Differential Pressure Controller: Series DHC Digihelic® DWYER

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

One instrument saves inventory, installation time, and money with its measurement versatility and innovative 3-in-1 design

Service:	Clean 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:	0.02% FS / °F (.036% FS / °C).
Power Requirements:	12-28 VDC or 12-28 VAC 50 to 400 Hz.
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.
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).
Size:	5" OD (127 mm) x 1.9" (48 mm) deep.
Compliance:	BTL, CE.

The Series DHC Digihelic® is a 3-in-1 differential pressure controller that combines a digital display, control relays, and a transmitter with current and voltage outputs. It offers high accuracy (1.5% for low ranges, 0.5% for higher ranges) and can be easily calibrated in the field, making it ideal for pressure, velocity, and volumetric flow applications.
Simplifies installation and reduces the need for multiple instruments, featuring 2 SPDT relays with adjustable deadbands, scalable 4-20 mA outputs, and support for both Modbus® and BACnet communication, offering flexibility and efficiency for various application