Honeywell STT750 SmartLine Manual de instrucciones

STT750 SmartLine

Temperature Transmitter

Quick Start Installation Guide

34-TT-25-14, Revision 4, September 2017

Honeywell Process Solutions

This document provides descriptions

and procedures for the Quick Installation

of Honeywell’s family of SmartLine

Temperature Transmitters.

The SmartLine Temperature Transmitter

is available in a variety of models for

measuring Ohms, mV and temperature

from RTD’s and thermocouples.

For full details refer to the manuals

listed below for Protocol, User Interface

(HMI) Operation, Installation,

Configuration, Calibration, Maintenance,

Parts, Safety and Approvals etc.

including options.

Various other documents are available

on the CD supplied with your shipment.

Documents in hardcopy can also be

ordered.

Copyrights, Notices and Trademarks

Revision 4, September 2017

Trademarks

SFC, SmartLine, STT750 are U.S.

registered trademarks of Honeywell Inc.

HART®is a trademark of FieldComm

Group™

Revision history

Rev.1 –1st release

Rev.2 –Display menu updates, CVD

and Angle brackets added

Rev.3 –Display menu updates

Rev.4 - Mounting drawings updated

References

The following list identifies all documents that may be sources of reference for material

discussed in this publication.

Document Title

Document #

STT750 SmartLine Transmitter User’s Manual

34-TT-25-13

STT750 SmartLine Transmitter HART User Manual

34-TT-25-15

SmartLine Temperature Safety Manual

34-TT-25-05

STT750 Pocket Configuration Guide

34-TT-00-02

STT750 Specification

34-TT-03-16

MC Toolkit User Manual (MCT202)

MC Toolkit User Manual (MCT404)

34-ST-25-20

34-ST-25-50

SmartLine Temperature Transmitter

2 Quick Start Installation Guide

Table of Contents

Installation.................................................................................................................... 3

Features and options.................................................................................................... 3

Mounting the Transmitter ............................................................................................. 4

Bracket Mounting..................................................................................................5

Optional Mounting Bracket....................................................................................6

Conduit Entry Plugs and Adapters...............................................................................7

Wiring Connections and Power Up...............................................................................8

Wiring Variations.................................................................................................10

Input Sensor Wiring............................................................................................. 10

Explosion-Proof Conduit Seal .................................................................................... 11

Set the Jumpers For HART........................................................................................ 12

Setting Failsafe Direction and Write Protect Jumpers.........................................12

Configuration Guide ...................................................................................................14

Tables

Table 1 - Jumper Settings..........................................................................................13

Table 2 –Available Display Characteristics ...............................................................14

Table 3 –Basic Display Configuration........................................................................14

Figures

Figure 1 –Electronics Housing Components ............................................................... 3

Figure 2 –STT750 with adapter housing - Horizontal Wall Mounting...........................4

Figure 3 –STT750 Pipe Mount, Vertical ......................................................................4

Figure 4 –STT750 Pipe Mount with adapter housing - Horizontal & Vertical...............5

Figure 5: Flat and Angle Mounting Brackets secured to Horizontal or Vertical Pipe ....6

Figure 6: Electronic Housing Conduit Entries............................................................... 7

Figure 7: STT750 HART/DE Transmitter Operating Ranges........................................ 8

Figure 8: Transmitter 9-Screw Terminal Board and Grounding Screw......................... 9

Figure 9 –STT750 Thermocouple, RTD, mV, Ohm and Volt Connections................ 10

Figure 10: Jumper Location HART............................................................................13

Quick Start Installation Guide 3

INSTALLATION

Evaluate the site selected for the Transmitter installation with respect to the process

system design specifications and Honeywell’s published performance characteristics

for your particular model.

Temperature extremes can affect display quality. The display can become unreadable

at temperature extremes; however, this is only a temporary condition. The display will

again be readable when temperatures return to within operable limits.

FEATURES AND OPTIONS

The STT750 is packaged in one major assembly: the Electronics Housing.

The elements in the Electronic Housing are connected to the process sensors,

measure the process variables, respond to setup commands and execute the software

and protocol for the different temperature measurement types. Figure 1 shows the

assemblies in the Electronics Housing with available options.

Figure 1 –Electronics Housing Components

The Transmitter measures process Temperature and outputs a signal proportional to

the measured process variable (PV), including 4 to 20mA.

An optional 3-button assembly is located under the nameplate and provides a user

interface and operation capability without opening the transmitter to set up and make

adjustments to the Transmitter.

SmartLine Temperature Transmitter

4 Quick Start Installation Guide

MOUNTING THE TRANSMITTER

Transmitter models can be attached to a two-inch (50 millimeter) vertical or horizontal

flat pipe using Honeywell’s optional angle; alternately you can use your own bracket.

Honeywell’s optional wall mounting bracket is also shown below:

For Housing with Adaptor refer to Honeywell drawings 50095917 (Flat pipe mount)

and 50095918 (Wall mount) for detailed mounting specifications.

For Housing without adaptor refer to Honeywell drawings 32306827 (No-Adaptor, Flat

pipe mount) and 32306828 (No-adaptor, Wall mount).

TRANSMITTER ENCLOSURE CAN BE ROTATED A TOTAL OF 90O FROM THE

STANDARD MOUNTING POSITION

Figure 2 –STT750 with adapter housing - Horizontal Wall Mounting

Figure 3 –STT750 Pipe Mount, Vertical

Quick Start Installation Guide 5

Figure 4 –STT750 Pipe Mount with adapter housing - Horizontal & Vertical

* Note 1: In Figures 2, 3 and 4, Housing adapter may not be present on all transmitter

models. If the housing adapter is not present, subtract 24,5mm (0,96 inches) from the

dimension specified.

