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User’s Guide
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WMS-T-AL
Dual Set Point Temperature Alarm
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® OMEGAnet Online Service Internet e-mail omega.com info@omega.com Servicing North America: U.S.A.: One Omega Drive, P.O. Box 4047 ISO 9001 Certified Stamford, CT 06907-0047 TEL: (203) 359-1660 FAX: (203) 359-7700 e-mail: info@omega.com Canada: 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 ® Customer Service: 1-800-622-2378
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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 mode a
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MENU STRUCTURE The user interface contains the following menu items: • Temperature Alarms • Alarm Delays • 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 ite
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• When audible, Alarm 1 will produce a beep at 400 ms intervals while Alarm 2 will beep at 200 ms intervals. • When the alarms are in the audible mode and both alarms are active, Alarm 2 will have precedence. • 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 possib
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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 firs
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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 5
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NOTES:
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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 w
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