53IIB/54IIB Thermometer Users Manual January 2011 © 2011 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for three years from the date of purchase. This warranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on Fluke’s behalf.
Table of Contents Title Page Safety Information .......................................................................................................... Contacting Fluke........................................................................................................ Getting Started ............................................................................................................... Components ..............................................................................................
53IIB/54IIB Users Manual Measuring Temperatures............................................................................................... Connecting a Thermocouple ..................................................................................... Displaying Temperatures .......................................................................................... Holding the Displayed Temperatures........................................................................
3IIB/54IIB Safety Information Contacting Fluke The Fluke 53IIB and 54IIB Thermometers (“the thermometer”) are microprocessor-based, digital thermometers designed to use external J-, K-, T-, E-, R-, S-, and N-type thermocouples (temperature probes) as temperature sensors. To order accessories, receive assistance, or locate the nearest Fluke distributor or Service Center, call: Use the thermometer only as specified in this manual. Otherwise, the protection provided by the meter may be impaired.
53IIB/54IIB Users Manual Table 1. Safety Information W Warning A Warning identifies conditions and actions that pose hazards to the user. To avoid electrical 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.
53IIB/54IIB Safety Information Table 1. Safety Information (cont.) W Warning (cont.) • Model 54: 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. • When servicing the thermometer, use only specified replacement parts. • Do not use the thermometer with any part of the case or cover removed.
53IIB/54IIB Users Manual Table 2. International Symbols W Refer to the manual for information about this feature. M Battery. P Complies with European Union directives. ) Complies with relevant Canadian Standards Association directives. Getting Started • Figure 1 and Table 3 describe the components. Everything in this Users Manual applies both to Models 53 and 54 unless otherwise indicated. • Figure 2 and Table 4 describe the display. • Table 5 describes the functions of the buttons.
53IIB/54IIB Getting Started Table 3. Components Components 3 2 5 1 4 Thermocouple T1 input Model 54: Thermocouple T2 input Holster Display Buttons Battery door Batteries 6 7 aat01f.eps Figure 1.
53IIB/54IIB Users Manual Table 4. Display Elements Display Elements 2 3 4 5 7 1 8 9 12 10 11 The thermocouple measurement includes an offset. See "Changing Setup Options." The displayed readings do not change. A shift function is in progress. Readings are being logged. Setup is in progress. Logged readings are displayed. Low battery. Replace the batteries. Primary Display. Model 53: T1 reading. Model 54 T1, T2, or T1-T2 reading. The temperature units.
53IIB/54IIB Getting Started Buttons Table 5. Buttons Press to turn the thermometer on or off. Press , (CANCEL) to stop displaying the minimum, maximum, and average readings in the secondary display. (Shift function) Press , (CLEAR MEMORY) to delete logged readings from memory. Press , (PC/IR SEND) to toggle the IR port on and off. Press to turn the backlight on and off. The backlight turns off after 2 minutes without any button presses.
53IIB/54IIB Users Manual Table 5. Buttons (cont.) Press to freeze or unfreeze the displayed readings. Press when turning on the thermometer to test the display. All display elements appear. Model 54: Press to toggle showing the T1, T2, and T1-T2 (differential temperature measurement) in the primary or secondary display. Press to start or exit Setup. (See "Changing Setup Options.") Press to scroll to the Setup option you want to change. Press to increase the displayed setting.
53IIB/54IIB 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 Entering and Exiting Setup When the thermometer is in Setup mode, the display shows . • Press to start or exit Setup.
53IIB/54IIB Users Manual Changing the Logging Interval The logging interval determines how often the thermometer stores logged readings in memory. You choose the length of the logging interval. See "Using Memory." The thermometer stores logged readings at the end of each logging interval. You can select a logging interval of 1 second (1), 10 seconds (2), 1 minute (3), 10 minutes (4), or user-defined (). You can also set the logging interval manually (0).
53IIB/54IIB Changing Setup Options Changing the Thermocouple Type Changing the Offset 1. Press or until the display shows TYPE. 2. Press to display the thermocouple type choices. You can adjust the thermometer's readings to compensate for the errors of a specific thermocouple. See "Using the Offset to Adjust for Probe Errors." The allowable adjustment range is ±5.0 oC or K, and ±9.0 oF. The currently selected thermocouple blinks. 3. 4.
