User s Guide CN8200 SERIES. Communications & Options Guide. omega.com. info@omega.com

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1 User s Guide omega.com info@omega.com TM CN00 SERIES & s Guide

2 USA: ISO 00 Certified One Omega Drive, Box 0 Stamford CT Tel: (0) -0 FAX: (0) info@omega.com omega.com OMEGAnet On-Line Service 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. Internet info@omega.com For immediate technical or application assistance: USA and Canada: Sales Service: / -00-TC-OMEGA Customer Service: / -00--BEST Engineering Service: / -00-USA-WHEN TELEX: 0 EASYLINK: CABLE: OMEGA Benelux: Postbus 0, 0 LA Amstelveen The Netherlands Tel: () 0 0 FAX: () 0 Toll Free in Benelux: nl@omega.com Czech Republic: Rudé armády, 0 Karviná Tel: 0 () FAX: 0 () Toll Free: czech@omega.com France:, rue Denis Papin, 0 Trappes Tel: () FAX: () 0--0 Toll Free in France: france@omega.com Servicing Europe: TM Canada: Bergar Laval (Quebec) HL A Tel: () - FAX: () - info@omega.ca Mexico: Tel: (00) 00-- FAX: (00) 0--0 En Espan ~ ol: (00) espanol@omega.com Germany/Austria: Daimlerstrasse, D- Deckenpfronn, Germany Tel: (00) 0 FAX: (00) 0 Toll Free in Germany: 000 TC-OMEGA SM germany@omega.com United Kingdom: ISO 00 Certified One Omega Drive River Bend Technology Centre Northbank, Irlam Manchester M EX England Tel: + (0) FAX: + (0) Freephone: sales@omega.co.uk Table of Contents For information and instructions related to basic operations, refer to the Series CN00 operator s manual supplied with your controller. s Wiring Diagrams Dual Alarm Outputs (s -AL) Dual Volt DC Alarm Outputs ( -AL) Relay, N.O. Alarm Output ( -AL) RS- ( -C) RS- ( -C) Contact/ Input with Alarm (s -RSP, -RSP, -RSP ) 0 Transducer Excitation (s XP, -XP, -XP, -XP) Process Output (s -PVSV, -PVSV) Guide to Remote s Omega+ Protocol - Message Format - Sample Commands - Request Messages - Response Messages - Parameter List - Auxiliary Commands - Error Codes 0

3 Dual Alarm Outputs -AL: Dual Alarm Output, N.O. Dual Vdc Alarm Outputs -AL: Dual Vdc Alarm Outputs This optional hardware module provides two alarm drive outputs. LED indicators A and A are used to indicate alarm conditions as configured in the Alarm Menu. TYPICAL OUTPUT CONNECTION TYPICAL CONNECTION USING PIEZOELECTRIC AUDIBLE ALARM DEVICE AMP FUSE LOAD 0-0 VAC MANUFACTURED WITH DUAL VDC ALARM OPTION BOARD. PART #A0U0 SONALERT CONTROLLER V OUTPUT CONFIGURATION V AMP FUSE LOAD 0-0 VAC LED INDICATOR K FIELD CONNECTIONS FIELD CONNECTIONS 0 0 TYPICAL CONNECTION USING LED INDICATOR WITHOUT LIMITING RESISTOR Description: -AL: Dual alarm, N.O. Load Limits: Max. Load Current A rms Min. Load Current 0. ma rms Power Factor Range 0. to.0 (can drive small motors, solenoids, valves, and contactors) Max. Surge Current Non-repeating for second. A Max. I T for fusing (0.0 sec). amp-squared seconds ( A - ABC typical fuse) Description: Isolation: Dual V outputs with clamping diodes Pins & are connected internally Source current is limited to ma (000 ohm resistor) Open circuit voltage is volts Isolation 00 volts ac/dc either output to instrument

4 Relay, N.O. Alarm Output -AL: Relay, N.O. Alarm Output AMP FUSE LOAD * SUPPLY VOLTAGE * RS- -C: RS- (one-to-one) 0 FEET OR LESS COMPUTER TX RX 0 FIELD CONNECTIONS GND Description: NO (Normally open) relay contact is closed when either alarm is active. Jumpers on the board can be removed to activate the output for a single alarm only: JP - Alarm A JP - Alarm A RX TX 0 D-SUB STYLE PIN MALE FIELD CONNECTIONS The relay life is greater than 00,000 operations at operations per second switching full load. *Connect load and supply voltage per the following table: Load Type Amp Voltage Limit Resistive DC 0 Vdc Inductive DC (L/R = ms) 0 Vdc Resistive AC 0 Vac Inductive AC (pf = 0.) 0 Vac Motor, AC, / hp 0 Vac Tungsten Lamp, 0 W 0 Vac Description: Provides a one-to-one connection between the controller and an RS- port. Computers, PLCs, or dumb terminals may be used to set and access controller data.

