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Installation and Operation Manual
Microprocessor-Controlled
General Purpose Water Baths
280 Series
Models
280, 281, 282, 283, 284, 285, 286 & 288
Precision
170 Marcel Drive
Winchester, VA
USA
Phone: 540-869-8623
Toll Free: 800-621-8820
FAX: 540-869-8626
Manual P/N 36100112 (340016400)
Rev D Dated 08NOV01
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Table of Contents
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Summary of Contents for Precision 280 Series
- Page 1 Installation and Operation Manual Microprocessor-Controlled General Purpose Water Baths 280 Series Models 280, 281, 282, 283, 284, 285, 286 & 288 Precision 170 Marcel Drive Winchester, VA Phone: 540-869-8623 Toll Free: 800-621-8820 FAX: 540-869-8626 Manual P/N 36100112 (340016400) Rev D Dated 08NOV01...
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Page 3: Revision Status
REVISION STATUS INDEX DATE AMENDED PAGES NOTES Initial release 12/98 02/00 Pictorial update of wiring per ECO JGC000223A 07/01 2,8,9,12,17 updated electrical secifications NOV01 Add caution "acidic & caustic substance .."... -
Page 6: General Information
3.04 A high limit temperature cutout is provided in the event of an empty water bath. If the sensor reads a temperature 5°C higher than 3.01 Precision Baths are widely used in research the set temperature, a high temperature cutout and quality control. Their superb temperature... - Page 7 Xv‡uÃBhiyrÃ8‚‰r… 6yyÃH‚qry†...
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Page 9: Operation
To change the temperature setpoint: OPERATION To change the set temperature, continuously CAUTION: press the /\ or \/ key until the desired set EXERCISE CARE WHEN USING ACIDIC OR temperature is displayed. When continuously CAUSTIC SOLUTIONS AS THEY WILL ATTACK pressing either the /\ or \/ keys, the display THE GALVANIZED STEEL BATH BODY IF SPILLED will change slowly at first but after 1 degree... -
Page 12: Troubleshooting Procedures
Troubleshooting Procedures Problem Procedure 9.03 No Heat (cont.) E. If a 5V DC power supply is not available, leave J5 connected to the control board, turn power on, and repeat step D by placing the voltmeter probes on J5, Pins 2 & 3. Check Heater. - Page 13 Troubleshooting Procedures Problem Procedure Check TRIAC (High voltage output of control board) A. Make sure power is disconnected from the unit. B. Connect an AC voltmeter across the heater capable of reading 120 or 230 volts, depending on your particular unit. C.
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Page 16: Replacement Parts List
11.0 Replacement Parts List 120-Volt Models 34541683 34541928 34541916 34541917 34541929 34541918 34541930 34541917 Diffuser Plate Assy. 34537946 34537945 34537946 34537949 34537947 34537954 34537953 34537949 PCB Assy. 34393401 Heater 34247411 34247411 34247412 34247413 34247414 34247414 34247414 34247413 Heater Harness 34394301 Power Harness 34394401 Temp. - Page 17 !'" Qh 9vssˆ†r…ÃQyh‡rÃ6††’ Q87Ã6††’ Crh‡r… Crh‡r…ÃCh…r†† Q‚r…ÃCh…r†† Ur€ƒÃQ…‚irÃ6††’ ...
- Page 21 HEATER HEATER HARNESS ASSEMBLY POWER HARNESS DETAIL "A" TEMPERATURE SENSOR POWER LINE CORD POWER SWITCH 120 VAC WIRING DIAGRAM NOTE: JP3 & JP4 MUST BE INSTALLED FOR 120 VAC OPERATION.