iSens GLA-D User manual

GAS LEAK ALARM: Model: GLA - D
LPG (Propane, Butane), Domestic gas (Methane, Biogas),
Hydrogen, Exhaust/Smoke, CO2, Anaesthetic Gas
Triple life, up to 15 years
No electricity, charger or battery change
Unique, simple and safe self-testing
USER MANUAL: Version 2021-01
WARNING:
Never use combustible gas concentration for testing!
Read the latest version of the manual in its entirety before using the
product.
Check for updates and corrections at the iSens website.
Keep this manual for later use.
Do not dispose of the product in household waste.
Submit electronic products and plastics for recycling.
Electronics and parts are manufactured in accordance with the
RoHS directive
The directive prohibits lead and other environmentally hazardous
substances.
The alarm is made of ABS
The packaging is made of PVC
ABS PVC
This product is designed to comply with EN50194-2.
The standard describes all requirements and tests performed for this
product.
Norwegian product manufactured in Poland for iSens AS –www.iSens.no
1. WARRANTY
iSens only wants satisfied customers. The GLA is therefore supplied with a one-year
warranty from the date of purchase. The GLA may have the same lifetime as the energy
source, however, its lifetime may be reduced depending on outer environment, use,
alarm time, etc. A single alarm may completely deplete the energy source. See
technical data. This product is therefore a disposable consumable product with a 0–15-
year lifetime.
The warranty only covers material defects and malfunction related to manufacturing,
and only if the product has been used and maintained correctly. The warranty only
applies if the product has not been opened, attempted opened or repaired by the
customer. The warranty does not cover visible external / internal damage or energy
depletion. When using the warranty, the GLA must be submitted to the reseller in its
original packaging along with the original receipt. iSens’ liability is limited to repairing
the product. Alternatively, iSens may replace the GLA with a new device (which may
be a newer model) or refund the original selling price.
iSens is not liable for any damages or losses arising from the GLA not functioning.
iSens is not liable for losses or injuries, material or other damages due to gas leaks, fire
or explosions. iSens’ liability is limited to the purchase value of the product. The GLA
does in no way replace or fulfil recommended or mandatory safety measures for gas
leaks, fire or explosions in accordance with current laws and regulations. The GLA is
not type approved as a smoke detector. The GLA does not fulfil or replace any form of
insurance. Also read about automatic calibration in the safety chapter. The GLA only
provides an additional, optional contribution to increased safety.
In the event that the buyer disagrees with these warranty provisions, the GLA must be
returned before use in the original packaging, immediately and within the cancellation
period, which is normally up to 14 days for online purchases.
2. DESCRIPTION
The GLA contains a new Norwegian patented technology. The technology enables the
detection of several different gases by the same sensor. The sensor can therefore be
tested in a unique, simple and safe way using breathing air (carbon dioxide). Self-
testing creates the greatest safety. The new technology has a self-purifying effect
enabling up to 3 times the lifetime of other alarms (optical and electrochemical). The
electronics are designed to achieve ultra-low energy consumption. The GLA will
therefore be able to function continuously for a total of 15 years without battery
change, power supply, adapters or chargers. This saves the environment and provides
safe alerts even in the event of a power failure. The GLA is ideal for the home, cabin,
camping, and boat.
LPG gas (propane, butane) is heavy and stored in tanks. Gas may leak from a gas
fireplace, barbeque, cooker, gas stove, and other appliances. The gas can ignite when
the concentration exceeds the LEL (Lower Explosion Limit). The GLA alerts well
before this happens, already at 10–15 % of the LEL.
Domestic gas, or Household/Town gas, (methane, natural, biogas) is light and
distributed into homes in a pipe system. The gas may leak from pipes, hot water tank,
kitchen stove and heaters. The gas can ignite when the concentration exceeds the LEL
(Lower Explosion Limit). The GLA alerts well before this happens, already at 10–15 %
of the LEL.
