Omega OME-DB-889D User Manual

User’s Guide

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OME-DB-889D

16-Channel Analog Multiplexer Board

Servicing North America:

USA: One Omega Drive, P.O. Box 4047

ISO 9001 Certified Stamford CT 06907-0047

TEL: [phone] FAX: [phone]
e-mail: [e-mail]

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Laval (Quebec) H7L 5A1, Canada
TEL: [phone] FAX: [phone]
e-mail: [e-mail]

For immediate technical or application assistance:

USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA

®

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Servicing Europe:

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TEL: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [e-mail]

Czech Republic: Frystatska 184, 733 01 Karviná, Czech Republic

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Toll Free: 0800-1-66342 e-mail: [e-mail]

France: 11, rue Jacques Cartier, 78280 Guyancourt, France

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Toll Free in France: 0800 466 342
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Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany

TEL: [phone] FAX: [phone]
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M44 5BD United Kingdom
TEL: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

OMEGAnet®Online Service Internet e-mail

www.omega.com [e-mail]

It is the policy of OMEGA 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 Engineering, Inc. 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, patient-connected applications.

OME-DB-889D MULTIPLEXER BOARD .........................................................................................2

1. FUNCTION DESCRIPTION............................................................................................................2

1.1 FEATURES ........................................................................................................................................2

1.2 APPLICATIONS .................................................................................................................................2

1.3 SPECIFICATION.................................................................................................................................2

2. INSTALLING.....................................................................................................................................4

2.1 LAYOUT ...........................................................................................................................................4

2.2 JUMPER SETUP..................................................................................................................................5

2.2.1 JP0 ~ JP15 Analog Input R/C Filter ........................................................................................5

2.2.2 JP16 Analog Output Channel Jumper .....................................................................................5

2.2.3 JP19 Internal / External Power selection ................................................................................6

2.2.4 JP18 Local / Remote Gain control ........................................................................................6

2.3 PIN ASSIGNMENT .............................................................................................................................8

3 ANALOG INPUT & GAIN SETTING............................................................................................10

3.1 INPUT CHANNEL SELECTION ..........................................................................................................10

3.2 GAIN SETTING................................................................................................................................11

3.3. THE THERMOCOUPLE INPUT ......................................................................................................... 12

3.3.1 Voltage - TO - Temperature Conversion................................................................................13

3.3 CJC OUTPUT.................................................................................................................................. 14

4 SIGNAL CONNECTION .............................................................................................................. 15

4.1 FLOATING SIGNAL CONNECTION ................................................................................................... 15

4.2 NON-FLOATING SIGNAL SOURCE...................................................................................................16

4.3 CASCADING OME-DB-889D......................................................................................................... 17

4.4 OPEN THERMOCOUPLE DETECTION................................................................................................18

4.5BLOCK DIAGRAM ...........................................................................................................................19

5 PROGRAMMING ............................................................................................................................20

5.1 USING OME-A-822PGL ...............................................................................................................20

5.3 EXAMPLE PROGRAM ......................................................................................................................21

6. CALIBRATION ...............................................................................................................................23

6.1 CALIBRATION VR DESCRIPTION ....................................................................................................23

6.2 CALIBRATION STEPS ......................................................................................................................23

OME-DB-889D User’s Manual

1

OME-DB-889D Multiplexer Board

1. Function Description

The OME-DB-889D is an expansion multiplexer / amplifier board for use with
OME-A-82X, OME-PCI-1800 series. Each OME-DB-889D multiplexes 16
differential analog input channels into one analog input of the DAS board. The high
grade instrumentation provides software programmable gains of 0.5, 1, 5, 10, 50, 100,
500 and 1000.

Thermocouple measurements are handled easily with OME-DB-889D. The
board includes cold junction sensing and compensation circuitry that provides a
scaling of 24.4mV/°C. Biasing restores are includes for open thermocouples
detentions of voltage measurements or 112 channels of thermocouple measurement.

