Product Manual - Mutual Screw & Supply
Contents
1. shutdown and becomes the default of next power up cycle Pressing enables disables holding freezing of display and updating of data Pressing and holding enables disables auto power off function indicated by In normal operating mode toggles to select J or K type thermocouple In offset setup mode increases the offset value In normal operating mode selects display of maximum minimum or average temperatures In offset setup mode pressing Y saves setting and exits that mode Pressing and holding enters offset setup mode In normal operating mode pressing turns instrument on or off In offset setup mode pressing decreases offset value DT80 2 only Pressing enables disables T1 minus T2 function Pressing and holding swaps T1 and T2 readings between primary and secondary displays SPECIFIC OPERATING INSTRUCTIONS To display maximum minimum or average temperature push the W key repeatedly until the corresponding icon appears above the reading in the primary display The primary display shows the current channel reading of MAX MIN or AVG The secondary display shows the current channel reading of actual temperature When the instrument powers off the value chosen is saved and becomes the default value for the next power up cycle To select the thermocouple type press the PE key in normal operating mode until the correct letter K or J appears on the left side of the primary display In the case o2. 05 of reading 1 4 F e Supplied Probe s Range 50 to 500 F 45 to 260 C e Operating temperature range 40 to 104 F 5 to 40 C below 80 RH e Storage temperature range 14 to 140 F 10 to 60 C below 70 RH 10 e Input protection Maximum 24V DC or AC e Battery 1 9V NEDA 1604 IEC 6F22 e Battery life Approximately 200 hours e Weight 6 oz 170g e Dimensions 5 12 L x 2 2 W x 1 50 H in 130 L x 56 W x 38 H mm e Auto power off after 15 minutes of no activity MAINTENANCE 8 TROUBLESHOOTING REPLACING THE BATTERY If the icon 4 appears on the display turn off the instrument and replace the battery immediately ROUTINE MAINTENANCE The DT80 1 and DT80 2 require no maintenance other than periodic cleaning To clean the instrument use a soft dry cloth Never use a wet cloth solvents or water REPLACEMENT PARTS The DT80 1 ships with a carrying case and one general purpose K type thermocouple probe with a beaded tip General P N TPK500 The DT80 2 ships with two of these probes To order additional probes of this type or other specialty thermocouple probes refer to page I 38 of General s Full Line or Professional Test Instruments catalogs or visit www generaltools com WARRANTY INFORMATION DT80 1 and DT80 Thermocouple type J K from General Tools 8 Instruments General is warranted to the original purchaser to be free from defects in material and workmanship Subj
3. 1370 C using a K type thermocouple e Measurement accuracy 0 05 of reading 1 4 F e Operating temperature range 40 to 104 F 5 to 40 C e Power Source 1 9V battery OPERATING INSTRUCTIONS Familiarize yourself with the nomenclature in the following two illustrations before using the DT80 1 or DT80 2 BACK FRONT AND TOP VIEWS O Thermocouple T1 input Thermocouple T2 input DT80 2 only Display see next illustration Function keys O Battery cover O Battery compartment DISPLAY ELEMENTS 3 INY N A Ny Tec BY LY HHI nun E A ae 2 gt hou heal EN a PE AV EY UL Auto power off icon Low battery indicator Hold freeze display indicator amp Offset change indicator Enable Maximum Minimum and Average recording also indicates Current Mode Offset Setup Mode indicator Limit indicates that the alarm function is enabled Hi and Lo indicate the reason why alarm sounded T1 T2 Indicates differential temperature mode DT80 2 only Primary display Indicates state of channels selected temperature unit and thermocouple type Secondary display Indicates state of channels se lected temperature unit and thermocouple type Note When a thermocouple is not plugged into the instrument the display reads OL FUNCTION KEYS OVERVIEW Pressing toggles between Celsius and Fahrenheit temperature units scale chosen is saved upon
4. DIGITAL THERMOCOUPLE THERMOMETERS USER S MANUAL Single Dual Thermocouple Thermocouple DT80 1 and DT80 2 Please read this manual carefully and thoroughly before using this product TABLE OF CONTENTS Introduction 0 cece 3 Key Features cece cece cece eee e eens 4 Operating Instructions lt lt lt 5 Display Elements 0cccceeeeeeeeeeenees 6 Function Keys Overview 0cccceeeeeenees 7 Specific Operating Instructions 8 9 Specifications 0ooooooooooooom 10 11 Maintenance amp Troubleshooting 11 Replacing the Battery 00 11 Routine Maintenance cce eee eee 11 Replacement Parts 0cccceeeeeeeeeanes 11 Warranty Information o oooooooooo 12 Return Policy c0cccceeeeeeneeeeeeeanes 13 DispOSal 000 cece cece eee eee eens 13 INTRODUCTION Thank you for purchasing a Thermocouple type J K digital thermometer from General Tools amp Instruments We suggest that you read this user s manual carefully and thoroughly before using the instrument The DT80 1 and DT80 2 are thermocouple type J K digital thermometers The DT80 1 is designed to be used with a single thermocouple the DT80 2 is designed to be fed by two thermocouples configured to deliver a temperature differential Each model uses a high resolution analog to digital converter chip and a microprocessor to convert input temperature
5. ect to certain restrictions General will repair or replace this instrument if after examination the company determines it to be defective in material or workmanship The warranty period begins on the date of purchase You are encouraged to register your product online General will extend your warranty an additional 60 days if you register at www generaltools com ProductRegistry This warranty does not apply to damages that General determines to be from an attempted repair by non authorized personnel or misuse alterations normal wear and tear or accidental damage The defective unit must be returned to General Tools amp Instruments or to a General authorized service center freight prepaid and insured Acceptance of the exclusive repair and replacement remedies described herein is a condition of the contract for purchase of this product In no event shall General be liable for any incidental special consequential or punitive damages or for any cost attorneys fees expenses or losses alleged to be a consequence of damage due to failure of or defect in any product including but not limited to any claims for loss of profits Register now at www generaltools com ProductRegistry to receive a 60 day extension to your warranty GENERAL S RETURN FOR REPAIR POLICY Every effort has been made to provide you with a reliable product of superior quality However in the event your instrument requires repair please contact our Cu
