Omega DRST-CM User Manual

TM

User’s Guide

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omega.com

e-mail: [e-mail]

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www.omegamanual.info

Communication Enabler

DRST-CM

omega.com [e-mail]

Servicing North America:

U.S.A. Omega Engineering, Inc.
Headquarters: Toll-Free: 1-800-826-6342 (USA & Canada only)

Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: [phone] Fax: [phone]
e-mail: [e-mail]

For Other Locations Visit omega.com/worldwide

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.

Table of

Contents

DRST-CM Transmitter

Table of Contents

Section ........................................................................ Page

Section 1 Warning .......................................................................................... 5

Section 2 Symbol Identification .................................................................. 5

Section 3 Safety Instructions ........................................................................ 6

Section 4 Applications ................................................................................... 7

Section 5 Technical Characteristics ............................................................. 7

Section 6 Mounting/ Installation/ Programming ..................................... 8

Section 7 Mounting on a DRST device ...................................................... 8

Section 8 Order ................................................................................................8

Section 9 Electrical Specications ......................................................... 9-10

Section 10 Modbus Parameter settings ............................................... 11-12

Section 11 Modbus Settings - Routing Diagram ................................ 13-14

3

1

GENERAL

HAZARD OUS

VOLTAGE

Warning

WARNING

This device is designed for connection to hazardous electric voltages. Ignoring this
warning can result in severe personal injury or mechanical damage.
To avoid the risk of electric shock and fire, the safety instructions of this guide must be
observed and the guidelines followed. The specifications must not be exceeded, and
the device must only be applied as described in the following.
Prior to the commissioning of the device, this installation guide must be examined
carefully.
Only qualified personnel (technicians) should install this device.
If the equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.

WARNING

Until the device is fixed, do not connect hazardous voltages to the device. The
following operations should only be carried out on a disconnected device and under
ESD safe conditions:
General mounting, connection and disconnection of Modbus cable.
Troubleshooting the device.

Repair of the device must be done by Omega A/S only.

CAUTION

Section 1.2 - Symbol Identification

Triangle with an exclamation mark: Read the manual before installation
and commissioning of the device in order to avoid incidents that could lead
to personal injury or mechanical damage.

The CE mark proves the compliance of the device with the essential
requirements of the directives.

The double insulation symbol shows that the device is protected by double
or reinforced insulation.

WARNING

4

2

Safety Instructions

Section 2 - Safety instructions

Receipt and unpacking

Unpack the device without damaging it and check whether the device type corresponds to the one ordered. The packing should
always follow the device until this has been permanently mounted.

Environment

The device is manufactured for indoor use. Avoid direct sunlight, dust, high temperatures, mechanical vibrations and shock, as
well as rain and heavy moisture. If necessary, heating in excess of the stated limits for ambient temperatures should be avoided
by way of ventilation.

The device may be used in Overvoltage Category II, Pollution Degree 2 at an altitude up to 2000 m.

Mounting

Only qualified technicians who are familiar with the technical terms, warnings, and instructions in this installation guide and
who are able to follow these should connect the device. Only devices which are undamaged and free of moist and dust may be
installed. The device may be installed and supplied by Omega DRST series only.
Should there be any doubt as to the correct handling of the device, please contact your local distributor or, alternatively,

Calibration and Adjustment

During calibration and adjustment, the measuring and connection of external voltages must be carried out according to the
specifications of this manual. The technician must use tools and instruments that are safe to use.

Cleaning

When disconnected, the device may be cleaned with a cloth moistened with distilled water.

IECEx, ATEX installation in Zone 2

IECEx DEK 13.0026 X .............................................. Ex nA IIC T5 Gc

DEKRA 13ATEX0098 X ............................................ II 3 G Ex nA IIC T5 Gc

For safe installation the following must be observed

The device must be installed by qualified personnel who are familiar with the national and international laws, directives and
standards that apply to this area.

Year of manufacture can be taken from the first two digits in the serial number.

The devices must be installed in a suitable enclosure providing a degree of protection of at least IP54 according to EN60529,
taking into account the environmental conditions under which the equipment will be used.

To prevent ignition of the explosive atmospheres do not separate connectors when energized and an explosive gas mixture is
present.

