IR-8400D Dual Stream Gas Analyzer
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Overview

- High reliability and low maintenance
- Explosion-proof enclosure
- NEMA 7 certified
- LCD display non-contact operation
- Measures up to four gases simultaneously
The Infrared Industries IR-8400D Dual Stream Digital Gas Analyzer is a Non-Dispersive Infrared (NDIR) gas analyzer, capable of simultaneously monitoring up to four target gases in a sample stream for extended periods of time. The IR-8400D is designed specifically for the measurement of Hydrocarbons (HC), Carbon Dioxide (CO2), Carbon Monoxide (CO), and Oxygen (O2). The ranges for the IR-8400D Dual Stream are specified by end-user requirements.
Tailored for the petroleum industry, this instrument is designed specifically for enhanced oil recovery applications as well as for refineries and petroleum transfer stations. For example, it can be configured to monitor the level of CO2 present in the separated gas from production wells using CO2 injection for enhanced oil recovery. The IR-8400D Dual Stream is designed to continuously monitor total hydrocarbons expressed as CH4, C3H8, or C4H10 in process gas streams or for ambient air.
The IR-8400D Dual Stream Gas Analyzer is temperature and pressure compensated to achieve excellent long-term stability and negates the need for frequent calibrations. Built to withstand hostile temperature and weather environments, these analyzers come standard with a LCD display, RS232 output, analog output, and an isolated linear 4-20 mA current output.
Features and Benefits
Electronics
The IR-8400D Dual Stream is made with state-of-the-art electronics which is housed in an explosion-proof enclosure. The analyzer is ruggedly built for long life and a high tolerance to shock and vibration.
Material
Compatibility is assured by using corrosion-resistant materials such as stainless steel sample cells and sapphire windows and by selecting specialized materials for seal and tubing components.
Temperature
The IR-8400D Dual Stream is temperature controlled and compensated for long-term stability and accuracy. Maximized performance and a high resistance to harsh environments are maintained with the use of a temperature-stabilized optical bench and electronics.
Automatic Calibration
An operator can select dates and times that the IR-8400D will automatically perform its own routine calibrations and update itself without any operator assistance.
Applications
- Continuous emissions monitoring
- Process monitoring
- Combustion monitoring for boilers and furnaces
- Monitoring atmospheres in heat-treated and annealing furnaces and process stream control
IR-8400D Dimensions & Side View

IR-8400D Gas Analyzer with IR-1150
Sampling Conditioner System

Specifications
General Specifications | |
---|---|
Performance measurement range | 0 - 100% as specified by customer |
Accuracy | ± 2% of reading or ± 5% full scale |
Repeatability | ± 1% of reading or ± 5% full scale |
Stability - 24-hour period | ± 0.5% full scale zero drift (maximum) ± 1% full scale span drift (maximum) |
Stability - 90-day period | ± 1% full scale zero drift (typical) ± 2% full scale span drift (typical) |
Output noise (RMS) | Less than 0.5% full scale |
Response time | Less than 10 seconds (electronic) |
Warm-up time | Less than 1 hour |
Temperature range | -40° F to 140° F (-40° C to 60° C) |
Gas Sample Requirements | |
Flow rate | 2 scfh (1 LPM) - recommended 4 scfh (2 LPM) - maximum |
Moisture | 0 to 99% non-condensing |
Output | |
Analog | 0 to 100mV standard
0V - 1V, 0V - 5V (optional) 4-20mA (isolated) |
Digital | RS232 bi-directional |
Alarms | Optional |
Gas Flow System | |
Connections | Sample inlet - 1/4" compression fitting
Sample outlet - 3/8" or 1/4" compression fitting |
Materials | 316 SS, sapphire, Teflon, Viton, polypropylene (typical) |
Standard Gases | CO2, HC, CO, O2, NOx, Butane, Propane, Methane |
Power | 90V - 260V AC maximum, 117 Vrms ± 10%, 50 Hz - 60 Hz |
Enclosure (W x L x D) | 10.25" x 10.25" x 9" (26 cm x 26 cm x 22.86 cm) enclosure with display window and attached 3.5" x 2.5" junction box; NEMA 7 (C:, Grp D, E Div 1, 2) |
Weight | 25 lbs. (11.35 kg) |
Warranty | Infrared Industries, Inc. warrants each gas analyzer it manufactures to be free of defects in material and workmanship for a period of one (1) year from the date of delivery. Abuse, misuse or unauthorized changes excluded. Extended warranty available. |
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