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Series-3500

Smart Differential Pressure Transmitter, HART®, customizable

  • High accuracy (± 0.075% FS)
  • Rangeability (up to 25:1)
  • Completely Configurable using zero/span buttons (no calibrator required)
  • Fail-mode process function
  • Automatic ambient temperature compensation
Series-3500
From TWD 55,479
Smart Differential Pressure Transmitter, HART®, customizable Series-3500 Series-3500
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Product Overview
  • Accuracy ± 0.075 %
  • Accuracy Detail ± 0.075% FS (@ 20°C)
  • Applications Chemicals, Filter Monitoring, Fluid Measurement and Control, Food and Beverage, Fuel and Gas, Level Monitoring and Control, Oil, Petrochemical, Pump Control
  • Compliance Note CE 0518 II 2G ia/db IIC T6/T5 Gb Ta<80°C, T5 / II 2D Ex ia/tb IIIC T85°C/T100°C Db. EN 60079-0:2012+A11:2013,EN 60079-1:2014, EN 60079-11:2012, EN 60079-26:2015, EN 60079-31: Ex ia/db IIC T6/T5 Gb / Ex ia/tb IIIC T85°C/T100° Db. IEC 60079-0:2011, IEC 60079-1:2014-06, IEC 60079-11:2011, IEC 60079-26:2006, IEC 60079-31:2013.
  • Damping Time 0 to 60 s
  • Electrical Connection 1/2 in NPT female Conduit with Screw Terminal block
  • Electrical Output 4 to 20 mA
  • Enclosure Ratings IP66, IP67, NEMA Type 4X
  • Long Term Stability ≤0.075% FSO/3 years
  • Materials Aluminum
  • Materials, Wetted 316L Stainless Steel, FKM
  • Media Compatibility Fuel gases, HVAC / room air, Inert / non-reactive gases, Steam, Hydrogen, Nitrogen, Oxygen
  • MTBF 1,000,000 hours
  • Output Signal Current
  • Measurement Pressure Type Differential
  • Process Connection Size 1/4 in
  • Process Connection Type NPT Female
  • Response Time 16 to 480 ms
  • Series ID Series-3500
  • Supply Power Type DC
  • Supply Voltage 10 to 55 Vdc
  • Thermal Effects < ± 0.05% span/10°C

Supported Applications

The Dwyer Series 3500 is a microprocessor-based smart differential pressure transmitter designed for flow measurement, level monitoring, filter or pump differential pressure applications, and critical process monitoring. The series measures compatible gases, steam, liquids, or vapors.

Operating Conditions & Performance

The Series 3500 delivers an accuracy of ±0.075% FS (@20°C) with a stability of ≤0.075% FSO/3 years and rangeability up to 25:1 turn down. Thermal effects are compensated by transmitter software, specified as <±0.05% span/10°C.

Operating temperature limits are -40 to 185°F (-40 to 85°C) for ambient conditions and -40 to 400°F (-40 to 204°C) for process temperatures when configured with a diaphragm seal (-DS). The unit features an enclosure rating of NEMA 4X IP66/IP67. Response time is programmable from 16 to 480 ms, and damping time ranges from 0 to 60 s.

Configuration Options

The series supports a wide configuration envelope including differential pressure or level applications with flexible calibration via push buttons. Key configurable dimensions include:

  • Housing Materials: Aluminum (-AL) or Stainless steel (-AS).
  • Process Connections: 1/4˝ female NPT (-NF) or diaphragm seal selection (-DS). Diaphragm seals are available as S-P flush (direct mount high side, capillary mount both sides/high side) and S-T extended types.
  • Electrical Connections: Packing gland M20x1.5 (-1), two 1/2˝ female NPT conduit (-2), or screw terminal options.
  • Output Signal: 4-20 mA with HART Communication (rev.5.1).
  • Hazardous Location Approvals: Configurable as ATEX Compliant and IECEx Compliant via -IS (intrinsically safe) or -FP (flameproof) suffixes.

The series supports wetted materials of 316L SS and FPM; with diaphragm seals, the material is 316L SS. Power requirements are 10-55 VDC, with loop resistance for operation from 0 to 1500 Ω.

Key Product Differences

The Series 3500 model number structure defines specific configurations including housing type (-AL or -AS), measuring range codes (e.g., -02 for -10 to 10 in w.c. up to -40 for 0 to 1000 psi), and process connection types. Diaphragm seal variations include direct mount high side, capillary mount both sides, and specific flange sizes such as 2˝ ANSI (A) or 3˝ DN80 (D). Extension lengths are available in increments of 2˝ to 6˝, with capillary lengths configurable from 1 to 20 feet. Optional accessories include stainless steel tag plates (-MT, -ST), mounting brackets (-GB, -SB, A-630, A-631), flanged valve block manifolds (BBV-1F, BBV-22F), and NIST traceable calibration certificates (-NIST).

Accessories

installation hardware

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