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Industrial Differential Pressure Transmitter, Water-Resistant, ± 0.25% Accuracy
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Series-IDPT

Industrial Differential Pressure Transmitter, Water-Resistant, ± 0.25% Accuracy

  • Supports critical applications due to 0.25% accuracy on most ranges
  • Maintains process quality with a stable accuracy
  • Allows for use in critical processes with pressure ranges as low as 0.25 in w.c.
  • Ensures a long service life in heavy industrial processes with the robust stainless steel housing
Series-IDPT
From $ 565.49
Shop Models
9 Variations available
See all series options below
Series-IDPTData Sheet

Data Sheet
Industrial Differential Pressure Transmitter, Water-Resistant, ± 0.25% Accuracy Series-IDPT Series-IDPT
Product Overview
  • Applications Industrial and Manufacturing
  • Compensated Temperature, Max 57 °C
  • Compensated Temperature, Min 2 °C
  • Display Type N/A
  • Electrical Connection Screw Terminal
  • Electrical Output 4 to 20 mA, 0 to 5 Vdc, 0 to 10 Vdc
  • Enclosure Ratings IP11, NEMA Type 2
  • Long Term Stability ± 0.5% FS/year
  • Loop Resistance 2-Wire: 0-1045 Ω, Vmin=12V+[(.22A)(Rl)]; 3-Wire: Min. load resistance 1 kΩ
  • Materials, Wetted Consult Factory
  • Media Compatibility Clean dry air / inert gas, HVAC / room air, Inert / non-reactive gases, Helium, Nitrogen, Non-Corrosive Dry Gases
  • Mounting Note Not Position Sensitive
  • Number of Wires 2, 3
  • Operating Temperature, Max 70 °C
  • Operating Temperature, Min -20 °C
  • Output Detail Field Selectable
  • Output Signal Current, Voltage
  • Measurement Pressure Type Differential
  • Process Connection Note Barbed SS, ID tubing
  • Process Connection Size 3/16 in
  • Process Connection Type Barbed Fitting
  • Proof Pressure Up to 2 psi
  • Response Time 250 ms
  • Series ID Series-IDPT
  • Span Adjustment Push Button
  • Storage Temperature, Max 80 °C
  • Storage Temperature, Min -30 °C
  • Supply Power Type AC/DC
  • Supply Voltage 2-Wire: 10 to 35 Vdc, 3-Wire: 17 to 36 Vdc/21.6 to 33 Vac
  • Zero Setting Adjustable Range Push buttons accessible by removing the housing cover

Supported Applications

The Dwyer Series IDPT Industrial Differential Pressure Transmitter is designed for monitoring differential pressure in industrial applications. The series utilizes a capacitive sensor on ranges from 0 to 0.25 in w.c. to 0 to 1 in w.c., and a piezo sensor on ranges from 0 to 2.5 in w.c. to 0 to 10 in w.c. It is specified for use with clean, dry, compatible gases.

Operating Conditions & Performance

The Series IDPT offers accuracy options of ±0.5% FS standard or ±0.25% FS high accuracy. Measurement ranges include 0 to ±0.25 in w.c., 0 to 0.25 in w.c., 0 to 0.50 in w.c., 0 to 1 in w.c., 0 to 2.5 in w.c., 0 to ±1250 Pa, 0 to 5 in w.c., and 0 to 10 in w.c. The maximum pressure rating is 2 psi.

Operating conditions are defined by an ambient temperature range of -4 to 158°F (-20 to 70°C) per the instruction manual, while the data sheet specifies a process operating temperature of -4 to 158°F (-20 to 70°C). Storage temperatures range from -22 to 176°F (-30 to 80°C). The response time is listed as 250 ms; however, DIP Switch 2 allows selection between instantaneous (OFF) and 3 seconds (ON).

The enclosure features a rugged, water-resistant housing with an NEMA 2 (IP11) rating. Electrical connections are made via screw terminals or a removable European-style four-conductor terminal block.

Configuration Options

The series supports multiple output configurations and power supply options to accommodate different control system requirements:

  • Output Signals: 4-20 mA DC, 2-wire; or 0-5 VDC/0-10 VDC selectable, 3-wire. Simultaneous Current and Voltage Output is available.
  • Power Supply: 10-35 VDC for the 2-wire version; 17-36 VDC isolated or 21.6-33 VAC for the 3-wire voltage output version.
  • Load Resistance: 0-1045 Ω (2-wire) with a minimum supply of 12V+[(.22A)(RI)]; Minimum load resistance is 1 kΩ (3-wire).

The process connection utilizes barbed stainless steel fittings for 3/16" ID tubing. Wetted materials should be confirmed by consulting the factory.

Key Product Differences

Variants within the Series IDPT are distinguished by accuracy class, measurement range, directionality, and units of measure as defined in the model number guide (e.g., IDPT-12U-IN). The series offers:

  • Accuracy Options: 0.25% or 0.50% full-scale.
  • Directionality: Unidirectional (U) or Bidirectional (B).
  • Units: Inches of water column (IN) or Pascals (PA).

Available options include factory calibration, a NIST traceable calibration certificate, and silicone-free construction. The housing material is stainless steel.

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