Series DHII Digihelic® Differential Pressure Controller

Series DHII Digihelic® Differential Pressure Controller

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
Starting at $534.55
Grouped product items
Model Description Availability* Qty Price
DHC-002 Differential pressure controller, range 0.25 in w.c. 2-3 Weeks*
$534.55
DHC-003 Differential pressure controller, range 0.5 in w.c. 2-3 Weeks*
$534.55
DHC-004 Differential pressure controller, range 1.0 in w.c. 2-3 Weeks*
$534.55
DHC-006 Differential pressure controller, range 2.5 in w.c. 2-3 Weeks*
$534.55
DHC-008 Differential pressure controller, range 5.0 in w.c. 2-3 Weeks*
$534.55
DHC-009 Differential pressure controller, range 10 in w.c. 2-3 Weeks*
$534.55
DHC-010 Differential pressure controller, range 25 in w.c. 2-3 Weeks*
$534.55
DHC-011 Differential pressure controller, range 50 in w.c. 2-3 Weeks*
$534.55
DHC-012 Differential pressure controller, range 100 in w.c. 2-3 Weeks*
$534.55
DHC-202 Differential pressure controller, range ±0.25 in w.c. 2-3 Weeks*
$534.55
DHC-204 Differential pressure controller, range ±1.0 in w.c. 2-3 Weeks*
$534.55
DHC-206 Differential pressure controller, range ±2.5 in w.c. 2-3 Weeks*
$534.55
DHC-209 Differential pressure controller, range ±10 in w.c. 2-3 Weeks*
$534.55

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

Product Literature

Manuals

Catalog Pages

Data Sheet

Model Chart

DHC DIGHELIC DIFFERENTIAL PRESSURE CONTROLLER   

      DHC-X-OPT      

          1ST SYMBOL (1ST X) RANGE
             002    0.25 IN WC
             003    0.5 IN WC
             004    1.0 IN WC
             006    2.5 IN WC
             008    5.0 IN WC
             009    10 IN WC
             010    25 IN WC
             011    50 IN WC
             012    100 IN WC
             
             202    ± 0.25 IN WC
             203    ± 0.5 IN WC
             204    ± 1.0 IN WC
             206    ± 2.5 IN WC
             208    ± 5.0 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
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Model Description Availability* Price
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. 1-3 days*
$41.55
A-302 Static pressure tip, for 3/16" and 1/8" ID plastic or rubber tubing. 1-3 days*
$12.65
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 1-3 days*
$12.40
A-330 1/8" pipe plug, socket hex, plated steel. 1-3 days*
$4.40
A-331 1/8" NPT filter vent plug, nylon and sintered metal. 1-3 days*
$12.40
A-489 4" 303 SS straight static pressure tip with flange, 1/4" hose barb. 1-3 days*
$9.50
A-301 Static pressure tip, for 1/4" metal tubing connection. 1-3 days*
$13.40