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.

Page 2

DPF-521

Flow Sensor

High -Flow

Valve

Low-Flow

Valve

Tank

DPF-520

Staged shut-off
at end of batch

High-Flow Valve

Low-Flow Valve

Relay 1

Relay 2

NC

COM

NO

NC

NO

COM

Power
Source

+

-

> DPF-521 Batch Controller

In Batch Processing Mode, the display indicates a ow rate on
the top line, and one of three user-selectable congurations
on the bottom line: an accumulated total ow (resettable), ac­cumulated batch ow, or batch process bar graph. The batch
output is controlled via two relays. The main relay starts and
stops the batch as a set, or the auxiliary “prewarn” relay can
be used to operate a second valve. This allows increased ac­curacy by engaging a staged shut off at the end of the batch.

Settings

Use left arrow and up arrow keys to change settings. Press
SET to advance to next menu.

- SET Batch Size
Set the batch size for the desired number of units. If the
staged shut-off feature is not being used, this is the only set­ting required for the batch.

- SET Prewarn Size
This is only used for a staged shut-off. The number set is the
number of units early (before the end of the batch) that Relay
2 will shut off.

- SET Flow/Rate
Select the particular volume unit desired (gallons, liters, etc.).
Then switch to time units and select the time unit desired
(minutes, hours, etc.).

- SET Decimal
Select none, one, or two decimal places on the ow units.

- SET K-Factor
The unit will not function properly until this number is en­tered. The K-factor is simply the number of pulses which the
ow meter or ow sensor puts out per gallon of liquid. It is
marked on the Model/Serial tag of Omega ow meters and
ow sensor ttings. On adjustable depth ow sensors, the K­factor must be taken from the chart in the ow sensor instruc­tions, based on pipe size.

- SET Pulse (scaled) Output 1
An output pulse is activated at the selected volume intervals
if this feature is in use. If a pulse output is not needed, pulse
out does not need to be set.

- SET Pulse (scaled) Output 2
An output pulse is activated at the selected volume intervals
if this feature is in use. If a pulse output is not needed, pulse
out does not need to be set.

- SET 20 mA Rate
The “SET 20mA RATE” programs the maximum ow rate at
which the output is 20 mA full scale, at 5 V or 10 V.

- Clear Total
This function resets the accumulated total back to zero. It is
unrelated to the regeneration function, and can be ignored
unless it is needed.

Operation
Start Batch. Pressing the Start/Stop key starts the batch by

energizing Relay 1. The indicator for Relay 1 will light, indicat­ing normal operation. The indicator for Relay 2 may also light,
depending on the prewarn setting. If staged shut-off is being
used, the Relay 2 indicator light should go out before the end

Page 3

of the batch, at the prewarn set point. The batch will continue
on to the set amount unless it is halted in the middle of the
process by pressing the Start/Stop key again.

Stop Batch/Resume Batch. Pressing the Start/Stop key any­where in the batch will stop it. It will remain stopped until the
Resume key is pressed. Pressing the Start/Stop key again
allows the batch to restart from zero.

Choice of Displays for Batching. When in Operation Mode,
press the UP Arrow to change the type of display. Running
Totalizer (“T”) accumulates a Total Flow until it is reset. Batch
(“B”) accumulates the ow of the present batch only, then
resets. Bar Graph (“❚”) graphically indicates from left to right,
how much of the batch has already accumulated.

STAGED SHUT-OFF APPLICATION

CONNECTION FOR STAGED SHUT-OFF

DPF-521C

> DPF-521C Filter Regeneration

In Filter Regeneration Mode, the display indicates a ow rate on
the top line, and one of two congurations on the bottom line: an
accumulated total ow (resettable), or batch process remainder.
The regeneration process is initiated by setting a target volume,
a value for regeneration time as well. A single relay or alternate
relay setting allows control of either single tank or alternating
dual tank systems.

On the input side, this model can be used with Omega ow sen­sors and meters, as well as with water meters from other manu­facturers. The output can be used to initiate regeneration in a
variety of one-tank and two-tank water treatment systems. In ad­dition to the regeneration functions, this unit features displays of
ow rate and accumulated ow, as well as programmable pulse
output and a 4-20 mA analog output, for use with remote re­corders. There are two regeneration relays, which can be used
for alternating regeneration of two tanks. The outputs remain
on for a duration programmed by the user, depending on the
requirements of the regeneration valve being used. A program­mable pulse output can be used as needed to control a chemi­cal metering pump, for controlled chemical addition to the water
stream.

Settings

Use Left Arrow and UP Arrow keys to change settings. Press SET
to advance to next menu.

- SET Flow/Rate
Select the particular volume unit desired (gallons, liters, etc.).
Then switch to time units and select the time unit desired (min­utes, hours, etc.).