To avoid the risk of explosion due to electrostatic charging of the enclosure, do not handle the units unless the area is known to
be safe, or appropriate safety measures are taken to avoid electrostatic discharge.

Liability

To the extent the instructions in this manual are not strictly observed, the customer cannot advance a demand against Omega
A/S that would otherwise exist according to the concluded sales agreement.

5

How to demount System DRST

Section 3 - Communication Enabler

• Programming display for system DRST devices

• Modbus RTU protocol interface over RS485

• Monitor process value from the built-in display

• High 2.5 kV isolation to host unit

• Shielded RJ45 Modbus connector on top

Section 4 - Applications

• The DRST-CM detachable display adds Modbus RTU RS-485 serial communications to all current and future
DRST units.

• The unit converts a wide array of sensors and analog device signals measured by the system DRST, like uni- and
bipolar mA and voltage signals, potentiometer, Lin. R, RTD and TC, to a Modbus communication line signal.

• When mounted on a system DRST device any signal coming from or going to I.S. classified area, like AI, AO, DI
and DO signals, can be converted to a Modbus network.

• All individual unit operating parameters can easily and quickly be configured by using the Modbus
communication or by using the front display menu.

• The easily readable DRST-CM display can be used to read the process signal, simulate the output signal, indicate
sensor errors and internal module errors.

3

Section 5 - Technical Characteristics

• DRST-CM has full DRSL-DISPLAY functionality for unit programming, process signal monitoring and
diagnostics handling.

• Modbus RTU protocol is supported using a serial RS-485 communication wiring.

• Multidrop half-duplex connection via shielded RJ45 connector.

• High safe galvanic isolation of 2.5 kVAC between the serial wiring and the connected system DRST units.

• Modbus parameters such as address, baud rate, stop bit(s), and parity bit are configured from the DRST-CM
display, which also stores parameters.

Section 6 - Mounting / Installation / Programming

• Mounting in Zone 2 / Div 2.

• The DRST-CM can be moved from one device to another. The individual system DRST unit configuration of the
first transmitter can be saved and downloaded to subsequent transmitters.

• Programmed parameters can be protected by a user-defined password.

• When mounted on devices that are installed upside down, a menu item allows the display on the DRST-CM to be
rotated 180o and the up/down buttons to switch function.

6

7

Mounting on a DRST device

Section 7.1 - Mounting on a DRST device

DRST-CM is a detachable display that can be mounted on all DRST fronts for programming and signal monitoring.

DRST-CM contains a four line LCD dot display

Line 1 can e.g. show the scaled process value.

Line 2 can e.g. show the selected engineering unit.

Line 3 can e.g. show the analog output or TAG no.

Line 4 shows status for communication and e.g. signal trending.

RJ45 Modbus Connector

Pin 5: RS485 A line

Pin 4: RS485 B line

Pin 8: RS485 GND and shield

Section 8 - Order

Type Description

DRST-CM

DRSL-DISPLAY

Communication enabler

Congmate interface

7

Electrical Specification

Section 9 - Electrical specifications

Environmental conditions:

Specications range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20°C to +60°C

Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20°C to +85°C

Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 95% RH (non-cond.)

Protection degree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP20

Installation in pollution degree 2/overvoltage category II.

Mechanical specifications:

Dimensions (H x W x D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73.2 x 23.3 x 26.5 mm

Dimensions (H x W x D) w/DRST unit . . . . . . . . . . . . . . . . . . . . 109 x 23.5 x 131 mm

Weight approx. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 g

Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RJ45 - shielded

Common specifications:

Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 0.15 W

Isolation voltage - test/working . . . . . . . . . . . . . . . . . . . . . . . . 2.5 kVAC / 250 VAC

reinforced isolation

Extended EMC immunity:

NAMUR NE 21, A criterion, burst . . . . . . . . . . . . . . . . . No loss of communication

9

Signal/noise ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 60 dB

Update rate/response time . . . . . . . . . . . . . . . . . . . . . . . . . . . > 50 Hz / < 20 ms

Signal type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RS-485 half duplex

Serial protocol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modbus RTU

Modbus mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTU - slave

Devices on an RS485 line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Up to 32 (without a repeater)

Data rates, baud. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2400, 4800, 9600, 19200,

38400, 57600, 115200

Automatic baudrate detection. . . . . . . . . . . . . . . . . . . . . . . . . . Yes - can be congured ON or OFF

