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Crowcon IRmax Infrared Hydrocarbon Gas Detector
IRmax is a premium quality IR gas detector designed for protecting facilities
against flammable gas hazards. IRmax is the perfect choice for protecting new
installations or for upgrading safety on existing sites.
Rugged & reliable
Fast response: with a response time of only 4 seconds,
IRmax provides rapid detection of hydrocarbon
Ultimate dependability: designed and proven for
compliance with IEC61508 SIL 2, IRmax has been
rigorously tested in offshore environments.
Wide operating temperature range: IRmax is fully
temperature compensated for operation in environments
from -40°C to +75°C.
Dependable detection: IRmax continues to detect gas
with the optical system 90% obscured by salt or other
contaminants. The level of obscuration (contamination)
can be checked easily via the IR Display, and a fault signal
is generated when optics are 90% obscured.
Proven track record: IRmax has been subjected to
intense 3rd-party long-term tests for reliability in hot,
cold, wet and saline environments.
Low maintenance: IRmax employs sophisticated systems
and algorithms to ensure reliable operation at all times.
Remote non-intrusive calibration: the IR Display
enables simple status checking, plus zeroing and
calibration of the detector. The IR Display can be mounted
up to 30 metres from the IRmax and test gas can be
applied without needing to directly access the detector.
Hand-held I.S. calibrator: where a local display is not
required, IRmax detectors fitted with an I.S. barrier
module can be checked and calibrated using an
Intrinsically Safe (I.S.) calibration accessory.
STAY-CLIR optics: optical components
are treated with a patented coating
to prevent potential obscuration in
condensing atmospheres. The STAY-CLIR
coating significantly reduces the buildup
of dust, dirt or other contaminants on
the window and mirror.
Simple to install
Compact size: IRmax is much smaller than conventional
IR gas detectors, and thus requires less space, effort and
time to install.
Installation options: IRmax can be wall mounted,
fixed to a 2” (50mm) pipe or connected to an
auxiliary junction box using a choice of
Versatile connectivity: with industry
standard 4-20mA output signal plus
options for RS-485 Modbus and HART
communications, IRmax is compatible
with virtually any control system.
Low cost of ownership
Low power: unlike conventional IR gas detectors, IRmax
does not require heated windows or mirrors. IRmax
consumes only 1 Watt of power, enabling smaller power
supplies and battery back-up systems to be used.
Remote IR Display: the remote version of the IR Display
enables checking, adjustment and calibration of the IRmax
detector without requiring direct access. This feature
removes the need to use ladders, scaffolding and ‘cherrypickers’
to perform routine maintenance tasks on detectors
mounted in inaccessible areas.
Minimal routine maintenance: features such as automatic
optical obscuration monitoring and the requirement only
for occasional gas testing keep maintenance engineer costs
to a minimum.
Infrared Hydrocarbon Gas Detector
IRMAX-01 Methane, 0-100% LEL no display, M20, ATEX, 4-20mA sink
IRMAX-02 Methane, 0-100% LEL no display, M20, ATEX, 4-20mA source
IRMAX-03 Methane, 0-100% LEL fixed display, M20, ATEX, 4-20mA sink
IRMAX-04 Methane, 0-100% LEL fixed display, M20, ATEX, 4-20mA source
IRMAX-05 Methane, 0-100% LEL fixed display, 1/2"NPT, ATEX, 4-20mA+ HART source
IRMAX-06 Methane, 0-100% LEL IS barrier module, M20, ATEX, 4-20mA sink
IRMAX-07 Methane, 0-100% LEL IS barrier module, M20, ATEX, 4-20mA source
IRMAX-08 Butane 0-100% LEL no display, M20, ATEX, 4-20mA sink
IRMAX-09 Butane 0-100% LEL no display, M20, ATEX, 4-20mA source
IRMAX-10 Butane 0-100% LEL IS barrier module, M20, ATEX, 4-20mA sink
IRMAX-11 LPG 0-100% LEL no display, M20, ATEX, 4-20mA sink
IRMAX-12 LPG 0-100% LEL no display, M20, ATEX, 4-20mA source
IRMAX-13 LPG 0-100% LEL IS barrier module, M20, ATEX, 4-20mA sink
Note: The above list of short codes are the most commonly ordered configurations.
IRmax Remote and Hand-Held IR Display Options
C011151/1 IR Display - Remote Version
C011152/1 IR Display - Remote Version With HART
C011205 IR Display - Hand-Held Version
IRmax I.S. Remote Display connecting leads
E07988 1.5 metre connecting lead.
E07990 5 metre connecting lead.
E07989 10 metre connecting lead.
E07991 15 metre connecting lead.
E07992 20 metre connecting lead.
E07993 25 metre connecting lead.
E07994 30 metre connecting lead.
M040400 Connector only (Bulgin, for customer made leads)
C011204/2 Remote calibration box.
C011301 Remote calibration box.
Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.
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