Refer to the User’s manual for dimension drawings

Bracket Mounting

If you are using an optional bracket, start with Step 1.

1. Align the two mounting holes in the transmitter with the two slots in the

mounting bracket and assemble the (2) M8 hex cap screws, (2)

lockwashers and (2) flat washers provided. Rotate transmitter assembly

to the desired position and torque the M8 hex cap screws to 27,0 Nm/

20,0 Lb-ft maximum.

2. Pipe Mount Option: Refer to

Figure 5. Position the bracket on a 2-inch (50.8 mm) horizontal or

vertical pipe, and install a “U” bolt around the pipe and through the holes

SmartLine Temperature Transmitter

6 Quick Start Installation Guide

in the bracket. Secure the bracket with the nuts, flat washers and lock

washers provided.

5. Wall Mount Option: Position the bracket on the mounting surface at the

desired location and secure the bracket to the mounting surface using

the appropriate hardware (Wall mounting hardware requirements to be

determined and supplied by the end user). Existing mounting bracket,

see Error! Reference source not found.

Figure 5.

For Housings with and without Adapter refer to Honeywell drawing #50124813

(Angle pipe mounting) for detailed specifications.

Optional Mounting Bracket

Position bracket on 2-inch (50.8 mm) and install “U” bolt around pipe and through

holes in bracket. Secure with nuts and lock washers provided. Optional mounting

bracket, see

Figure 5.

HORIZONTAL FLAT PIPE VERTICAL FLAT PIPE

Quick Start Installation Guide 7

HORIZONTAL ANGLE PIPE VERTICAL ANGLE PIPE

Figure 5 - Flat and Angle Mounting Brackets secured to Horizontal or Vertical Pipe

SmartLine Temperature Transmitter

8 Quick Start Installation Guide

CONDUIT ENTRY PLUGS AND ADAPTERS

Procedures

It is the User/Installer’s responsibility to install the Transmitters in accordance with

national and local code requirements. Conduit entry plugs and adapters shall be

suitable for the environment, shall be certified for the hazardous location when

required and acceptable to the authority having jurisdiction for the plant.

CONDUIT ENTRY PRECAUTIONARY NOTICE

THE CONDUIT/CABLE GLAND ENTRIES OF THIS PRODUCT ARE SUPPLIED

WITH PLASTIC DUST CAPS WHICH ARE NOT TO BE USED IN SERVICE.

IT IS THE USER’S RESPONSIBILITY TO REPLACE THE DUST CAPS WITH

CABLE GLANDS, ADAPTORS AND/OR BLANKING PLUGS WHICH ARE

SUITABLE FOR THE ENVIRONMENT INTO WHICH THIS PRODUCT WILL BE

INSTALLED. THIS INCLUDES ENSURING COMPLIANCE WITH HAZARDOUS

LOCATION REQUIREMENTS AND REQUIREMENTS OF OTHER GOVERNING

AUTHORITIES AS APPLICABLE.

Figure 6 - Electronic Housing Conduit Entries

Note. No plugs come installed in the housings. All housings come with temporary

plastic dust protectors (red) installed and are not certified for use in any installation.

Quick Start Installation Guide 9

WIRING CONNECTIONS AND POWER UP

Summary

The transmitter is designed to operate in a two-wire power/current loop with loop

resistance and power supply voltage within the HART and DE operating ranges

shown in Figure 7.

Figure 7 - STT750 HART/DE Transmitter Operating Ranges

Loop wiring is connected to the Transmitter by simply attaching the positive (+) and

negative (–) loop wires to the positive (+) and negative (–) terminals on the

Transmitter terminal block in the Electronics Housing shown in Figure 8.

Connect the Loop Power wiring shield to earth ground only at the power supply end.

Note that the Transmitter is not polarity-sensitive.

SmartLine Temperature Transmitter

10 Quick Start Installation Guide

Figure 8 - Transmitter 9-Screw Terminal Board and Grounding Screw

As shown in Figure 8, each transmitter has an internal terminal to connect it to earth

ground. Optionally, a ground terminal can be added to the outside of the Electronics

Housing. Grounding the transmitter for proper operation is required, as doing so

tends to minimize the possible effects of noise on the output signal and affords

protection against lightning and static discharge.

An optional lightning terminal block can be installed in place of the non-lightning

terminal block for transmitters that will be installed in areas that are highly

susceptible to lightning strikes. As noted above, the Loop Power wiring shield should

only be connected to earth ground at the power supply end.

Note: Terminal pin 9 is not used.

Wiring must comply with local codes, regulations and ordinances.

Grounding may be required to meet various approval body certification,

for example CE conformity. Refer to Appendix A of this document for details.

Note: Terminal #3 is for loop test

The Transmitter is designed to operate in a two-wire power/current loop with loop

resistance and power supply voltage within the operating range; se

With an optional remote meter, the voltage drop for this must be added to the basic

power supply voltage requirements to determine the required Transmitter voltage

and maximum loop resistance. Additional consideration is required when selecting

intrinsic safety barriers to ensure that they will supply at least minimum Transmitter

voltage, including the required 250 ohms of resistance (typically within the barriers)

needed for digital communications. See Figure 7.

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