Parity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Even, Odd, None

Stop bit(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 or 2

Digital adressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1...247

Response delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...1000 ms

Approvals:

EMC 2004/108/EC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EN 61326-1

LVD 2006/95/EC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EN 61010-1

UL, Standard for Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UL 61010-1

Marine:

Det Norske Veritas, Ships & Oshore . . . . . . . . . . . . . . . . . . . . . Standard for Certication No. 2.4

Ex:

ATEX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DEKRA 13ATEX0098 X

II 3 G Ex nA IIC T5 Gc

IECEx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DEK 13.0026 X

Ex nA IIC T5 Gc

FM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0003049132-C

CL I DIV2 GP A- D T5
CL I Zn2 Groups IIC T5
CL I Zn2 AEx/Ex nA IIC T5

8

9

Electrical Specification

Section 9 - Electrical Specification

Modbus RTU

PLC/DCS

HMI/PC

Safe Area

Modbus RTU

PLC/DCS

HMI/PC

DRST-CM

DRST-CM

DRST DRST DRST

Gateway

Zone 2 / Cl. 1, Div. 2, gr. A-D

Modbus RTU

DRST-CM

DRST DRST DRST

DRST-CM

T

DRST-CM

T

DRST-CM

Access

Point

PLC/DCS

HMI/PC

Gateway

Ethernet

DRST-

DISPLAY

Modbus TCP/IP

Modbus RTU

DRST-CM

DRST-CM

DRST DRST DRST

9

IP54

T

DRST-CM

Modbus Basics

10

Section 10 - Modbus Basics

Modbus is a “master-slave” system..., where the “master” communicates with one or multiple “slaves”.
The master typically is a PLC (Programmable Logic Controller), DCS (Distributed Control System), HMI (Human Machine
Interface), RTU (Remote Terminal Unit) or PC.
The three most common Modbus versions used are: MODBUS ASCII, MODBUS RTU and MODBUS/TCP.
In Modbus RTU, data is coded in binary, and requires only one communication byte per data byte. This is ideal for use over
multi-drop RS485 networks, at speeds up to 115,200 bps.
The most common speeds are 9,600 bps and 19,200 bps.
Modbus RTU is the most widely used industrial protocol and is supported by the DRST-CM.

Modbus RTU:

To communicate with a slave device, the master sends a message containing:
Device Address - Function Code - Data - Error Check
The Device Address is a number from 0 to 247.

Messages sent to address 0 (broadcast messages) will be accepted by all slaves, but numbers 1-247 are addresses of specic

devices.
With the exception of broadcast messages, a slave device always responds to a Modbus message so the master knows the
message was received.

Command Function code

Read Holding Registers 03

Read Input Registers 04

Write Single Register 06

Diagnostics 08

Write Multiple Registers 16

DRST-CM Supported Modbus Function Codes:

The Function Code denes the command that the slave device is to execute, such as read data, accept data, report status.

Some function codes have subfunction codes.

The Data denes addresses in the device’s memory map for read functions, contains data values to be written into the
device’s memory, or contains other information needed to carry out the function requested.

The Error Check is a 16-bit numeric value representing the Cyclic Redundancy Check (CRC).
Maximum number of registers which can be read or written at once:
For a read command, the limit is 8 registers at a baud rate up to 38,400 bps, 16 registers @ 57,800 bps and 32 registers @
115,200 bps.
For a write command, the limit is 123 registers at baud rates up to 115,200 bps.

10

10

Modbus Parameter settings

DRST-CM Modbus parameter settings

Automatic Baudrate Detection:

Can be configured YES or NO

Supported baudrates:

2400, 4800, 9600, 19.2k, 38.4k, 57.6k, 115.2k bps

Parity Mode:

Even, Odd or None parity

Stop Bits:

1 or 2 stop bits

Response delay:

0...1000 ms (0 ms = default)

Modbus slave addressing range:

1 - 247 (247 = default address)

Modbus Parameter Storage:

Saved in non-volatile memory in the DRST-CM device (Factory Default Values
are marked in bold)

Modbus RTU segment line termination:

A 120 Ohm resistor should be installed on both ends of a RS485 Modbus RTU segment loop to prevent
signal echoes from corrupting data on the line.

