Gas detection3
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Personal protective equipment2
MSA IR400 — point infrared detector for hydrocarbon gases
The IR400 is a point infrared (IR) detector for continuous monitoring of hydrocarbon gases and vapors within the lower explosive limit range (LEL). It offers one of the fastest response times in the industry — T90 below 3 seconds, even with a splash guard installed. All electronics are housed in an explosion-proof enclosure, and the detector requires no routine calibration, reducing costs and service time. Available in configurations with 4-20 mA analog output, Modbus and HART.
The IR400 is a point infrared (IR) detector for continuous monitoring of hydrocarbon gases and vapors within the lower explosive limit range (LEL). It offers one of the fastest response times in the industry — T90 below 3 seconds, even with a splash guard installed. All electronics are housed in an explosion-proof enclosure, and the detector requires no routine calibration, reducing costs and service time. Available in configurations with 4-20 mA analog output, Modbus and HART.
Key features
- T90 response time ≤ 3 seconds — one of the fastest in the industry, even with a splash guard installed.
- No routine calibration required — lower maintenance costs.
- Standard 4-20 mA output — remote alarm and fault signalling.
- Multiple communication options (4-20 mA, Modbus, HART) — full control and status in the control room.
- Heated optics eliminate moisture condensation.
- Dirty optics signalling — distinguishes an actual fault from the need for cleaning.
- Short calibration time reduces reference gas consumption, lowering costs and service time.
- All electronics housed in an explosion-proof enclosure — local processing of detector data.
Technical specification
| Parameter | Value |
|---|---|
| Sensor type | infrared (IR), point |
| Measuring range | 0-100% LEL for hydrocarbons |
| Response time (T90) | ≤ 3 s (also with splash guard fitted) |
| Signal output | 4-20 mA (standard), optionally Modbus, HART |
| Housing | explosion-proof (Ex d), with heated optics |
| Calibration | no routine calibration required; quick calibration with reference gas if needed |
| Diagnostics | dirty optics signalling |
| Market applications | general industry, oil & gas, power/utilities |
Applications
Refineries and petrochemical plants, production platforms, LNG/LPG terminals, power plants and industrial facilities — anywhere fast detection of hydrocarbon gases and vapors is required in hazardous areas.
Frequently asked questions (FAQ)
How quickly does the IR400 respond to the presence of gas?
The T90 response time is a maximum of 3 seconds, even with a splash guard fitted.
Does the IR400 require frequent calibration?
No — the detector does not require routine calibration, which significantly reduces maintenance costs and service time.
What output signals does the IR400 offer?
A standard 4-20 mA output, plus optional Modbus and HART, enabling full integration with the control room.
Brand and service
MSA Safety — authorized sales, selection, design and service of systems by SafeTech (Suchy Dwór near Gdynia).
Why SafeTech
- 23 years of experience in gas detection (the company has operated since 2003).
- Authorized distributor and authorized service station (including Honeywell, Dräger, GfG, MSA).
- In-house service, calibration, certification and adjustment in Suchy Dwór near Gdynia — service throughout Poland.
- Training and technical support (SafeTech Safety Academy).
Availability and service — Gdynia and the Tricity
MSA IR400 — point infrared detector for hydrocarbon gases — sales, selection, calibration and service in Gdynia (Suchy Dwór, on the border of Gdynia and the Kosakowo municipality). We serve the Tricity (Gdańsk, Sopot, Gdynia), Rumia, Reda, Wejherowo, the Pomeranian Voivodeship and all of Poland. Ask about a quote and availability.
