Field Instruments

General

Part of the SmartLine® family of products, the STF700 is a flange mounted level transmitter suitable for monitoring, control and data acquisition featuring piezoresistive sensor technology. STF700 transmitters may be directly mounted onto a tank flange and are offered with a variety of tank connections including various flush and extended diaphragm configurations. STF700 offers high accuracy and stability over a wide range of level applications. The SmartLine family is also fully tested and compliant with Experion ® PKS providing the highest level of compatibility assurance and integration capabilities. SmartLine easily meets the most demanding application needs for pressure measurement applications.

Features

• Accuracies up to 0.05% of span standard & 0.04% of span optional
• Stability up to 0.02% of URL per year for 10 years
• Automatic static pressure & temperature compensation
• Rangeability up to 100:1
• Response times as fast as 100ms
• Alphanumeric display capabilities
• External zero, span, & configuration capability
• Polarity insensitive electrical connections
• Comprehensive on-board diagnostic capabilities
• Integral Dual Seal design for highest safety based on ANSI/NFPA 70-202 and ANSI/ISA 12.27.0
• World class overpressure protection
• Full compliance to SIL 2/3 requirements.
• Modular design characteristics
• Available with additional 4-year warranty

Specifications

• Make: Honeywell  

• Model: STF724-E1AS6A-W1F-C-DHB-11S-A-00A0-0000

• Product type : STF700 Flange Mounted Liquid Level

• Measurement Range Std Accuracy : STF724 =
  • URL : 400 (1000)
  • LRL : -400 (-1000)
  • Max Span : 400 (1000)
  • Min Span : 4 (10)
  • Units : " H2O (mbar)

• Process Wetted Heads & Diaphragm Materials : E =
  • Design : Flush
  • Ref. Head : 316 SS
  • Vent Drain Valve on Ref. Head : 316 SS
  • Barrier Diaphrm. (wetted) : 316L SS
  • Diaphrm. Plate (wetted) : 316L SS

• Fill Fluid (Meter Body & Flange) : 1 = Silicone Oil 200

• Process Connection : A = 1/4 NPT Reference Head, High Pressure Side Flange

• Bolts for Process Heads : S = 316 SS Bolts

• Vent/Drain Type/Location : 6 =
  • Ref. Head Type : Dual Ended
  • Vent Type : Vent/Plug
  • Location : Side/End
  • Vent Material : Matches Head Material

• Gasket Material : A = Teflon® or PTFE (Glass Filled)

• Flange (ANSI Flanges have 125-500 AARH Surface Finish) : W = 2" ANSI Class 150, 316 SS (non-wetted) Flange Material, 304 SS (non-wetted) Threaded Nut Ring Material

• Gasket Ring (wetted) : 1 = Flush Design, 316L SS

• Extension (wetted) : F = Flush

• Approvals: C = ATEX Explosion proof, Intrinsically Safe & Non-incendive

• Electronic Housing Material & Connection Type : D =
  • Material : Polyester Powder Coated Aluminum
  • Connection : M20
  • Lightning Protection : Yes

• Output/ Protocol : H = 4-20mA dc Analog Output, HART Protocol

• Customer Interface Selections : B =
  • Indicator : Basic
  • Ext Zero, Span & Config Buttons : None
  • Languages : English

• Application Software : 1 = Standard Diagnostics

• Output Limit, Failsafe & Write Protect Settings : 1 =
  • Write Protect : Disabled
  • Fail Mode : High> 21.0mAdc
  • High & Low Output Limits : Honeywell Std (3.8 - 20.8 mAdc)

• General Configuration : S = Factory Standard

• Accuracy and Calibration : A =
  • Accuracy : Standard
  • Calibrated Range : Factory Std
  • Calibration Qty : Single Calibration

• Mounting Bracket : 0 = None (not required with flange mount unit)

• Customer Tag : 0 = No customer tag

• Unassembled Conduit Plugs & Adapters : A0 = No Conduit Plugs or Adapters Required

• Factory : 0000 = Factory Identification

Fieldinstruments.lk
50/3, Angampitiya Rd, Ethul Kotte, Sri Lanka. 10100.
Phone: +94718555888 Email: info@fieldinstruments.lk