Honeywell STT850 SmartLine Temperature Transmitter User Guide

Honeywell STT850 SmartLine Temperature Transmitter

Product Information

The STT850/750 SmartLine Temperature Transmitter is a versatile device designed for measuring Ohms, mV, and temperature from RTD’s and thermocouples. It is available in different models to suit various applications.

Features and options:

• Easy installation and setup
• Multiple temperature measurement types
• User-friendly interface with a 3-button assembly
• Optional mounting brackets for vertical or horizontal pipe attachment
• Can be rotated up to 90 degrees from the standard mounting position

Product Usage Instructions

Mounting the Transmitter

To mount the transmitter :

1. Attach the transmitter to a two-inch (50 millimeter) vertical or horizontal pipe using Honeywell’s optional angle bracket or your own bracket.
2. If using Honeywell’s optional wall mounting bracket, refer to the Honeywell drawings 32306827 for pipe mount and 32306828 for wall mount without an adaptor.
3. The transmitter enclosure can be rotated up to a total of 90 degrees from the standard mounting position.

Conduit Entry Plugs and Adapters

For proper installation, use conduit entry plugs and adapters as required. Ensure that all connections are secure and properly sealed to prevent moisture or dust ingress.

Specifications

• Model : STT850/750
• Measurement Types : Ohms, mV, temperature from RTD’s and thermocouples
• Mounting : Vertical or horizontal pipe attachment
• Rotation : Up to 90 degrees from standard mounting position

FAQ

• Q: Can the STT750 transmitter be used with Foundation Fieldbus?
  • A: No, the Foundation Fieldbus feature is only available for the STT850 transmitter.
• Q: What approvals does the STT750 transmitter have?
  • A: The STT750 transmitter does not have MID and Marine approvals.
• Q: Is the STT750 transmitter equipped with advanced diagnostic capabilities?
  • A: No, the STT750 transmitter does not have advanced diagnostic capabilities.

INFORMATION

• 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 Protocols, User Interface (HMI) Operation, Installation, Configuration, Calibration, Maintenance, Parts, Safety and Approvals etc. including options.

Copyrights, Notices and Trademarks

• Copyright 2022 by Honeywell Revision 12, August 2022

Trademarks

• SFC, SmartLine, STT850 are U.S. registered trademarks of Honeywell Inc.
• HART® and FOUNDATION™ Trademarks of Field COMM Group™.

Documentation

To access complete documentation, including language variants, scan the QR code below using your smart phone/device or QR code scanner. Go to the APP store for your free Smartphone QR scanner Or you can follow the URL to access the online SmartLine HUB page. The HUB page will contain direct links to open SmartLine product documentation.

URL

https://hwll.co/SmartLineHUB

QR Code

Note :

This Quick Start Guide is for both STT850 and STT750 transmitters. Please note the following do not apply to the STT750: Foundation Fieldbus, DE, Dual Inputs, Advanced Display, Advanced Diagnostic, MID and Marine approvals.

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. The display will show power up message as “SmartLine Temperature Transmitter”. If there are any critical fault messages on the display, then refer to the STT850 Temperature transmitter user’s manual (34-TT-25-03) document for recommended corrective actions and different screen formats.

Features and options

The STT850 and STT750 are 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

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.

Mounting the Transmitter

Transmitter models can be attached to a two-inch (50 millimeter) vertical or horizontal 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 without adaptor refer to Honeywell drawings 32306827 (No-Adaptor, Pipe mount) and 32306828 (No-adaptor, Wall mount).

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

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) lock washers, 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 in the bracket. Secure the bracket with the nuts, flat washers and lock washers provided.
3. 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 vby the end user). Existing mounting bracket see Figure 5.

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

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

Procedures

Conduit Entry Plugs and Adapters

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.

• 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. – During installation it is mandatory to use the IP66/ TYPE 4X rated glands on both the sides of conduit openings. The glands shall be properly tightened to avoid any air passage.
• The End Cap and Front glass Cap of transmitter shall be properly tightened to ensure no condensation forms inside the unit.

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.

• Only HART available for STT750 transmitter
  For DE operation, add 3.0V to the Loadline values of 250 ohms and above.

• 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. Grounding Details: Connect the Loop Power wiring shield to earth ground only at the power supply end.

Note : The transmitter is not polarity-sensitive.

As shown in Figure 8, each Transmitter has an internal terminal to connect it to earth ground. Connect sensor shield to the internal ground screw. The 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.