1.1 Features

z Connects directly to OME-A-82X, OME-PCI-1800 series boards with D-sub 37

connectors.

z Cold-junction compensation for thermocouples and thermocouple open detection.
z Software-programmable instrumentation amplifier
z Gain of 0.5, 1, 5, 10, 50, 100, 500, 1000
z Daisy chain up to ten OME-DB-889D boards

1.2 Applications

z Energy management

z Signal conditioning

z Analog Multiplexer

1.3 Specification

z Accepts thermocouple type : J, K, T, E, S, R, B
z Cold-junction Compensation : +24.4mV/°C , 0V at 0°C
z Overvoltage protection : ±30V Continuous
z Common mode voltage : ±10V max.
z Analog output Voltage to A/D card :±10V

OME-DB-889D User’s Manual

2

Gain Common Mode

Rejection

0.5 99dB

1 99dB

5 114dB

10 99dB

50 123dB

100 123dB

500 123dB

1000 123dB

z Power requirement : +5V@120mA

z Dimension :114mm X 204mm

z Operating temperature : 0~60°C

z Storage temperature : -20~80°C

z Humidity : 5% to 90% non condensing

Non linearity %of

FSR

±0.0004

±0.0004

±0.0004

±0.0004

±0.0004

±0.0004

±0.0008

±0.0008

Settling Time

23uS

23uS

28uS

28uS

140uS

140uS

1300uS

1300uS

OME-DB-889D User’s Manual

3

2. Installing

2.1 Layout

JP19

External

Voltage Input

Jumper /Connector

Name

CN1
CN2
CN3
CN4
CN5

CN6, CN8

CN7

JP0~JP15

JP16

JP17

JP18

JP19

CJC Output

JP18

Function Note

Connect to A/D connector of OME-A-82x series
Cascaded to another OME-DB-889D
Connect to D/O connector of OME-A-82x series
Cascaded to another OME-DB-889D
External +5V power input
Analog input channel 0~ channel 15
CJC signal output connector
Channel 0 ~ channel 15 R/C filter enable

Analog output channel selection

CJC output channel selection

Gain control by on board dip switch or digital

output of OME-A-82x series multi-function card

Use PC’s +5V or External +5V power

VR2 VR1

Select by JP19

Short : Filter Enable

Open : Filter Disable

to OME-A-82x series

A/D card

to OME-A-82x series

A/D card

L : by dip switch

R : by Digital output

OME-DB-889D User’s Manual

4

K

Ω

2.2 Jumper setup

2.2.1 JP0 ~ JP15 Analog Input R/C Filter

The OME-DB-889D provides R/C filter with each analog input channel by jumper

setting.

Channel 0 High

1.2

Channel 0 Low

Short : with filter

Default setting

1.2KΩ

JP0~JP15

Open : Without filter

1uF 50V

2.2.2 JP16 Analog Output Channel Jumper

The OME-DB-889D supports 10 separate jumper to select output channel, This

feature permits up to 10 OME-DB-889D’s be connected to a 10 channel analog input

card. Place the jumper in the output channel according to the channel of the analog

input card selected for that OME-DB-889D board. The following table illustrates the

jumper setting of using the OME-DB-889D with the OME-A-82X series.

X
A/D CH0
A/D CH1
A/D CH2
A/D CH3
A/D CH4
A/D CH5
A/D CH6
A/D CH7
A/D CH8
A/D CH9

JP16 JP17

Analog output

CJC output

X
0
1
2
3
4
5
6
7
8
9

OME-DB-889D User’s Manual

If none of the output channel is used,

leave the jumper in position “X”. If

the CJC output is required for the

thermocouple applications, be aware

that the analog output and CJC output

share the connector for the analog

output and the CJC output.

Note: “X” means channels are not

supported by the OME-A-82Xseries

5

2.2.3 JP19 Internal / External Power selection

The OME-DB-889D requires single +5V power supply. the connector CN5 are

used for the external power supply connection. The OME-A-82X series

multi-function card offers +5V power from the 37 pin connector , The

OME-DB-889D can be directly from the PC I/O bus by connecting the

OME-A-82Xseries multi-function card.

