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
SGX Europe Sp. Z o.o.
Building 11
Ligocka St. 103,
40-568 Katowice,
Poland
T: +48 (0) 32 438 4778
E: sales.is@sgxsensortech.com
www.sgxsensortech.com
PERFORMANCE
For test purposes, all data taken using the following conditions:
- SGX linearisation and temperature compensation algorithms; see Infrared Sensor Application Notes.
- Lamp modulation 0.4 - 5.0 V, square wave, at 4 Hz and 50% duty cycle.
- Ambient temperature (20°C) and pressure (103 kPa).
- All gases diluted in dry nitrogen.
Sensor type
Gas
Sensing range
Maximum response time (T90)
Voltage output in nitrogen for active and
reference channels
Sensitivity to gas over full concentration range
(before linearisation)
Maximum deviation from linearity
Maximum variation of zero from
−20
to +55
°C
Resolution (See note 1)
Maximum non-reproducibility of zero at 20
°C
Maximum non-reproducibility of sensitivity at 20
°C
Long-term zero drift/month
Response to 0 - 90% change in RH at 20
°C
(in target gas)
MTBF (lamp dependent only)
Vibration
Ingress Protection
±10
ppm/°C
100 ppm
(at 2%vol)
IR601
Carbon Dioxide
0 - 5.0%vol.
IR602
IR603
IR604
Acetylene
Hydrocarbons
0 - 100% LEL and 0 - 100% vol.
(same sensor is suitable for both ranges)
<40 s
4.0
±
0.5 V centred on 2.5 V
see Fractional Absorbance curves
±0.1%
vol.
±30
ppm/°C
500 ppm
(at 5%vol)
±100
ppm
±200
ppm
<±100 ppm
0% vol
(at 2%vol)
±500
ppm
<±1000 ppm
±500
ppm
+0.1% vol
(at 5%vol)
+0.3% vol
(at 5%vol)
+0.5% vol
(at 2.5%vol)
>10 years for 5 V operation
Complies with EN 60079-29-1
See Weather Cap accessory, Page 6
Note 1: The resolution will vary with gas concentration due to the non-linear response to the target gas, therefore the best resolution will be at the low
concentrations and will get worse as the concentration increases.
HANDLING PRECAUTIONS
1. Do not allow sensors to fall on the floor. This could cause lamp filament breakage, damage to the pins and the gas entrance
aperture.
2. Do not apply mechanical force against the gas entrance aperture.
3. Do not immerse sensors in water or other fluids.
4. Protect the gas entrance aperture against dust ingress and sprayed materials.
5. Anti-static handling precautions must be taken.
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