6. f the DT80 2 use the key to also set the correct thermocouple type in the secondary display Both the DT80 1 and DT80 2 will save their setting s upon shutdown and make them the default when they next power up To hold freeze the display and stop updating measurements press the oO key Press it again to unfreeze the display When the HOLD function is enabled all function keys except for the Key are disabled Using the REL key to subtract readings Pressing the key cancels out a relative reading changes the display to O and saves the previous reading as the standard relative reading For example if the primary display is reading 25 C pressing the key changes the display to 0 and saves 25 C as 8 the standard relative reading Then if the temperature rises to 30 C the display will show 5 C 30 25 C If the temperature falls to 20 C the display will show 5 C 20 25 C Pressing the 2 key again disables this function and restores the actual temperature reading to the display The primary display shows the current channel reading of REL The secondary display shows the current channel reading of actual temperature In the case of the DT80 2 to show the current channel reading of REL on the secondary display press and hold the CEB key to swap T1 and T2 To display T1 minus T2 temperature DT80 2 only press the Gua key Press the key again to disable this function The primary d
7. isplay shows the T1 T2 temperature The secondary display shows the current channel reading of actual temperature To swap channels press and hold the key To enable disable the 15 minute Auto Power Off function press and hold the C key with the instrument in normal operating mode until the amp appears or disappears at the upper left of the screen To power the instrument on and off press the Okey If pressing the key fails to shut off the unit that means it is in offset setup mode Exit this mode by pressing the key and then push the Whey again To compensate for thermocouple error you must first set the offset value To do so recommended each time the thermocouple probe is changed 1 Press and hold the key 2 Use the and keys respectively to increase or decrease the offset value The allowable adjustment range is 9 F 5 C 3 Press the key to save the setting and exit offset setup mode To adjust the offset of the secondary channel in the DT80 2 press the key and repeat steps 2 and 3 The instrument will automatically save the offset value upon shutdown and default to it upon the next startup SPECIFICATIONS e Display dual 5 digit LCD e Temperature units Degrees Celsius or Fahrenheit e Display resolution 0 1 e Measurement range 328 to 1922 F 200 to 1050 C using a J type thermocouple 328 to 2498 F 200 to 1370 C using a K type thermocouple e Measurement accuracy 0
8. signals to digital form and display them on a dual display 5 digit black and white liquid crystal display measuring 1 5 by 1 5 inches These two thermocouple thermometers have a measurement accuracy of 0 05 of reading 1 4 F with an unmatched measurement range For example the DT80 1 and DT80 2 can measure and read out temperatures from 328 to 1922 F 200 to 1050 C using a J type thermocouple and temperatures from 328 to 2498 F 200 to 1370 C using a K type thermocouple This very wide measuring range plus a fast response time make these thermocouple thermometers suitable for a wide range of commercial and industrial applications requiring measurement of very high and low temperatures Examples include applications in the food and chemical processing industries HVAC heating ventilation and air conditioning power generation and paper production Simplicity is another asset of thermocouple thermometers Thermocouples work by measuring the potential difference produced at the junction of two wires made of different metals but exposed to the same temperature Since the junction is very small a thermocouple thermometer can be used to measure the temperature at a point reachable by a probe The probes used are inexpensive and easily replaceable KEY FEATURES e Dual 5 digit liquid crystal display e Measurement range 328 to 1922 F 200 to 1050 C using a J type thermocouple 328 to 2498 F 200 to
9. stomer Service to obtain a RGA Return Goods Authorization before forwarding the unit via prepaid freight to the attention of our Service Center at this address General Tools amp Instruments 80 White Street New York NY 10013 212 431 6100 Remember to include a copy of your proof of purchase your return address and your phone number and or e mail address The DT80 1 or DT80 2 are warranted to be free of defects in materials and workmanship for one year after the date of purchase This warranty applies to all repairable instruments that have not been tampered with or damaged through improper use including unauthorized opening of the unit DISPOSAL This symbol on the rear of the case indicates that the DT80 1 and 2 contain materials that should be recycled or disposed of correctly disposal rather than landfilled NOTES NOTES Specialty Tools amp Instruments GENERAL TOOLS 8 INSTRUMENTS 80 White Street New York NY 10013 3567 PHONE 212 431 6100 FAX 212 431 6499 TOLL FREE 800 697 8665 e mail sales generaltools com www generaltools com DT80 1 and DT80 2 User s Manual Specifications subject to change without notice 2014 GENERAL TOOLS amp INSTRUMENTS NOTICE WE ARE NOT RESPONSIBLE FOR TYPOGRAPHICAL ERRORS MAN DT80 1 and DT80 2 3 13 14
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