Dwyer Digihelic Differential Pressure Controller, Series DHII
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Series DHII Digihelic Differential Pressure Controller

Brand: Dwyer Instruments, LLC
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The Series DHII takes all the fabulous features of the standard Digihelic Pressure Controller and packages them in a robust NEMA 4 (IP66) housing. 

The Digihelic II Pressure Controller combines the 2 SPDT control relays, 4-20 mA process output and Modbus communications with a large, brightly backlit 4 digit LCD display that can easily be seen from long distances. 

The electrical wiring has also been enhanced in the DHII with its detachable terminal blocks. The removable terminals allow the install to easily wire the terminal block outside the housing and then attach to the circuit board, reducing wiring difficulties and installation time on the process. 

The Digihelic II Differential Pressure Control in the new NEMA 4 (IP66) enclosure enables this product to be the perfect choice when mounting pressure controls outdoors in such applications as rooftop air handlers.

This housing also makes it the ideal solution for surface mounting in clean rooms or facilities where water or a cleaning solution is utilized in maintaining plant cleanliness.
Features
  • NEMA 4 housing enables a range of uses both outdoors or indoors where water is present
  • Large backlight LCD display provides local reading from a distance
  • Detachable terminal blocks reduce wiring difficulties saving installation time

Displaying prices & availability for Ohio, United States in CAD. Change location.

Models matching criteria: 11
DHII-014
  • Pressure Range - Inches WC: -1 to 1
100+ In Stock
$2,549.00 CAD
Does not ship to OH, United States
DHII-006
DWYER Differential Pressure Controller, Selectable Engineering Units: 5.000" W.C., .4167 ft. W.C., 127.0 mm W.C., 12.70 cm W.C., .1806 psi, .3678" Hg, 9.342 mm Hg, 12.45 mbar, 1245 Pa, 1.245 kPa, 12.45 hPa, 2.890 oz/in². view more
  • Pressure Range - Inches WC: 0 to 5
100+ In Stock
$1,840.00 CAD
Does not ship to OH, United States
DHII-004
DWYER Differential Pressure Controller, Selectable Engineering Units: 1.000" W.C., 25.40 mm W.C., 1.868 mm Hg, 2.491 mbar, 249.1 Pa, 0.249 kPa, 2.491 hPa, 0.578 oz/in². view more
  • Pressure Range - Inches WC: 0 to 1
100+ In Stock
$1,765.00 CAD
Does not ship to OH, United States
DHII-010
DWYER Differential Pressure Controller, Selectable Engineering Units: 100.0" W.C., 8.333 ft. W.C., 2540 mm W.C., 254.0 cm W.C., 3.613 psi, 7.356" Hg, 186.8 mm Hg, 249.1 mbar, 24.91 kPa, 249.1 hPa, 57.80 oz/in². NOTE: Velocity & Volumetric Flow Not Available. view more
  • Pressure Range - Inches WC: 0 to 100
50+ In Stock
$1,967.00 CAD
Does not ship to OH, United States
DHII-002
DWYER Differential Pressure Controller, Selectable Engineering Units: .2500" W.C., 6.350 mm W.C., 0.635 cm W.C., 0.467 mm Hg, 0.623 mbar, 62.28 Pa, 0.623 hPa, 0.114 oz/in². view more
  • Pressure Range - Inches WC: 0 to 0.25
50+ In Stock
$984.00 CAD
Does not ship to OH, United States
DHII-015
  • Pressure Range - Inches WC: -2.5 to 2.5
50+ In Stock
$631.00 CAD
Does not ship to OH, United States
DHII-007
DWYER Differential Pressure Controller, Selectable Engineering Units: 10.00" W.C., .8333 ft. W.C., 254.0 mm W.C., 25.40 cm W.C., .3613 psi, .7356" Hg, 18.68 mm Hg, 24.91 mbar, 2491 Pa, 2.491 kPa, 24.91 hPa, 5.780 oz/in². view more
  • Pressure Range - Inches WC: 0 to 10
50+ In Stock
$685.00 CAD
Does not ship to OH, United States
DHII-009
DWYER Differential Pressure Controller, Selectable Engineering Units: 50.00" W.C., 4.167 ft. W.C., 1270 mm W.C., 127.0 cm W.C., 1.806 psi, 3.678" Hg, 93.42 mm Hg, 124.5 mbar, 12.45 kPa, 124.5 hPa, 28.90 oz/in². NOTE: Velocity & Volumetric Flow Not Available. view more
  • Pressure Range - Inches WC: 0 to 50
50+ In Stock
$433.00 CAD
Does not ship to OH, United States
DHII-008
DWYER Differential Pressure Controller, Selectable Engineering Units: 25.00" W.C., 2.083 ft. W.C., 635.0 mm W.C., 63.50 cm W.C., .9032 psi, 1.839" Hg, 46.71 mm Hg, 62.27 mbar, 6227 Pa, 6.227 kPa, 62.27 hPa, 14.45 oz/in². view more
  • Pressure Range - Inches WC: 0 to 25
25+ In Stock
$1,957.00 CAD
Does not ship to OH, United States
DHII-012
  • Pressure Range - Inches WC: -0.25 to 0.25
25+ In Stock
$2,543.00 CAD
Does not ship to OH, United States
DHII-017
  • Pressure Range - Inches WC: -10 to 10
5 In Stock
$272.00 CAD
Does not ship to OH, United States

View Details

Specifications

Brand

Accuracy

  • ± 0.5 % at 25° C (77° F) Including Hysteresis & Repeatability, (After 1-Hour Warm-Up)

Adjustment Type

  • Field Adjustable

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 to 240 Vac
  • Low Voltage Power = 24 Vdc - 130 mA - Max.

Display

  • 4-Digit Backlit LCD 0.6” Height. LED Indicators for Set Point & Alarm Status

Electrical Connectors

  • 1/2” Watertight Conduit
  • Euro Typical Removable Terminal Blocks with Watertight Conduit Fittings

Electrical Rating

  • 8 A at 240 Vac Resistive

Enclosure, Body Material

  • Aluminum, Glass

Environmental Protection

  • IP66
  • NEMA 4

Media

  • Air & Non-Combustible, Compatible Gases

NPT Connection

  • 1/8” NPT Female

Output

  • 4-20 mA DC Into 900 ohms, Max.

Power Requirement

  • 50/400 Hz or 132 to 240 Vdc
  • High Voltage Power = 100 to 240 Vac
  • Low Voltage Power = 24 Vdc ± 20 %

Response Time

  • 250 milliseconds (Dampening Set to 1)

Sensor Orientation

  • Mount Unit in Horizontal Plane

Set Point - Decreasing

  • Inches WC: -10 to 100

Set Point - Increasing

  • Inches WC: -10 to 100

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)

  • Air Handlers
  • Clean Rooms

Documentation

Approvals

Catalogs

Manuals

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