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DHII Series Digihelic Differential Pressure Controller (NEMA 4)

RETAIL: 498.75
BASE PRICE: 488.00

     You Can Buy This Product Online!    


DIGIHELIC® II is a 3-in-1 Instrument: Gage, Switch and Transmitter

 Differential Pressure Gauge

In NEMA 4 (IP66) Housing with Large, Bright LCD Display

DIGIHELIC® Differential Pressure Gauge

The DIGIHELIC® II has the same features as the DH Standard Series but it's in a NEMA 4 Enclousure.

The Digihelic® differential pressure controller is a 3-in-1 instrument possessing a digital display gauge, control relay switches, and a transmitter with current output. Combining these three features is a cost efficient way to save on the number of instruments needed to measure pressure, velocity and flow. The Digihelic® can achieve a 0.5% full scale accuracy, making it the perfect controller for glove boxes, hoods and clean rooms.

The Digihelic® allows the selection of pressure, velocity or volumetric flow operation in several commonly used engineering units. 2 SPDT control relays with adjustable dead bands are provided along with a scalable 4-20 mA process output.

The Digihelic® allows you to require a security code prior to any changes to the user-set programming. An easy to use, menu driven keypad also lets you set all of the following: pressure, velocity or flow operation; K-factor for use with flow sensors; rectangular or circular duct for inputting area in flow applications; set point control or set point and alarm operation; high/low alarm; automatic or manual alarm reset; alarm delay; view peak and valley process readings; digital dampening for smoothing erratic process applications; Modbus® communications; and field calibration.


  • Two SPDT control relays with adjustable deadbands

  • 4 to 20 ma Output

  • Allows 120/220 VAC and also 24 VDC power which is often used in control panels

  • Programming is easy

  • Digihelic® controller is the only instrument you will need for all your pressure applications.

  • Easy to Read 4 Digit LED Display

  • Size: 1/8 DIN

  • Process connections: Compression Fittings for 1/8" ID X 1/4" OD tubing

  • Mounting: Mount unit in horizontal plane

  • Serial Communications: Modbus® RTU, RS485. 9600 Baud

  • 12 Programmable Engineering Pressure  Units:

  • 12 Different Ranges Available for Order

Model Number Range (in. wc) Bi-Directional Velocity and Volumetric Flow Available
DHII-002 .2500 Yes Yes
DHII-004 1.00 Yes Yes
DHII-006 5.00 Yes Yes
DHII-007 10.00 Yes Yes
DHII-008 25.00 Yes Yes
DHII-009 50.00 Yes No
DHII-010 100.00 Yes No
Choose Options
Choose Degihelic II Model Number 
Select Mounting Bracket
Dwyer A-438 Mounting Bracket for DHII Series Digihelic Controller (+ $ 12.50)
Select Communications Software
Dwyer Digihelic Links - Communications Softwware (+ $ 49.99)
Select Communications Converter
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