JP19

From PC’s +5V Power

Default Setting

From the CN5 input External +5V power

2.2.4 JP18 Local / Remote Gain control

The OME-DB-889D provides local and remote control and the selection depends on

the setting of the switch SW1.

L R

Remote Gain Control

Default Setting

Note:

“L” Local Gain control : from OME-DB-889D on board dip switch setting

JP18

L R

Local Gain Control

“R” Remote Gain control : from OME-A-82X series A/D card digital output

control

OME-DB-889D User’s Manual

6

Remote Gain Control

When the JP18 is set to “R”, it means Remote Gain Control is selected and the

gain is controlled by the digital signal of connector CN3 bit D4, D5, D6. The bit

pattern and related gain is illustrated as:

CN3

D6 D5 D4 Gain

0 0 0 0.5

0 0 1 1

0 1 0 5

0 1 1 10

1 0 0 50

1 0 1 100

1 1 0 500

1 1 1 1000

Local Gain Control

Sw1

1 2 3 4 Gain

ON ON ON OFF 0.5

ON ON OFF OFF 1

ON OFF ON OFF 5

ON OFF OFF OFF 10

OFF ON ON OFF 50

OFF ON OFF OFF 100

OFF OFF ON OFF 500

OFF OFF OFF OFF 1000

OME-DB-889D User’s Manual

7

2.3 Pin Assignment

The OME-DB-889D provides two 37pin D-Sub connector & two 20-pin flat

cable connector. The CN1, CN2 D-sub connector is analog output link to analog input

connector of OME-A-82X series multi-function card & cascaded another

OME-DB-889D. The CN3, CN4 is digital control multiplex & gain setting link to

digital output connector of OME-A-82x series multi-function card .

Note:

AO_n : analog output channel n

CN1 , CN2

CN3 , CN4

A. GND : Analog ground

Note

OME-DB-889D User’s Manual

8

DOn : DO0~DO3 Multiplexer control bit.

DO4~DO6 Gain control bit

D. GND : Digital Ground +5V : PC’s +5V +12V PC’s +12V

OME-DB-889D User’s Manual

9

3 Analog input & Gain setting

3.1 Input Channel Selection

The DB-990D provides 15 channel differential analog inputs. Input channel selection

is controlled by the 4 bit TTL/CMOS digital data (CN3 DO0~DO3) issued by the

OME-A-82x series multi-function card.

DO 3 DO 2 DO 1 DO 0 Analog input

channel

0 0 0 0 0

0 0 0 1 1

0 0 1 0 2

0 0 1 1 3

0 1 0 0 4

0 1 0 1 5

0 1 1 0 6

0 1 1 1 7

1 0 0 0 8

1 0 0 1 9

1 0 1 0 10

1 0 1 1 11

1 1 0 0 12

1 1 0 1 13

1 1 1 0 14

1 1 1 1 15

OME-DB-889D User’s Manual

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3.2 Gain Setting

The high grade instrumentation provides software programmable gains or

switch selectable gain of 0.5 1, 5, 10, 50, 100, 500, 1000.

Software Setting : JP18 should be place on “R”
Switch Setting : JP18 should be place on “L”

Software Setting

(Remote control)

DO 6 DO 5 DO 4 SW1-3 SW1-2 SW1-1

0 0 0 ON ON ON 0.5

0 0 1 ON ON OFF 1

0 1 0 ON OFF ON 5

0 1 1 ON OFF OFF 10

1 0 0 OFF ON ON 50

Switch Setting

(Local Control)

Gain

1 0 1 OFF ON OFF 100

1 1 0 OFF OFF ON 500

1 1 1 OFF OFF OFF 1000

OME-DB-889D User’s Manual

11

3.3. The Thermocouple Input

The OME-DB-889D can accept thermocouple sensor to measure temperature.

The OME-DB-889D should be set to different gain value if use different

thermocouple type.

