STATUS SCIENTIFIC CONTROLS MCU3 - Hazardous Area Installation Using Barrier Type FGDIO

STATUS SCIENTIFIC CONTROLS
MCU System Installation and Hardware Configuration Manual
TD06/001
Issue:
6
Change Note:
1696
Page 3-7
3.3.1 Hazardous area installation using barrier type FGDIO
A Status Scientific Controls barrier type FGDIO can be fitted to each output channel module
within the MCU unit.
The following diagrams show the connections between FGD Detector heads and an Input Module
fitted with an FGDIO Intrinsically Safe Barrier:
I.S. Barrier Terminals
(Type FGDIO)
Note: Distribution
board Link J1 should
not be fitted.
Sig
–
–
Pwr +
1
2
3
4
24
MCU
Input Module
Connection diagram for
FGD 2 & 3 Oxygen or Toxic
Detectors in a Hazardous area
- +
4-20mA Loop
Screen
Hazardous area Safe Area
24
MCU
Input Module
I.S. Barrier Terminals
(Type FGDIO)
Note: Distribution
board Link J1 should
not be fitted.
Sig
–
–
Pwr +
1
2
3
4
Sig 0 +
Screen
Connection diagram for
FGD2 & 3 Flammable Detectors
in a Hazardous area
Hazardous area Safe Area