Crowcon IR Plus Infrared Hydrocarbon Gas Detector

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Crowcon IR Plus Infrared Hydrocarbon Gas Detector

IR Plus is an infrared (IR) hydrocarbon detector that uses dual IR waveband technology. Designed to ensure safety in the heavy industrial sector, IR Plus provides real-time, fail-safe detection of methane, propane, and more.

With over 50 years of expertise, Crowcon has engineered IR Plus to deliver unmatched stability, durability, and speed, even in the harshest environments. Intelligent heater optics and STAY-CLIR hydrophobic reflectors resist dust, moisture, and corrosive chemicals, eliminating false alarms and downtime.

The IR Plus responds in just 4 seconds, giving you critical safety information fast, and its tested resilience ensures reliability under extreme conditions, including high temperatures and 100 %RH condensing environments.

Offering a leading 5-year warranty for reduced maintenance costs, the IR Plus also supports flexible, non-intrusive testing with multiple display options and standard output choices like 4-20 mA analogue, RS-485 (Modbus), Local-HART, and HART over 4-20 mA, making it adaptable for various monitoring systems.

Features & Benefits

  • ndustry-leading 5-year warranty, IR Plus offers peace of mind and reduced maintenance costs.
  • Fast Response Time – With a response time of just 4 seconds, IR Plus quickly gives you the information you need.
  • Intelligent Heated Mirror – Heated optical components combined with Stay-clIR coating ensure reliable performance in high temperature & humidity conditions.
  • High Stability in Harsh Conditions – IR Plus outperforms its competitors when operating under high temperature & humidity conditions.
  • Remote Non-Intrusive Testing – Easily test on-site with options for Fixed Display, Remote Display (up to 3m), and local HART.
  • Multiple Outputs – Standard 4-20 mA analogue and RS-485 (Modbus) outputs, plus Local-HART & HART over 4-20 mA options.
GASES Methane, Propane
SIZE 194mm x 119mm x 94.2mm (7.6 x 4.7 x 3.7 ins)
WEIGHT 4.1kg (9.0lbs) IR Plus
4.5kg (9.92lbs) IR Plus with Fixed IR Display
4.9kg (10.8 lbs) IR Plus with IS Barrier Module
0.2kg (0.4 lbs) IR Plus Remote Display
ENCLOSURE MATERIAL 316L Stainless Steel
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 VOLTAGE 12v DC to 30v DC
POWER < 5.5 W
OUTPUT 3-wire 4-20 mA (Sink or Source)
2mA dirty optics warning (at 75% obscuration, configurable)
0mA detector fault signal (at 90% obscuration, configurable)
RS-485 Modbus
HART 7 (optional)
FAULT SIGNAL <3.6 mA and/or >21mA
CONNECTION/PORT ENTRIES 2 x M20 or 2 x ¾”NPT cable gland entry
OPERATING TEMPERATURE -40°C to +70°C (-40°F to 158°F)
OPERATING HUMIDITY 0 to 100% RH condensing
DEGREE OF PROTECTION IP66 (EN60529)
IP ratings do not imply that the equipment will detect gas during and after exposure to those conditions
FUNCTIONAL SAFETY IEC 61508, EN 50402, SIL2
PERFORMANCE STANDARDS IEC EN 60079-29-1*
HAZLOC STANDARDS EN IEC 60079-0, IEC 60079-1, IEC 60079-11, IEC 60079-31
EN IEC 60079-0, EN 60079-1, EN 60079-11, EN 60079-31
APPROVALS ATEX, IECEx, INMETRO, CNEx, PESO, ECAS*, FM*
EMC COMPLIANCE EN50270, FCC CFR47 Part 15B, ICES-003
WARRANTY 5 years

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