Omega WMS-T-AL User's Manual
Contents
1. F screen is displayed and the second line will show the minimum and maximum temperatures obtained since the last reset To reset the maximum wind speed value to zero press the Clr button Press the Go button to return to the RUNNING mode This concludes the series of quick start tests SPECIFICATIONS Sensor Unit Sensor Thermistor 10K ohms Accuracy 1 F 77 F Alarm Delay Range ON or Off 0 99 seconds Controls Four push buttons select 1 Run or Pause mode 2 Menu Select 3 Increment 4 Decrement Option slide switch Switches are read only during power up Switch 1 ON TEMPERATURE Switch 2 N A Switch 3 ON C OFF F Switch 4 ON Audible alarms OFF Silent alarms NOTES MADE KAY USA 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 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 apply2. 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 OMEGASs 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 st
3. MADE IN ol YEAR WARRANTY i SO ee AS AA AC Ta 41 44444494444441 bein Z AGIN UL gt a C2 WO hb E aS qu 12 Elas r pe Uae l ta j Mol Ls Ua Ta Un L RRR 2 L HC H z C H P Te Sees CA WMS T AL ser Guide Shop online at omega com OO OMEGA omega com e mail info omega com For latest product manuals omegamanual info Dual Set Point Temperature Alarm omega com CY OMEGA OMEGAnet Online Service Internet e mail omega com info omega com U S A ISO 9001 Certified Canada Servicing North America One Omega Drive P O Box 4047 Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 Canada TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance U S A and Canada Sales Service 1 800 826 6342 1 800 TC OMEGA Mexico Czech Republic Germany Austria United Kingdom ISO 9002 Certified Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN En Espa ol 001 203 359 7803 e mail espanol omega com FAX 001 203 359 7807 info omega com mx Servicing Europe Frystatska 184 733 01 Karvina Czech Republic TEL 420 0 59 6311899 FAX 420 0 59 6311114 Toll Free 0800 1 66342 e mail info omega
4. Pressure Gages lA Displacement Transducers WA Instrumentation amp Accessories FLOW LEVEL lA Rotameters Gas Mass Flowmeters amp Flow Computers WA Air Velocity Indicators lA Turbine Paddlewheel Systems lA Totalizers amp Batch Controllers pH CONDUCTIVITY Dag pH Electrodes Testers Accessories WA Benchtop Laboratory Meters WA Controllers Calibrators Simulators amp Pumps WA Industrial pH amp Conductivity Equipment DATA ACQUISITION lA Data Acquisition amp Engineering Software V Communications Based Acquisition Systems WA Plug in Cards for Apple IBM amp Compatibles WA Datalogging Systems VX Recorders Printers amp Plotters HEATERS lA Heating Cable lA Cartridge amp Strip Heaters WA Immersion amp Band Heaters WA Flexible Heaters WA Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL WA Metering amp Control Instrumentation lA Refractometers WA Pumps amp Tubing VX Air Soil amp Water Monitors 14 Industrial Water amp Wastewater Treatment lA pH Conductivity amp Dissolved Oxygen Instruments M4418 0407
5. e used to set the alarm thresholds for the two alarms to set the delay times between the time that the temperature crosses the alarm threshold and when the alarm state changes conditions and to clear the maximum and minimum temperature value in the temperature log The default condition for the temperature alarms is 75 F Both the on delay and the off delay default values are 15 seconds To change the temperature alarm threshold value press the Menu button The top line of the display will change from Temp XX X F to Temp Alarms F Press the Menu button again and the cursor moves over the Alarm 1 temperature value Press the Up or Dn button to increment or decrement the alarm threshold value for Alarm 1 Press the Go button to return to the RUNNING mode Repeat the process for Alarm 2 To Change the Alarm On and Alarm Off delays with the unit in the RUNNING mode press the Menu then press the Up button until the Alarm Delays s menu appears Press the Menu button and the cursor will move to the ON XX field Then Press the Up or Dn button to increment or decrement the On delay value to the desired value Press the Menu button again to advance the cursor to the OFF XX field and adjust the value with the Up or Dn button Press the Go button to return to the RUNNING mode To view the Minimum and Maximum Temperature registers from the RUNNING mode press the Menu button then press the Up button until the Temps
6. lable BEFORE for current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA 1 Purchase Order number under which the product 1 Purchase Order number to cover the COST was PURCHASED of the repair 2 Model and serial number of the product under 2 Model and serial number of the product and warranty and 3 Repair instructions and or specific problems 3 Repair instructions and or specific problems relative to the product 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 2007 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 Where Do Find Everything Need for Process Measurement and Control OMEGA Of Course Shop online at omega com TEMPERATURE Dag Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies WA Wire Thermocouple RTD amp Thermistor lA Calibrators amp Ice Point References 14 Recorders Controllers amp Process Monitors WA Infrared Pyrometers PRESSURE STRAIN AND FORCE WA Transducers amp Strain Gages WA Load Cells amp
