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Tocsin 903 EEx d Controller0 pages
APPLICATION DATA SHEET
WWW.OLIVER-IGD.CO.UK
Transmitters
7
1
TOCSIN 903
EEXd Local Gas Detector
Control and Display Unit
4-20mA Output
Alarm Relay Output Option
Digital Addressable I/O Option
Exd Certified
ATEX Certified
Ingress Protection IP66
Digital Display, Concentration, Alarms and
Fault Status
Easy Calibration One Man Calibration
The Tocsin 903 provides a local display and control facility for the Tocsin 102 series or pellistor gas detectors
in Zone 1 and 2 hazardous areas .In addition to being equipped as a 4 20mA process transmitter the Tocsin
903 can also be fitted with serial addressable capability either using the Oliver IGD data highway to integrate
to 700 or 920 series controllers.The unit is fully compatible with Tocsin 700 and Tocsin 920 Control Panels
which offer both addressable and analogue inputs as well as Modbus serial, outputs
More conventionally the Tocsin 903 can be interfaced directly into DCS/BMS systems using its 4-20mA
Process output. An alarm relay output card is available.
General Specification
Power supply
Electrical Outputs
Temperature
Humidity
Ingress Protection
JB Housing Material
Sensor Housing Material
Explosion Protection
Explosion Protection Sensor
Housing Dimensions (mm)
Cable Entry
Weight (Std Al Housing)
18 to 32V DC With Relay Option Typically 4 W
12 to 32V DC Without Relay Option (Catalytic Only)
3 Wire 4-20mA (4 Wire Addressable Capability)
-10°cto+55°c
15 to 90% RH non-condensing
IP66
Junction Box, Copper Free Aluminium Alloy Epoxy Coated
Option for 316 Stainless Steel and Marine Paint Finishes
Sensor .Stainless Steel 316 S16
Junction Box, EExd IIC T6 11 2 D G
EExdllCT6M2DG C„
110 Diameter x 127 High Plus detector option ^ A
2 x M20, NPT Options
1 x M20 Detector Entry
1.5Kg
d IICT6
0518
II2DG
See Tocsin 102 series Gas Detector data sheet for sensor specification and type
Epsilon07ATEX2287x
International Gas Detectors
CH4 Hrf°2
Pepper Road
Bramhall Technology Park
Stockport
SK7 5BW
England
Tel: +44 (0)161 483 1415
Fax: +44(0) 161 484 2345
Email: sales@ollver-lgd.co.uk
Website: www.ollver-lgd.co.uk
,:HI
023827
Ref ROS44E
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