Installation In Ignition Protection Areas - ABB TTF350 Operating Instructions Manual

Field mounted temperature transmitters

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5.5.2

Installation in ignition protection areas

Transmitters can be installed in a wide variety of industrial sectors. Systems that requires

ignition protection are divided into zones. As a result, different instruments are also required.

For additional information, refer to the section "Explosion-protection relevant information" or the

data sheet.

5.5.2.1

Zone 0

Transmitter design: II 1G EEx ia IIC T6

Fig. 13

A Sensor

B TTF350 transmitter

The input for the power supply must be in EEx ia design.

When using the transmitter in zone 0, make sure you prevent electrostatic charging of the

temperature transmitter (observe warnings on equipment).

The sensor must be used by the user in accordance with applicable ignition-protection

standards.

OI/TTF350-EN

Zone 0

Explosion-protection zone 0

C Power supply [EEx ia]

D HMI interface for LCD display

TTF350

Electrical connection

Safety area

A00126

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