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 and is not applicable for Fieldbus option. Terminal #4 is for Digital Output and is not applicable for Fieldbus option. Foundation Fieldbus not applicable to STT750

For HART and DE the Transmitter is designed to operate in a two-wire power/current loop with loop resistance and power supply voltage within the operating range; see Figure 7
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.

Wiring Variations

The above procedures are used to connect power to a Transmitter. For loop wiring and external wiring, detailed drawings are provided for Transmitter installation in non-intrinsically safe areas and for intrinsically safe loops in hazardous area locations.

This procedure shows the steps for connecting power to the transmitter. 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 the SmartLine Transmitter User’s Manual 34-TT-25-03 (STT850) or 34-TT-25-13 (STT750) for details.

Note : After wiring, torque the screws to around 4 to 5(lb-in). Maximum should not exceed 1.1 Nm (10 lb-in). Don’t pull the wires after connecting to the screw terminals.

Input Sensor Wiring

Connect the input sensors as shown in Figures below:

Sensor Grounding :

1. For ungrounded Thermocouple, mV, RTD or ohm inputs connect the input wiring shield(s) to the Internal Ground Connection shown in Figure 8.
2. For grounded Thermocouple inputs, ground the sensor wiring shield at the sensor.
3. Ensure the sensor wiring and signal wiring shield is electrically isolated from the transmitter housing and other grounded fixtures

Figure 9 : HART*/DE/FF Single Input Wiring Diagram.

• Only HART available for STT750 transmitter

Figure 10: DE Dual Input Wiring Diagram

Thermocouple and RTD Connections (not applicable to single input sensor) DE not applicable to STT750 transmitter

• Resistance temperature detector (RTD) measurements use the 3 or 4 wire approach.
• Dual-input units wired for a 4-wire RTD will automatically disable Input 2.
• DE dual input device needs to be power cycled whenever sensor input wiring changed
• Supports dual thermocouple or RTD inputs for differential temperature measurement
• Supports dual thermocouple sensor inputs for redundant sensor operation.
• To operate DE dual input device, it is required to connect both sensor inputs
• To minimize common noise problems in the application, a strap/jumper should be wired between terminals 6 and 8.
  For differential T/C operation on DE Models, a second strap/jumper should be wired between terminals 6 and 7. Do not install this strap for Non-DE models. The output for differential operation is calculated as T/C 1 – T/C 2.

Note : Dual Input is not available on the STT750.

Figure 12 : HART/FF Dual Input Wiring Diagram

• For External C/J compensation, the first input is a thermocouple type, and the second input is a 3-wire PT100 ohm RTD
• The STT850 can have different sensor types on its inputs for split range or averaging applications

Digital Output Wiring

Digital Output is available only on STT850 HART transmitters. The Digital Output should not use the same power supply as used to support the 4-20mA transmitter output. See Figure 13 and Figure 14.
For Intrinsically Safe (IS) applications, the 4-20mA and the Digital Output must use separate IS Barriers.

For best performance, it is recommended that:

• Digital Output wires should be in a separate shielded twisted pair cable, do not use the same cable as used for the Loop or the Sensor wires
• If using the same power supply to operate both the 4-20mA Loop and the Digital Output, then make the interconnections to the power supply terminals directly at the power supply

Note : Intrinsically Safe Installations require the use of separate IS Barriers for the 4-20mA output and for the Digital Output connections

Explosion-Proof Conduit Seal

When installed as explosion proof in a Division 1 Hazardous Location, keep covers tight while the Transmitter is energized. Disconnect power to the Transmitter in the non-hazardous area prior to removing end caps for service.

When installed as non-incendive equipment in a Division 2 hazardous location, disconnect power to the Transmitter in the non-hazardous area, or determine that the location is non-hazardous before disconnecting or connecting the Transmitter wires.

Transmitters installed as explosion proof in Class I, Division 1, Hazardous (classified) locations in accordance with ANSI/NFPA 70, the US National Electrical Code, require a LISTED explosion proof seal to be installed in the conduit, within 18 inches (457.2 mm) of the Transmitter when ¾ inch NPT conduit is used. Crouse-Hind’s type EYS/EYD or EYSX/EYDX are examples of LISTED explosion proof seals that meet this requirement. Transmitters installed as explosion proof with ½ inch NPT conduit, in Class I, Division 1, hazardous (classified) locations follow that of NFPA 70 for installation of explosion proof seal.

using a 1.5 mm Allen wrench.
2| Remove the end cap cover from the terminal block end of the Electronics Housing
3| Feed loop power leads through one end of the conduit entrances on either side of the Electronics Housing. The Transmitter accepts up to 16 AWG wire.
4| Connect the positive loop power lead to the positive (+) terminal and the negative loop power lead to the negative (-) terminal. Note that the Transmitter is not polarity-sensitive.

