The Rosemount 625IR Fixed Gas Detector provides ultra-fast response times to detect hydrocarbon gases before they can create dangerous situations. Using optical absorption detection technology, the gas detector transmits infrared light through a sapphire lens and reflects light back again to determine gas concentration. Available with a range of options and accessories to improve accuracy inside ducts, provide greater installation flexibility, protect from environmental impacts and more.

Features

• Ultra-fast response times
• Calibrated for life, reducing maintenance and complexity
• Best-in-class performance specifications
• Multi-coloured status indicator LED at front of gas detector
• Heated optics to disperse any moisture on optical surfaces
• Duct versions of the Rosemount 625IR Fixed Gas Detector are available in two lengths – 15 cm (5.9 in) and 35 cm (13.8 in)
• Range of accessories available to help protect the gas detector from environmental impacts, offer installation flexibility and more
  

Specifications

Measurement Type

Hydrocarbon gases: 0-100% LEL

Sensor Type

Optical absorption infrared sensor

Output

Current source or sink 4-20 mA HART® digital communication

Enclosure Rating

IP66/67 and NEMA® 4X

Temperature Range

Storage: -76 to +185 °F (-60 to +85 °C)Operating: -40 to +167 °F (-40 to +75 °C), standard

Accuracy

±2 percent full scale (FS); The accuracy is specified for room temperature, +77 °F (+25 °C).

Power Consumption

< 3 W average, standard configuration

Weight

6.6 lb (3 kg)

Warranty

Five (5) year limited warranty

Certifications/Approvals

• SIL2 rated in accordance with IEC61508, SIL3 rated when used in 1oo2 configuration
  
• North American - Class 1, Division 1, Groups B, C and D
  
• ATEX/IECEx - Ex db ib IIC T5 Gb