- SET Decimal
Select none, one, or two decimal places on the ow units.

- SET K-Factor
The unit will not function properly until this number is entered.
The K-factor is simply the number of pulses which the ow meter
or ow sensor puts out per gallon of liquid. It is marked on the
Model/Serial tag of Omega ow meters and ow sensor ttings.
On adjustable depth ow sensors, the K-factor must be taken
from the chart in the ow sensor instructions, based on pipe
size.

- SET Pulse (scaled) Output 1
An output pulse is activated at the selected volume intervals if
this feature is in use. If a pulse output is not needed, pulse out
does not need to be set.

- SET Pulse (scaled) Output 2
An output pulse is activated at the selected volume intervals if
this feature is in use. If a pulse output is not needed, pulse out
does not need to be set.

- SET 20 mA Rate
The “SET 20mA RATE” programs the maximum ow rate at which
the output is 20 mA full scale, at 5 V or 10 V.

- Clear Total
This function resets the accumulated total back to zero. It is un­related to the regeneration function, and can be ignored unless
it is needed.

- SET Regeneration Volume
This is the volume (in the units you have selected; typically gal­lons) at which the relay energizes to initiate a regeneration cy­cle.

- SET Regeneration Time in seconds (3 digits)
This is the length of time in seconds, the relay remains energized
to initiate regeneration. Enter a value slightly over the minimum

time required by the regeneration valve to begin a cycle.

- SET Relay Mode to one or alternate relays
Choose between single relay (Relay No. 1) and dual relay (Alter­nate Relays) operation. In alternate relay mode, the rst regen­eration will use Relay 1, the next will use Relay 2, and successive
regenerations will switch between the two.

- Clear Total
This function resets the accumulated total back to zero. It is un­related to the regeneration function, and can be ignored unless
it is needed.

Operation
Choice of Displays. When all of the settings have been entered,

the next press of the SET Key puts the unit in operation. If a T
appears at the left side of the display, the values shown are ow
rate and running total. If there is no T, the values shown are ow
rate and units remaining until regeneration. The total increases
with ow, and the regeneration quantity counts down. Use the
UP Arrow to choose the preferred display, usually regeneration
quantity.

Regeneration Initiation. When the regeneration quantity num­ber rst reaches 0, Relay No. 1 energizes for the length of time
which has been set. The regeneration quantity immediately re­sets and begins counting down again. If alternating mode has
been selected, the next time it reaches 0, Relay No. 2 will ener­gize, and the cycle after that, will return to Relay No. 1. An output
can be manually forced at any time by pressing the Start/Stop
key. The relay will energize for the set time, and regeneration
volume will return to its original setting to begin counting down
again.

Alternating Tanks Appliction

Flow Sensor

Tank 1

DPF-520

Tank 2

Connections for Alternating Tanks

Tank 1

Tank 2

Relay 1

Relay 2

NO

COM

NC

NO

COM

NC

Page 4

DPF-521R

> DPF-521R Flowrate Alarm

In Flowrate Alarm Mode, the display indicates a ow rate on
the top line, and on the bottom line, an accumulated total
ow (resettable). The user sets a minimum and maximum
ow rate, and if the ow exceeds the min/max paramenter,
Relay 1 or Relay 2 will close. The output relay will stay latched
until the ow rate increases/decreases back between the
min/max settings.

Settings

Use Left Arrow and UP Arrow keys to change settings. Press
SET to advance to next menu.

- SET Flow/Rate
Select the particular volume unit desired (gallons, liters, etc.).
Then switch to time units and select the time unit desired
(minutes, hours, etc.).

- SET Decimal
Select none, one, or two decimal places on the ow units.

- SET K-Factor
The unit will not function properly until this number is en­tered. The K-factor is simply the number of pulses which the
ow meter or ow sensor puts out per gallon of liquid. It is
marked on the Model/Serial tag of Omega ow meters and
ow sensor ttings. On adjustable depth ow sensors, the K­factor must be taken from the chart in the ow sensor instruc­tions, based on pipe size.

- SET Pulse (scaled) Output 1
An output pulse is activated at the selected volume intervals
if this feature is in use. If a pulse output is not needed, pulse
out does not need to be set.

- SET Pulse (scaled) Output 2
An output pulse is activated at the selected volume intervals
if this feature is in use. If a pulse output is not needed, pulse
out does not need to be set.

- SET 20 mA Rate
The “SET 20mA RATE” programs the maximum ow rate at
which the output is 20 mA full scale, at 5 V or 10 V.

- SET Low Flow Alarm
Set the desired minimum ow rate at which you want an
alarm to occur. Low alarm corresponds to alarm Relay 1 (see
Connections diagram).

