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1. Distributed by JAMECO ELECTRONICS www Jameco com 1 800 831 4242 The content and copyrights of the attached material are the property of its owner FLUKE 51 amp 52 Series Il Thermometer Users Manual English September 1999 Rev 1 6 01 1999 2001 Fluke Corporation All rights reserved Printed in USA All product names are trademarks of their respective companies Limited Warranty amp Limitation of Liability This Fluke product will be free from defects in material and workmanship for 3 years from the date of purchase This war ranty does not cover fuses disposable batteries or damage from accident neglect misuse or abnormal conditions of opera tion or handling Resellers are not authorized to extend any other warranty on Fluke s behalf To obtain service during the warranty period send your defective tester to the nearest Fluke Authorized Service Center with a description of the problem THIS WARRANTY IS YOUR ONLY REMEDY NO OTHER WARRANTIES SUCH AS FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSED OR IMPLIED FLUKE IS NOT LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES ARISING FROM ANY CAUSE OR THEORY Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages this limitation of liability may not apply to you Fluke Corporation Fluke Europe B V P O Box 9090 P O Box 1186 Everett WA2. C 148 25 add 0 15 iocle 52 of reading for J K E and N type Holster and Flex Stand Assembly 1272438 and 0 45 of reading for T type Temperature 0 01 of reading 0 03 C per C AA NEDA 15A IEC LR6 batteries 376756 Coefficient 0 05 F per outside t the specie ed P range to 28 C 64 F 80PK 1 K Type Bead Thermocouple 773135 below 100 148 F add 04 of XC for J ki E and CD ROM 1276106 N type and 0 08 of reading for T type Service Manual 1276123 Electromagnetic MED E 2 el v p y p ibili Hz in m field for Compatibility 590 MHz to 1000 MHz in 3 V m field Emmisions Commercial Limits per EN50081 1 Maximum 1 V Maximum volage difference Differential 2 Common Mode Voltage between T1 and T Temperature ITS 90 Scale Applicable NIST 175 _Standards ies nf is Spe Eo for ambient emperar between 18 nd 28 C 82 F for a period of 1 year The above specifications o p include thermocouple error 15 51 amp 52 Series Il Users Manual 16
3. General eee E ne a EI I uU MU E 80 PK 1 Thermocouple supplied with thermometer see e Replacement Parts and Accessories essssssseeeeee mee ii Introduction The Fluke Model 51 and Model 52 Thermometers the thermometer are microprocessor based digital thermometers designed to use external J K T and E type thermocouples temperature probes as temperature sensors Use the thermometer only as specified in this manual Otherwise the protection provided by the meter may be impaired Refer to safety information in Table 1 and meter symbols in Table 2 51 amp 52 Series Il Contacting Fluke To order accessories receive assistance or locate the nearest Fluke distributor or Service Center call 1 888 99 FLUKE 1 888 993 5853 in USA 1 800 36 FLUKE 1 800 363 5853 in Canada 31 402 678 200 in Europe 81 3 3434 0181 in Japan 65 738 5655 in Singapore 1 425 446 5500 from other countries Address correspondence to Fluke Corporation Fluke Europe B V P O Box 9090 P O Box 1186 Everett WA 98206 9090 5602 BD Eindhoven USA The Netherlands Visit us on the World Wide Web at www fluke com To register your product visit www fluke warranty com 51 amp 52 Series Il Users Manual Table 1 Safety Information A Warning A Warning identifies conditions and actions that pose hazards to the user To avoid electrical
4. 5602 B D Eindhoven 98206 9090 The Netherlands To register your product visit www fluke warranty com 10 96 Table of Contents Title Page iniidolo lUe ilo n ORE E G ntacting al c Getting Started eee tenir eri lee tae eumd Rene ceded egies efe ere Using the Thermometer ssssssseeeeneneennn eene nennen nennen nnne Changirig Setup ODpti ris 1 copi ei eM oe elie Entering or Exiting Setup sesssssesesseseseeseeeene rennen neret nennen nnne Set p OPTIONS e A ea aiis Changing a Setup Option sssessssssseseseeeeeeenennenen nennen Measuring Temperatures eeseseseeeeeeeeeeneeeen nnne nnne nnne nennen nnn nnn nenne nennen Connecting a Thermocouple sesesssseeeeeeeeeeeeneeneee nennen nnns Displaying Temperatures Holding the Displayed Readings Viewing the MIN MAX and AVG Readings Using the Offset to Adjust for Probe Errors ssssseeeneneeneenns 51 amp 52 Series Il Users Manual MaintenaNCE cL Replacing the Batteries EHE UE eet iei needs Cleaning the Case and Holster ssssssssseseeeeeeneenene nennen ecillscium ShreueMsnczm Environmental 22 1 Iure inielettle eati tasa sER DeL PADRE anie D DLP E CARD ELA Su LER E RS