11

Modbus Settings - Routing diagram

DRST-CM local subm enu:

"Monitor"

SCROLLING HELPTEXTS:

40.0

0000

(correct)

No

(No)

xxxx

[1]

Set correct password

%

---OK-->

--------->

PASSW.

---OK-->

ADV.SET

---OK-->

XXXX

[2]

Enter advanced setup menu?

10.4mA

[1]

[2]

(Yes)

[x]

[3]

Enter Language setup

^ o

V

Enter Password setup

v ^

v ^|v ^

Enter Simulation mode

|

9999

YES

|

Perform Process calibration

|

0000

NO

|

Enter Display setup

|

|

Perform Memory operations

|

|

MEM

(MEM)

Enter Modbus setup

|

|---->

SETUP

-OK-|-->

Enter Rotation setup

|

[3]

|

[4]

Enable modbus communication

|

(DISP)

Disable Modbus communication

|

v ^

|-->

See automatic baudrate detection status

|

MEM

|

[5]

Reset Modbus to default?

|

DISP

(CAL)

[6]

Select Modbus slave address

|

CAL

|-->

[7]

Select parity for Modbus

|

SIM

|

[8]

Select number of stop bits

|

PASS

(SIM)

[9]

Select response delay in ms

|

LANG

|-->

[10]

Enable automatic baudrate detection

|

MODB

|

[11]

Modbus baudrate not detected

|

ORIEN

(PASS)

Searching for Modbus baudrate

|

|-->

Modbus baudrate detected

| |

[12]

Select baudrate in bps

|

(LANG)

[13]

Rotate device upside down?

| |

------- -- ----- ------- ------- ------- ------- ------- ------- ---------> "Monit

|

[4]

(ON) |

^

^

|

|

NO

(Yes)

|

|

----| |

! ! ! Returns to "M onitor" from any menu, after 1 min with no keypress.

|ON|

[5]

(No) |

|

! ! ! Returns to "M onitor" upon succesful Modbus write command.

|

OFF

|

|

247

EVEN120

NO

(Yes)

|

ADR PARITY STP.BIT R SP.DLY AUTO.B ---OK--> ------- -------> ----|

|

|

NO

|

|

|^ v^ v^ v^ v^ v

247 EVEN 1 1000 YES

| ODD 2 | NO [12]

|

|

1

NONE

0

|

|

*1)

2400

SEAR 4800

------- ---------> STATUS ---OK--> "M onitor" 9600

Only if automatic baudrate detection is enabled

|

[11]

19.2k

(ORIEN)

NO

38.4k

ERR 57.6k

SEAR 115.2k

2400

4800
9600

19.2k

38.4k

57.6k

115.2k

nu.xlsx

SCROLLING HELPTEXTS:

[1]

Set correct password

[2]

Enter advanced setup menu?

[3]

Enter Language setup

Enter Password setup

Enter Simulation mode

Perform Process calibration

Enter Display setup

Perform Memory operations

Enter Modbus setup

Enter Rotation setup

[4]

Enable modbus communication

Disable Modbus communication

See automatic baudrate detection status

[5]

Reset Modbus to default?

[6]

Select Modbus slave address

[7]

Select parity for Modbus

[8]

Select number of stop bits

[9]

Select response delay in ms

[10]

Enable automatic baudrate detection

[11]

Modbus baudrate not detected

Searching for Modbus baudrate

Modbus baudrate detected

[12]

Select baudrate in bps

[13]

Rotate device upside down?

DRST-CM Modbus settings - Routing Diagram

V0R9

11

| |-->

| (MODB) YES (OFF)

|--> ------- ------- ------- ------- ------- ------- ------- |--> MOD.EN ---OK--> ------- -------

| v ^ |----> MOD.RST ---OK-->

| STAT US *1) | v ^ |---->

The gray shaded menus/texts are only shown for guidance, and are not part of
the DRST-CM specific submenu.
The Modbus submenu is located somewhere in the menu s tructure of any host
device supporting DRST-CM. The actual place is definedfor each particular
device.

*1) | |----> ------- -------

| (STATUS)

|--> ROT.DEV ---OK--> " Monitor"

[13]

v ^

YES

NO

|| YES

||
||
||

||

Omega A/S DRST-CM Local Me

12

11

"Monitor"

40.0

0000

(correct)

No

(No)

xxxx

%

---OK-->

--------->

PASSW.

