IGD TOC-750BR User manual

TOC-750BR Gas detector
International Gas Detectors
Stockport SK2 6SH UK
172
158
44
76
98 18
Typical Detector Mounting
Heightsl
CH4
CO
CO2
O2
LPG
Ceiling Height
1000 - 1800 from Floor Level
0 - 400mm From Floor Level
]
Press for more
than 5s
when NOT in
alarm for
an alarm test
Install to plug socket and fit label
to indicate NOT to turn off socket
DO NOT
TURN
OFF
Install Beacon Sounder to
Protect Door Entries
Model ID
TOC-750BR-O2
TOC-750BR-LCO2
TOC-750BR-CO
TOC-750BR-MK7
Nominal Alarm Point
19.5%
4500ppm
20ppm
10% LEL
Type
Falling Level
Rising Level
Rising Level
Rising Level
All Alarms Auto-Reset
Physical
97.5
104
50
4.2 Fixings
Note: 750BR Versions are supplied Pre-Wired
and Pre-calibrated ready for use. Alternate
Power supplies are available for permanent
installation if required. Equipment should be
installed by a competent person who has read
and understood this instruction manual.
Amber Fault
LED Call for
Service if
illuminated Red Alarm LED
Active on Alarm
Green Power LED
Flashes During
Warm up
%LEL
%LEL
General Detector Mounting Positions Safe Area (BS EN 50194)
Sensor Facing Down
Sensor Mounted to Vertical Wall in Various Orientations
Do NOT Mount With The Sensor Facing Upwards
Air Flows up to 1M/S Are Allowable Without Any Performance Issue
Detectors in Airflows Mounting Positions Safe Area (BS EN 50194)
100mm
100mm
100mm
100mm
>1.5M
>1.5M
Mounting Locations For Flammable Gas Detectors
LPG
CH4 (Natural Gas/Methane)
Document Ref 750-BR-V1.1

Alarm Change Over relay (volt free)
Relay is normally ON, De-energising
on alarm condition.
NC
COM
NO
Power Supply:
Environmental:
Response Time:
Nominal Alarm Levels:
Expected Life:
Target Gas:
Standards Applied:
Cabling:
Service:
12 to 28V DC 4W
0 to +55 Degrees Centigrade
0-95%RH Non-condensing
Terminal Enclosure IP54 Cable Glands Must be used
<30 Seconds
See preset alarm levels Relay Active SPCO 5A @ 230V AC Non inductive
5 Years, no user replaceable parts
See cover markings as CO, CO2, O2, LPG, CH4
This equipment must only be serviced by competent persons and checked
periodically using traceable calibration gases. Do not test using lighter fuel or
similar fuel gases as this can give misleading results. In extreme cases this can
result in sensor damage.
EN50194-1:2009 Type A Equipment
When using stranded cable fit bootlace ferrules to
Prevent stray wire strands shorting
EN60335-1:2002 EN50270
Internal Terminal Functions
24V DC
0V DC
Installation of this device when connecting to a mains power supply should only be made by a competent
person. The unit is supplied pre-calibrated. Clean only using a damp cloth, DO NOT USE CLEANING
PRODUCTS.
Do not tamper with this equipment. To do so may cause incorrect operation or risk electric shock.
Connection for flammable gas detector
Connection for
O2/Toxic/IR gas detector
Connection Point for LED Module
Digital Output
(Sounder)
Digital Input
(Push Button)
Supply
Out
Supply
IN
NOTE: The unit is shipped configured and Pre-Calibrated for its detector and options and alarm levels
Internal Relay Active on alarm
Note relay is normally energised and
turns OFF on alarm.
Relay is mains rated to 5A and can be
used to control other 3rd party devices
(Flammable Gas Detectors)
Main Base PCB Connectors
When unplugging detectors from the main PCB DO NOT lever them off. This will potentially cause damage to the
PCB and/or connector mating parts and invalidate any warranty. If it is necessary to remove the PCB connectors use
long nose pliers.
+55 C
-10 C
Locating the Detector
The TOC-750 Flammable gas detector is factory calibrated for its target gas. The target gas is indicated on the
product (i.e CH4, LPG etc). The TOC-750 will respond to any flammable gas but can only be calibrated to be
correct response to one. The following list indicates common materials that may also cause a response in
operation:
Aerosol propellants (Butane)
Paint solvents (VOC’s)
Hot vaporised cooking oils
Solvent based adhesives (VOC’s)
Some commonly occurring substances may cause long term detector damage, typically:
Silicones (furniture polishes etc)
Hair sprays (silicones, VOC’s etc)
Chlorinated cleaning agents