GJD CS100-ATEX Installation Guidance Notes
GS100-ATEX
Hazardous Areas Infra-Red Beam
PULSE MODULATED ACTIVE INFRA-RED BEAM
FOR HAZARDOUS AREAS ZONE 1 OR ZONE 2
The GS100 IR beam set carries ATEX certication for use within the
petrochemical industry, or other similar industries where an explosion-proof,
ameproof, weather, or dust proof housing is required.
The electronic modules and associated housings have been designed &
assembled in accordance with ATEX DIRECTIVE 2014/34/EU.
Product Description Flameproof IR Transmitter & IR
Receiver Enclosure
II 2 G Ex d op is IIC T6 Gb -20 °C ≤ Ta ≤
+40 °C, IP66
II 2 D Ex tb op is IIIC T80°C Db IP66
Type EMH29
CERTIFICATION AND CONFORMITY
EN 60079-0:2012/A11:2013, EN 60079-1:2014, EN 60079-31:2014,
EN62368-1:2014
Suitable for:
European Classication
Group II Category 2 G Zone 1 & Zone 2 Hazardous areas
North American Classication
Class I, Division 1 & Class I, Division 2
European Classication
Group II Category 2 D Zone 21 & Zone 22 Hazardous areas
North American Classication
Class II, Division 1 & Class II, Division 2
In accordance with EC type examination certicate No. TRAC13ATEX0054X,
a review of EN 60079-0:2012/A11:2013, EN 60079-1:2014, EN 60079
31:2014 and Manufacturing Specication and Parts List-06109 EMH29-
06108.
GENERAL
The GS100 beam set is a detection device only, and is designed to be used
in association with alarm annunciation equipment, or other devices that
provide a means of monitoring the GS100 voltage free relay alarm output
(i.e. CCTV / NVR integrations, etc).
The beam set comprises of two parts, an infra-red beam transmitter, and
an infra-red beam receiver. Both modules are mounted within a ameproof
(EExd) enclosure c/w gasket, chromate primed and polyester coated white
nish.
A heat strengthened plate glass aperture is incorporated in which the
infra-red beam is projected (via TX optics) and monitored (via RX optics). An
interruption in the ‘aligned’ beams path, is designed to provide a change of
relay state at the receiver (N/C & N/O alarm relay O/P).
A heater element can optionally be provided in both the transmitter (TX) and
the receiver (RX), to help combat the build up of condensation.
It is however normal practice to t such a device to the RX housing only,
as an attempt to tamper with the TX device will automatically generate an
output at its associated receiver. i.e. if the TX optics are moved, supply
interrupted, or device is low in voltage, the low energy projected infra-red
beam, or no projected beam present, will be detected by its associated
receiver.
As the beam sets use an infra-red light source that is invisible to the human
naked eye, a beam alignment voltage output is provided for this process, via
a terminal (align. O/P), or test pin.
Additionally, an optical alignment module is provided, that may be used
(placed on) the TX and RX optical assemblies to aid initial alignment, prior to
nal alignment via the voltage O/P.
The voltage O/P is designed to be used with a standard voltmeter
(0 – 10VDC), or for easy single man alignment operation, via an optional
‘Mini-strobe’ beam alignment tool.
The GS100 incorporates both high security ‘Asynchronous’, and
‘Synchronous’ beam set synchronisation, allowing many sets of beams to
be installed on the same site, or indeed stacked above each other (greater
detection), without ‘cross interference’.
The use of the synchronisation facility when installing only one set, or
several sets in different locations of a site is recommended (although not
essential). Doing so will ensure that the receiver (RX) circuitry ignores other
infra-red light sources that may unknowingly be present and falling directly
on the RX optical axis (invisible to see).
Synchronisation monitoring is incorporated when the interconnections are
made, refer to technical specication.
It is recommended that the 12VDC supply have a oating output to accept
the negative earth, and that all cables should be screened throughout their
entirety.
This product is a component system and is intended for inclusion within
other equipment tted by professional installers only.
The unit must not be operated as stand alone equipment.
Where applicable, compliance with the EMC directive or Machinery Directive
is the responsibility of the installer.
SPECIFICATIONS
ADDITIONAL FEATURES
TRANSMITTER
DETECTION TYPE Quad
PROTECTION DISTANCE 10m – 100m / with 75% attenuation
INPUT VOLTAGE Nominally 12Vd.c Min 10.5Vd.c
EFFECTIVE TRANSMITTED BEAM
ANGLE
TAMPER OUTPUT 1 x voltage free N/C contact: Max.
