Series DHC Digihelic® Differential Pressure Controller

3-in-1 Differential Pressure Controller

The Series DHC Digihelic® Differential Pressure Controller is a 3-in-1 instrument possessing a digital display gage, control relay switches, and a transmitter with both current and voltage outputs. Combining these 3 features allows the reduction of several instruments with one product, saving inventory, installation time, and cost. The Series DHC Digihelic® differential pressure controller is the ideal instrument for pressure, velocity, and volumetric flow applications reading in several commonly used engineering units with optional unidirectional or bidirectional ranges. These units achieve a 1.5% or better accuracy on extremely low ranges, and 0.5% accuracy for ranges at or above 1 in w.c. Calibration can be performed in the field, making maintaining its accuracy more manageable. Additionally, the Series DHC Digihelic® differential pressure controller includes 2 SPDT control relays with adjustable deadbands. Programming the unit is simple using the built-in menu. With scalable 4-20 mA, selectable voltage process outputs, and selectable Modbus® or BACnet communication, this controller can easily fit into your application.

NIST CALIBRATION available in Product Configurator.

Product Applications

  • SCFM duct flow
  • Filter status
  • Duct or building static pressure
  • Damper and fan control

Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Build Your Custom Part. Use our Product Configurator

Model Description Usually Ships* Price Order
DHC-002
Ships: Same Day
Price: $489.00
Differential pressure controller, range 0.25" w.c. Same Day* $489.00 Order
DHC-003
Ships: Same Day
Price: $489.00
Differential pressure controller, range 0.5" w.c. Same Day* $489.00 Order
DHC-004
Ships: Same Day
Price: $489.00
Differential pressure controller, range 1.0" w.c. Same Day* $489.00 Order
DHC-006
Ships: Same Day
Price: $489.00
Differential pressure controller, range 2.5" w.c. Same Day* $489.00 Order
DHC-008
Ships: Same Day
Price: $489.00
Differential pressure controller, range 5.0" w.c. Same Day* $489.00 Order
DHC-009
Ships: Same Day
Price: $489.00
Differential pressure controller, range 10.0" w.c. Same Day* $489.00 Order
DHC-010
Ships: Same Day
Price: $489.00
Differential pressure controller, range 25.0" w.c. Same Day* $489.00 Order
DHC-011
Ships: Same Day
Price: $489.00
Differential pressure controller, range 50.0" w.c. Same Day* $489.00 Order
DHC-012
Ships: Same Day
Price: $489.00
Differential pressure controller, range 100.0" w.c. Same Day* $489.00 Order
DHC-202
Ships: Same Day
Price: $489.00
Differential pressure controller, range ±0.25" w.c. Same Day* $489.00 Order
DHC-204
Ships: Same Day
Price: $489.00
Differential pressure controller, range ±1.0" w.c. Same Day* $489.00 Order
DHC-206
Ships: Same Day
Price: $489.00
Differential pressure controller, range ±2.5" w.c. Same Day* $489.00 Order
DHC-209
Ships: Same Day
Price: $489.00
Differential pressure controller, range ±10.0" w.c. Same Day* $489.00 Order

Can't find what you need? Build Your Custom Part. Use our Product Configurator

Specifications

Service:
Air and non-combustible, compatible gases.
Wetted Materials:
Consult factory.
Housing Material:
Polycarbonate.
Accuracy:
±0.5% FSO for all ranges, except 0.5 in w.c. @ ±1% FSO, and ranges at or below ±0.25 in w.c. @ ±1.5% FSO.
Stability:
< ±1% / year FSO.
Pressure Limits:
Ranges > 1 in w.c.: 6 psi max operation, 6 psi burst; Ranges ≤ 1 in w.c.: 3.6 psi max operation, 6 psi burst.
Temperature Limits:
-4 to 158°F (-20 to 70°C).
Thermal Effects:
.02% FS / °F (.036% FS / °C).
Power Requirements:
12-28 VDC or 12-28 VAC 50 to 400 Hz.
Power Consumption:
3 VA max.
Output Signal:
4-20 mA (4-wire); 0-10 V, 0-5 V, 1-5 V, and 2-10 V (4-wire).
Communication:
BACnet MS/TP or Modbus® RTU.
Supported Baud Rate:
9600, 19200, 38400, 57600, 76800, 115200.
Device Load:
1/8 unit load.
Zero and Span Adjustments:
Accessible via menus.
Response Time:
400 ms (damping set to 0).
Display:
Backlit LCD display, LED setpoint indicators.
Electrical Connections:
15 pin male high density D-sub connection. 18" (46 cm) cable with 15 conductors included.
Process Connections:
1/8" female NPT ports on side and back.
Enclosure Rating:
NEMA 4X (IP66).
Mounting Orientation:
Not position sensitive.
Size:
5" OD (127 mm) x 1.9" (48 mm) deep.
Weight:
8.8 oz (250 g).
Compliance:
BTL, CE.

