Crowcon Vortex - Page 85

Vortex Manual Appendix F
Issue 7 December 2009 77
APPENDICES
3-wire
Quad
Channel
Input
Module
1,4,7,10
3,6,9,12
Connection to Vortex chassis
by cable gland
Sensor
SIG
-
example: Flamgard 4/20
+
2,5,8,11
Vortex
In a system with mixed IS and flameproof sensors in a hazardous area (Zone 1 or 2), the flameproof
sensors can be connected as shown above providing the sensor complies with EN50014 and EN50018
(IEC 60079 –0 and IEC 60079 –1).