5. Press J to indicate that you want to change this setting Press J or v J until the setting you want to use appears on the display Press J to store the new setting in memory Notes Setup is disabled in MIN MAX mode Offset The primary display shows the temperature plus the offset and the secondary display shows the offset Remember to reset the offset to 0 0 when it is no longer needed The offset automatically resets to 0 0 when you change the thermocouple type Model 52 You can store individual offsets for T1 and T2 Sleep mode The thermometer enters sleep mode if no button press occurs for 20 minutes Pressing any button wakes the thermometer and returns it to its previous state Sleep mode becomes enabled each time you turn on the thermometer and is automatically disabled in MIN MAX mode Line frequency For optimum rejection of line noise the thermometer must be set for the local line frequency 51 amp 52 Series Il Measuring Temperatures Measuring Temperatures Connecting a Thermocouple To change the thermocouple type see Changing Setup Options The T a ANSI T al is Type J Color Black Black Yellow Purple TE Blue m 1 Plug a thermocouple into the input connector s Make sure that the polarity is correct 2 Set the thermometer for the correct thermocouple type Displaying Temperatures 1 Press to select the correct temperature scale 2 Ho
6. amp 52 Series Il Users Manual General Weight Dimensions without holster Battery 280 g 10 oz 2 8 cm x 7 8 cm x 16 2 cm 1 1 in x 3 in x 6 4 in 3 AA batteries Certification C e si Safety CSA C22 2 No 1010 1 1992 EN 61010 Amendments 1 2 CAT I OVERVOLTAGE Installation CATEGORY Pollution Degree 2 per IEC1010 1 Refers to the level of Impulse Withstand Voltage protection provided Equipment of OVERVOLTAGE CATEGORY is equipment for connection to circuits in which measures are taken to limit the transient over voltages to an appropriate low level Example include protect electronic circuits 14 80 PK 1 Thermocouple supplied with thermometer Type Type K Chromel Alumel bead style Temperature 40 C to 260 C Range 40 F to 500 F Accuracy 1 1 C 2 0 F Electrical Measurement J type 210 C to 1200 C Range 346 F to 2192 F K type 200 C to 1372 C 328 F to 2501 F T type 250 C to 400 C 418 F to 752 F E type 150 C to 1000 C 238 F to 1832 F Display 0 1 C F K 1000 Resolution 1 0 C F K 2 1000 51 amp 52 Series Il Replacement Parts and Accessories Electrical cont Replacement Parts and Accessories Mere J K T and E type 0 05 of Accuracy T reading 0 3 C 0 A Fh Accessory Part Number VD below 100
7. hanging Setup Options The displayed readings do not change A shift function is in progress Setup is in progress Low battery Replace the batteries Primary Display Model 51 T1 reading Model 52 T1 T2 or T1 T2 reading The temperature unit Secondary Display MAX MIN AVG or offset Model 52 T1or T2 reading The thermocouple type Time Display The elapsed time 51 amp 52 Series Il Getting Started Buttons Shift function Table 5 Buttons Press C 2 CANCEL to stop displaying the minimum maximum and average readings in the secondary display Press to turn the backlight on and off The backlight turns off after 2 minutes without any button presses If the battery is low the backlight is disabled Press to step through the maximum minimum and average readings When viewing logged readings shows the maximum minimum and average of the logged readings Press C 2 CANCEL to turn off this display Press to freeze or unfreeze the displayed readings Press to switch between Celsius C Fahrenheit F and Kelvin K Press when turning on the thermometer to test the display All display elements appear Model 52 Press to toggle showing the T1 T2 and T1 T2 differential temperature measurement in the primary or secondary display 51 amp 52 Series Il Users Manual Table 5 Buttons cont Press to start or exit Set
8. known stable temperature environment such as an ice bath or a dry well calibrator 3 Allow the readings to stabilize 4 n Setup change the offset until the primary display reading matches the calibration temperature See Changing Setup Options 51 amp 52 Series Il Maintenance Maintenance Replacing the Batteries Refer to the safety information in Table 1 before replacing the batteries 1 Turn off the thermometer if necessary 2 Loosen the screw and remove the battery door 3 Replace the three AA batteries 4 Replace the battery door and tighten the screw Cleaning the Case and Holster Use soap and water or a mild commercial cleaner Wipe with a damp sponge or soft rag Calibration To ensure that the thermometer performs to its accuracy specifications Fluke recommends that you calibrate the thermometer annually starting one year after purchase To calibrate the thermometer contact Fluke for the Service Center nearest you or follow the calibration procedure in the service manual listed in Replacement Parts and Accessories Specifications Environmental 10 C to 50 C 14 F to 122 F Operating Temperature 40 C to 60 C 40 F to 140 F Storage Temperature Humidity Non condensing lt 10 C lt 50 F 95 RH 10 C to 30 C 50 F to 86 F 75 RH 30 C to 40 C 86 F to 104 F 45 RH 40 C to 50 C 104 F to 122 F 13 51