If you are usingOME-A-82XPGL series multi-function bard to linked

OME-DB-889D you have got the gain as:

Gain = OME-A-82X Gain X OME-DB-889D Gain

OME-A821PGL Gain = 1 , 2 , 4 , 8 OME-DB-889D Gain = 0.5 , 1 , 5 , 10 ,

50 , 100 , 1000

Examples

OME-A-82XPG

L Series

OME-DB

-889D

1 X 1 1

2 X 1 2

4 X 1 4

1 X 5 5

1 X 10 10

1 X 100 100

2 X 100 200

4 X 100 400

1 X 500 500

1 X 1000 1000

: X : :

: X : :

Thermocouple type & suitable gain

Gain

TYPE E TYPE J TYPE K TYPE R TYPE S TYPE T

-270°C to 1000°C -210°C to 760 -270°C to 1370°C0°C to 1760°C 0°C to 1760°C -270°C to 400°C

-9.835mV to

76.358mV

Gain=50 Gain=100 Gain=50 Gain=200 Gain=200 Gain=200

OME-DB-889D User’s Manual

-8.096mV to

42.922mV

-6.458mV to

54.807mV

0mV to

21.006mV

0mV to

18.612mV

-6.258mV to

20.869mV

12

3.3.1 Voltage - TO - Temperature Conversion

The temperature-versus-voltage relationship of a the thermocouple is not linear.

You can reference the thermocouple reference tables to get V to T values. Or

use temperature conversion equation to get V to T values.

Temperature Conversion Equation:

T = a0 + a1 x + a2 x^2 + a3 x^3 + a4 x^4 + …….. + an x^n

where

T = Temperature

x = Thermocouple Voltage

a = Polynomial coefficients unique to each thermocouple

n = Maximum order of the polynomial

TYPE E TYPE J TYPE K TYPE R TYPE S TYPE T

a0

-100°C to 1000°C 0°C to 760°C 0°C to 1370°C0°C to 1000°C0°C to 1750°C -160°C to 400°C

a1

0.104967248 -0.048868252 0.226584602 0.263632917 0.927763167 0.100860910

17189.45282 19873.14503 24152.10900 179075.491 169526.5150 25727.94369

a2

-282639.0850 -218614.5353 67233.4248 -48840341.37 -31568363.94 -767345.8295

a3

12695339.5 11569199.78 2210340.682 1.90002E+10 8990730663 78025595.81

a4

-448703084.6 -264917531.4 -860963914.9 -4.82704E+12 -1.63565E+12 -9247486589

a5

1.10866E+10 2018441314 4.835606E+10 7.62091E+14 1.88027E+14 6.97688E+11

a6

-1.76807E+11 -1.18452E+12 -7.20026E+16 -1.37241E+16 -2.66192E+13

a7

1.71842E+12 1.38690E+13 3.71496E+18 6.17501E+17 3.94078E+14

a8

-9.19278E+12 -6.33708E+13 -8.03104E+19 -1.56105E+19

a9

2.06132E+13 1.69535E+20

Note:

1. The thermocouple range of this table is this equation limited.

2. Other detail data please reference thermocouple data book.

OME-DB-889D User’s Manual

13

3.3 CJC Output

The OME-DB-889D provides Cold-Junction Compensation (CJC) for the

thermocouple applications. If the CJC is required, place the JP17 in the position of the

channel to be used as a CJC reference. If the CJC is not required, Place the JP17 in

the position “X”.

CJC has output on connector CN7. Using a voltage meter measures CN7 which exists

a voltage related to the OME-DB-889D board temperature. The CJC voltage transfers

to temperature with formula:

T(°C) = V*1000/24.4

A.GND

V: Voltage of CN7

T: Temperature of OME-DB-889D

Example: (Turbo C)
Multi-Function Card: OME-A-822PGL
The OME-DB-889D JP17 placed on “7”.