5 RS- -C: RS- (one-to-many) Contact/ Input with Alarm s -RSP, -RSP, -RSP Remote Setpoint Switch, with Alarm (Contact Input) RS-/RS- CONVERTER (Athena P/N C00U0)* DATA CABLE ASSEMBLY DB MALE/MALE COMPUTER Input Menu UP TO 000 FEET FIELD CONNECTIONS D-SUB STYLE PIN FEMALE SOLDER PIN CONNECTOR 0 TO PINS AND (-) TO CONTROLLER TERMINAL (+) TO CONTROLLER TERMINAL AMP FUSE ALARM LOAD 0-0 Vac 0 OHMS Description: LAST CONTROLLER TERMINATION (UP TO CONTROLLERS) Provides one-to-many communications. If run exceeds 000 ft., terminate the controller furthest from the computer by connecting a 0-ohm, /-watt resistor between terminals and. *Converter is supplied with a wallplug-mount power transformer. Description: 0 OR OPTIONS 0 AND FIELD CONNECTIONS 0 OPTION Dual function board (functions unrelated) a. Output alarm is energized when either A or A is active. b. input controls Remote Standby, Ramp- Soak Run/Hold, OR Second Setpoint Select. (+) 0 ma max. (-)

6 RS- s -C-DIC, -C-DIO, -C-DIV, -C-MOD, -C-MOD-DIC, -C-MOD-DIO, -C-MOD-DIV: Input plus RS- Contact/ Input with Alarm TO PINS AND 0 UP TO 000 FEET RS-/RS- CONVERTER* s -C-DIC, -C-DIO, -C-MOD-DIC, -C-MOD-DIO RS DATA CABLE ASSEMBLY DB MALE/MALE COMPUTER D-SUB STYLE PIN FEMALE SOLDER PIN CONNECTOR Load Limits: Max. Load Current: Min. Load Current: Power Factor Range: Max. Surge Current, Non-Repeating for second:. A Max. I T for fusing (0.0 sec): -RSP: Active when switch closed. -RSP: Active when switch open. -RSP: Active when V input present A rms 0. ma rms 0. to.0 (can drive small motors, solenoids, valves, and contactors). amp-squared secs (A - ABC typical fuse) 0 OHMS OR LAST CONTROLLER TERMINATION (UP TO CONTROLLERS) (+) 0 ma max. (-) s -C-DIV, -C-MOD-DIV TO CONTROLLER TERMINAL (-) (+) TO CONTROLLER TERMINAL Note: See previous page for control input menu selections Description: 0 Provides one-to-many communications. OPTION If run exceeds 000 ft., terminate the controller furthest from the computer by connecting a 0-ohm, /-watt resistor between terminals and. *Converter is supplied with a wallplug-mount power transformer. 0

7 Transducer Excitation -XP, -XP, -XP, -XP: Transducer Excitation Auxiliary Output -PVSV, -PVSV: Process Output Menu ( - 0 Vdc INPUT) RELATIVE HUMIDITY SENSOR OR VOLT OUT Description: The transducer excitation option provides power to remote transducers. The transducer outputs, in turn, provide a signal to the controller input which can be scaled in the appropriate engineering units. -XP: Vdc -XP: Vdc -XP: 0 Vdc -XP: Vdc All options will provide at least 0 ma. The transducer circuitry is thermally protected from short circuits.