Shielded, twisted-pair cable such as Belden 9318 or equivalent must be used for all signal/power wiring.

Note: If solid core wire is used strip insulation 1/4 in (6 mm). Once inserted under the square washer the stripped portion should be contained under the square washer. If multi-stranded wire is used, a ferrule is to be used and the stripped wire should be in the insulated portion of the ferrule. The ferrule can also be used on the solid core wire.

After wiring the Transmitter as outline in the next sections, torque the screws to around 4 to 5(lb-in).

Max should not exceed 1.1 Nm (10 lb-in).

Don’t pull the wires after connecting to the screw terminals.

5| Feed input sensor wires through the 2nd conduit entrance and connect wire per wiring diagrams
6| Replace the end cap, and secure it in place

Note : Terminal Screw#6 has thermal paste on the tip of screw intentionally to improve the performance of the transmitter. Do not remove or clean the thermal  paste.

Configuration Guide

This transmitter comes with a standard factory configuration. Consult the nameplate for basic information. Reconfiguration for your particular application can be accomplished by following instructions in the Transmitter User’s manual. This can be found by following the website URL or QR code on page 1 of this document.

Set the Jumpers For HART/DE

• Setting Failsafe Direction and Write Protect Jumpers
• The SmartLine Temperature Transmitter (DE or HART) provides two jumpers to set the desired failsafe action and Write Protect option. See Figure 15.v The top jumper on the electronics module sets the Failsafe direction. The default setting is up-scale failsafe. Up Scale drives the loop to a value greater than 21mA while Down Scale drives the loop to a value less than 3.8mA. You can change the failsafe direction by moving the Failsafe Jumper (top jumper) to the desired position (UP or DOWN). If your transmitter is operating in DE mode, the upscale failsafe action will cause the transmitter to generate a “+ infinity” digital signal, while a downscale failsafe will cause the transmitter to generate a “– infinity” digital signal. The bottom jumper sets the Write Protect. The default setting is OFF (Un-protected).
• When set to the ON (Protected) position, changed configuration parameters cannot be written to the transmitter. When set to the OFF (Un-protected) position, changed configuration parameters can be written to the transmitter.
• ATTENTION : Electrostatic Discharge (ESD) hazards. Observe precautions for handling electrostatic sensitive devices

side of the Transmitter

housing.

3| If there is a Display module, carefully depress the tabs on the sides of the Display Module and pull it off.

If necessary, move the interface

connector from the Communication Module. Do not discard connector

4| Set the Failsafe Jumper (top jumper) to the desired action (UP or DOWN). And the Write Protect jumper (Bottom jumper) to the desired behavior (Protected or Unprotected) See Figure 16 for jumper positioning.
5| If applicable, re-install the Display module as follows:

•   Orient the display as desired.

•   Install the Interface Connector in the Display module such that it will mate with the socket for the display in the Communication module.

•   Carefully line up the display and snap it into place. Verify that the two tabs on the sides of the display

latch.

6| Screw on the end cap and tighten

the end-cap lock. Turn ON Transmitter power.

Failsafe = UP (High)

Write Protect = OFF (Not Protected)

|

Failsafe = DOWN (Low)

Write Protect = OFF (Not Protected)

|

Failsafe = UP (High)

Write Protect = ON (Protected)

|

Failsafe = DOWN (Low)

Write Protect = ON (Protected)

Write Protect Jumper on Foundation Fieldbus (FF)

On Foundation Fieldbus transmitters there is no Failsafe jumper selection but there is a Write Protect jumper. The bottom jumper sets the Write Protect. The default setting is OFF (Un-protected).

When set to the ON (Protected) position, changed configuration parameters cannot be written to the transmitter. When set to the OFF (Un-protected) position, changed configuration parameters can be written to the transmitter. Fieldbus not applicable to STT750

| ATTENTION: Electrostatic Discharge (ESD) hazards. Observe precautions for handling electrostatic sensitive devices.
---|---
| WARNING! PERSONAL INJURY: Risk of electrical shock. Disconnect power before proceeding. HAZARDOUS LIVE voltages greater than

30 Vrms, 42.4 Vpeak, or 60 VDC may be accessible. Failure to comply with these instructions could result in death or serious injury.

Step| Action
1| Turn OFF Transmitter power.
2| Loosen the end-cap lock and unscrew the end cap from the Electronics side of the Transmitter housing.

