Omega EDA User guide

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SERIES EDA | MERCOID® ELECTRONIC PRESSURE CONTROLLER

FEATURES/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,ush mount, or pipe mount ability due to its rugged weatherproof housing

• Eliminate the need of a step down transformer with the -HV 120/240 VAC power option

DESCRIPTIONAPPLICATIONS

• Process control

• Compressor control

• Filter status

• Duct or building static pressure

• Damper and fan control

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. 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 simple menu structure, two-line display, and external programming buttons. Weatherproof housing is ideal for a wide variety of applications with panel mount, ush mount, or pipe mount ability.

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SPECIFICATIONS

WRENCHING HEX

[77.89]

SP1

1A 32 VDC FOR LOADS USING 30 VDC POWER

VDC/AC POWER

SP2 OR ALARM

Service Compatible liquids and gases.

Wetted Materials 316L SS.

Housing Glass lled 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

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

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.

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DIMENSIONS WIRING DIAGRAM

WRENCHING HEX

[77.89]

SP1

1A 32 VDC FOR LOADS USING 30 VDC POWER

VDC/AC POWER

SP2 OR ALARM

1/4 MALE NPT

WITH 3/4 [19.05]

Ø 5

[127.00]

27/32 [21.43]

9/32 [7.14]

1-59/64 [26.16]

Ø 4-17/32

[115.09]

1/2 FEMALE

NPT CONDUIT

ENTRY

3X 1/8 [3.18]

2X 5/16

[7.93]

3-15/32

[88.11]

3-1/16

[25.40]

1-5/8 [41.28] [40.88]

RELAY

CONN7 CONN8

COM COM

SP2

RELAY

LOAD 1

LOAD 2

250 VAC FOR LOADS USING 120/240 VA C POWER

NONC

SP2 OR

ALARM

RELAY

LINE

INPUT

LINE

INPUT

CONN9

375 mA 250 VAC

CONN10

RECEIVER

VOLTAGE

OUTPUT

RECEIVER

4-20 mA

OUTPUT

12-30

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HOW TO ORDER

Use the bold characters from the chart below to construct a product code.

EDA E1W -02-N1 T3 -NIST

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 certicate

-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

ACCESSORIES

Model Description A-590 A-EDA-BRK

1/2˝ conduit plug, watertight Flush mount bracket for EDA, bracket is then surface mounted, steel with gray hammertone epoxy nish

DWYER INSTRUMENTS, INC.

Important Notice: Dwyer Instruments, LLC reserves the right to make changes to or discontinue any product or service identied in this publication without notice. Dwyer advises its customers to obtain the latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current.