SC311 Infrared Combustible Gas Sensor
FGD-PDS-SC311-Infrared-Combustible-Gas-Sensor
Product Data Sheet
SC311 Infrared Combustible Gas Sensors
Millennium II Series Sensors
The SC311 delivers the latest technology
advancements in infrared sensing of flammable
gases in a rugged package designed for the most
extreme industrial environments. Hydrocarbon
gas LEL detection is fast, reliable and highly
accurate with only periodic bump testing
recommended and a simple annual calibration
sequence. A full 5 year warranty is included with
a typical sensor life of 8–10 years.
July 2016
Lowest power consumption available
Long range (+2,000 ft.) sensor separation
Industry leading 5 year sensor warranty
Field selectable gas curves available
Immune to poisoning - standard gases detected
include methane, propane, butane, and ethylene
Single or Dual Channel Transmitter
Available
There’s no longer the need to purchase multiple gas speci c
detectors. You have the option to utilize 1 or 2 toxic and/or
combustible gas sensors on a single Millennium II transmitter
and easily mix and match any of our sensor technologies.
Sensor Designed for Durability
& Performance
High resolution, dual-beam optics are employed in the sensor
design which eliminates refl ective surfaces preventing fouling,
fogging or misalignment. Not only does this provide enhanced
overall performance but it also means low power consumption
which equals cost savings and more reliable coverage.
ST3 Sensors shown with JB-MPD-A/S.
Very fast response and highly accurate
Designed to perform in the most extreme
industrial environments
Failsafe Operation
& Advanced Diagnostics
Continuous self-check for several performance parameters as
well as environmental compensation for temperature, pressure
and humidity maintains a high level of sensor performance and
reliability.
SC311 Infrared Combustible Gas Sensor
Specifications
Table 1 - SC311 Infrared Combustible Gas Sensor
Hydrocarbon Combustible Gases [% LEL] Infrared
P/N: SC311(A/S)-100-ASSY
Performance
Response Time T50 ≤ 4.3 s
T60 ≤ 7 s
T90 ≤ 11 s
Accuracy ±5 % LEL
0—100 % LEL
Detection Range
Zero Drift < 5 % full scale per year
Repeatability ±2 % LEL full scale
Electromagnetic Compatibility (EMC) IEC 61000-4-3
Environmental
Temperature -40 °F to +167 °F (-40 °C to +75 °C)
Relative Humidity 0–95 % RH non condensing
Ingress Protection (IP) Rating IP64
Enclosure
Enclosure Material Aluminum (AL6061) or stainless steel (SS316)
Certifications North American
Gases Detected*: Methane, Propane, n-Butane, Iso-Pentane, n-Pentane, Ethane,
Iso-Butane, Ethylene, Hexane
(Field Selectable Curves) *other gases available - contact factory
Class I, Division 1, Groups BCD T5
Class I, Zone 1, AEx/Ex d IIB +H2 T5
-40 °C ≤Ta ≤+75 °C
IECEx
Ex d IIB+H2 T5 Gb
IECEx FMG 12.0007X
INMETRO
Ex d IIB+H2 T4 Gb IP66/67
July 2016
Sensor Separation Up to 2,000 feet/600 meters (18 AWG cabling)
Transmitter Required Millennium II Series (M21, M22, M2B)
Warranty Five years
2 EmersonProcess.com/FlameGasDetection
July 2016
Aluminum Housings 6.3 160 5.6 142 5.4 137 9.7 246 6.0 152
Stainless Steel Housings 5.9 150 5.1 130 4.6 117 8.9 226 6.0 152
Aluminum Housings 5.7 145 2.6 66 2.9 74 4.1 103
Stainless Steel Housings 5.8 147 2.6 66 2.9 74 3.9 100
SC311 Infrared Combustible Gas Sensor
Accessories and Ordering Information
Table 2 - SC311 Infrared Combustible Gas Sensor
JB-MPD-A Termination Box - Digital Output - Stainless Steel
JB-MPD-S Termination Box - Digital Output - Stainless Steel
CCS-1 Calibration Cup/Rain Shield/Splash Guard/Dust Filter with DF-1
CC-INLINE Inline Calibration Adaptor, allows slip stream of gas to be brought to sensor and vented back into main stream
Table 3 - Ordering Information
SC311A-100-ASSY (Aluminum Housing) Hydrocarbon based Combustible Gases, 0–100 % LEL
SC311S-100-ASSY (Stainless Steel Housing) Hydrocarbon based Combustible Gases, 0–100% LEL
Drawings and Dimensions
* Aluminum Shown
A B C D E
Aluminum Housings 6.3 160 5.6 142 5.4 137 9.7 246 6.0 152
Stainless Steel Housings 5.9 150 5.1 130 4.6 117 8.9 226 6.0 152
F G H I
Aluminum Housings 5.7 145 2.6 66 2.9 74 4.1 103
Stainless Steel Housings 5.8 147 2.6 66 2.9 74 3.9 100
3EmersonProcess.com/FlameGasDetection
SC311 Infrared Combustible Gas Sensor
FGD-PDS-SC311-Infrared-Combustible-Gas-Sensor
EmersonProcess.com/FlameGasDetection
Product Data Sheet
July 2016
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