Transmitters > Pressure Transmitters > Honeywell SmartLine STG700

 

Honeywell SmartLine STG700 Modular Smart Pressure Transmitters

In the 1980s, Honeywell introduced the world's first smart transmitters. In 2012, they're introducing the latest in smart transmitter technology: a fast-responding, high accuracy, modular transmitter series, designed to improve value across your entire plant lifecycle.

Honeywell SmartLine ST700 transmitters can help you reduce project costs, cut startup and commissioning time, lower total maintenance costs, reduce repair time, enhance safety, lower operating costs, reduce unplanned downtime, and improve product quality.

SmartLine ST700 transmitters are designed to replace older ST3000 Series 900 transmitter models. To replace or upgrade an ST3000 Series 100 model, see the new Honeywell ST800.

Key Specifications

  • Rangeability and turndown of up to 100:1
  • Response times as fast as 100 ms
  • Reference accuracy to 0.05% or 0.065% span standard
  • Transmitter stability up to 0.02% span per year for 5 years
  • Built-in static pressure and temperature compensation
  • External zero, span, and configuration capabilities
  • Polarity-insensitive electrical connections
  • Comprehensive onboard diagnostics
  • Full compliance to SIL2 and SIL3 requirements standard
  • Advanced graphic LCD: Eight configurable screens for process variables, bargraphs, and trends
  • Modular design makes it easy to change communication modules, digital displays, and replace hardware or meter body — without buying a new unit!

Model Selection Guide

Use this table to find the right model for your application.  Don't see the option you need? Call a Lesman sales specialist at 800-953-7626

Make one selection from each table section below. Follow the availability column down and check any restriction letters or notes to be sure the unit is available. A finished catalog number looks like this: STG7_ _ - _ _ _ _ _ _ - _ - _ - _ _ _ - _ _ _ - A - _ _ _ _ - _ _ - 0000

Description Catalog Number Availability
Honeywell SmartLine STG700 Series Gauge Pressure Smart Transmitters
Dual Head
 
In-Line
 
5 to 500 PSI (0.35 to 35 PSI)
30 to 3000 PSI (2.1 to 210 PSI)
5 to 500 PSI (0.35 to 35 PSI)
30 to 3000 PSI (2.1 to 210 PSI)
STG740-
STG770-
STG74L-
STG77L-

 
 
 
 

 
 
 
 

 
 
 
 
Meter body Plated CS Head, 316L SS Diaphragm
316 SS Head, 316L SS Diaphragm
A _ _ _ _ _ -
E _ _ _ _ _ -


 
 
Fill Fluid Silicone Oil (DC 200)
Fluorinated Oil CTFE
_ 1 _ _ _ _ -
_ 2 _ _ _ _ -




Process
Connection
None
1/2" NPT Female
_ _ A _ _ _ -
_ _ G _ _ _ -
 
 


Bolt/Nut
Materials
None
Carbon Steel
316 SS
Grade 660 (NACE A268), NACE 304 SS Nuts
_ _ _ 0 _ _ -
_ _ _ C _ _ -
_ _ _ S _ _ -
_ _ _ N _ _ -
 


 



 
 
 

 
 
 
Head Type/
Vent/Drain
Position
None
Single Ended
Single Ended, Side Drain, and Vent
Single Ended, Side Drain, Center SS Vent
Dual Ended, End Drain, and Vent
Dual Ended, End Drain, Center SS Vent
Dual Ended
_ _ _ _ 0 _ -
_ _ _ _ 1 _ -
_ _ _ _ 2 _ -
_ _ _ _ 3 _ -
_ _ _ _ 4 _ -
_ _ _ _ 5 _ -
_ _ _ _ 6 _ -
 


t

t
 


t

t

 
 
 
 
 
 

 
 
 
 
 
 
Gasket None
Teflon® or PTFE (Glass Filled)
Viton® or Fluorocarbon Elastomer
Graphite
_ _ _ _ _ 0 -
_ _ _ _ _ A -
_ _ _ _ _ B -
_ _ _ _ _ C -
 


 



 
 
 

 
 
 
Head/
Connect
Orientation
High Side Left, Low Side Right
Low Side Left; High Side Right
High Side Left, Low Side Right, 90° Head Rotation
1-
2-
3-


h


h

 
 

 
 
Approvals No Approvals Needed
FM Approved
CSA Approved
ATEX Approved
0 -
A -
B -
C -












Electronic
Housing
1/2" NPT Aluminum
1/2" NPT Aluminum with Lightning Protection
A _ _ -
C _ _ -




Outputs 4-20mA DC and HART®
4-20mA DC and Honeywell DE
_ H _ -
_ D _ -




Indicator
and
Interface
No Indicator or Buttons
No Indicator, External Zero/Span Buttons
Indicator
Indicator, External Zero/Span/Config Buttons
_ _ 0 -
_ _ A -
_ _ B -
_ _ C -












Failsafe/
Write Protect
Fail Mode High
Fail Mode Low
Fail Mode High, Write Protect Enabled
Fail Mode Low, Write Protect Enabled
11S-A-
12S-A-
13S-A-
14S-A-












Mounting
Bracket
None
Angle Bracket, Carbon Steel
Angle Bracket, 304SS
Flat Bracket, Carbon Steel
Flat Bracket, 304SS
0 _ _ _
1 _ _ _
2 _ _ _
5 _ _ _
6 _ _ _
















Tagging None
One Wired SS Tag (4 lines x 26 char/line)
Two Wired SS tag (4 lines x 26 char/line)
_ 0 _ _
_ 1 _ _
_ 2 _ _








Conduit
Plugs/
Adapters
None
1/2" NPTM to 3/4" NPTF 316 SS Conduit Adapter
1/2" NPT 316 SS Certified Conduit Plug
Minifast® 4 Pin (1/2" NPT)(not for X-Proof use)
_ _ A0
_ _ A2
_ _ A6
_ _ A8












Certificates Calibration Test & Cert of Conformance (F3399)
Certificate of Origin (F0195)
FMEDA (SIL 2/3) Certification (FC33337)
F1
F5
FE


j


j


j


j
Documentation Printed English User Manual
HART/DE Communications Manual
Safety Manual
Function Block Manual
34-ST-25-44
34-ST-25-47
34-ST-25-37
34-ST-25-49












Restrictions
h Not available with dual ended head type. Also not available with mounting brackets
j Available only with HART® digital output; Requires write protection enabled
t No CRN number available with CSA approval

Videos

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