Hydrogen is a light gas that is going to be used in many applications in the future. The
GLA alerts well before the gas concentration from a leakage reach LEL, already at 10–
15 % of the LEL.
Exhaust and smoke may come from engines, heaters, fireplaces, and fires. The GLA
alerts of carbon dioxide CO2already at 5000 ppm. This corresponds to a normal
25 ppm of toxic carbon monoxide CO in exhaust from a diesel engine/heater. Less from
open heat and fire. The Norwegian exposure threshold limits are 5000 ppm of CO2and
25 ppm of CO in order to avoid impaired performance and health. The GLA alerts
when these limits are exceeded. The GLA is not type approved as a fire/smoke detector
for fire safety in private residences, but will provide additional safety, also in case of a
main power failure.
Carbon dioxide is produced by humans, animals, plants, fireplaces, gas stoves, candles,
and heaters. The GLA will alert if the Norwegian occupational exposure limit for
carbon dioxide is exceeded. This will give a good indication of the indoor air quality
and environment, especially in order to avoid impaired performance and other health
related consequences.
Anaesthetic gas has until recently been of the type chloroform and ether. Today,
odourless gas is used by various types of fluranes. The GLA is probably the only alarm
on the market alerting of both old and newer types of anaesthetic gases before they take
effect.
3. SAFETY
The safety regulations must be read before installing and using the product.
We recommend using at least two GLA sensors in order to obtain good operational
safety. With more sensors you achieve better coverage of areas where gases may
accumulate. This also increases protection against any sensor faults or depleted energy
sources significantly.
Important factors for the GLA to function normally:
The front switch must be ON.
Correct placement (quiet, undisturbed location, low).
Cleaning, removing dust with a dry cloth or brush.
Regular control of LED blink (daily)
Regular testing (monthly).
Save energy (turn the alarm off immediately when testing).
Important factors that may cause the GLA not to function normally:
The front switch is OFF.
Incorrect placement.
Lack of monitoring and testing.
Covering, dust.
Direct sunlight or heat radiation.
Rapid or significant differences or changes in temperature.
Water, condensation and abnormally high air humidity.
Solvents and other abnormal gases, smoke and fog.
Strong electrical or magnetic disturbances.
Strong acoustic noise, outside audible range.
Mechanical impact (vibration, shaking, shock, falling to the ground).
Depleted energy source (alerts and testing deplete the energy source).
Information on False Alarm and significant/rapid temperature changes is found in
Chapter 4 and under Service at www.isens.no. Remember that odours from fuel gases,
exhaust and smoke may become uncomfortably strong before the alarm level is
reached.
If the GLA does not function normally, it must be turned off. Check the warranty.
Never attempt to open the box or repair the product yourself. This involves a high risk
of electrostatic short-circuiting and damage to the product.
The GLA has built-in automatic calibration. If the GLA has been exposed to a high gas
concentration (over time), it should be placed in a location without gas (outdoors) for a
few days to reset. If a gas leak is very small and lasts for a longer period of time, the
automatic calibration may cause the GLA to alert at a concentration slightly higher than
originally calibrated. Normally, a very small gas leak will be handled by natural
ventilation in the room. The GLA is designed to alert at sudden accidents where the
concentration rises relatively quickly from a normal level.
!
RoHS

4. USE
INSTALLATION
Installation should be done by a competent person. When installing it is important to
consider the points under Safety and Technical Data. Placement is important in order to
achieve the fastest possible detection of gases. It is important to choose a location
where the gas spreads out, and where there is minimal ventilation and air movement.
The spreading of gas is initially diffusive in all directions. Place GLA so it is
unaffected by foreign gas, sun, cold draught from windows, ventilation and heaters.
Heavy fuel gases LPG and Anaesthetic gases will go downwards, but also spread
throughout the room. Normal placement is on its silicone legs down at the floor in a
corner or under a furniture. Exhaust gas from heating cools quickly, and will also
spread throughout the room and down towards the floor. For best possible detection of
CO2and leakage of exhausts and smoke only, the sensor should be placed in the
breathing zone or higher. For fastest possible detection of Domestic gas and Hydrogen,
as well as warm smoke from a fire, GLA should be placed high up at the ceiling. The
location should be at least 1m away from doors, windows and other openings.
