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Printed in U.S.A. 2/21 DS-EDA Rev. 2
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• 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
FEATURES/BENEFITS
SERIES EDA | MERCOID
®
ELECTRONIC PRESSURE CONTROLLER
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.
• Process control
• Compressor control
• Filter status
• Duct or building static pressure
• Damper and fan control
DESCRIPTIONAPPLICATIONS
HOW TO ORDER
SERIES
EDA: Electronic pressure controller
HOUSING
W: Weatherproof
PROCESS CONNECTION
-N1: 1/4˝ male NPT
CONDUIT CONNECTION
E1: Two 1/2˝ NPT
OPTIONS
-23444: Special cleaning
-AT: Aluminum adhesive tag
-HV: 120-240 VAC power
-NIST: NIST certicate
-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
EDA E1W -02-N1 T3 -NIST
Use the bold characters from the chart below to construct a product code.
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
DIMENSIONS WIRING DIAGRAM
SPECIFICATIONS
SWITCH SPECIFICATIONS
TRANSMITTER SPECIFICATIONS
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 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.
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.
1/4 MALE NPT
WITH 3/4 [19.05]
WRENCHING HEX
9/32 [7.14]
Ø 5
[127.00]
Ø 4-17/32
[115.09]
1
[25.40]
3-1/16
[77.89]
27/32 [21.43]
1-59/64
[26.16]
2X 5/16
[7.93]
3-15/32
[88.11]
1-5/8
[41.28]
[40.88]
3X 1/8 [3.18]
1/2 FEMALE
NPT CONDUIT
ENTRY
SP1
RELAY
CONN7 CONN8
CONN9
CONN10
LOAD 1
SP2
RELAY
SP2 OR
ALARM
RELAY
5A
250 VAC FOR LOADS USING 120/240 VAC POWER
1A 32 VDC FOR LOADS USING 30 VDC POWER
375 mA 250 VAC
12-30
VDC/AC POWER
LINE
INPUT
RECEIVER
VOLTAGE
OUTPUT
RECEIVER
LOAD 2
SP2 OR ALARM
RELAY
LINE
INPUT
4-20 mA
OUTPUT
NO
NONC
NC
COM COM