IR-148
High Tech & Gov. Systems

Infrared gas monitor that detects toxic and combustible gases and solvents.
Features & Benefits
Accurate measurement of target gas vapors with minimum interference
Optional relay module can be configured to 1, 2 or 3 alarm levels
4-20mA
Quick Specs
Response: Updated reading every 7 seconds
Operating temperature: 0-50°C, 32-122°F

Relative humidity: 0-99% non-condensing (no effect on reading) 

Product Overview

The Model IR-148 is an infrared gas monitor that detects toxic and combustible gases as well as solvents. It uses infrared sensing technology, allowing accurate measurement of target gas vapors with minimum interference from other vapors. The Model IR-148 is supplied as a wall mount unit configured for 1, 4 or 8 sampling points measuring down to 1 part per million (ppm). It has two available analog outputs, each which is software selectable between 10% and 100% of full scale: 4-20mA, isolated, current sourcing, and 0-10 VDC. Multiple gas calibrations are available. 
Additional Features and Benefits: 
Infrared sensing technology
Accurate measurement of target gas vapors with minimum interference
Optional relay module can be configured for 1, 2 or 3 alarm levels 
4-20mA

This list contains target gases that can be detected with the IR-148
If your application is not listed, please contact the Customer Business Center to have your application evaluated.
Ranges available are: 0-10ppm, 0-100ppm, 0-1000ppm, 0-1% volume, 0-10% volume, 0-100% volume and 0-100% LEL.
Note: Not all ranges are available on all the gases listed.
A Acetone
Acetonitrile
Acrylonitrile
Ammonia
B Benzene
Butane
Butanol
1,3 Butadiene
1-Butyl Acetate
C Carbon Dioxide (Needs humidity in stream)
Carbon Monoxide (Needs humidity in stream)
Carbon Tetrachloride
Chloroform
Cyclopentane
D 1,2 Dichloroethane
Diethyl Benzene
Diethyl Ether (Ethyl Ether)
Dimethyl Ethylamine
Difluoromethane
Dimethylamine
Dowtherm J
E Ethane
Ethanol
Ethyl Acetate
Ethyl Benzene
Ethylene
Ethylene Oxide
H Halon 1211
Halon 1301
Heptane
Hexafluoro- 1.3 Butadiene
Hexafluoropropylene
Hexane
Hexene
HFE 347E
HFE 7100
I Isceon 89
Isopropanol (2-Propanol)
Isopropyl Alcohol
Isobutane
Isopentane
M Methane
Methanol
Methyl Ethyl Ketone (MEK)
Methyl Fluoride
Methyl Formate
Methyl Iodide
Methyl Isobutyl Ketone (MIBK)
Methyl Methacrylate
Methylene Chloride
N N-Butanol
N-Hexane
N-Pentane
Nitrogen Trifluoride
Nitrous Oxide (N2
O) (Needs humidity in stream)
O Octafluoro Cyclo Butane
Octafluoro Cyclo Pentane
P Pentane
Perchloroethylene (Tetrachloroethylene)
Perfluorohexane
Perfluoromethyl Vinyl Ether (PMVE)
PF5050
Phosgene
Propanal
Propane
Propylene Oxide
Propylene Glycol Methyl Ether Acetate
R Refrigerants:
R-11
R-113
R-114
R-12
R-123
R-124
R-125
R-13
R-134A
R-141B
R-142B
R-143A
R-152A
R-218
R-22
R-227
R-23
R-32
R-401A (Suva MP 39)
R-402A (HP 80)
R-404A (HP 62)
R-407C (AC 9000)
R-408A
R-409A
R-410A (AZ20)
R-500
R-502
R-507
R-508B (Suva 95)
S Solkane 365/227
Styrene
Sulphur Hexafluoride (SF6
)
T Tetrafluoroethylene
Tetra Hydrofuran
Toluene
1,1,1 Trichloroethane
1,1,2 Trichloroethane
Trichloroethylene
Triethylamine
V Vinyl Chloride
Vinyl Fluoride
X Xylenes
(ortho, meta, para or natural)

General Specification
Typical Performance characteristics subject to change, depending on gas to be monitored and full-scale range.
For 0-1000ppm Range Accuracy: 0-100ppm ±2ppm; 100-1000ppm ±10% reading
Linearity: 0-100ppm linear, 100-1000 ±2% of full scale
Sensitivity: 2ppm
Resolution: 1ppm
Note Specifications for other ranges dependant on application. Consult factory.
Reproducibility ±2ppm over 12 months at specified operating conditions
Response Updated reading every 7 seconds
Operating Temperature 0-50°C, 32-122°F
Temperature Effect ±0.3% per °C of reading
Relative Humidity 0-99% non-condensing - no effect on reading
Sample Flow Rate 1.5 liter/minute
Maximum Total Tubing Length 150f with 1
/8” ID
500f with 3
/16” ID
Operating Power Requirements 120VAC ± 10% at 0.56A, or 240VAC; ±10% at 0.3A
Alarm Relays 3 relays @ 8A resistive
Approvals CE approval: EN55011 & EN 50082-2/EN6100-4-2
Outputs: Analog 4-20mA sourcing (dependent on configuration)
RS23C (standard), RS422 or RS485 (optional module)
Physical Enclosure Information
NEMA 4 Dimensions: 460 x 410 x 180mm (18” x 16 x 7”) (H x W x D)
Weight: 19kg (40lbs)
19” Rack Mount Dimensions: 180 x 450 x 390mm (7” x 175
/8 x 151
/4”) (H x W x D)
Weight: 9kg (19lbs)