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Series-DHC
Digihelic® Differential Pressure Controller, 4-20 mA Output, 1.5% Accuracy
Models In Stock
- 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
Series-DHC
From
C$
823.48
Models In Stock
Product Overview
- Accuracy Detail ± 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
- Applications Fluid Measurement and Control
- Baud Rate 9600 to 115200
- Burst Pressure 6 psi Maximum
- Compliance BTL, CE
- Data Interface BACnet MS/TP, Modbus RTU
- Device Load 1/8 Unit
- Display Note Backlit LCD display, LED setpoint indicators
- Display Type LCD
- Electrical Connection Sub-D Male Miniature Connector
- Enclosure Ratings IP66, NEMA Type 4X
- Height 1.9 in
- Materials Polycarbonate
- Materials, Wetted Consult Factory
- Media Compatibility Air, Argon, Carbon dioxide, Helium, Nitrogen, Non-Corrosive Dry Gases
- Mounting Orientation None
- Number of Wires 4
- Operating Temperature, Max 158 °F
- Operating Temperature, Min -4 °F
- Outer Diameter 5 in
- Output Detail 4 to 20 mA; 0 to 10 V, 0 to 5 V, 1 to 5 V, 2 to 10 V
- Output Signal Current, Voltage
- Power Consumption 3 VA
- Measurement Pressure Type Differential
- Process Connection Note 1/8" female NPT ports on side and back
- Process Connection Size 1/8 in
- Process Connection Type NPT Female
- Response Time 400 ms
- Response Time Note 400 ms (damping set to 0)
- Set Point Adjustment Menu Configurable
- Stability <± 1% FSO/year
- Supply Power Note 12-28 VDC or 12-28 VAC 50 to 400 Hz
- Supply Power Type AC/DC
- Supply Voltage 12 to 28 Vac/Vdc
- Switch Note 2 SPDT relays, 1 A @ 30 VAC/VDC
- Switch Rating 1 A @ 30 Vac/Vdc
- Switch Type (2) SPDT
- Thermal Effects 0.02% FS/°F
- Weight 8.8 oz
- Zero Setting Adjustable Range Accessible via Menus
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
Accessories
accessories
303 SS Static pressure tip with mounting flange, for 3/16" I.D. rubber or plastic tubing. 4" insertion depth, includes mounting screws
C$19.21
6551 In Stock
installation hardware
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.
C$64.28
0 In Stock
Show Ratings & Reviews
Rated 4 out of
5
by
JustinG from
Replacement controller
Recommended replacement for obsolete instrument. Arrived promptly and in good condition.
Date published: 2024-08-12
Hi. May I ask if your AT-DHC Series comes with the NIST or FC Options? Model: AT-101NA-DHC-255-W2VS112
Simon, per the spec sheet that can be found in this link: https://legacy.dwyer-inst.com/Product/Pressure/DifferentialPressure/Switches/SeriesAT-DHC
This model does not have NIST or FC options, if you have further questions, please email tech@dwyeromega.com
Date published: 2025-05-15
