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Table of contents for the manual
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® 51 & 52 Series II Thermome ter Users Ma nual English September 1999 © 1999 Fluke C orpor ation, Al l rig hts rese rved. P rinted in USA All produc t nam es are tr adem arks of the ir res pective c ompa nies.[...]
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Limited Warranty & Limit ation of Liability This Fluke p roduct will b e free from defec ts in mater ial and work manship for 3 y ears from the dat e of purchas e. This war- ranty does no t cover fuses , disposable b atteries or d amage from ac cident, neglec t, misuse or ab normal conditi ons of opera- tion or handl ing. Resellers are not aut [...]
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i Table of Contents Title Page Introduction................................................................................................................... .1 Contacting Fluk e ....................................................................................................... 1 Getting Starte d ...............................................[...]
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51 & 52 Seri es II Users M anual ii Maintenance .................................................................................................................. 13 Replacing the B atteries ............................................................................................. 13 Cleaning the Cas e and Holster ...........................[...]
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1 51 & 52 Series II Introduction The Fluke M odel 51 and Mod el 52 Therm ometers (“the thermometer”) ar e microproces sor-based, digi tal thermometers des igned to us e external J -, K-, T-, and E- type thermoc ouples (tempera ture probes ) as temperature sensors . Use the thermom eter only as spec ified in this manual. Otherwise, the prote[...]
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51 & 52 Serie s II Users M anual 2 Table 1. Safet y Information W Warning A Warning identifies c onditions and act ions that pose h azards to the us er. To avoid electrical shock or personal injury, follow these guide lines: • Before usin g the thermometer in spect the case. Do not use t he thermomet er if it appear s damaged. Loo k for crack[...]
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51 & 52 Serie s II Introduction 3 Table 1. Safet y Information (cont.) W Warning (cont.) • Model 52: Measurem ent errors may occur if volt ages on the me asurement sur faces result in pot entials greater than 1 V b etween the two ther mocouples. Whe n potential differen ces are anticipat ed between th e thermocouples, use electrically in sula[...]
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51 & 52 Serie s II Users M anual 4 Table 2. Int ernational Symbols W Refer to the man ual for inform ation about this feature. P Com plies with Europe an Union directives. M Battery. Complies with relevant Canadian Stan dards Assoc iation directiv es. Getting Started Everything in this Users M anual applies both to Mode ls 51 and 52 unl ess oth[...]
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51 & 52 Serie s II Getting Start ed 5 Components 3 4 5 1 2 6 7 aas01f.eps Figure 1. Components Table 3. Component s A Thermocoupl e T1 input B Model 52: Thermoc ouple T2 inp ut C Holster D Displ ay E Buttons F Battery door G Batteries[...]
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51 & 52 Serie s II Users M anual 6 Display Elements 2 3 4 5 6 7 8 9 10 1 aas02f.eps Figure 2. Display Ele ments Table 4. Displ ay Elements A The thermoc ouple measurem ent includes an offset. See "Cha nging Setup O ptions." B The display ed readings do not change. C A shift functi on is in pr ogress. D Setup is in pr ogress. E Low bat[...]
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51 & 52 Serie s II Getting Start ed 7 Buttons Table 5. Buttons A Press A to turn the th ermometer on or off. G (Shift function) Press G , M (CANCEL) to stop d isplaying the m inimum, m aximum, and av erage readings in the secondary display. Q Press Q to turn the b acklight on an d off. The bac klight tur ns off after 2 minutes without any butto[...]
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51 & 52 Serie s II Users M anual 8 Table 5. Buttons (cont .) D Press D to start or ex it Setup. (See "Changing Set up Options .") K Press K to sc roll to the Setup opt ion you want to change. Press K to incr ease the display ed settin g. N Press N to s croll to the Setup option you want to c hange. Press N to dec rease the display ed [...]
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51 & 52 Serie s II Using the Therm ometer 9 Using the Thermometer 1. Plug the thermocouple(s) into the inpu t connector(s ). 2. Press A to turn on the therm ometer. After 1 second the thermometer displays the first readin g. If no thermoc ouple is plugg ed into the s elected input or the thermocoupl e is "open, " the disp lay shows &q[...]
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51 & 52 Serie s II Users M anual 10 Changing a Setup Option 1. Press K or N to scroll to the s etup optio n you want to change. 2. Press E to indicate tha t you want to c hange this setting. 3. Press K or N until the settin g you want to use appears on th e display. 4. Press E to store the new setting in m emory. Notes Setup is dis abled in MIN[...]
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51 & 52 Serie s II Measuring T emperatures 11 Measuring Temper atures Connecting a Thermocouple To change the thermocouple ty pe, see “Ch anging Setup Options.” The North American ANSI Color Cod e is: Type JK E T N Color Black Yellow Purple Blue Orange 1. Plug a thermocouple into the inpu t connector(s ). (Make s ure that the polar ity is c[...]
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51 & 52 Serie s II Users M anual 12 Holding the Displayed Read ings 1. Press h to freeze the readings on the disp lay. The displ ay sho ws H . 2. Model 52: Press T to toggle show ing the T1, T2 , or T1-T2 readings in the prim ary or secondary display. 3. Press h again to turn off the HOLD f unction. Viewing the MIN, MAX, and AVG Readings 1. Pre[...]
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51 & 52 Serie s II Maintenanc e 13 Maintenance Replacing the Bat teries Refer to the safe ty informat ion in Tabl e 1 before rep lacing the batteries . 1. Turn off the thermometer if necess ary. 2. Loosen t he screw and r emove the battery door. 3. Replac e the three AA b atteries. 4. Replac e the battery do or and tighte n the screw . Cleaning[...]
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51 & 52 Serie s II Users M anual 14 Genera l Weight 280 g (10 oz) Dimensions (without holster) 2.8 cm × 7.8 c m × 16.2 cm (1.1 in × 3 i n × 6.4 in) Battery 3 AA batteries Certification P , ) (TÜV p ending) Safety CSA C22.2 No. 101 0.1 1992 EN 61010 Amendm ents 1, 2 CAT I OVERVOLTAGE (Installation) CATEGOR Y I, Pollution Degree 2 per IEC101[...]
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51 & 52 Serie s II Replacement Parts and Ac cessories 15 Electrical (cont.) Measurement Accuracy, T1, T2, or T1-T2 (Model 52) J-, K-, T-, and E-ty pe: ± [ 0.05 % of reading + 0.3 o C (0.5 o F)] [below − 100 o C ( − 148 o F): add 0.15 % of reading for J-, K-, E-, and N-ty pe; and 0.45 % of reading for T-type] Temperature Coefficient 0.01 % [...]
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51 & 52 Serie s II Users M anual 16[...]