Transmitters > Level Transmitters > Honeywell SmartLine STF700

 

Honeywell SmartLine STF700 Flange Mount Hydrostatic Pressure Smart Transmitters for Liquid Level

Honeywell SmartLine STF700 hydrostatic pressure transmitters are designed to replace older ST3000 Series 900 transmitter models for liquid level measurement applications.

The new SmartLine family's modular design makes it easy to change or replace communication modules, digital displays, and replace hardware or the meter body — without buying a whole new transmitter unit.

Key Specifications

  • Standard accuracies up to 0.05%
  • Stability up to 0.015% upper range limit per year for 10 years
  • Built-in automatic static pressure and temperature compensation
  • Integral dual seal design for highest safety per ANSI/NFPA 70-202 and ANSI/ISA 12.27.0
  • Rangeability and turndown of up to 100:1
  • External zero, span, and configuration capabilities
  • Polarity-insensitive electrical connections
  • Comprehensive onboard diagnostics
  • Advanced graphic LCD: Eight configurable screens for process variables, bargraphs, and trends
  • Full compliance to SIL2 and SIL3 requirements standard

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

Description Catalog Number Availability
Model Range
Limits (Span)
-400 to 400" H20 (4 to 400" H20) STF724-  
-100 to 100" PSI (1 to 100" bar) STF732-  
-400 to 400" H20 (1 to 400" H20) STF72F-
-100 to 100" PSI (1 to 100" bar) STF73F-  
Meter Body Flush Mount 316SS Wetted Parts, CS Head A_ _ _ _ _ -  
Flush Mount All 316 SS Wetted Parts E_ _ _ _ _ -  
Extended Mt, 316SS Wetted Parts, CS Head M_ _ _ _ _ -  
Pseudo-Flange, CS Head, 316 SS Vent/Drain Valve 1_ _ _ _ _ -  
Fill Fluid Silicone Oil DC200 _ 1 _ _ _ _ -
Fluorinated Oil CTFE _ 2 _ _ _ _ -
Process Connections 1/4" NPT Ref. HD, High Pressure Side Flange _ _ A _ _ _ -
1/4" NPT Ref. HD, Low Pressure Side Flange _ _ C _ _ _ -
Process Head Bolts Carbon Steel Bolts _ _ _ C _ _ -
316 SS Bolts and Nuts For Process Head _ _ _ S _ _ -
Vent/Drain Single Ended Reference Head _ _ _ _ 1 _ -
Dual Ended Reference Head with Vent _ _ _ _ 4 _ -
Gasket Teflon or PTFE (Glass Filled) _ _ _ _ _ A -
Flange 2" ANSI Class 150, Carbon Steel 7 _ _ -  
3" ANSI Class 150, Carbon Steel 1 _ _ -  
4" ANSI Class 150, Carbon Steel 4 _ _ -  
Pseudo Flange 2" ANSI Class 150, No Vent/Drain, 316 SS S _ _ -  
3" ANSI Class 150, No Vent/Drain, 316 SS P _ _ -  
Gasket Ring No Selection _ 0 _ -    
Flush Design, 316 Stainless Steel _ 1 _ -  
Extended Design, 316 Stainless Steel _ 5 _ -  
Extension No Selection _ _ 0 -  
Flush Extension _ _ F - w  
1.87" Diameter, 2" Long Tank Spud _ _ C - v  
1.87" Diameter, 4" Long Tank Spud _ _ D - v  
Approvals No Approvals Required 0 -
FM Explosion Proof A -
CSA Explosion Proof B -
Connection Type Aluminum, 1/2" NPT, No Lightning Protection A _ _ -
Aluminum, 1/2" NPT, Lightning Protection C _ _ -
Output/Protocol 4-20mA DC, HART® Protocol _ H _ -  
4-20mA DC, DE Protocol _ D _ -  
Customer Interface
Selections
None _ _ 0 -
Zero and Span Only _ _ A -
Basic Indicator _ _ B -
Basic Indicator plus Zero/Span/Configuration _ _ C -
Failsafe/Write Protect Fail Mode High 11S - A -
Fail Mode Low 12S - A -
Fail Mode High, Write Protect Enabled 13S - A -
Fail Mode Low, Write Protect Enabled 14S - A -
Customer Tag None 00 _ _ -
One Wired SS Tag (4 Lines, 26 Char/Line) 01 _ _ -
Two Wired SS Tag (4 Lines, 26 Char/Line) 02 _ _ -
Conduit, Plugs,
and Adapters
No Conduit Plugs or Adapters Required _ _ A0,
1/2" NPTM to 3/4" NPTF 316 SS Conduit Adapter _ _ A2,
1/2" NPT 316 SS Conduit Plug _ _ A6,
Certificates Calibration Test Report, Conformance Cert. (F3399) F1
Paper Manuals ST 700 User Manual 34-ST-25-44
ST 700 HART/DE Communications Manual 34-ST-25-47
ST 700 Safety Manual 34-ST-25-37

Videos

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