Omega Products DPF-520 Installation Manual

User’s Guide

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DPF-520 Series

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Servicing North America:

U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047

ISO 9001 Certified Stamford, CT 06907-0047 USA

Toll Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec), Canada H7L 5A1
Toll-Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

For immediate technical or application assistance:

U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA

Customer Service: 1-800-622-2378/1-800-622-BEST
Engineering Service: 1-800-872-9436/1-800-USA-WHEN

Mexico: En Español: 001 [phone] FAX: [phone]

[e-mail] e-mail: [e-mail]

®

®

®

Servicing Europe:

Benelux: Managed by the United Kingdom Office

Toll-Free: 0800 099 3344 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Czech Republic: Frystatska 184

733 01 Karviná, Czech Republic
Toll-Free: 0800-1-66342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

France: Managed by the United Kingdom Office

Toll-Free: 0800 466 342 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26

D-75392 Deckenpfronn, Germany
Toll-Free: 0 800 6397678 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

United Kingdom: OMEGA Engineering Ltd.

ISO 9001 Certified One Omega Drive, River Bend Technology Centre, Northbank

Irlam, Manchester M44 5BD England
Toll-Free: 0800-488-488 TEL: [phone]
FAX: [phone] e-mail: [e-mail]

It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI
regulations that apply. OMEGA is constantly pursuing certification of its products to the European New
Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

GENERAL INFORMATION, FEATURES, DIMENSIONS, SPECIFICATIONS

1/2" NPT

5.67"

The DPF-520 Series is a batching ow processor with additional
output controls. It is designed for use with Omega ow meters
and ow sensors, as well as other manufacturer’s products
which have frequency output proportional to ow. In addition
to batch functions, the DPF-520 Series indicates ow rate, and
other data in large 3/8” (9.66 mm) digits on an easily-read,
backlit display. Units of measure are user selectable, and range
from milliliters per second to millions of gallons per day. The unit
can be 110 Vac powered with a standard 3-wire cord (included),
220 Vac powered (optional), or DC powered through an internal
terminal strip (battery not included).

FEATURES

Cover Screws*

Display

Setting Keys

Indicator Lights

An analog output of 4-20 mA is available both in active and
passive loop conguration, and in 0-5 Vdc or 0-10 Vdc outputs,
and can be used in applications such as ow rate logging. Two
programmable pulse scaled outputs are also standard, and can
be used, for example, to provide proportional chemical feed with
a pulse-responsive metering pump.

The housing is supplied with two brackets for wall-mount
applications, or the top/bottom housings can be easily
separated and reassembled for panel-mount.

DIMENSIONS

6.42"

6.42"

1/2" NPT

*Can be ordered cross-drilled for seal wire

SPECIFICATIONS*

Power

Temperature

Enclosure

Batch Outputs

Max Pulse Output

Memory Type

Sensor Power

Display

Units

Analog Output

Sensor Input

Environmental

Setup Memory

*Specications subject to change

115 Vac, 50/60 Hz @ 125 mA, (220 Vac optional), 12 Vdc @ 750 mA

32˚ - 130˚ F (0˚ - 55˚ C)

Precision cast aluminum, NEMA 4X, panel or wall mount conguration

Two form C (SPDT) relays, 115 Vac 6A max

100 mA at 60 Vac/Vdc, opto-isolated, open-collector

Non-volatile EEPROM with auto-backup

12 Vdc, 10 mA

Totalizer = 8 digit Rate = 5 digit, backlit

Volume = Gallons, cubic feet, cubic meters, millions of gallons, milliliters, uid ounces, pounds, liters
Time = Seconds, minutes, hours, days

4-20 mA passive opto-isolated; 4-20 mA active; 0-5 Vdc, or 0-10 Vdc

1-1000 Hz, ESD protected, interfaces to current sinking sensor output

NEMA 4X

Non-volatile EEPROM, auto-backup

5.67"

