Dwyer Series EDA Electronic Pressure Control is an extremely versatile compact package that can replace a separate gage, two switches, and a transmitter in a system saving money, installation time, and panel space. The EDA incorporates two SPDT relays that have the on and off points fully adjustable over the range for control or alarm use. The front face has LED indicators for switch status and a large backlight two-line display showing process value and indication units. Programming is easy with a simple menu structure, two-line display, and external programming buttons. The weatherproof housing is ideal for a wide variety of applications with panel mount, flush-mount, or pipe mount ability. Features include zero sets, adjustable dampening, menu lockout, peak and valley indication, removable terminal blocks, adjustable time delay, and scalable transmitter output.
- Process control
- Compressor control
- Filter status
- Duct or building static pressure
- Damper and fan control
Service : Compatible liquids and gases.
Wetted Materials : 316L SS.
Housing : Polycarbonate.
Accuracy : ±1% of FS including linearity, hysteresis, and repeatability (indicator and transmitter).
Stability : < ±2% of FS per year.
Pressure Limits : 1.5 x range.
Temperature Limits : Ambient: 20 to 140°F (-6.6 to 60°C); Process: 0 to 176°F (-18 to 80°C).
Compensated Temperature Limits : 32 to 122°F (0 to 50°C).
Thermal Effect : ±0.05% of F.S./°F.
Display : 4-digit backlit LCD (Digits: 0.60″H x 0.33″W).
Power Requirements : 12 to 30 VDC/AC.
Power Consumption : 2.5 watts.
Electrical Connections : Removable terminal blocks with two 1/2″ female NPT conduit connections.
Enclosure Rating : Meets NEMA 4X (IP65).
Warm Up Time : <10 seconds.
Mounting Orientation : Any position.
Weight : 1.18 lbs (535 g).
Agency Approvals : CE, UL.
SWITCH SPECIFICATIONS :
Switch Type : 2 SPDT relays.
Electrical Rating : 5 A @ 120/240VAC, 1 A @ 30 VDC.
Repeatability : ±1% of FS (switching only).
Set Points : Adjustable 0-100% of FS.
Switch Indication : External LED for each relay on the front panel.
Switch Reset : Manual or Automatic.
Output Signal : 4-20 mA, 1-6 VDC, 1-5 VDC, 0-5 VDC, or 0-10 VDC (direct or reverse output selection).
Minimum Excitation : 14 VDC.
Zero and Span Adjustments : Menu scalable within the range.