Series DHC Digihelic® 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
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
Approvals
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| 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-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 |