HEATER CURRENT 125mA
IR WAVELENGTH 880nm
DIMENSIONS 160 x 146 x 137mm
TEMPERATURE RANGE -20 °C +40 °C
WEATHER PROTECTION IP66
DETECTION TYPE Quad
INPUT VOLTAGE Nominally 12Vd.c Min 10.5Vd.c
ALARM OUTPUT 1 x voltage free change over
RESPONSE TIME > 20ms < 40ms
DWELL TIME 800ms
HORIZONTAL ADJUSTMENT +/- 15 degrees
VERTICAL ADJUSTMENT +/- 15 degrees
TAMPER OUTPUT 1 x voltage free N/C contact: Max.
HEATER CURRENT 125mA
DIMENSIONS 160 x 146 x 137mm
SYNCHRONISATION MODES Synchronous connection &
TEMPERATURE RANGE -20 °C +40 °C
WEATHER PROTECTION IP66
Note: Housing manufacturer installation & maintenance instructions can be
found within the housing and should be observed prior to xing.
TW-MM100 (Transmitter) USER NOTICE:
When unpacked or tted within housing, never leave the Transmitter optics
facing towards direct sunlight without being covered by the black lter
material.
12v DC
- +
1 2
TW-MM100 (Receiver) USER NOTICE:
When unpacked or tted within housing, never leave the Receiver optics
facing towards direct sunlight without being covered by the black lter
material.
12v DC
- +
1 2
Sync
I/P
Sync
3
O/P
3
O/P
Sig
4
Max. 15Vd.c (15mA)
6° approximately
rating 24V 1A 30VA
RECEIVER
Max. 15Vd.c (40mA)
contact: Max. rating 24V 1A 30VA
rating 24V 1A 30VA
Asynchronous connection in
both modes Synchronising Link
monitoring is incorporated as
standard
O/P
Sync
4
O/P
Align
5
I/P
Ext
5
RELAY OPs
N/O - C - N/C
6 7 8
Spare
6
The equipment utilises pulse modulation.
For high security and avoidance of cross talk between beam sets, the
system can be synchronised by means of an ‘asynchronous’ connection.
For lower security and avoidance of cross talk between beam sets, the
system can be synchronised by means of a ‘synchronous’ connection.
The GS100 circuitry incorporates ‘Sync. Line’ monitoring, providing a change
of relay state (alarm O/P) at the receiver (RX), if the synchronisation cable is
maliciously or accidentally cut, or short circuited.
The product is guaranteed against faulty workmanship for a period of 2 years
from date of despatch.
Our progressive design policy reserves us the right to modify our
products, data and specication, without prior notice.
The infra-red beam is designed as a detection device only and its
output used for connection to an alarm control / monitoring panel. As
such we will not accept responsibility for any theft / damage.
INSTALLATION GUIDANCE NOTES
Please additionally refer to any supporting instructions that may be provided
by the housing manufacturer and may be present within the TX or RX
housing.
Using the M6 mounting holes at the rear of both TX and RX housings, the
units should be mounted on a rigid, vibration free at surface. Depending
upon the structure being xed to, it may be necessary to employ some form
of mounting plate, as the housings must not in any instances be drilled.
The transmitter (TX) & receiver (RX) unit should be mounted so as to face
each other squarely, and at the same height, assuming that the ground is
level.
The optical heads of the TX & RX can be adjusted (+/- 15deg. approx.),
however the housing aperture restricts movement and should be used as
a means of overcoming unavoidable inaccuracies that may occur during
installation.
Further adjustment is catered for in the TX & RX mounting plates. Two
sets of mounting holes are provided (one set above the other), allowing the
electronics and associated optics positions within the housings to be shifted
in the vertical plane.
Where greater angles are required, then this should be dealt with using
suitable adjustable mounting plates.
Cable type, mechanical protection, and entry glands should be provided by
others and suitable for the type of installation.
When choosing the appropriate cable for the installation, consideration
needs to be paid to the TX & RX terminal cable size (refer to tech. spec.)
and in particular to the size of conductor used for the 12V DC supply voltage
over the length of the cable run (to avoid voltage drop).
Where it is decided to use optional heater elements to combat condensation
build up on the glass apertures (external exposed locations), then it is good
practice to use a separate pair of conductors for the supply voltage to the
heater terminal connections.
The TX & RX units should be connected in accordance with the wiring
diagrams provided, with connection made to the heaters and tamper
switches where tted.
A separate terminal block is provided on the underside of each heater
module, and requires a 12V DC supply voltage for element operation
(refer to tech. spec. for current of each heater). For ease of installation,
the termination block is removable (pull downward off of board connection
mounting pins). Note: cable connections are to the outer two terminals only,
the centre one not being used.
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