3

| If applicable, carefully depress the tabs on the sides of the Display Module and pull it off. If necessary, move the interface connector from the Communication Module to the display module to provide the preferred orientation of the display module in the window.

4

| Set the Write Protect jumper (Bottom jumper) to the desired behavior (Protected or Unprotected). See Figure 17 for jumper positioning.
5| Screw on the end cap and tighten the end-cap lock.
6| Turn ON Transmitter power.
Image| Description
---|---
|

Fieldbus SIM Mode = OFF

Write Protect = OFF (Not Protected)

|

Fieldbus SIM Mode = OFF Write Protect = ON (Protected)

|

Fieldbus SIM Mode = ON

Write Protect = OFF (Not Protected)

Appendix A. PRODUCT CERTIFICATIONS

A1. Safety Instrumented Systems (SIS) Installations For Safety Certified Installations, please refer to STT850/750 Safety Manual #34-TT-25-05 for installation procedure and system requirements.

A2. European Directive Information (EU)

1. There is no magnetic sensitive circuitry.
2. Done as part of the DC Power Testing.
3. Product is DC Powered.

A3. Hazardous Locations Certifications

MSG TABLE III/ AGENCY| TYPE OF PROTECTION| COMM OPTION| Electrical Parameters| Ambient Temperature
---|---|---|---|---
| Explosion proof,| | |
| Certificate:| | |
| FM16US0157X:| | |
| Class I, Division 1,

Groups A, B, C, D; Dust Ignition Proof: Class II, III, Division 1, Groups E, F, G; T6..T5

|

4-20 mA/ DE/HART/

FF/ PROFIBUS

|

Note 1

| T95oC, T5: Ta=

-50oC to 85oC T6: Ta= -50oC

to 65oC

| Class 1, Zone 1, AEx db| | |
| IIC T6..T5 Gb| | |
| Zone 21, AEx tb IIIC T| | |
| 95oC Db| | |
| Intrinsically Safe,| | |
| Certificate:| | |
| FM16US0157X:| | |
| Class I, II, III, Division 1,| | |

A/ FM

Approvals

TM (USA)

| Groups A, B, C,

D, E, F, G; T4

Class I Zone 0 AEx ia IIC T4 Ga

FISCO Field Device

| 4-20 mA/ DE/HART

/FF/ PROFIBUS

|

Note 2

| -50oC to 70oC

FISCO:

-50oC to 45oC

| (Only for FF Option)| | |
| Class I Zone 0 AEx ia IIC| | |
| T4 Ga| | |
| Non-Incendive,|

4-20 mA/ DE/HART

/FF/ PROFIBUS

| |
| Certificate:| |
| FM16US0157X:| |
| Class I, Division 2,

Groups A, B, C, D; T4

| Note 1| -50oC to 85oC
| Class I Zone 2 AEx nA| “ic” Note 2|
| IIC T4 Gc| |
| Class I Zone 2 AEx ic IIC| |
| T4 Gc| |
| Enclosure: Type 4X/| ALL| ALL| ALL
| IP66/ IP67| | |
| Standards:
| FM 3600:2018; ANSI/ ISA 60079-0: 2013 ; FM 3615:2018; ANSI/ ISA 60079-1 :
| 2015 ; FM 3616: 2011; ANSI/ ISA 60079-31: 2015 ; FM 3610:2010; ANSI/ ISA
| 60079-11: 2014; FM 3810 : 2018 ; FM 3611:2004; ANSI/ ISA 60079-15 : 2012;
| FM 3810: 2005 ; NEMA 250: 2003; ANSI/ IEC 60529: 2004
| | Explosion proof, Certificate:| | | |
---|---|---|---|---|---|---
| 2689056:| | |
| Class I, Division 1, Groups A,| | |
| B, C, D;

Dust Ignition Proof:

Class II, Division 1, Groups E,

F, G; Class III, Division 1 ;T4 Class I Zone 1 AEx db IIC

|

4-20 mA/ DE/HART/FF

|

Note 1

| T 95oC , T5: Ta=

-50oC to 85oC T6: Ta= -50oC to 65oC

| T6..T5 Gb| | |
| Zone 21 AEx tb IIIC T 95oC Db| | |
| Ex db IIC T6..T5 Gb| | |
| Ex tb IIIC T 95oC Db| | |
| Intrinsically Safe, Certificate:| | |
| 2689056:| | |
| Class I, II, III, Division 1,| | |
| Groups A, B, C, D, E, F, G; T4| | |
| Class I Zone 0 AEx ia IIC T4 Ga| | |
| Class I Zone 2Ex ic IIC T4 Gc