- SET Hi Flow Alarm
Set the desired maximum ow rate at which you want an alrm
to occur. High alarm corresponds to alarm Relay 2 (see Con­nections diagram).

- Clear Total
This function resets the acccumulated total back to zero.
NOTE: The “Start/Stop” and “Resume” keys are not used in
ow alarm mode.

Operation

The last press of the key returns the unit to operation mode.

Flow Monitoring. The ow rate and accumulated displays be­gin showing current data. The accumulated total increases
indenitely unless it is reset.

Alarms. Alarm Relay 2 activates when ow reaches the high
alarm set point. Because of the built-in hysteresis, the relay
does not deactivate until the ow rate has reached 10% be­low the high alarm set point. Similarly, alarm Relay 1 acti­vates when ow reaches the low alarm set point, and does
not deactivate until ow returns to 10% above the low alarm
set point.

NO
COM

NC

NO

COM

NC

-Autodialer

-Pump

-Alarm

-Valve Shutoff

Alarm 1

Alarm 2

Page 5

DPF-522

> DPF-522 Usage Monitor

In Usage Monitor Mode, the display indicates one of two con­gurations: an elapsed time and elapsed ow, or a ow rate
and accumulated total ow (resettable). A time period is set
to monitor for a set maximum total ow. If the total ow is
reached within the set time, an output relay is closed. The
output relay stays latched until the system either resets auto­matically after the set time, or is reset manually via the Start­Stop button. A reset condition clears the elapsed time and
ow, but not the accumulated total ow.

The DPF-522 is a owmeter monitor with added output and
alarm features. It is designed for use with Omega ow meters
and sensors, as well as other units which have a pulse or
frequency output. It displays ow rate and total in large digits
on an easily-read backlit display. Units are user selectable
between gallons, cubic feet, and cubic meters. The primary
output of this unit is a user-set alarm relay which signals ex­cessive total ow within a given time period (up to 48 hours).
This is typically used to detect an elevated usage level in a
cooling tower or potable water application. The dual relays
can be connected to an alarm, autodialer, or any other switch­controllable device. In addition to the usage alarm, the FT522
has analog output (4-20 mA, 0-5 Vdc or 0-10 Vdc) and pro­grammable pulse output. These can be used with an external
data logger or to provide proportional chemical feed, using an
externally-controlled metering pump.

Settings

Use Left Arrow and UP Arrow keys to change settings. Press SET
to advance to next menu.

- SET Flow/Rate
Select the particular volume unit desired (gallons, liters, etc.).
Then switch to time units and select the time unit desired
(minutes, hours, etc.).

- SET Decimal
Select none, one, or two decimal places on the ow units.

- SET K-Factor
The unit will not function properly until this number is en­tered. The K-factor is simply the number of pulses which the
ow meter or ow sensor puts out per gallon of liquid. It is
marked on the Model/Serial tag of Omega ow meters and
ow sensor ttings. On adjustable depth ow sensors, the K­factor must be taken from the chart in the ow sensor instruc­tions, based on pipe size.

- SET Pulse (scaled) Output 1
An output pulse is activated at the selected volume intervals
if this feature is in use. If a pulse output is not needed, pulse
out does not need to be set.

- SET Pulse (scaled) Output 2
An output pulse is activated at the selected volume intervals
if this feature is in use. If a pulse output is not needed, pulse
out does not need to be set.

- SET Time Period from 01-48 hours
This is the monitoring period at the end of which the unit will
alarm if total ow has exceeded its setting. Set this monitor­ing period for 01-48 hours. NOTE: that if the digit to the right

is set to “9”, the digit to the left will only go to “3” This is be­cause 48 is the maximum setting allowed.

- SET Alarm Reset
Set to automatic or manual.

- SET Alarm Point in Flow (8 digits)
This is the maximum total ow allowed in the time period set
above. Use the same procedure as above to set this value, up
to eight digits. The units are those previously chosen.

- SET 20 mA Rate
The “SET 20mA RATE” programs the maximum ow rate at
which the output is 20 mA full scale, at 5 V or 10 V.

- Clear Total
This function resets the accumulated total back to zero in
the rate/total conguration. It does not affect the data in the
elapsed time/ow conguration.

Operation

The last press of the key returns the unit to operation mode.
In this mode, pressing either arrow key will toggle back and
forth between two displays, one for ow monitoring and the
other for usage monitoring.

Usage Alarm. Pressing the Start/Stop key will start the clock
and zero the total of the usage monitor. The clock will in­crease and the total will accumulate (provided there is ow)
until the end of the monitoring period. At that time, the usage
total and clock will zero automatically and the cycle will start
over. If the usage total ever reaches its alarm point within
the monitoring time, the usage alarm relays will energize and
remain on until the Resume key is pressed. If the Resume key
is pressed during a monitoring cycle, it will freeze the cycle at
its current point. Pressing it again allows the cycle to resume
where it left off.