53IIB/54IIB Users Manual Enabling or Disabling Sleep Mode Setting the Time The thermometer enters sleep mode if no button press occurs for 20 minutes. 1. Press or until the display shows the time if it is set or shows "- - : - -." Pressing any button wakes the thermometer and returns it to its previous state. 2. Press to indicate you want to set the time. 1. Press or until the display shows . 2. Press to indicate that you want to change the sleep setting.
53IIB/54IIB Measuring Temperatures Changing the Line Frequency Measuring Temperatures For optimum rejection of line noise, set the thermometer for the local line frequency as follows: Connecting a Thermocouple 1. Press or until the display shows . 2. Press to indicate that you want to change the line setting. 3. Press or as needed until the display shows or (50 Hz or 60 Hz). 4. Press to store the line setting in memory.
53IIB/54IIB Users Manual Displaying Temperatures Holding the Displayed Temperatures 1. Press to select the correct temperature scale. 1. 2. Hold or attach the thermocouple(s) to the measurement location. The temperature reading appears in the selected display. 3. Model 54: Press to toggle between showing the T1, T2, and T1-T2 reading in the primary or secondary display. The display shows . 2.
53IIB/54IIB Using Memory Using the Offset to Adjust for Probe Errors Using Memory Use the offset option in Setup to adjust the thermometer's readings to compensate for the errors of a specific thermocouple. During a logging session the thermometer stores logged readings in its memory. 1. Plug the thermocouple into the input connector. At the end of the logging session you can view the logged readings on the display. 2.
53IIB/54IIB Users Manual Initial Conditions and Data Entries Starting and Stopping Logging Logged readings include initial conditions and data entries. Setup, memory clear, and PC communications are inaccessible during logging. The initial conditions are the thermocouple type and the offsets for each thermocouple input. You can only view initial conditions using FlukeView Forms. The data entries are a time stamp, the T1 reading, and the T2 and T1-T2 readings (Model 54).
53IIB/54IIB Using Memory Clearing Memory Viewing Logged Readings When memory is full, appears on the display and logging stops. You can clear memory in normal or MIN MAX mode. 1. • 2. Press , (CLEAR MEMORY) to delete logged readings from memory. The display shows the following for 2 seconds. MEMORY Press to view logged readings. The display shows . Press or to scroll through the logged readings. The display shows each logged reading, its time stamp, and its memory location.
53IIB/54IIB Users Manual 3. Press to step through the minimum, maximum, average, and current logged reading. For example, Figure 4 shows the maximum reading in memory. The maximum reading occurred at 1:49 P.M. and was stored in memory location 5. Communicating with a PC You can transfer the contents of the thermometer’s memory to a PC using FlukeView Forms. The communication requires an IR (infrared) serial connection. Refer to the FlukeView Forms Installation Guide and FlukeView Help.
53IIB/54IIB Maintenance Maintenance Calibration Replacing the Batteries To ensure that the thermometer performs to its accuracy specifications, Fluke recommends that you calibrate the thermometer annually, starting one year after purchase. 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.
53IIB/54IIB Users Manual General Weight 280 g (10 oz) Dimensions (without holster) 2.8 cm × 7.8 cm × 16.2 cm (1.1 in × 3 in × 6.4 in) Battery Certification P, Safety CAN/CSA C22.2 No. 61010-1-04, ANSI/UL 80 PK-1 Thermocouple (supplied with thermometer) Type Type K, Chromel Alumel, bead style Temperature Range -40 C to +260 C (-40 F to +500 F) 3 AA batteries Accuracy ±1.1 C (±2.
53IIB/54IIB Replacement Parts and Accessories Electrical (cont.) Measurement Accuracy, T1, T2, or T1-T2 (Model 54) Temperature Coefficient Electromagnetic Compatibility J-, K-, T-, E-, and N-type: ±[0.05 % of o o o reading + 0.3 C (0.5 F)] [below -100 C o (-148 F): add 0.15 % of reading for J-, K-, E-, and N-type; and 0.45 % of reading for T-type] R- and S-type: ±[0.05 % of o o reading +0.4 C (0.7 F)] o o Susceptibility: ±2 C (±3.6 F) for 80 MHz to 200 MHz in 1.
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