Ex ia IIC T4 Ga

Ex ic IIC T4 GcFISCO Field

| 4-20 mA/ DE/HART/FF|

Note 2

| -50oC to 70oC

FISCO:

-50oC to 45oC

| Device (Only for FF Option)| | |
| Class I Zone 0 AEx ia IIC T4 Ga| | |
B/ CSA-| Class I Zone 2Ex ic IIC T4 Gc| | |
Canada| Ex ia IIC T4 Ga| | |
| Ex ic IIC T4 Gc| | |
| Non-Incendive, Certificate:| | |
| 2689056:| | |
| Class I, Division 2, Groups A,

B, C, D; T4

Class I Zone 2 AEx nA IIC T4

| 4-20 mA/ DE/HART/FF|

Note 1

|

-50oC to 85oC

| Gc| | |
| Ex nA IIC T4 Gc| | |
| Enclosure: Type 4X/ IP66/| ALL| ALL| ALL
| IP67
| Standards:
| CSA C22.2 No. 0-10; CSA 22.2 No. 25-1966 (reaffirmed 2009); CSA C22.2 No.
| 30-M1986 (reaffirmed 2012); CSA C22.2 No. 94-M91; CSA C22.2 No.61010-1:
| 2012; CSA-C22.2No.157-92 (reaffirmed 2016); C22.2 No. 213-2017; C22.2 No.
| 60529-2016; C22.2 No. CSA 60079-0:2015; C22.2 No. 60079-1: 2016; C22.2 No.
| 60079-11: 2014; C22.2 No. 60079-15: 2012; C22.2 No. 60079-31: 2015;
| ANSI/ ISA12.12.01-2017; ANSI/ ISA 60079-0 (12.00.01): 2013; ANSI/ UL60079-1:
| 2015; ANSI/ ISA 60079-11(12.02.01) : 2012; ANSI/ ISA 60079-15(12.12.02) : 2012;
| ANSI/ ISA 60079-31: 2015; FM Class 3615: Aug 2006; FM Class 3616: Dec 2011;
| ANSI/ IEC 60529: Edition 2.1; ANSI/ UL 913: 2015; ANSI/UL 61010-1: 2016;
| UL 50: Ed 11
| | Flameproof, Sira 14ATEX2046X:| | | T 95oC ,T5: Ta=
---|---|---|---|---|---
| II 2 GD

Ex db IIC T6..T5 Gb

| 4-20 mA/

DE/HART/FF

| Note 1| -50oC to 85oC

T6: Ta= -50oC to

| Ex tb IIIC T 95oC Db| | | 65oC
| Intrinsically Safe, Sira| | |
| 14ATEX2046X:| | |
| II 1 GD| | | -50oC to 70oC
| Ex ia IIC T4 Ga

Ex ia IIIC T 95oC Da

| 4-20 mA/

DE/HART/FF

| Note 2|

FISCO:

| FISCO Field Device (Only for FF| | | -50oC to 45oC
| Option)| | |
| Ex ia IIC T4 Ga| | |
C/| Enclosure: IP66/ IP67| ALL| ALL| ALL
ATEX| Standards: EN IEC 60079-0:2018; EN 60079-1:2014; EN 60079-11:2012; EN 60079-
| 31:2014
| Increase Safety/ Intrinsically|

4-20 mA/ DE/HART FF

| |
| Safe, Sira 14ATEX4052X:| |
| II 3 G

Ex ec IIC T4 Gc Ex ic IIC T4 Gc

FISCO Field Device (Only for FF

| Note 1 “ic” Note 2| -50oC to 85oC FISCO:

-50oC to 45oC

| Option)| |
| Ex ic IIC T4 Gc| |
| Enclosure: IP66/ IP67| ALL| ALL| ALL
| Standards:
| EN IEC 60079-0:2018; EN 60079-7:2015; EN 60079-11:2012
| Flameproof, CSAE 22UKEX1035X| | | T 95oC ,T5: Ta=
| II 2 GD

Ex db IIC T6..T5 Gb

| 4-20 mA/

DE/HART/FF

| Note 1| -50oC to 85oC

T6: Ta= -50oC to

| Ex tb IIIC T 95oC Db| | | 65oC
| Intrinsically Safe, CSAE| | |
| 22UKEX1035X| | |
| II 1 GD

Ex ia IIC T4 Ga

Ex ia IIIC T 95oC Da

FISCO Field Device (Only for FF

|

4-20 mA/ DE/HART/ FF

|

Note 2

| -50oC to 70oC FISCO:

