Crowcon
Crowcon IR Plus Fixed Infrared Gas Detector
- SKU:
- CROWCON-IRPLUS
- Availability:
- Usually ships in 3 business days
Description
The Crowcon IR Plus is a fixed-point infrared (IR) hydrocarbon gas detector that uses dual IR waveband technology to deliver real-time, fail-safe detection of methane, propane and other hydrocarbons in the harshest heavy-industrial environments. Its intelligent heated optics and Stay-ClIR hydrophobic reflectors resist dust, moisture and corrosive chemicals, keeping IR Plus stable in 100% RH condensing conditions that cause false alarms and downtime in other detectors.
With a 4-second response time, remote non-intrusive testing, a 316L stainless steel enclosure and a 5-year warranty, IR Plus is built for hard-to-reach locations across oil & gas and heavy industry. Outputs are 3-wire 4-20mA (sink or source) and RS-485 Modbus, with HART 7 on the configurations that list it. Every configuration listed here is an ATEX / IECEx build — cert code 011, or 013 for the SIL functional-safety build — and no UL/CSA configuration is offered in this range.
How to read the configuration code: IRPL-{gas}-{thread}-{certification}-{output}-{display} — gas AA = methane (CH4), AB = propane (C3H8); thread AC = M20, AD = 3/4" NPT; certification 011 = ATEX / IECEx, 013 = ATEX / IECEx (SIL); output AD = 4-20mA Source, AE = 4-20mA Sink, AF = HART / Source, AG = HART / Sink; display 00 = no display, 01 = fitted display, 02 = fitted display with HART, 03 = IS barrier. Every configuration in the dropdown also names its gas, thread, output, display and certification in full.
Common Applications:
Oil & Gas • Petrochemical • Chemical Plants • Water & Wastewater • Steel • Power Generation • Marine & Offshore
Need help selecting the right configuration? Call CPS Calibrations at (865) 900-8844 — every configuration on this page is a factory Crowcon build, and we calibrate what we sell.
- Dual IR waveband technology for real-time, fail-safe hydrocarbon detection
- Intelligent heated optics with Stay-ClIR hydrophobic reflectors resist dust, moisture and corrosive chemicals — no false alarms from condensation
- Fast response: T90 in 4 seconds
- Proven in extreme heat and 100% RH condensing environments, from Middle East heat to North Sea offshore conditions
- Remote, non-intrusive testing and calibration — monitor hard-to-reach areas without direct access
- 316L stainless steel enclosure, IP66
- 3-wire 4-20mA (sink or source) and RS-485 Modbus outputs; HART 7 per configuration
- Display options per configuration: fixed display, fixed display with HART, IS barrier module for a remote display, or no display
- SIL 2 functional safety (IEC 61508 / EN 50402) — the 013 configurations are the SIL builds
- 5-year warranty
| Gases & Ranges (listed configurations) | Methane: 0–100% LEL; Propane: 0–100% LEL |
| Size | 194 x 119 x 94.2 mm (7.6 x 4.7 x 3.7 in) — detector only |
| Weight | 4.1 kg (9.0 lbs); 4.5 kg (9.9 lbs) with fixed display; 4.9 kg (10.8 lbs) with IS barrier module |
| Enclosure material | 316L stainless steel |
| Ingress protection | IP66 (EN 60529) |
| Cable entries | 2 x M20 or 2 x 3/4" NPT cable gland entries (per configuration) |
| Operating voltage | 12–30 V dc |
| Power | 5.5 W maximum (with heater on) |
| Electrical output | 3-wire 4-20mA (sink or source, per configuration); RS-485 Modbus; HART 7 per configuration; 2mA dirty-optics warning; fault signal <3.6mA and/or >21mA |
| Response time (T90) | 4 seconds |
| Performance | Zero drift ±2% FSD per year; repeatability ±2% FSD; linearity ±2% FSD |
| IR source | Intelligent heated optics with Stay-ClIR hydrophobic mirror |
| Operating temperature | -40°C to +70°C (-40°F to +158°F) |
| Humidity | 0–100% RH, including condensing environments |
| Functional safety | SIL 2 — IEC 61508, EN 50402 (013 configurations) |
| Approvals (per configuration) | ATEX / IECEx: II 2 GD Ex db IIC T4 Gb / T6 Gb, Ex tb IIIC T135°C Db (no display); II 2 G Ex db ia IIC T4 Gb (fixed display and IS barrier builds). No UL/CSA configuration is offered in this range |
| EMC compliance | EN 50270, FCC CFR47 Part 15B, ICES-003 |
| Warranty | 5 years |
Product Documents & Resources
- IR Plus User Manual (PDF)
Document files are being added to this page. Need one now? Email info@cpscalibrations.com and we'll send it straight over.