Specification - Crowcon IRmax Installation, Operating And Maintenance Instructions

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Enclosure material
Dimensions (Detector only)
Weight
Operating voltage
Power
Output
Fault signal
Maximum cable loop resistance
Operating temperature
Humidity
Degree of protection
Explosion protection
Approval code
ATEX
Safety certificate no.
ATEX and IECEx
Functional Safety
Standards
Zones
EMC
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Detecting Gas Saving Lives
316 Stainless Steel
158mm x 75mm x 57mm (6.2 x 2.9 x 2.3 ins)
(without spigot)
IRmax 1.58kg (3.5lbs)
IRmax with Fixed IR Display 2kg (4.4lbs)
IRmax with IS Barrier Module 2.4kg (5.3lbs)
Remote IR Display 0.2kg (0.4lbs)
12Vdc to 30V dc
< 1 W
3-wire 4-20 mA (Sink or Source)
<1 mA
80 Ohms (relative to –ve terminal)
-40°C to +75°C (-40°F to +167°F)
0–100% Relative Humidity
IP66
Flameproof
IRmax (without IR Display)
II 2 GD Exd IIC T6 Gb Tamb = -40°C to +50°C
II 2 GD Exd IIC T4 Gb Tamb = -40°C to +75°C
II 2 GD Ex tb IIIC T135°C Db (-40°C ≤ Ta≤ +75°C)
IRmax with IS Barrier module (remote display)
II 2 GD Exd ia IIC T4 Gb Tamb = -40°C to +75°C
Ex tb ia IIIC T135°C Db Tamb = -40°C to +40°C
IRmax (with Fixed IR Display)
II 2 G Exd ia IIC T4 Gb (Tamb = -40°C to +75°C)
IRmax (without IR Display):
Baseefa 09ATEX0206X and IECEx BAS.09.0109X
IRmax (with IR Display):
Baseefa 09ATEX0220X and IECEx BAS.09.0104X
Certified for use in a SIL 2 system.
Certificate number: Sira 12ATEX1206X
EN60079-0:2006, EN60079-1:2004,
EN60079-29-1: 2007, EN61779,
IEC61508: 2010, EN50402: 2005
Certified for use in Zone 1 or Zone 2
EN50270
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4. Specification