inside cupboards etc.). 

 

depending on the model purchased, the detector can be mounted: 
1. 

directly in type 503 recessed mounting box  

2. 

screwed onto the wall with adapter ESN.KW 

3. 

on a shelf in the table-top version, using adapter ESN.KT/KC. 

 

Before fixing the detector to box 503 or to adapter ESN.KW or ESN.KT/KC, the bracket needs to be adjusted to 
the backing plate selected from major manufacturers of recessing equipment (see Table 1) and, if necessary, 
two side adapters need to be inserted to cover the side gap created when using some plates. 
 
Table 1 

 

Manufacturer: 

Side 

adapters 

Tabs to 
remove
 

AVE 

SISTEMA 45 and BANQUISE 

YES 

None 

BTICINO 

Living international and Light 

NO 

GEWISS 

PLAYBUS and PLAYBUS Young 

YES 

SIEMENS 

DELTA FUTURA GRAPHIT 

YES 

VIMAR 

IDEA and RONDO’ 

YES 

 

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Operational 
table

 

Installation and 
Commissioning

 

ESN.I.G 

ESN.I.P 

Summary of Contents for Sensigas ESN I Series

Page 1: ...nd of the warm up phase the detector enters normal operation mode and will continue in this state until it detects gas Gas detection In this case so when the gas concentration exceeds the threshold set points the detector senses its presence and goes into the alarm condition indicated by the red LED coming on and by the sound of the integrated buzzer After about 20s the internal relay is switched ...

Page 2: ... liquid gas in cylinders since this gas is heavier than air it will be concentrated close to the floor Install it about two metres from the gas device and about 30 cm from the floor The detector must not be installed outdoors near stoves and cooking appliances near sinks and taps near exhaust hoods windows fans etc in areas where dirt and or dust can clog the front grille of the detector where the...

Page 3: ...and LPG odorization made by the distributor together with the high sensitivity of the human olfactory apparatus make it possible to smell the presence of these gases already at extremely low concentrations so a lot earlier than the detector For operational and regulatory reasons the detector is calibrated to take action at a higher threshold which is still very far below the hazard threshold _____...

Page 4: ...several locations The contacts must be connected in series Example d Command of visual and audible alarms at the same voltage as the power supply Example e Command of visual and audible alarms at a different voltage from the power supply __________________________________________________________________________________________ _______________________________________________________________________...

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