Oval ALTImass CA004 - 11.2 System Block Diagram (Control Drawing)

L-737-3-E
87
11.2 System Block Diagram (Control Drawing)
HART Communication and Modbus Communication
Fig.11.2.1
CA004
(INTRINSICALLY SAFE APPARATUS)
PA0K
(INTRINSICALLY SAFE RELATED APPARATUS)
HAZARDOUS AREA NON HAZARDOUS AREA
GENERAL APPARATUS
EXTERNAL
CIRCUIT
DETECTOR BOARD
POWER
AC100-220V 50/60Hz
or
DC20-30V
CA004
(INTRINSICALLY
SAFE APPARATUS)
HAZARDOUS AREA NON HAZARDOUS AREA
POWER
AC100-220V 50/60Hz
or
DC20-30V
EXTERNAL
CIRCUIT
PA0K
(INTRINSICALLY SAFE RELATED APPARATUS)
GENERAL APPARATUS
TERMINAL BOX
DETECTOR BOARD
SEPARATE DETECTOR BOARD
DEDICATED CABLE
(TERMINAL BOX FOR INTRINSICALLY
SAFE EXPLOSIONPROOF)
Integrally mounted transmitter
Separately mounted transmitter
TERMINAL BOX
FLAMEPROOF ENCLOSURE (d)
FLAMEPROOF ENCLOSURE (d)