8 Auxiliary Output -PVSV, -PVSV: Auxiliary Output Description: 0 FIELD CONNECTIONS /0 ma REMOTE INDICATOR 0/0 ma REMOTE INDICATOR (OPTION ( 0 -PVSV) AND ) 00 OHM RESISTOR MUST BE CONNECTED BETWEEN PINS & FOR VOLTAGE OPTIONS (OPTIONS & ) - V INDICATOR 0 - V INDICATOR ( (OPTION -PVSV) & ) The Setpoint Variable or Process Variable is transmitted to a remote device (chart recorders, indicators, data recorders, computers, process controllers, etc.) with of different interfaces: -PVSV: -0 ma -PVSV: 0- V The output signal is scalable in the Auxiliary Output Menu. Multiple remote indicators may be driven by the controller. For current (ma) options, the remote indicators are connected in series. The sum of the input resistance for all remote indicators must be less than 00 ohms. For voltage options, the remote indicators are connected in parallel. The sum of the currents for all remote indicators must be less than 0 ma. Three remote communications options are available for the CN00 which allow interfacing to remote devices utilizing the most common industry standards: RS and RS. Remote s RS- This method allows bidirectional data transfer via a threeconductor cable consisting of signal ground, receive input and transmit output. It is recommended for communication distances less than 0 feet between the computer terminal and the instrument. Note: Multiple instruments cannot be connected to the same port. The RS port is optically isolated to eliminate ground loop problems. Typically, Data Out of the computer/ terminal connects to the RCV terminal. Data In connects to the XMT terminal. If shielded cable is used, it should be connected to the frame ground at one end only. Signal ground is to be connected at appropriate ground terminals (refer to wiring diagram on next page). RS- The RS multipoint capability allows up to controllers to be connected together in a half-duplex network or up to 00 controllers with an appropriate communications repeater.

9 Note: Call factory for a recommended RS converter. Figure a. Wiring diagram for RS- digital communications. RX TX 0 0 FEET OR LESS GND FIELD CONNECTIONS This method allows bidirectional data transfer over a twisted pair cable. The twisted pair cable is a transmission line; therefore, terminating resistors are required at the most distant ends of the line to minimize reflections (typically 0 ohms at each end). The RS circuit is fully optically isolated, eliminating ground loop problems. Parallel drops from the transmission lines should be kept as short as possible; however, the line may be daisy-chained at each controller. The polarity of the line is important and each device will specify an A (+) and B (-) connection. TX RX D-SUB STYLE PIN MALE COMPUTER Figure b. Wiring diagram for RS- digital communications. UP TO 000 FEET 0 TO PINS AND RS-/RS- CONVERTER (Athena P/N C00U0)* FIELD CONNECTIONS (-) TO CONTROLLER TERMINAL (+) TO CONTROLLER TERMINAL DATA CABLE ASSEMBLY DB MALE/MALE COMPUTER D-SUB STYLE PIN FEMALE SOLDER PIN CONNECTOR Omega+ Protocol The Omega+ Protocol provides an easy way to query and modify controller parameters using a personal computer and the optional digital communications option of the CN00. In this manual, the word host refers to the personal computer that s communicating with the controllers in the serial link, and the word slave refers to the controllers themselves. All transactions between the host and the slaves are done with messages consisting of only printable ASCII characters. There are only two primary types of messages: Requests and Responses. Messages coming from the host are called requests and messages coming from the slaves are called responses. With the exception of a broadcast request, for every request sent from the host, the slave will send back a response. If a slave does not respond within 00 milliseconds, then the request can be considered lost. A broadcast request is a request having an ID of 00 (see Message Formats on next page). It is used to address all slaves on the network. All slaves on the network will perform the actions requested in a broadcast message. However, a response message will not be returned. Therefore, the host can only broadcast Write or Auxiliary Command Requests. All slaves will ignore all Read Broadcast Requests. 0 OHMS LAST CONTROLLER TERMINATION (UP TO CONTROLLERS)

10 Menu Omega+ Protocol (Standard) Message Formats All Omega+ messages adhere to the general format of: [START CHAR][ID][ZONE][TYPE][PARAM][ERROR] [DATA][CHKSUM][END CHAR] START CHAR This is a single character which designates the start of the message. For a Request message, this character is the ASCII $ and for a Response message, this character is the ASCII %. Defined as start bit / N# data bits / Parity odd, even, none / N# stop bits ID This is a two-character ID identifying the receiving controller. Controller IDs go from - inclusively and all slaves in the network must have unique IDs. The ID number of 00, when used in a request, designates a broadcast message that is used to address all controllers in the network. See the section Request Message for an explanation of the broadcast message. In order to represent with just two ASCII characters, a number system known as the Message Code Numbering System is used. In this system, the most significant digit is represented with the numbers 0- and the letters A-Z and the least significant digit is represented with the numbers 0-.

