Features and Benefits
- Can replace separate gages, two switches, and a transmitter in a system, saving money, installation time, and panel space with its versatile and compact functionality.
- Meets simple and complex application needs with fully programmable software.
- Easily test switch and transmitter output function through the test mode that simulates input over the range without pressuring the system.
- Protection in case of sensor failure, over pressure, high temperature limit, low temperature limit, or keypad short with fail-safe relay output choices.
- Even wear on duplex pump applications via selectable alternation of the set points between relays.
- Ideal for a wide variety of applications with panel mount, flush mount, or pipe mount ability due to its rugged weatherproof housing.
- Eliminate the need for a step-down transformer with the -HV 120/240 VAC power option.
Applications
- Process control
- Compressor control
- Filter status
- Duct or building static pressure
- Damper and fan control
Description
The Series EDA Electronic Pressure Control is an extremely versatile compact package that can replace a separate gage, two switches, and a transmitter, saving money, installation time, and panel space. The EDA incorporates two SPDT relays with fully adjustable on and off points over the range for control or alarm use. The front face features 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.
Specifications
| Specification | Details |
|---|---|
| Service | Compatible liquids and gases. |
| Wetted Materials | 316L SS. |
| Housing | Glass filled plastic. |
| 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 | 12-28 VDC/AC 50/60 Hz. (Can work at 8 VDC for 45 s). For T5 option: 14-30 VDC/AC 50/60 Hz. For -HV option: 120-240 VAC. |
| Power Consumption | 12-28 VDC/VAC: 2.5 watts; 120-240 VAC: 4.5 watts. |
| Electrical Connections | Removable terminal blocks with 1/2" female NPT conduit connections. |
| Enclosure Rating | Meets NEMA 4X (IP65). |
| Warm Up Time | <10 s. |
| Mounting Orientation | Any position. |
| Weight | 1.18 lb (535 g). |
| Agency Approvals | CE, UL. |
Switch Specifications
| Specification | Details |
|---|---|
| Switch Type | 2 SPDT relays. |
| Electrical Rating | 5 A @ 120/240 VAC, 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. |
Transmitter Specifications
| Specification | Details |
|---|---|
| Output Signal | 4-20 mA, 1-6 VDC, 1-5 VDC, or 0-10 VDC (direct or reverse output selection). |
| Minimum Excitation | 14 VDC. |
| Zero and Span Adjustments | Menu scalable within the range. |
Dimensions
The dimensions diagram shows a circular pressure controller with a front panel diameter of approximately 5 inches (127.00 mm). The cutout diameter for panel mounting is approximately 4-17/32 inches (115.09 mm). The unit features a 1/4 male NPT process connection with a 3/4 inch hex wrenching area, measuring 27/32 inches (21.43 mm) from the front. It also includes a 1/2 female NPT conduit entry. Overall depth dimensions are provided, with key measurements like 3-1/16 inches (77.89 mm) and 3-15/32 inches (88.11 mm) for different mounting configurations.
Wiring Diagram
The wiring diagram illustrates the electrical connections for the Series EDA Electronic Pressure Controller. It shows two SPDT relays, labeled SP1 and SP2, each with Common (COM), Normally Open (NO), and Normally Closed (NC) terminals, connected via CONN7 and CONN8 respectively. A Line Input is provided via CONN9, and a Receiver Output (4-20 mA or Voltage) is available at CONN10. The diagram also details connections for two loads: LOAD 1 can handle 5A at 250 VAC for 120/240 VAC power, or 1A at 32 VDC for 30 VDC power. LOAD 2 is for 12-30 VDC/AC power, rated at 375 mA at 250 VAC.
How to Order
Construct a product code using the bold characters from the chart below:
| SERIES | EDA: Electronic pressure controller |
| HOUSING | W: Weatherproof |
| PROCESS CONNECTION | -N1: 1/4" male NPT |
| CONDUIT CONNECTION | E1: Two 1/2" NPT |
| OPTIONS | -AT: Aluminum adhesive tag -HV: 120-240 VAC power -NIST: NIST certificate -P: 1/2 NPSM conduit plug |
| TRANSMITTER OUTPUT | T0: None T1: 4-20 mA T2: 1-5 VDC T3: 0-5 VDC T4: 1-6 VDC T5: 0-10 VDC |
| RANGE | -02: 0-20 psig -03: 0-60 psig -04: 0-100 psig -05: 0-150 psig -06: 0-300 psig -07: 0-600 psig -08: 0-1000 psig -09: 0-1500 psig -10: 0-3000 psig |
Example code: EDA-W-N1-E1-02-T3-NIST
Accessories
| Model | Description |
|---|---|
| A-590 | 1/2" conduit plug, watertight |
| A-EDA-BRK | Flush mount bracket for EDA, bracket is then surface mounted, steel with gray hammertone epoxy finish |
Order Online Today!
Visit: dwyer-inst.com/Product/SeriesEDA
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