Zone 1 (20) - ABB TTR200 Instrucciones Para La Puesta En Funcionamiento

4.4.4

Zone 1 (20)

Transmitter design: II 2G (1D) EEx [iaD] ib IIC T6
Zone 0, Zone 1,
Fig. 8
A Sensor
B Transmitter in housing with IP 20 level of
protection
For instruments in zone 1, the input for the repeater must be at minimum in [EEx ib] design.
The sensor must be used by the user in accordance with applicable ignition-protection
standards. It can be installed in zone 0, zone 1 or zone 20.
CI/TTR200-X1
Zone 20
J
A
Explosion-protection zone 1
ia
B
C Power supply [EEx ib]
TTR200
Electrical connection
Safety area
ib
ib
C
A00210
EN - 13