Description
The Deffender SDI methane gas detector is ideal for residential environments. Deffender SDI detects methane gas and LPG. Both the detector and a solenoid valve with 9 VDC power supply are included in the package.
Informations
Functions
Accurate warning
If the gas sensor is not working properly, the detector will emit a short audio signal followed by a four second pause. The red LED will then be lit.
Dual functionality
Deffender SDI can detect both methane and butane gas (LPG). However, depending on which gas you want it to detect, you need to follow the steps in the manual for proper placement.
Silent function
When the Deffender SDI detector has triggered the alarm, the audio signal can be turned off by pressing the “Test” button. The piezo siren will be turned off for five minutes. The red LED will flash.
Specifications
Detector specifications
Power supply
230 VAC, 50/60 Hz
Power consumption
< 2W
Gas detection
Gas butane (GPL), gas methaneGas butane (GPL), gas methane
Alarm level
5% L.E.L.
Sensor type
SnO2 semiconductor
Brand
Homplex
Piezoelectric alarm
85 dB la 1 m
Operating temperature
2°C – 40°C
Humidity
10% … 90% RH (non-condensing)
Protection class
IP42
Size
70 x 115 x 44 mm
Weight
approx. 150 gr.
Colour
White
Electrovalve specifications
Power supply
9 VDC
Operating temperature
-10°C ... +40 °C
Reset mode
manual
Material
brass
Maximum pressure
500 mbar
Reaction time
< 0,3 seconds
Flow rate
25m3/hour
Plug diameter
3/4′ (unless otherwise specified on box)
Equipment warranty
2 years
Associated Files
Frequent questions
How do I mount the Deffender SDI for butane gas detection?
Installation should be done in low places (approx. 30 cm above the floor) because butane gas (LPG) is heavier than air.
How do I install Deffender SDI for methane gas detection?
Installation should be done in high places (approx. 30 cm from the ceiling) because methane gas is lighter than air.
I smell gas, but the detector doesn't respond
The unpleasant and easily recognisable smell (an unpleasant sulphurous odour) of natural gas used in homes is due to odorant additives, such as tert-butylthiol, which are used for safety.
Most people can detect this smell at fairly low levels of gas concentration (2% L.I.E. or less), but certain disabilities or advancing age can lead to a reduction in this smell sensitivity.
The L.I.E. (Lower Explosive Limit) of the gas defines the minimum volume ratio of combustible gas or vapour in the air in which an explosive atmosphere will form. The detector is calibrated to trigger the alarm at the threshold of 10% of the L.I.E. of the detected gas.
Thus, it is possible for a person to smell gas before the alarm is activated. This does not necessarily indicate a fault in the device.
For humans, a gradual increase in gas concentration may also go unnoticed due to olfactory fatigue.
Translated with www.DeepL.com/Translator (free version)
Methane gas detection equipments
Methane/butane gas detection solution – Deffender SDI
Product code:
3710015
Methane gas protection equipment - Deffender detector and solenoid valve
- Accurate warning
- Dual functionality
- Silent function
