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Moore Industries-International, Inc.
- 8 -
User’s Manual
238-760-00K
May 2019
Functional Safety Dual Input Smart HART® Temperature Transmitter
STZ
SECTION 1
Model Numbers and Options
The following section provides details of the Moore Industries model number and the available
options for the STZ.
Moore Industries model numbers for the STZ are structured as follows:
STZ / PRG / 4-20MA / 12-30DC / [HP]
Unit / Input / Output / Power / [Housing]
Refer to
Section 8 Ordering Information
for a quick reference table of ordering information.
Further details are provided for each model below.
INPUT
PRG
The STZ supports one or two RTD, T/C, mV, Potentiometer and Ohms as configurable inputs.
These inputs can be trimmed and scaled, refer to the Configuration sections of this manual for
additional information.
The input field can also specify the specific sensor in a temperature transmitter assembly (see
RTI series data sheets for more information). If a second sensor is required in the assembly then
this needs to be ordered separately.
Note:
While the STZ will accept a dual input sensor configuration the following limitations apply
only when using two input sensors:
STZ
[HP]
– 2-wire and/or 3-wire sensors. 4-wire sensors (RTDs) cannot be used.
STZ [DIN]
– (see figure 3.2) 2-wire and/or 3-wire sensors. 4-wire sensors (RTDs) cannot
be used.
STZ [HPP]
– (see figure 3.4) Sensor 1 can be configured as 2-wire or 3-wire sensor.
Sensor 2 is then restricted to a 2-wire sensor.
OUTPUT
4-20MA
Isolated from Input, with HART digital data pass-through.
POWER
12-42DC
The STZ
is a 2-wire, loop powered instrument. It is powered either by an external
12-42Vdc power supply, or by a DCS (or PLC) input channel that provides power (12-42Vdc) to
the loop.
12-30DC
To specify units for installation in intrinsically safe areas, specify the 12-30Vdc.
This option is not applicable to DIN housing.