---OK-->

ADV.SET

---OK-->

XXXX

10.4mA

[1]

[2]

(Yes)

[x]

^ o

V

v ^

v ^|v ^

|

9999

YES

|

|

0000

NO

|

|

|

|

|

MEM

(MEM)

|

|---->

SETUP

-OK-|-->

|

[3]

|

|

(DISP)

|

v ^

|-->

|

MEM

|

|

DISP

(CAL)

|

CAL

|-->

|

SIM

|

|

PASS

(SIM)

|

LANG

|-->

|

MODB

|

|

ORIEN

(PASS)

|

|-->

| |

|

(LANG)

| |

> ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ---------> "Monit

|

[4]

(ON) |

|

|

> MOD.RST ---OK--> ----| |

! ! ! Returns to "Monitor" from any menu, after 1 min with no keypress.

|ON|

! ! ! Returns to "Monitor" upon succesful Modbus write command.

|

OFF

|

| ST ATUS *1) | v ^ |----> ADR PARITY STP.BIT RSP.DLY AUTO.B ---OK--> ------- -------> ----|

|| YES ^| )oN(]01[]9[]8[]7[]6[

|

|

|| 247 EVEN 1 1000 YES

|| | ODD 2 | NO [12]

|

|

| (STATUS) v ^

|

|

|| SEAR 4800

*1) | |----> ------- ------- ------- ---------> STATUS ---OK--> "Monitor" 9600

Only if automatic baudrate detection is enabled

|

(ORIEN)

NO

|--> ROT.DEV ---OK--> "Monitor" ERR 57.6k

[13] SEAR 115.2k

v ^ 4800

YES 9600

NO 19.2k

The gray shaded menus/texts are only shown for guidance, and are not part of

the DRST-CM specific submenu.

The Modbus submenu is located somewhere in the menu structure of any host

device supporting DRST-CM. The actual place is definedfor each particular

device.

Omega A/S DRST-CM Local Menu.xlsx

Modbus settings- Routing Diagram

DRST-CM Modbus settings - Routing Diagram cont.

| v ^ |----

|--> ------- ------- ------- ------- ------- ------- ------- |--> MOD.EN ---OK--

| (MODB) YES (OFF)

| |-->

Default settings:
Baud rate:
Parity mode:
Stop bit:
Address:
Reponse delay:

19.2 kbps
Even

1

247

0 ms

13

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

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 OBTAIN 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 RETURNS, please have the
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 trademark of OMEGA ENGINEERING, INC.
© Copyright 2018 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.

FOR NON-WARRANTY REPAIRS, consult
OMEGA 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.

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

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Panels & Assemblies

MU

Wire: Thermocouple, RTD & Thermistor

MU

Calibrators & Ice Point References

MU

Recorders, Controllers & Process Monitors

MU

Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

MU

Transducers & Strain Gages

MU

Load Cells & Pressure Gages

MU

Displacement Transducers

MU

Instrumentation & Accessories

FLOW/LEVEL

MU

Rotameters, Gas Mass Flowmeters & Flow Computers

MU

Air Velocity Indicators

MU

Turbine/Paddlewheel Systems

MU

Totalizers & Batch Controllers

pH/CONDUCTIVITY

MU

pH Electrodes, Testers & Accessories

MU

Benchtop/Laboratory Meters

MU

Controllers, Calibrators, Simulators & Pumps

MU

Industrial pH & Conductivity Equipment

DATA ACQUISITION

MU

Communications-Based Acquisition Systems

MU

Data Logging Systems

MU

Wireless Sensors, Transmitters, & Receivers

MU

Signal Conditioners

MU

Data Acquisition Software

HEATERS

MU

Heating Cable

MU

Cartridge & Strip Heaters

MU

Immersion & Band Heaters

MU

Flexible Heaters

MU

Laboratory Heaters

ENVIRONMENTAL
MONITORING AND CONTROL

MU

Metering & Control Instrumentation

MU

Refractometers

MU

Pumps & Tubing

MU

Air, Soil & Water Monitors

MU

Industrial Water & Wastewater Treatment

MU

pH, Conductivity & Dissolved Oxygen Instruments

M5693/11

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