-50oC to 45oC

C/ UKCA| Option)

Ex ia IIC T4 Ga

| | |
Increase Safety/ Intrinsic Safety:| | |

-50oC to 85oC FISCO:

-50oC to 45oC

| CSAE 22UKEX1009X| |
| II 3 G| |
| Ex ec IIC T4 Gc| 4-20 mA/| Note 1
| Ex ic IIC T4 Gc| DE/HART/ FF| “ic” Note 2
| FISCO Field Device (Only for FF| |
| Option)| |
| Ex ic IIC T4 Gc| |
| Enclosure: IP66/ IP67| ALL| ALL| ALL
| Standards:
| EN IEC 60079-0:2018; EN 60079-1:2014; EN 60079-11:2012; EN 60079-31:2014
| | Flameproof, SIR 14.0020X| | | T 95oC ,T5: Ta=|
---|---|---|---|---|---|---
| Ex db IIC T6..T5 Gb

Ex tb IIIC T 95oC Db

| 4-20 mA/

DE/HART/FF

| Note 1| -50oC to 85oC

T6: Ta= -50oC

| | | | to 65oC
| Intrinsically Safe, SIR 14.0020X|

4-20 mA/ DE/HART/ FF

| | |
| Ex ia IIC T4 Ga

Ex ia IIIC T4 Da

FISCO Field Device (Only for FF Option)

|

Note 2

| -50oC to 70oC FISCO:

-50oC to 45oC

D/ IECEx| Ex ia IIC T4 Ga| |
Increase Safety/ Intrinsic Safety: SIR 14.0020X| | | |
| Ex ec IIC T4 Gc| 4-20 mA/| Note 1| -50oC to 85oC
| Ex ic IIC T4 Gc| DE/HART/| “ic” Note| FISCO:
| FISCO Field Device (Only for FF| FF| 2| -50oC to 45oC
| Option)| | |
| Ex ic IIC T4 Gc| | |
| Enclosure: IP66/ IP67| ALL| ALL| ALL|
| Standards:|
| EN IEC 60079-0:2018; IEC 60079-1:2014; IEC 60079-11:2011; IEC 60079-
| 31:2013; IEC 60079-7: 2015
| Flameproof :

Ex db IIC T6..T5 Gb

Ex tb IIIC T 95oC Db

| 4-20 mA/ DE/HART/F F|

Note 1

| T 95oC ,T5: Ta=

-50oC to 85oC T6: Ta= -50oC

to 65oC

|
| Intrinsically Safe:| | | |

E/ SAEx

(South Africa)

| Ex ia IIC T4 Ga

Ex ia IIIC T4 Da

FISCO Field Device (Only for FF Option)

Ex ia IIC T4 Ga

| 4-20 mA/ DE/HART/F F|

Note 2

| -50oC to 70oC FISCO:

-50oC to 45oC

Increase Safety/ Intrinsic Safety| | | |
| Ex ec IIC T4 Gc

Ex ic IIC T4 Gc

FISCO Field Device (Only for FF Option)

| 4-20 mA/ DE/HART/F F|

Note 1

| -50oC to 85oC FISCO:

-50oC to 45oC

| Ex ic IIC T4 Gc| | |
| Enclosure: IP66/ IP67| ALL| ALL| ALL|

F/ INMET RO

| Flameproof :

Ex db IIC T6..T5 Gb

Ex tb IIIC T 95oC Db

| 4-20 mA/ DE/HART/ FF|

Note 1

| T 95oC ,T5: Ta=

-50oC to 85oC T6: Ta= -50oC

to 65oC

|
Intrinsically Safe:

Ex ia IIC T4 Ga Ex ia IIIC T4 Da

FISCO Field Device (Only for FF Option)

|

4-20 mA/ DE/HART/ FF

|

Note 2

|

-50oC to 70oC FISCO:

-50oC to 45oC

|
| Ex ia IIC T4 Ga| | |
| Non Sparking:| | |
---|---|---|---|---
Ex ec IIC T4 Gc

Ex ic IIC T4 Gc

FISCO Field Device (Only for FF Option)

| 4-20 mA/ DE/HART/ FF|

Note 1

| -50oC to 85oC

FISCO:

-50oC to 45oC

Ex ic IIC T4 Gc| | |
Enclosure: IP66/ IP67| ALL| ALL| ALL
| Flameproof :