11 The numbers 0- have the same values as their decimal counterparts and the letters A-Z have the values of 00-0 inclusively in increments of 0. Type This is a single character identifying the type of message. The following table lists the type characters for all messages. Example: Message Code Value = Decimal Value = = A = 00 A 00 + = 0 B 0 + = P 0 + = Zone This is a two character ID identifying the Zone number in multi-zone capable controllers. For the CN00, this number must be 0. TYPE character R r W w A Message Type Read Request or Read Response Returning a Positive Result Read Response Returning a Negative Result Write Positive Value Request and Response Write Negative Value Request and Response Auxiliary Command For further information, see following sections on the different message types. 0

12 PARAM This is a two character, message specific, parameter ID. For a Read/Write Request or Response message, this ID identifies the controller parameter. For an Auxiliary Command Request or Response message, this ID specifies the command. STATUS This is a single-character field used in all response messages, containing a status code specifying the status of the request message received. IMPORTANT: The data field in the Read and Write Request and Response messages must and will only contain the characters 0 -, and the decimal point.. All other characters are considered illegal. When the data field is listed as Unused or Ignored in an auxiliary command, it does not mean that the field can be skipped when sending in the request message. Instead, this field must be padded with any 0 alphanumeric (only letters and numbers are allowed) ASCII characters. DATA This field contains the ASCII representation of the value of the parameter. For the Auxiliary Request or Response messages, this field either contains the ASCII representation of a numeric value or just ASCII data. The length of this field depends on the message type. The discussion on the specific message types gives the exact requirements for this field. All ASCII representations of numeric values must be done using the characters 0 -, and.. Any use of other ASCII characters, including and - will result in a bad message. Negative numbers CANNOT be represented by preceding the number with - character. Instead, a special message type is used. See subsequent sections for more information.

13 Examples of valid numeric representations for a character data field: Numeric Value.0000 ASCII Representation CHKSUM This is a two character Message Code Numbering System, representing the sum of all the ASCII values of all the characters (excluding the START, CHAR, the END CHAR, and the CHKSM themselves) in the message. The sum is computed using the following formula: CHKSM = SUM(All Message Characters)% % represents the modulus operator. END CHAR This is a single character designating the end of the message. For all messages, the character used is <CR>, the carriage return. Examples of invalid numeric representations for character data field: (B represents a blank, or a space, character) Numeric Value Bad ASCII Representation Why? BBBBB Leading blanks.0bbbb are not allowed. Trailing blanks are not allowed is not allowed. Request Messages: Request Messages are sent from the host to the slaves. Each request will have an ID identifying the intended recipient of the request. If the ID is 00 (zero), then the request is a broadcast message. All slaves will perform the action requested in the broadcast request. However, a response message will not be returned. Therefore, it only makes sense to send Write or Auxiliary Command Requests as broadcast requests. There are three types of Request Messages: Read, Write, and Auxiliary Commands.

14 The Read Request: The Read Request is used to query parameter values and it has the following message format: [START CHAR][ID][ZONE][TYPE][PARAM][CHKSUM][END CHAR] Field Description: TYPE Must contain the uppercase letter R. Request Message $ØØRØC<CR> $ØØRØC<CR> $ØØRØC<CR> Description Queries the value of the Process Variable of Controller #. Queries the value of the EEPROM Setpoint of Controller # Queries the value of the EEPROM Setpoint of Controller #. END CHAR CHKSUM PARAM TYPE ZONE ID START CHAR Examples of the responses to these requests are given in later sections on Response Messages. The Write Request: The Write Request is used to modify parameter values and it has the following message format: [START CHAR][ID][ZONE] [TYPE][PARAM][DATA][CHKSUM][END CHAR] Field Description: TYPE This field must contain one of the following two characters. Request Message W Value in DATA is a positive value. w Value in DATA is a negative value. DATA A six-character ASCII representation of a numeric value. Description $ØØWØØ.G<CR> Change both the RAM and EEPROM copies of Setpoint # in controller # to the value of 0. $ØØwØØ.J<CR> Change only the RAM copy of setpoint # in controller # to the value of -0. (notice the lowercase w ). END CHAR CHKSUM DATA PARAM TYPE ZONE ID START CHAR

