E.C. Products Limited - Head Office
EC House, Amberley Way, Hounslow
Middlesex, TW4 6BH, United Kingdom
Tel:
+44 (0)20 8569 4100
Fax:
+44 (0)20 8569 4111
ECP reserves the right to change the information contained in this datasheet as and when required without notice. Users must take care to use the information contained in this leaflet. ECP will not
accept the liability for damages, loss and expenses that may be caused by omissions and errors in the information provided.
Ref: ds_GLD_0209 Ver1.0.
Gas Leak Detection GLD
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Description
The GLD gas leak detection range is suitable for use in Boiler
Rooms and other Commercial applications to provide safety and
shut down functions in the event of gas leakage.
Control units are available in 1, 2 or 3 channels for connection to
1, 2 or 3 remote sensors. They are mounted in DIN rail housings
with the option of panel or wall mount enclosures.
Output relays to operate auxiliary devices such as Solenoid Gas
Valves or Sirens and fault remote signalling are fitted to all units.
Power supply is 230Vac or 12-24Vdc and sensors are available
for both Natural Gas, LPG/Propane and Carbon Monoxide.
Features
1, 2 & 3 channel options
●
Audio & visual alarms
●
Adjustable alarm sensitivity
●
Relay output for gas valves
●
Relay outputs for remote alarms
●
Auto or manual reset
●
Technical Specification
Power Supply:
GLD361: 230Vac ±10% @ 50Hz
GLD65*: 12V ±10%
Power Consumption:
GLD361: 3VA
GLD65*: 7VA
Relay Outputs:
GLD361: 5(1)A @ 250V SPDT
GLD65*: 2 x 5(1)a @ 250V SPDT
Pre-alarm Thresholds:
Natural Gas:
0.3% to 0.8%
(3000 to 8000ppm)
LPG:
0.14% to 0.35%
(1400 to 3500ppm)
CO:
0.012% to 0.03%
(120 to 300ppm)
Alarm Thresholds:
Natural Gas:
0.5% to 1.25%
(5000 to 12500ppm)
LPG:
0.22% to 0.56%
(2200 to 5600ppm)
CO:
0.02% to 0.05%
(200 to 500ppm)
Sensors:
Natural Gas
: GLD150
LPG:
GLD250
CO:
GLD350
Materials:
Base – Nylon, Cover – ABS
Ambient:
Storage:
-25°C to +60°C
Operating:
0°C to +45°C
Order Codes
GLD361
DIN rail Single Channel Gas Leak Detection Controller
GLD651
DIN rail Single Channel Gas Leak Detection Controller
GLD652
DIN rail Two Channel Gas Leak Detection Controller
GLD653
DIN rail Three Channel Gas Leak Detection Controller
GLD655
Panel Mounting Kit
GLD150
Natural Gas Sensor
GLD250
Propane/LPG Sensor
GLD350
Carbon Monoxide Sensor
Installation
Detector
The detector must be sited in a dry space in which the relevant
ambient limits shown in the Technical Specification are observed.
If sited in a space classified as “Dangerous” it must be installed
in a cabinet for electrical devices constructed according to the
regulations in force for the danger class involved.
The controller can be installed on a DIN rail or in a DIN
modular enclosure.
Sensors
The correct siting of the sensors is essential for efficient
operation and depends on the type of gas to be monitored and
its density in respect of air:
Methane-natural gas (light): 10…50 cm from the ceiling
LPG-propane (heavy): 10…50 cm. from the floor
CO-carbon monoxide: 150…200 cm. from the floor
It is advisable to position the sensors at a certain distance from
the gas appliances so as to avoid triggering unnecessary alarms:
Boilers & calorifiers : 1…2 meters
Gas cookers : 2…3 meters
Shut-off solenoid valve
This must be installed on the gas feed pipe, possibly
outside the
space controlled, in a place which is easily accessible and is
protected from bad weather.
In LPG installations the valve must be installed
downstream of
the pressure reducing valve
(30 ... 40 mbar).