Technical specifications:

 

Type Explosion-proof open-path gas detector based on infrared absorption spectroscopy
Gases Wide range of hydrocarbons, including the alkane series from methane to hexane, propylene
Measuring ranges Min. 0 to 4 LEL m, max. 0 to 8 LEL m
Gas category IEC, NIOSH or PTB; selectable
Factory calibration Methane, propane or ethylene, selectable
Operating range 4 to 60 m, 30 to 120 m or 100 to 200 m(distance between transmitter and receiver)
Signal output Analogue Measuring 4 to 20 mA (source and sink)
Pre-warning 3.5 mA (eg. dirty lens or
misalignment),
configurable
Maintenance   3 mA
Beam block warning 2 mA
Faults < 1 mA
Digital HART ® 7
Power consumption -< 5 W receiver, < 9 W transmitter
Operating voltage 18 to 32 VDC (24 VDC nominal)
Response time t 90 < 2 s (under normal operating conditions when using the digital
link)
Skew tolerance +/- 0.6°; +/- 1,6° with Tx S
Ambient conditions Temperature -40 to + 60 °C, -40 to +140 °F
Pressure 800 to 1,100 hPa
Air humidity 0 to 100% rel. humidity, non-condensing
Housing Material Stainless steel AISI 316L “Marine Grade”
Protection class IP66/IP67
Dimensions (W x H x D,
approx.)		 430 x 670 x 170 mm, incl. cable bend with vertical mounting
plate735 x 410 x 170 mm, incl. cable bend with horizontal mounting
plate
Weight (approx.) 9 kg (19.84 lbs), each transmitter and receiver incl. backplate and weather shield
Approvals* ATEX / IECEx Ex II 2(1) G Ex db [ia Ga] IIC T6/T5 Gb

Ex II 2(1) D Ex tb [ia Da] IIIC T80 °C/T95 °C Db

Tamb = -55 °C to +40 °C/+60 °C*
Performance approval EN/IEC 60079-29-4

FM Class 6325

ANSI/ISA-12.13.04
DNV GL Classes: Temperatur D; Humidity B; Vibration A+C; EMC B;
Enclosure D
Safety Integrity Level SIL 2 SC3 Certification by TÜV Nord (EN 61508)

* -40 °C for Heavy Duty/Offshore model
HART ® is a registered trademark of the HART ® Communication Foundation