9. ld or attach the thermocouple s to the measurement location The temperature reading appears in the primary display 3 Model 52 Press to toggle between showing the T1 T2 and T1 T2 readings in the primary or secondary display Notes The display shows when a thermocouple is not connected The display shows Ot overload when the temperature being measured is outside the thermocouple s valid range Model 52 If only thermocouple T2 is connected the T2 reading appears in the primary display 11 51 amp 52 Series Il Users Manual Holding the Displayed Readings 1 Press to freeze the readings on the display The display shows GEM 2 Model 52 Press to toggle showing the T1 T2 or T1 T2 readings in the primary or secondary display 3 Press again to turn off the HOLD function Viewing the MIN MAX and AVG Readings 1 Press to step through the maximum MAX minimum MIN or the average AVG readings The elapsed time since entering MIN MAX mode or the time at which the minimum or maximum occurred appears on the display 2 Press C 2 CANCEL to exit MIN MAX mode 12 Using the Offset to Adjust for Probe Errors Use the offset option in Setup to adjust the thermometer s readings to compensate for the errors of a specific thermocouple The allowable adjustment range is 5 0 C or K and 9 0 F 1 Plug the thermocouple into the input connector 2 Place the thermocouple in a
10. shock or personal injury follow these guidelines Before using the thermometer inspect the case Do not use the thermometer if it appears damaged Look for cracks or missing plastic Pay particular attention to the insulation around the connectors Disconnect the thermocouple s from the thermometer before opening the case Replace the batteries as soon as the battery indicator appears The possibility of false readings can lead to personal injury Do not use the thermometer if it operates abnormally Protection may be impaired When in doubt have the thermometer serviced Do not operate the thermometer around explosive gas vapor or dust Do not apply more than the rated voltage as marked on the thermometer between the thermocouple s or between any thermocouple and earth ground 51 amp 52 Series Il Introduction Table 1 Safety Information cont ANWarning cont e Model 52 Measurement errors may occur if voltages on the measurement surfaces result in potentials greater than 1 V between the two thermocouples When potential differences are anticipated between the thermocouples use electrically insulated thermocouples e When servicing the thermometer use only specified replacement parts Do not use the thermometer with any part of the case or cover removed Caution A Caution identifies conditions and actions that may damage the meter or the equipment under test Use the proper thermoco
11. up See Changing Setup Options to scroll to the Setup option you want to change to increase the displayed setting v to scroll to the Setup option you want to change v to decrease the displayed setting Press J to enter a Setup option Press J again to store the displayed setting in memory 51 amp 52 Series Il Using the Thermometer Using the Thermometer 1 Plug the thermocouple s into the input connector s 2 Press to turn on the thermometer After 1 second the thermometer displays the first reading If no thermocouple is plugged into the selected input or the thermocouple is open the display shows Changing Setup Options Use Setup to change the thermocouple type offset sleep mode and line frequency settings The thermometer stores the settings in its memory Setup settings reset only when the batteries are removed for more than 2 minutes Entering or Exiting Setup When the thermometer is in Setup mode the display shows Bai e Press to start or exit Setup Setup Options Menu Option Item Settings Thermocouple TYPE J K T or E Type Offset T1 or T2 Model 52 Sleep Mode SLP on sleep mode on or OFF sleep mode off 50 H 50 Hz or 60 H 60 Hz Line Frequency Lin 51 amp 52 Series Il Users Manual Changing a Setup Option 1 10 Press Jor v to scroll to the setup option you want to change
12. uples function and range for your thermometer Do not attempt to recharge the batteries e To prevent explosion do not throw batteries into a fire e Follow local laws or regulations when disposing of batteries Match the and polarities of the battery with the battery case 51 amp 52 Series Il Users Manual Table 2 International Symbols A Refer to the manual for information about this CE Complies with European Union directives feature Battery G Complies with relevant Canadian Standards c us Association directives Getting Started e Figure 1 and Table 3 describe the components Everything in this Users Manual applies both to Models e Figure 2 and Table 4 describe the display 51 and 52 unless otherwise indicated e Table 5 describes the functions of the buttons To become familiar with the thermometer study the following Then read the following sections 51 amp 52 Series Il Getting Started Components Table 3 Components D Thermocouple T1 input Model 52 Thermocouple T2 input Battery door 7 Batteries aas01f eps Figure 1 Components 51 amp 52 Series Il Users Manual Display Elements c OFFSET fag HOLD TI T2 Bat 46 8B D hour min 9 1YPE KJTE MAXMIN AVG Figure 2 Display Elements aas02f eps Table 4 Display Elements The thermocouple measurement includes an offset See C
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