/*====================Example Program ===================*/
#include <stdio.h>
#include “A822.h>

main(void)
{int ad_channel , gain , trigger_mode, poll_data ;
float temp;
A822_Initialize(0,0x220, -1, -1);

/* Initials OME-A-822PGL Ref. OME-A-822PGH/L Software

Manual */
ad_channel=7;
gain=0;
trigger_mode=1;

for(;;)

{
A822_AD_SetChGainMode(ad_channel , gain , trigger_mode );
/* SettingOME-A-822 A/D channel =7 , Gain=1 , Trigger mode = Software
trigger */
poll_data=A822_AD_PollingVar();
temp=(float)(((poll_data-2048)*5/2048)*1000/24.4);
prinf(“ Temperature = %4.1f °C \n”, temp);

}

}

CN7

CJC output

Voltage meter

+

-

OME-DB-889D User’s Manual

14

4 Signal Connection

The OME-DB-889D can multiplex up to 16 channel differential inputs. Input channel
selection is controlled by a CN3 D4~ D6 digital output by OME-A-82x series
multi-function card.

4.1 Floating Signal Connection

The OME-DB-889D has only differential input channels, each input channel

should be two signal wires. The input should be connected as:

Floating Signal Source

Differential signal input

CH0HI

OME-DB-889

D

CH0LO

A.GND

OME-DB-889D User’s Manual

15

4.2 Non-Floating Signal Source

Some the signal source has one side connect to a local ground. The signal ground with

OME-DB-889D ground will not be same voltage level. The input should be show as:

CH0HI

Common mode Signal Source

Common mode signal input

OME-DB-889D

CH0LO

A.GND

OME-DB-889D User’s Manual

16

4.3 Cascading OME-DB-889D

OME-A-82X series A/D card

1. A821PGH/L

2. OME-A-822PGH/L

3. OME-A-823PGH/L

4. OME-A-826PGH/L

5. PCI-1800PGH/L

Note: PCI-1802 should be via DB-1825
connect to OME-DB-889D

20 Pin Flat Cable

OME-DB-889D #2

OME-A-82X

series

A/D Channel 0 OME-DB-889D #1 0

A/D Channel 1 OME-DB-889D #2 1

A/D Channel 2 OME-DB-889D #3 2

A/D Channel 3 OME-DB-889D #4 3

A/D Channel n OME-DB-889D #n n

A/D Channel 9 OME-DB-889D #10 9

OME-DB-889D JP16

Note: Each OME-DB-889D JP17 place on “X”

OME-DB-889D #3

OME-DB-889D #n

Up to 10 Boards

OME-DB-889D User’s Manual

17

K

Ω

Ω

K

Ω

4.4 Open Thermocouple Detection

The OME-DB-889D provides open thermocouple detection through a resistor

circuitry. These resisters are normally not connected. The user can find on the back of

the board has two solder gaps for each input channel. If you short the solder gaps, the

open thermocouple detection is enabled.

Channel 0 High

Channel 0 Low

37Pin Cable

HJ0

1.2

1.2KΩ

LJ0

100M

-15V

1uF 50V

OME-DB-889

GND

10

Note:

If a thermocouple opens, the bias resistor will slowly pull the input voltage to

-10V then user can use a simple application program to detect the voltage

change.

OME-DB-889D User’s Manual

18

4.5 Block Diagram

OME-A-82X

Analog input

OME-A-82X

D/O control signal

CN1

CN3

CN2

CN4

JP16 JP17

Dip Switch

Control
Logic

CN8 Connector with R/C filter

AMP

CN6 Connector with R/C filter

16 channel Multiplexer

VR1

CJC

VR2

OME-DB-889D Block Diagram

CN1: connect to OME-A-82x series multi-function card

CN2: connect to CN1 of another OME-DB-889D

CN3: connect to OME-A-82x series digital output

CN4: connect to CN3 of another OME-DB-889D

AMP: programmable gain amplifier (PGA)

VR1: PGA off-set adjustment.

VR2: CJC gain adjustment

OME-DB-889D User’s Manual

19

5 Programming

The OME-A-82x series multi-function card can support up to 160 channels by

cascading 10 OME-DB-889D’s without complex programming.

5.1 Using OME-A-822PGL

This section will use OME-A-822PGL to link OME-DB-889D.

The major steps are listed below:

Step 1: Hardware installing.

1. Turn off power of computer.

2. Plug in OME-A-822PGL then connect 37 pin cable & 20 pin flat cables to CN1

and CN3 of OME-DB-889D.