Flow Monitoring. The “Rate” indication gives the current rate
of ow. “Total” is a running total of ow which increases in­denitely unless it is reset.

Autodialer

Alarm

110 Vac

Alarm 1

Alarm 2

Main

power fuse

250mA

part # 26926

Hot

Neut

Gnd

NO
COM

NC

NO

COM

NC

Page 6

TROUBLESHOOTING

Problem

Display blank No power to the unit Check for minimum 12 Vdc at power
terminals

Short in sensor circuit Disconnect sensor, see if display returns
(zero ow rate)

Display missing segments Damaged display module Contact distributor for return/replacement

Display reading meaningless Unit’s microcontroller crashed Disconnect and reconnect power, if problem
characters repeats, contact distributor for
return/replacement

Display reads normally, Wrong k-factor entered Check k-factor, enter proper one if in error
ow rate incorrect

Display reads normally, Wrong pulse output setting Check “SetP” to see if it is set correctly no
(wrong) pulse output
Polarity reversed on pulse output terminals Reverse leads and see if problem corrects

Display reads normally, Wrong 20 mA setting Check “Set 20” to see if it matches target top
no (wrong) 4-20 mA output ow rate

Inadequate loop power supply voltage Check voltage. For 4-20 mA applications,
24 Vdc recommended

Probable Cause Try...

Polarity incorrect in 4-20 mA loop circuit Compare to Connections diagram

Display reads zero when Flow sensor failed Consult ow sensor manual for how to test
there is ow
Break in ow sensor circuit Check for continuity with multimeter

Display reads ow rate when Long ow sensor wire, running parallel to Reroute wire or switch to shielded wire
there is none power wires

Flow sensor malfunction See ow sensor manual to check

NOTES

WARRANTY/ DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a
period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month
grace period to the normal one (1) year product warranty to cover handling and shipping time. This
ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service
Department will issue an Authorized Return (AR) number immediately upon phone or written request.
Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no
charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,
including but not limited to mishandling, improper interfacing, operation outside of design limits,
improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of
having been tampered with or shows evidence of having been damaged as a result of excessive corrosion;
or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating
conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not
limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any
damages that result from the use of its products in accordance with information provided by
OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the
company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF
TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF
LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of
OMEGA with respect
indemnification, strict liability or otherwise, shall not exceed the purchase price of the
component upon which liability is based. In no event shall OMEGA be liable for
consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or
activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility
as set forth in our basic WARRANTY/ DISCLAIMER language, and, additionally, purchaser will indemnify
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the
Product(s) in such a manner.

to this order, whether based on contract, warranty, negligence,

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTA IN AN AUTHORIZED RETURN
(AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT ( IN ORDER TO AVOID
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return
package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent
breakage in transit.

FOR WARRANTY
following information available BEFORE
contacting OMEGA:

1. Purchase Order number under which the product
was PURCHASED,

2. Model and serial number of the product under
warranty, and

3. Repair instructions and/or specific problems
relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords
our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2009 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC.

RETURNS, please have the

FOR NON-WARRANTY REPAIRS,
for current repair charges. Have the following
information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST
of the repair,

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems
relative to the product.

consult OMEGA

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

SM

TEMPERATURE



Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies



Wire: Thermocouple, RTD & Thermistor



Calibrators & Ice Point References



Recorders, Controllers & Process Monitors



Infrared Pyrometers

PRESSURE, STRAIN AND FORCE



Transducers & Strain Gages



Load Cells & Pressure Gages



Displacement Transducers



Instrumentation & Accessories

FLOW/LEVEL



Rotameters, Gas Mass Flowmeters & Flow Computers



Air Velocity Indicators



Turbine/Paddlewheel Systems



Totalizers & Batch Controllers

pH/CONDUCTIVITY



pH Electrodes, Testers & Accessories



Benchtop/Laboratory Meters



Controllers, Calibrators, Simulators & Pumps



Industrial pH & Conductivity Equipment

DATA ACQUISITION



Data Acquisition & Engineering Software



Communications-Based Acquisition Systems



Plug-in Cards for Apple, IBM & Compatibles



Datalogging Systems



Recorders, Printers & Plotters

HEATERS



Heating Cable



Cartridge & Strip Heaters



Immersion & Band Heaters



Flexible Heaters



Laboratory Heaters

ENVIRONMENTAL
MONITORING AND CONTROL



Metering & Control Instrumentation



Refractometers



Pumps & Tubing



Air, Soil & Water Monitors



Industrial Water & Wastewater Treatment



pH, Conductivity & Dissolved Oxygen Instruments

PL-OM-65200373-071712
7/17/2012

M-5189/0712

M0000/0009