4.65"

Page 1

•

•

SEN1

–G

SEN2

Alternate

DC power

Customer Supplies
1A Fuse

Pulse 1

Pulse 2

Pulse Outputs

(for metering pumps)

Regeneration Outputs

AC Power

Relay 1

Relay 2

Main power fuse

250mA

Line
Neutral
Ground

Ribbon connector

from display board

Resume

Start/Stop

Remote
Controls

NO
COM
NC
NO
COM
NC

Resume

COM

BATCH

+12

Power
Signal

Ground

RED
WHITE
BLACK

Meter

Dry contact

0-5 V or
0-10 V or
4-20 mA

Analog Switch*

Analog Header

A
+

-

B

Active

Passive

Jumpers

A

P

5V

10V

4-20mA

An Output

110 Vac
Jumpers

220 Vac
Jumper

*Consult Omega before
changing from factory preset

5.50"

gasket

PANEL
CUTOUT

5.50"

6.03"

6.03"

1/4" holes (4 required)

.375"

INSTALLATION, REPAIR, CONNECTIONS

Wall Mounting. Using the four screws provided, attach the

two foot brackets to the sides of the enclosure. Then attach
the unit to any secure surface by inserting screws through
the mounting holes in the foot brackets.

Panel Mounting. Follow the dimensions given for “Panel
Cutout”. Be sure to include the four corner screw holes.
After cutting and drilling, place the front plate on the front
side of the panel with its gasket against the panel, and the
remainder of the square housing on the back side. Slide the
screws through the four holes drilled in the panel, and into
the threaded holes in the housing. Tighten until the gasket
is rmly compressed against the panel.

PANEL CUT-OUT

Sensor Connection. Follow the “Connections” diagram to

connect either two or three wires from the ow meter or ow
sensor.

Caution: When the control is powered up,
relay or analog outputs may be present. If
this could be a hazard, wait to make external
connections until programming is complete.

Batch Control Connection (if used). Connect the valve or
other device(s) to be controlled for starting and stopping the
batch to the appropriate relay terminals. Note: if the staged
shutoff (“prewarn”) will not be used, connect to relay one
only. Relay 1 remains energized for the entire batch cycle. If
a staged shutoff is desired, connect the main valve to Relay
2 (early shutoff) and the low-ow valve to Relay 1.

Monitor Alarm Connection (if used). Connect the alarm devic­es to the appropriate relay terminals. Note that the relays have
both normally-open (NO) and normally-closed (NC) contacts.

Analog Connection (if used). This output can be congured
4-20 mA, 0-5 V or 0-10 V by placing a jumper in the correct
position on the analog header. The analog switch next to
the header selects active (powered) or passive (unpowered)
output. NOTE: Consult factory to change internal rmware
when changing switch position. When using the 12 Vdc
powered input you may only select passive output.

Expose Terminals. Remove the four screws which hold the
front plate to the lower housing ange. Remove front plate.
The display board is attached to this front plate. It is also
connected to the power board by a ribbon cable. This cable can
be disconnected while making connections. Connections can be
made inside the enclosure, or the terminals can be unplugged
by gentle tugging for easier access.

Caution: Always disconnect power to the
unit before opening the teminal cover. Do
not reconnect power until all connections
have been made and the teminal cover has
been replaced.

Connections

Power Connection. Connect AC or DC power as desired to
the appropriate terminals. For safety, if using AC power, be
sure to connect the ground terminal provided to a good earth
ground. If using 12 Vdc, use a 12 Vdc 500 mA power supply.
Replace the front panel, taking care to reconnect the ribbon
cable if it has been disconnected. When power is switched
on, the display should light up immediately with meaningful
letters or digits.

Repair

The only eld-repairable component on the DPF-520 is the
fuse. If failure is due to a cause other than a blown fuse, it
is necessary to replace the entire board stack. Contact your
distributor for information.

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