3. Setup OME-DB-889D (Ref. Jumper setting section of OME-DB-889D. The

example program uses default setup )

4. Connect your signal wiring.

5. Turn on your computer power.

6. Installing OME-A-822PGL C library.

7. Now you are ready to programming.

Step 2: Software programming (C Language)

1. Using OME-A-822 library function to initial OME-A-822PGL

2. Setup OME-A-822PGL: Bipolar mode , Gain = 1 , Analog input channel = 0 ,

Trigger mode = Polling mode.

3. Send digital output of OME-A-822PGL data to control OME-DB-889D

D0~D3: OME-DB-889D channel selection, D4~D6: OME-DB-889D Gain setting

4. Reading OME-A-822PGL analog input data

5. Conversion data to voltage or temperature

Note:

The OME-A-82X series programming steps are same as those for the

OME-A-822PGL

OME-DB-889D User’s Manual

20

5.3 Example Program

DEMO_01.C

/* ============== Using OME-A-822 / connect one OME-DB-889D

=================*/

#include <stdio.h>

#include “A822.h”

main(void)

{int data1,data2;

float vol1,vol2;

A822_Initialize(0,0x220,-1,-1);

/* OME-A-822 Base address in 0x220 ref. OME-A-822 Software manual */

for(;;)

{

/*===============reading OME-DB-889D Channel 0 , Gain =1

=============*/

A822_AD_SetChGainMode(0,0,1);

/* Setup OME-A-822 A/D channel 0, Gain = 1 , Polling mode

*/

A822_DO(0x0010);

/* Send D/O data to OME-DB-889D , Channel 0, Gain=1 */

delay(10); /* delay about 43u sec . Ref. Page 3 Settling time */

data1=A822_AD_PollingVar();

/* Reading OME-A-822 A/D data */

vol1=(float)((data1-2048)*5/2048);

printf(“OME-DB-889D channel 0= %6.4f V\n”,vol1);

/*===========reading OME-DB-889D Channel 1 , Gain=10

===============*/

A822_AD_SetChGainMode(0,0,1);

/* Setup OME-A-822 A/D channel 0, Gain = 1 , Polling mode

*/

OME-DB-889D User’s Manual

21

A822_DO(0x0021);

/* Send D/O data to OME-DB-889D , Channel 1, Gain=10 */

delay(10); /* delay about 43u sec , Ref. Page 3 Setting time*/

data2=A822_AD_PollingVar();

/* Reading OME-A-822 A/D data */

vol2=(float)((data2-2048)*0.5/2048);

printf(“OME-DB-889D channel 1= %6.4f V\n”,vol2);

}

}

OME-DB-889D User’s Manual

22

6. Calibration

The OME-DB-889D is calibrated to its best of operation. For environment subjected

to large vibrations, recalibration is recommended. Before calibrating the

OME-DB-889D, user should consider having the following available:

z One 6 digital voltage meter

z One temperature meter

z One OME-A-82x series multifunction card

6.1 Calibration VR Description

There are two VRs on the OME-DB-889D.

VR Num. Description

VR1 Amplifier Offset adjustment

VR2 CJC Gain adjustment

6.2 Calibration Steps

1. Turn off computer power.

2. Connect OME-A-822PGL (Or any OME-A-82x series multi-function card) to

OME-DB-889D.

3. Setup OME-DB-889D to default setting

4. Short CH0HI to CH0LO to A.GND of DB889D.

5. Connect probe of voltage meter to CN7 (CJC output: + , A.GND : - ).

6. Turn on computer power

7. Wait about 5 minute (warn up).

8. Run Calibration program of OME-DB-889D.

9. Close the probe of temperature meter to OME-DB-889D them reading

temperature value.

10. Adjust VR1 until the screen value = 0;

11. Adjust VR2 until voltage meter reading value = temperature value X 2.44mV

OME-DB-889D User’s Manual

23

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 which wear are not warranted, including but 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 it will be
as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS 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 W

ARRANTY

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.

FOR NON-W

ARRANTY

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.

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 2002 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.

M4019/1103

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at www.omega.com

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Wire: Thermocouple, RTD & Thermistor

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