15 The Auxiliary Command Request: The Auxiliary Command Request is used to issue commands to the controllers and it has the following message format: Field Description: TYPE This field must contain the uppercase letter A Request Message $ØØAØXXXXXXXXXXL<CR> $ØØAØØØØ.ØØØØØ<CR> DATA A ten-character ASCII representation of a numeric value or 0 alphanumeric ASCII characters. Description Tell controller # to load all parameters with their defaults. The 0 X s are padding characters. Tell controller # to perform a low RTD calibration. Response Messages: Response Messages are replies to the requests sent from the host. For each request received, the slave will reply back with a response. For all requests, the Omega+ Protocol specifies a maximum response time of 00 milliseconds. If a response is not received after 00 milliseconds, that request can be considered lost. There are three types of Response Messages: Read, Write, and Auxiliary Commands. END CHAR CHKSUM DATA PARAM TYPE ZONE ID START CHAR

16 The Read Response: The Read Response will be sent in response to a Read Request. Some examples: The Write Response: The Write Response will be sent in response to a Write Request. Some examples: Request Message Description Request Message Description %ØØRØØ.K<CR> %ØØRØG<CR> %ØØrØØ.ØØØN<CR> The value of the Process Variable is. Degrees C. A serial transmission has occurred: Framing Error The value of the EEPROM setpoint # is - Degrees C (notice the lowercase r ). END CHAR CHKSUM DATA STATUS PARAM TYPE ZONE ID START CHAR %ØØWØI<CR> A serial transmission error has occurred: Parity error. Write failed. %ØØwØØK<CR> RAM copy of setpoint # modified successfully. END CHAR CHKSUM STATUS PARAM TYPE ZONE ID START CHAR 0

17 The Auxiliary Command Response: The Auxiliary Command Response will be sent in response to an Auxiliary Command Request. Table. Parameter List (Omega+ Protocol) Parameter Parameter Some examples are: Number Description Number Description Controller Type Manual Control Request Message Description Software Version Percentage Ø Output Deadband %ØØAØØXXXXXXXXXXØ<CR> Default load all parameters has started. Version Output Hysteresis Status Byte Output Proportional %ØØAØØØ.ØØØØØØØØB<CR> RTD low calibration Process Value Band on controller # has Operating Mode Output Proportional started. Access Level Band END CHAR Contact/ Ø Rate/Derivative Action CHKSUM Input State Reset/Integral Action Setpoint - RAM, Manual Reset/ DATA EEPROM Internal Action STATUS Ø Setpoint - RAM Output Deadband PARAM Only Output Hysteresis TYPE Second Setpoint - Autotune Damping ZONE RAM, EEPROM Ø Recipe ID Second Setpoint - Single Setpoint Ramp START CHAR RAM Only Time Remote Analog Ramp Time Setpoint Ramp Time Recipe Setpoint Ramp Time Output Percentage Ramp Time Output Percentage Ramp Time Manual Control Ramp Time Percentage Ramp Time

18 Table. Continued Parameter Parameter Number Description Number Description Ramp Time Soak Time Ø Ramp Event Soak Event Ramp Event Soak Event Ramp Event Soak Event Ramp Event Soak Event Ramp Event Soak Event Ramp Event Soak Event Ramp Event Ø Soak Event Ramp Event Soak Event Soak Level Recycle Number Soak Level Holdback Band Ø Soak Level Termination State Soak Level Power Resume Soak Level Input Bias Soak Level Input Low Scale Soak Level Input High Scale Soak Level Lower Setpoint Limit Soak Time Ø Upper Setpoint Limit Soak Time Input Filter Soak Time Input Type Soak Time Output Type Ø Soak Time Output Action Soak Time Output Alarm Soak Time Action Table. Continued Parameter Number Description Output Alarm Operation Output Alarm Delay Output Alarm Inhibit AØ Output Process Alarm Setpoint A Output Deviation Alarm Setpoint A Output Cycle Time A Output Low Limit A Output High Limit A Output Type A Output Action A Output Alarm Action N/A A Output Alarm Operation A Output Alarm Delay N/A BØ Output Alarm Inhibit B Output Process Alarm Setpoint B Output Deviation Alarm Setpoint B Output Cycle Time B Output Low Limit B Output High Limit Parameter Number Description B TC/RTD Decimal Position B Linear Decimal Position B Display Filter B Display Units C Display Blanking C Alarm Action C Alarm Operation C Alarm Delay C Alarm Inhibit C Alarm Process Setpoint C Alarm Deviation Setpoint C Alarm Action C Alarm Operation DØ Alarm Delay D Alarm Inhibit D Alarm Process Setpoint D Alarm Deviation Setpoint D Communication Protocol D Communication ID D Communication Baud Rate D Communication Data Format D Communication Transmit Delay E Output Failsafe % E Output Failsafe %

