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Whilst SGX has taken care to ensure the accuracy of the information contained herein it accepts no responsibility for the consequences of any use thereof and also
reserves the right to change the specification of goods without notice. SGX accepts no liability beyond the set out in its standard conditions of sale in respect of
infringement of third party patents arising from the use of SGX products in accordance with information contained herein.
In case of modification of the product, SGX disclaims all liability.
SGX Europe sp .z o.o. Poland REGON: 362332227 DS-0239, Issue 1, 13-May-2016, Page 1
Building 11
Ligocka St. 103,
40-568 Katowice,
Poland
E: sales.is@sgxsensortech.com
www.sgxsensortech.com
IR600 Datasheet
Infrared Gas Sensor for Hazardous Areas
(Fixed Systems)
The IR600 Series gas sensors are designed to detect and
monitor the presence of CO
2
, hydrocarbons and acetylene
using the same non-dispersive infrared (NDIR) principle as
used in the SGX Sensortech range of miniature infrared gas
sensors. Dual detector channels are used with a reference for
background compensation. A temperature sensor is mounted
for temperature compensation.
IR600 sensors are designed to be integrated with fixed gas
detection systems. Their construction is a stainless steel
flameproof enclosure with an integral stainless steel sinter for
the safe entry of the gases being tested.
Three types of mounting thread are available to allow easy
fixing to the junction box of the fixed system. On the front face
there is an external M46 thread for attaching optional
accessories for use in different applications. The IR600 Series
incorporates an inbuilt and sealed preamplifier/buffer and
require connection to suitable transmitter systems for their
power supply, operation and signal processing. The IR600
lead in/out terminates in an 8-pin connector.
FEATURES
• For detection of the following gases:
o Carbon Dioxide (IR601),
o Hydrocarbons (IR602, IR603)
o Acetylene (IR604)
• Diffused gas sampling via sinter
• Low power
• Reference channel for self-compensation
• Special gold plated optical/gas cavity for stable signal
levels
• Operational in varying temperature, pressure and
humidity
• Fast response
• Rugged stainless steel construction
• No moving parts
• Resistance to corrosion
• Immunity from ‘poisoning’
• Reliable fail-safe operation
• Low maintenance
• Sealed preamplifier/buffer electronics
• Accessories available for field applications
• ATEX certified
• CSA certified (Canada and US)
OPERATING PRINCIPLE
SGX Sensortech manufactures a range of Infrared (IR) Gas
Sensors for a variety of gases and vapours in different
applications. These are compact and robust gas diffusion type
sensors based on an SGX Sensortech patented optical
design. They run on low power and use well proven Non-
Dispersive Infrared (NDIR) detection methods.
The sensor operates using the natural ability of the target
gases to absorb radiation in the infrared portion of the
electromagnetic spectrum. Using an infrared source, detector
and selective optical filters the SGX infrared sensors can be
used to detect a range of target gases. More information on
the NDIR sensors can be found in the SGX Sensortech
Application Notes.
TECHNICAL SPECIFICATION
Mechanical
Environmental
Ambient temperature range
for operation (ATEX):
for operation (CSA):
-20°C to +60°C
-20°C to +65°C
Operational pressure range
Humidity range for operation
and storage
(Non-condensing)
hydrocarbons
Electrical
(Recommended)
(Square Wave at 4Hz, 50% duty cycle)
