Dwyer Digihelic Differential Pressure Controller, Series DH
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DH-004

Series: Series DH Digihelic Differential Pressure Controller Brand: Dwyer Instruments, LLC
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Specifications

Brand

Accuracy

  • ± 0.5 % at 25° C (77° F) Including Hysteresis & Repeatability,

Adjustment Type

  • Adjustable Via Keypad on Face

Approvals & Certifications

  • CE
  • UL

Compensated Temperature

  • 0° to 60° C (32° to 140° F)

Consumption

  • 132-240 Vdc, 7 VA, Max.
  • High Voltage Power: 100-240 Vac
  • Low Voltage Power: 24 Vdc - 130 mA - Max.

Display

  • 4-Digit LCD 0.4” Height LED Indicators for Set Point & Alarm Status

Electrical Connectors

  • Screw Terminals

Electrical Rating

  • 8 A at 240 Vac Resistive

Enclosure, Body Material

  • ABS Plastic, UL Approved 94 V-0

Environmental Protection

  • IP66
  • NEMA 4X

Media

  • Air & Non-Combustible, Compatible Gases

Mounting

  • 1/8” DIN

Output

  • 4-20 mA DC Into 900 ohms, Max.

Power Requirement

  • 50-400 Hz or 132-240 Vdc
  • High Voltage Power: 100-240 Vac
  • Low Voltage Power: 24 Vdc ± 20 %

Response Time

  • 250 milliseconds

Sensor Orientation

  • Mount Unit in Horizontal Plane

Set Point - Decreasing

  • Centimeters WC: 0.635 to 254
  • Feet WC: 0.417 to 8.33
  • hPa: 0.623 to 249.1
  • Inches Hg: 0.368 to 7.356
  • Inches WC: 0.25 to 100
  • kPa: 0.249 to 24.91
  • mbar: 0.623 to 249.1
  • Millimeters Hg: 0.467 to 186.8
  • Millimeters WC: 6.35 to 2,540
  • oz./in²: 0.144 to 57.80
  • Pa: 62.28 to 6,227
  • psi: 0.181 to 3.613

Set Point - Increasing

  • Centimeters WC: 0.635 to 254
  • Feet WC: 0.417 to 8.33
  • hPa: 0.623 to 249.1
  • Inches Hg: 0.368 to 7.356
  • Inches WC: 0.25 to 100
  • kPa: 0.249 to 24.91
  • mbar: 0.623 to 249.1
  • Millimeters Hg: 0.467 to 186.8
  • Millimeters WC: 6.35 to 2,540
  • oz./in²: 0.144 to 57.80
  • Pa: 62.28 to 6,227
  • psi: 0.181 to 3.613

Span & Zero Adjustments

  • Accessible Via Menus

Stability

  • < ± 1 % Per Year

Switch Type

  • 2 SPDT Relays

Temperature Range

  • 0° to 60° C (32° to 140° F)

Thermal Drift

  • 0.036/°C (0.020 %/°F) from 25° C (77° F)

Tube Connection

  • 1/8” I.D. x 1/4” O.D. Tubing (3.175 mm I.D. x 6.35 mm O.D.)

Documentation

Approvals

Catalogs

Manuals

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