19 Table. Continued Parameter Number Description E Loop Break Time E Highest Reading E Lowest Reading E Selection N/A E TC Zero Calibration FØ TC Span Calibration F RTD Zero Calibration F RTD Span Calibration F Low-Voltage Zero Calibration F Low-Voltage Span Calibration F High-Voltage Zero Calibration F High-Voltage Span Calibration F Current Zero Calibration F Current Span Calibration G Auxiliary Output Variable G Auxiliary Output Scale Low G Auxiliary Output Scale High G RAS Scale Low G RAS Scale High Parameter Number Description G Contact/ Switch Function H Autotune State H Recipe State H Current Recipe Segment H Active Setpoint H Resume Exhaustion Flag F Low-Voltage Span H LED Status Indicator H RTD (with decimal support) Zero Calibration IØ RTD (with decimal support) Span Calibration Auxiliary Commands: Command: Load Parameter Defaults Parameter #: 0 Description Request Data Field: Response Data Field: Command: Parameter #: 0 Description: Restore all menu parameters to their default values. Ignored. Ignored. Perform Process Low Calibration Performs a Low Calibration. The data field in the request message specifies the process. Make sure the prerequisite for the calibration is satisfied before issuing a calibration command. For instance, the RTD calibration command must only be used when the input sensor type is chosen as RTD or RTD w/ Decimal.

20 Request Data Fields: A 0 character ASCII representation of a numeric value specifying what to calibrate. 0 - Thermocouple - RTD, Resistive Thermal Device - Linear Response Data Field: Ignored. Command: Parameter #: 0 Description: Request Data Field: - RAS, Remote Analog Setpoint Perform Process High Calibration Performs a High Calibration. The data field in the request message specifies the process. Make sure the prerequisite for the calibration is satisfied before issuing a calibration command For instance, the RTD calibration command must only be used when the input sensor type is chosen as RTD or RTD w/ Decimal. A 0 character ASCII representation of a numeric value specifying what to calibrate. Command: Parameter #: 0 Description: Request Data Field: 0 - Thermocouple - RTD, Resistive Thermal Device - Linear - RAS, Remote Analog Setpoint Retrieve Display Retrieves the string currently displayed on the slave s display. The data field in the request message specifies which display and the data field in the response message contains the string. A 0 character ASCII representation of a numeric value specifying which display to retrieve data from. 0 - Lower Display - Upper Display Response Data Field: The ASCII string. Command: Parameter #: 0 Description: Request Data Field: Clear Latched Alarms Clear all latched alarms. Ignored. Response Data Field: Ignored.

21 Table. Error Codes Returned. Notes Code Description 0 No error. Framing error. Hardware error. Parity error. Bad character in the TYPE field. Bad message. Message cannot be understood. Bad checksum. The checksum received did not match the checksum of the message. Bad zone ID. Bad auxiliary command ID. The auxiliary command is not supported in this controller. Bad parameter ID. The parameter is not supported in this controller. A B C Bad data. Bad representation in the data field or data is out of range. Attempt to write to a read only parameter. Cannot write to a parameter because it s in use. 0

22 Notes WARRANTY/ DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of months from date of purchase. OMEGA Warranty adds an additional one () month grace period to the normal two () 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: () as a Basic Component under 0 CFR (NRC), used in or with any nuclear installation or activity; or () 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:. Purchase Order number under which the product was PURCHASED,. Model and serial number of the product under warranty, and. Repair instructions and/or specific problems relative to the product. FOR NON-WARRANTY REPAIRS, consult OMEGA for current repair charges. Have the following information available BEFORE contacting OMEGA:. Purchase Order number to cover the COST of the repair,. Model and serial number of the product, and. 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 00 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.

23 Where Do I Find Everything I Need for Process Measurement and Control? OMEGA Of Course! 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 -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 M/0