Ex d IIC T6..T5 Gb

Ex tD A21 IP66/IP67 T95oC

| 4-20 mA/ DE/HART/ FF|

Note 1

| T 95oC,T5: Ta= –

50oC to 85oC

T6: Ta= -50oC to 65oC

| Intrinsically Safe:| | |

G/ NEPSI (CHINA)

| Ex ia IIC T4 Ga

Ex ia 20 T95oC

FISCO Field Device (Only for FF Option)

| 4-20 mA/ DE/HART/ FF|

Note 2

| -50oC to 70oC FISCO:

-50oC to 45oC

| Ex ia IIC T4 Ga| | |
| Non Sparking/ Intrinsic Safety:| 4-20 mA/| |
| Ex nA IIC T4| DE/HART/| Note 1| -50oC to 85oC
| Ex ic IIC T4 Gc| FF| |
| Enclosure: IP66/ IP67| ALL| ALL| ALL
H/ KOSHA (KOREA)| Flameproof :

Ex d IIC T4 Gb

Ex tD A21 T 95oC IP 66/ IP67

| 4-20 mA/ DE/HART/FF|

Note 1

|

-50oC to 85oC

| Intrinsically Safe:

Ex ia IIC T4

FISCO Field Device (Only for FF Option)

Ex ia IIC T4

|

4-20 mA/ DE/HART/FF

|

Note 2

| -50oC to 70oC

FISCO:

-50oC to 45oC

| Enclosure: IP66/ IP67| ALL| ALL| ALL
J/ EAC Ex

(Russia, Belarus

| Flameproof :

1 Ex d IIC T4 Gb

Ex tb IIIC T95oC Db

| 4-20 mA/ DE/HART/FF|

Note 1

|

-50oC to 85oC

and| Intrinsically Safe:| | |
Kazakhsta

n)

| 0 Ex ia IIC T4 Ga Ex ia IIIC T4 Db

FISCO Field Device (Only for FF Option)

|

4-20 mA/ DE/HART/FF

|

Note 2

| -50oC to 70oC FISCO:

-50oC to 45oC

| 0 Ex ia IIC T4 Ga| | |
| Non Sparking:| 4-20 mA/| Note 1| -50oC to 85oC
| 2 Ex nAc IIC T4| DE/HART/FF
| Enclosure: IP66/ IP67| ALL| ALL| ALL
| P/ CCoE (India)| Ex ia IIC T4 Ga

FISCO Field Device (Only for FF Option)

Ex ia IIC T4 Ga

|

4-20 mA/ DE/HART/FF

|

Note 2

| -50oC to 70oC FISCO:

-50oC to 45oC

|
---|---|---|---|---|---|---
Ex d IIC T4 Gb| 4-20 mA/ DE/HART/FF| Note 1| -50oC to 85oC
BIS Certification| “For details of BIS certification please visit www.bis.gov.in”
Notes

1. Operating Parameters:

4-20 mA HART (Loop Terminal ) Voltage= 11.8 to 42.4 V at terminals

Current= 4-20 mA Normal (3.8 – 23 mA Faults)

DE Model (Loop Terminal )

Voltage= 15 V to 42.4 V at terminals

Current= 4-20 mA Normal (3.8 – 23 mA Faults)

FF Model (Loop Terminal )

Voltage= 9 to 32 V                              Current= 25 mA

2. Intrinsically Safe Entity Parameters

See Control Drawing in section A.6

IEC 61508 SIL 2 for non-redundant use and SIL 3 for redundant use

SIL 2/3 according to EXIDA and TÜV Nord Sys Tec GmbH & Co. KG under the following standards: IEC61508-1: 2010; IEC 61508-2: 2010; IEC61508-3:

Certification **** 2010.

MID Approval Issued by NMi Certin B.V. in accordance with WELMEC guide 8.8, OIML

(not STT750) R117.1 Edition 2007 (E), and EN 12405-1+A2 Edition 2006. Applicable to

Pt100 sensor only.

MARINE TYPE Lloyd’s Register Certificate Number: 16/60011

APPROVAL **** Environmental categories ENV1, ENV2, ENV3 and ENV5 as defined in

Lloyd’s Register Test Specification No. 1, February 2015

A4. Marking ATEX Directive General:

The following information is provided as part of the labeling of the transmitter:

• Name and Address of the manufacturer

• Notified Body identification: DEKRA Quality B.V., Arnhem, the Netherlands

• For complete model number, see the Model Selection Guide for the model of Temperature Transmitter

• The serial number of the transmitter is located on the Housing data-plate. The first two digits of the serial number identify the year (02) and the second two digits identify the week of the year (23); for example, 0223xxxxxxxx indicates that the product was manufactured in 2002, in the 23 rd week.

