www.miinet.com Moore Industries-International, Inc.
- 42 -
User’s Manual
238-741-00K
May 2019
Programmable Smart HART Temperature Transmitter
THZ
3
/ TDZ
3
SECTION 3
IECEx Installations
[Ex ia Ga] IIC
Ex nA [ia Ga] IIC T4 Gc
When installed in non-hazardous locations:
The THZ3 shall be mounted within a tool-secured enclosure capable of accepting the applicable wiring
methods specified in IEC 60079-14. The enclosure shall, at a minimum, meet the requirements of IP20.
When installed in Zone 2 locations:
The THZ3 shall be mounted within a tool-secured enclosure which meets the requirements of IEC 60079-
0 and IEC 60079-15 and is capable of accepting the applicable wiring methods specified in
IEC 60079-14. The enclosure shall, at a minimum, meet the requirements of IP54.
The non-metallic parts incorporated in the THZ3 DIN mount housing may generate an ignition-ca-
pable level of electrostatic charge. The THZ3 shall not be installed in a location where the exter-
nal conditions are conducive to the build-up of electrostatic charge on such surfaces. Additionally,
the equipment shall only be cleaned with a damp cloth.
The THZ3 shall be provided with supply transient protection external to the apparatus such that
the voltage at the supply terminals does not exceed 119Vac peak or 119Vdc.
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