Det-Tronics 505 Combustible Gas Detector Transmitter with Combustible Gas Sensor CGS - Manual (Page 21)

18 95-8472 3.1
Special Conditions for Safe Use of CGS:
The CGS Combustible Gas Sensor is certified for use in following ambient temperatures:
- ambient temperature range –40°C to +75°C.
Coding: Ex d IIC T5 Gb
- ambient temperature range –55°C to +125°C.
Coding: Ex d IIC T3 Gb
The actual temperature range is marked on the sensor.
The performance ambient temperature rating is limited to –40°C to +75°C.
The CGS Combustible Gas Sensor can withstand repeated exposures to 125°C for periods up to 12 hours. It is
recommended that the sensor be replaced after maximum 500 hours of exposed to the 125°C temperature condition.
The CGS Combustible Gas Sensor must be used in conjunction with the before mentioned ATEX certified Detector
Electronics Corp. combustible gas detector control units for compliance with EN 60079-29-1 standards.
The CGS Combustible Gas Sensor must only be mounted into the enclosures of the Infiniti Gas Transmitter Model
U9500A Series, the Combustible Gas Transmitter Model 505 Series, the Digital Communication Unit EQ 22xxDCUEX
Series or the Sensor Termination Box Model STB Series.
The actual enclosure must provide a maximum measured reference pressure of 15 bar measured according to
EN 60079-1: 2007, §15.
The CGS Combustible Gas Sensor is to be installed in places where there is a low risk of mechanical damage.
SENSOR TERMINATION BOX (STB)
0539
FM
APPROVED
®
II 2 G
Ex d IIC T4–T6 Gb EN60079-29-1
DEMKO 02 ATEX 131324X
T6 (Tamb = –55°C to +60°C).
T5 (Tamb = –55°C to +75°C).
T4 (Tamb = –55°C to +125°C).
IP66.
EN Standards: EN 50270: 2006
EN 60079-0: 2009
EN 60079-1: 2007
EN 60529: 2001
EN 60529: 1991+A1: 2000
EN 60079-29-1: 2007.
CE MARK
DIRECTIVE CONFORMITY
Low Voltage – 2006/95/EC.
Electromagnetic compatibility – 2004/108/EC
ATEX – 94/9/EC.
The Model 505 Series Combustible Gas Transmitter was tested and found to be compliant with EN50270 when wired
in conduit or with shielded cable. All screen drains shall be terminated to the chassis.