Fluke 51 Series - Manual

1 51 & 52 Series II Introduction The Fluke Model 51 and Model 52 Thermometers (“thethermometer”) are microprocessor-based, digitalthermometers designed to use external J-, K-, T-, and E-type thermocouples (temperature probes) as temperaturesensors. Use the thermometer only as specified in this m...

51 & 52 Series IIUsers Manual 2 Table 1. Safety Information W Warning A Warning identifies conditions and actions that pose hazards to the user. To avoid electrical shock orpersonal injury, follow these guidelines: • Before using the thermometer inspect the case. Do not use the thermometer if it...

51 & 52 Series II Introduction 3 Table 1. Safety Information (cont.) W Warning (cont.) • Model 52: Measurement errors may occur if voltages on the measurement surfaces result in potentialsgreater than 1 V between the two thermocouples. When potential differences are anticipated between thethermo...

51 & 52 Series IIUsers Manual 4 Table 2. International Symbols W Refer to the manual for information about thisfeature. P Complies with European Union directives. M Battery. Complies with relevant Canadian StandardsAssociation directives. Getting Started Everything in this Users Manual applies b...

51 & 52 Series II Getting Started 5 Components xx 3 4 5 1 2 6 7 aas01f.eps Figure 1. Components Table 3. Components A Thermocouple T1 input B Model 52: Thermocouple T2 input C Holster D Display E Buttons F Battery door G Batteries

51 & 52 Series IIUsers Manual 6 Display Elements xx 2 3 4 5 6 7 8 9 10 1 aas02f.eps Figure 2. Display Elements Table 4. Display Elements A The thermocouple measurement includes anoffset. See "Changing Setup Options." B The displayed readings do not change. C A shift function is in progre...

51 & 52 Series II Getting Started 7 Buttons Table 5. Buttons A Press A to turn the thermometer on or off. G (Shift function) Press G , M (CANCEL) to stop displaying the minimum, maximum, and average readings in the secondary display. Q Press Q to turn the backlight on and off. The backlight turn...

51 & 52 Series II Using the Thermometer 9 Using the Thermometer 1. Plug the thermocouple(s) into the input connector(s). 2. Press A to turn on the thermometer. After 1 second the thermometer displays the first reading.If no thermocouple is plugged into the selected input or thethermocouple is &#...

51 & 52 Series IIUsers Manual 10 Changing a Setup Option 1. Press K or N to scroll to the setup option you want to change. 2. Press E to indicate that you want to change this setting. 3. Press K or N until the setting you want to use appears on the display. 4. Press E to store the new setting in...

51 & 52 Series II Measuring Temperatures 11 Measuring Temperatures Connecting a Thermocouple To change the thermocouple type, see “Changing SetupOptions.” The North American ANSI Color Code is: Type J K E T N Color Black Yellow Purple Blue Orange 1. Plug a thermocouple into the input connector(s...

51 & 52 Series IIUsers Manual 12 Holding the Displayed Readings 1. Press h to freeze the readings on the display. The display shows H . 2. Model 52: Press T to toggle showing the T1, T2, or T1-T2 readings in the primary or secondary display. 3. Press h again to turn off the HOLD function. Viewin...

51 & 52 Series II Maintenance 13 Maintenance Replacing the Batteries Refer to the safety information in Table 1 before replacingthe 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...

51 & 52 Series IIUsers Manual 14 General Weight 280 g (10 oz) Dimensions(withoutholster) 2.8 cm × 7.8 cm × 16.2 cm (1.1 in × 3 in × 6.4 in) Battery 3 AA batteries Certification P , ) s Safety CSA C22.2 No. 1010.1 1992EN 61010 Amendments 1, 2 CAT I OVERVOLTAGE (Installation)CATEGORY I, Pollution ...

51 & 52 Series II Replacement Parts and Accessories 15 Electrical (cont.) Measurement Accuracy, T1, T2, or T1-T2 (Model 52) J-, K-, T-, and E-type: ± [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-type;and 0.45 % of reading for ...