SWITCH SPECIFICATIONS
Switch Type:
2 SPDT relays.
Electrical Rating:
1 A @ 30 VAC/VDC.
Set Point Adjustment:
Accessible via menus.

Features

  • One instrument saves inventory, installation time, and money with its measurement versatility and innovative 3-in-1 design
  • Measurement precision via full-scale accuracy of 1.5% or better on extremely low ranges, and 0.5% for ranges at or above 1 in w.c.
  • Safe and secure with security menu programming
  • Simplified field upgrade to DHC pressure controller with optional stainless steel bezel

Options

  • -FC Factory calibration certificate
  • -NIST NIST traceable calibration certificate
  • -SS 304 brushed stainless steel bezel

Accessories

Model Number Description Usually Ships* Price Order
Mounting bracket flush mount Magnehelic® gage in bracket. Bracket is then surface mounted . Steel with gray hammertone epoxy finish. 6.3 A-299 Mounting bracket flush mount Magnehelic® gage in bracket. Bracket is then surface mounted . Steel with gray hammertone epoxy finish. 6.3" x 7.7" x 4.0", 1.30 lb. Same Day $38.25 Order
Flat aluminum bracket for flush mounting Magnehelic® gage. 6.8 A-300 Flat aluminum bracket for flush mounting Magnehelic® gage. 6.8" x 6.0" x .1", .35 lb. Same Day $33.75 Order
Static pressure tip, for 1/4 A-301 Static pressure tip, for 1/4" metal tubing connection. Same Day $12.50 Order
Static pressure tip, for 3/16 A-302 Static pressure tip, for 3/16" and 1/8" ID plastic or rubber tubing. Same Day $11.75 Order
303 SS Static pressure tip with mounting flange, for 3/16 A-302F-A 303 SS Static pressure tip with mounting flange, for 3/16" I.D. rubber or plastic tubing. 4" insertion depth, includes mounting screws Same Day $11.75 Order
1/8 A-330 1/8" pipe plug, socket hex, plated steel. Same Day $4.00 Order
4 A-489 4" 303 SS straight static pressure tip with flange, 1/4" hose barb. Same Day $9.00 Order
1/8 A-331 1/8" NPT filter vent plug, nylon and sintered metal. Same Day $11.25 Order

Model Chart

     DHC DIGHELIC DIFF PRESS CONTROLLER      
     
       DHC-X-OPT      

          1ST SYMBOL (1ST X) RANGE
             001    0.1 IN WC
             002    0.25 IN WC
             003    0.5 IN WC
             004    1 IN WC
             006    2.5 IN WC
             008    5 IN WC
             009    10 INWC
             010    25 INWC
             011    50 INWC
             012    100 INWC
             
             201    ± 0.1 IN WC
             202    ± 0.25 IN WC
             203    ± 0.5 IN WC
             204    ± 1 IN WC
             206    ± 2.5 IN WC
             208    ± 5 IN WC
             209    ± 10 IN WC
             051    25 PA
             052    30 PA
             053    60 PA
             055    125 PA
             056    250 PA
             251    ± 25 PA
             252    ± 30 PA
             253    ± 60 PA
             255    ± 125 PA
             256    ± 250 PA
             082    6 MM WC
             084    25 MM WC
             282    ± 6 MM WC
             284    ± 25 MM WC

          OPTIONS (OPT)
             -COO     CERTIFICATE OF ORIGIN
             -FC      FACTORY CALIBRATION CERTIFICATE
             -NIST    NIST TRACEABLE CALIBRATION CERTIFICATE
             -SS      304 BRUSHED STAINLESS STEEL BEZEL

Product Literature

Manuals

Catalog Pages

Product Data Sheet

Approvals

Drawings

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