7. ode and the alarm threshold values The user can control three parameters for each alarm channel Threshold delay before the relay triggers after threshold temperature is crossed and delay time before the relay turns off after the temperature re crosses the threshold Each relay can be used in either the normally open or the normally closed mode A piezoelectric buzzer in the control module can be activated to turn on when ever the alarm state is active General Description The WMS T AL consists of two components a temperature sensor to measure temperature and a control module TEMPERATURE SENSOR The temperature sensing probe is based on a precision thermistor and is designed to measure over a wide range of temperatures The thermistor has a resistance value of 10 000 ohms at 25 C and has a highly reproducible response curve The sensor accuracy is 1 F 0 55 C Resolution is to 0 1 F 0 05 C The measurement range is from 40 F 40 C to 160 F 60 C The Alarm range is from 40 F 3 C to 160 F 3 C The temperature sensor is supplied with a 40 ft Cable CONTROL MODULE The function of the Control Module is to activate its control relays when ever user selected temperature vales are reached and sustained for user determined periods of time The Control Module is microprocessor based and is controlled via push buttons and a two row liquid crystal display There are Option Switches on the printed circuit board for selecti
8. on of temperature units F or C for enabling the audible alarm and a potentiometer for controlling the LCD contrast User Interface There are two modes of operation for the model WMS T AL Temperature Alarm RUNNING and PAUSED The RUNNING mode is the normal operating mode when the unit is initially powered up The PAUSED mode is any state other than the normal OPERATING mode Pressing any button during the RUNNING mode will place the unit in the PAUSED mode MENU STRUCTURE The user interface contains the following menu items e Temperature Alarms e Alarm Delays e Maximum Minimum Temperature The MENU Button The MENU button will take the unit out of the RUNNING mode and allow the user to change the operating parameters and view maximum values Once the MENU button has been pressed the user may use the UP and DOWN buttons to scroll through the menu Subsequent presses of the MENU button will bounce the cursor between editable fields of any menu item where applicable When in an editable field the cursor will become a blinking block The GO Button The GO Button always returns the unit to the RUNNING mode regardless of where the user may be in the menu structure The UP and DOWN Buttons The UP and DOWN buttons control either of two things 1 Scrolling through menu items when the user is not in an editable field 2 Scrolling through user selectable values when the user is in an editable field The CLEAR Button P
9. ressing the CLEAR button performs the following actions 1 If the user is in an editable field the field will be set to 0 2 It the user is viewing the maximum minimum temperature value the recorded value will be cleared 3 If the unit is alarming all delay counters will be cleared ALARM Features The WMS T AL Temperature Alarm provides the following alarm features e Two independent temperature alarms e Programmable On and OFF delays e Pausing of alarm when any key is pressed e When audible Alarm 1 will produce a beep at 400 ms intervals while Alarm 2 will beep at 200 ms intervals e When the alarms are in the audible mode and both alarms are active Alarm 2 will have precedence e The alarm can be put into the silent mode by moving Switch 4 to the off position on the switch block at the bottom of the circuit board It is necessary to re boot the WMS T AL after moving the switch in order to in able the change Units of Measure It is possible to display temperature values in either F or C units Selection of the unit system to be used is done with Switch 3 on the switch block at the bottom of the circuit board The Off position is for F and the On position is for C It is necessary to re boot the WMS T AL after moving the switch in order to in able the change Temperature Sensor Placement The validity of temperature signals can be compromised by the choice of the location of the anemometer with respect to the surrounding
10. rict 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 WARRANTYDISCLAIMER 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 FOR NON WARRANTY REPAIRS consult OMEGA following information avai
11. shop cz Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5BD United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in United Kingdom 0800 488 488 e mail sales omega co uk 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 WMS T AL Dual Set Point Temperature Alarm Introduction The WMS T AL is a microprocessor based dual set point Temperature Alarm packaged in a NEMA 4X box with a transparent cover It has been designed with two independently controlled relays The relays are used to control power to the users temperature sensitive device s or to operate operator selected secondary alarms The control module has a liquid crystal digital display and push buttons for viewing and selection of the operating m
12. terrain Placement of the temperature sensor should follow standards established by agencies such as the World Meteorological Organization WMO and the National Oceanic and Atmospheric Administration s NOAA National Weather Service NWS Temperature Inputs The temperature inputs are P17 TMP1 and P18 TMP2 Power Supply Use a 12V AC or DC power supply on the ACin DCin and ACin DCgnd terminals Earth Ground Attach a wire of at least 18 AWG or larger to the EARTH terminal The other end of this wire must be attached to a metal water pipe or a copper ground rod This is the ground path for all of the lightning and electrostatic protection devices incorporated on the WMS T AL circuit board It is very important that this earth ground connection is made Your WARRANTY may be voided if the earth ground connection is not made QUICK START Before permanently installing the WMS T AL it is advisable to bench test it to gain familiarity with its operation The test is conducted in the following manner Attach the temperature sensor leads to the terminals on the WMS T AL circuit board labeled TMP1 and TMP2 Attach 12V dc or ac to the terminals on the WMS T AL circuit board marked AC in DC in and AC in DC gnd When the WMS T AL circuit board is energized the LCD is activated and it will display the temperature on the first line and the alarm set point values on the second line There are five control buttons next to the LCD These ar
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