Apparatus Marked with Multiple Types of Protection

The user must determine the type of protection required for installation the equipment. The user shall then check the box [?] adjacent to the type of protection used on the equipment certification nameplate. Once a type of protection has been checked on the nameplate, the equipment shall not then be reinstalled using any of the other certification types.

• WARNINGS and Cautions:
• Intrinsically Safe and Non-Incendive Equipment :
• WARNING: SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR USE IN HAZARDOUS LOCATIONS.
• Explosion-Proof/ Flameproof :
• WARNING: DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE MAY BE PRESENT
• Non-Incendive Equipment :
• WARNING: DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE MAYBE PRESENT
• All Protective Measures :
• WARNING : FOR CONNECTION IN AMBIENTS ABOVE 60oC USE WIRE RATED 105oC

A.5 Conditions of Use” for Ex Equipment”, Hazardous Location Equipment or “Schedule of Limitations”:

• Consult the manufacturer for dimensional information on the flameproof joints for repair.
• Painted surface of the STT850 may store electrostatic charge and become a source of ignition in applications with a low relative humidity less than approximately30% relative humidity where the painted surface is relatively free of surface contamination such as dirt dust or oil. Cleaning of the painted surface should only be done with a damp cloth.
• Intrinsically Safe : Must be installed per drawing 50091227
• Division 2 : This equipment is suitable for use in a Class I, Division 2, Groups A, B, C, D; T4 or Non-Hazardous Locations Only.
• The installer shall provide transient over-voltage protection external to the equipment such that the voltage at the supply terminal of the equipment does not exceed 140% of the voltage rating of the equipment.
• The enclosure is manufactured from low copper aluminum alloy. In rare cases, ignition sources due to impact and friction sparks could occur. This shall be considered during Installation, particularly if equipment is installed a Zone 0 location.
• If a charge-generating mechanism is present, the exposed metallic part on the enclosure is capable of storing a level of electrostatic that could become incendive for IIC gases. Therefore, the user/ installer shall implement precautions to prevent the buildup of electrostatic charge, e.g. earthing the metallic part. This is particularly important if equipment is installed a Zone 0 location.

A.6. Control Drawing

INSTRUCTIONS FOR INMETRO

HART/DE Communications

SENSOR CONNECTIONS

Sales and Service

For application assistance, current specifications, pricing, or name of the nearest Authorized Distributor, contact one of the offices below.

ASIA PACIFIC

• (TAC) [email protected]
• Australia Honeywell Limited, Phone : +(61) 7-3846 1255,
• FAX : +(61) 7-3840 6481
• Toll Free 1300-36-39-36, Toll Free
• Fax: 1300-36-04-70
• China – PRC – Shanghai, Honeywell China Inc.
• Phone : (86-21) 5257-4568, Fax: (86-21) 6237-2826
• Singapore, Honeywell Pte Ltd. Phone : +(65) 6580 3278.
• Fax : +(65) 6445-3033
• South Korea, Honeywell Korea Co Ltd. Phone :+(822)799 6114.
• Fax :+(822) 792 9015

EMEA,

• Phone : + 80012026455 or +44
• (0)1202645583.
• FAX : +44 (0) 1344 655554
• Email : (Sales) [email protected] or
• (TAC) [email protected]
• Web : Knowledge Base search engine http://bit.ly/2N5Vldi

AMERICAS, Honeywell Process Solutions,

• Phone: 1-800-423-9883, or 1-215/641-3610.
• (TAC) [email protected].
• Sales 1-800-343-0228.
• Email : (Sales) [email protected]
• Web : Knowledge Base search engine http://bit.ly/2N5Vldi

WARRANTY

WARRANTY/REMEDY

Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Contact your local sales office for warranty information. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace without charge those items it finds defective. The foregoing is Buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use.
While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer to determine the suitability of the product in the application.

For more information
To learn more about SmartLine Transmitters,
visit https://process.honeywell.com
Or contact your Honeywell Account Manager

Process Solutions

• Honeywell 2101 City West Blvd Houston, TX 77042
• Honeywell Control Systems Ltd
• Honeywell House, Skimped Hill Lane
• Bracknell, England, RG12 1EBShanghai City Centre, 100 Jungi Road
• Shanghai, China 20061
• https://process.honeywell.com

34-TT-25-04, Rev.12
August 2022
©2022 Honeywell International Inc

References

• bit.ly/2N5Vldi
• BIS Home - Bureau of Indian Standards
• Home
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