Mounting with tape on a wall may cause fall damages and false alarms. Screw slots on
the underside should be used for walls. Remember that the alarm must be heard well.
Engine rooms are sound proof. When the GLA is turned on, the alarm may sometimes
sound for 5–10 seconds. This is completely normal. Then only the LED should blink
about every 5 seconds.
FALSE ALARM
The GLA is sensitive to significant/rapid changes in temperature. Avoid placement in
the sun and near heat sources and openings. If a false alarm occurs, please select a
different placement. In the event of a false alarm, also check the points in Chapter 3.
For locations without heating, the alarm should be turned off when the location is
vacated, and stored by the gas shut-off valve in order to remember to turn it back on. In
case of danger of condensation, the alarm should be stored in a diffusion-tight box. A
false alarm will deplete the battery quickly.
TESTING
NEVER test gas sensors without an EX approval with combustible gas concentration.
Gas alarms are deigned to alert long before the concentration becomes combustible.
The GLA therefore has a smart, built-in safety function for testing. It is designed to
react to carbon dioxide present in the air we exhale.
Place the GLA in a small, transparent plastic bag. Breathe normally through one of the
openings on the side, and close the bag. Then wait for a few seconds until the alarm
sounds. The alarm should not sound until 1–2 LED blinks, but normally before 5–6
LED blinks, depending on how quickly the bag is filled. If the alarm sounds too
quickly, it may have become overly sensitive. Wait a while and repeat the test with a
little less breathing air. iSens tests every GLA with and without gas before delivery.
However, too hard physical impact may cause our factory settings to shift. In that case,
your GLA needs to be replaced by your reseller.
Remember that alarms consume a lot of power. Therefore, turn the GLA off quickly
and wait until all the gas is aired out before turning it back on. Testing with breathing
air gives a complete test of all functions.
ALARM TIPS
Every situation can be different in the event of gas leaks, fires and explosions. Follow
the national/local regulations and practice. Also, the following tips may be useful.
Stop the leak. Turn off the main switch.
Notify other people in the vicinity.
Lower the gas concentration. Open doors, windows, etc.
Put out embers and open flames from cigarettes, oil lamps, etc.
Do not touch electrical appliances or power switches.
Evacuate to a safe location until the gas is completely gone.
5. TECHNICAL DATA:
Materials: ABS box and PVC packaging
Exterior dimensions: 110 x 80 x 30 mm
Colour: White with black edges and front
Mounting: Silicone legs (mounting holes for screws)
Weight: Approx. 120 g
Operation: OFF-ON switch in front
Gas types: LPG: Propane, Butane
Domestic: Methane, Natural gas, Biogas
Hydrogen
Exhaust/Smoke: CO2 (CO indirectly)
Anaesthetic gas: Chloroform, Ether, Fluranes
Detection limits: 10–15 % of LEL (Lower Explosion Limit)
Exhaust and smoke 5000 ppm CO2(approx. 25 ppm CO)
Anaesthetic gas approx. 1000 ppm
Detection time: 5 second intervals LED blink indicator
Reaction time: 10 seconds (with logical error check)
Alert mode: Red LED light in front and Alarm
Alarm level: >85 dB at 1 m (2.7 kHz) pulsed 5 seconds on/off
Alarm time: 90 minutes total (full energy source)
Error signal: LED stops blinking, alarm sounds.
Measuring technology: Acoustic
Testing: Smart safe testing function with CO2(breathing air)
Recommended area of use: Stable temperature without rapid changes (5–35 °C)
Recommended storage: Dry air without condensation (-20 to +40 °C)
Energy source: Lithium 3–6 Vdc
Energy source life time: Up to 15 years continuous
(estimated from measured power consumption)