www.miinet.com
Moore Industries-International, Inc.
- 35 -
User’s Manual
238-760-00K
May 2019
Functional Safety Dual Input Smart HART® Temperature Transmitter
STZ
Specific Conditions of Use
The following instructions must be adhered to when the STZ is used in hazardous locations and
potentially explosive atmospheres.
Note:
The STZ-DIN with the -AIS Option has its’ own Specific Conditions of Use. See page 38
for instructions.
cFMus Installations
Intrinsically Safe Applications
Class I, Division 1, Groups A-D
Class1, Zone 0, AEx ia IIC, Ex ia IIC
The STZ shall be installed in an enclosure which maintains an ingress protection rating of at
least IP20 and also meets the requirements of ANSI/ISA 61010-1 or C22.2 No 1010-1. The COM
port shall not be used in Hazardous areas.
Note:
Using the box provided on nameplate, the User shall permanently mark type of
protection chosen for the specific installation. Once the type of protection has been marked it
shall not be changed.
INTRINSICALLY SAFE
WIRING
.S. INPUT WIRING
CLASS I DIV 2/ZONE 2
OR SAFE AREA WIRING
ASSOCIATED I
STZ
Refer to Figure 3.1 for detailed electrical connecitons
SECTION 3