Page 2 - LIMITED WARRANTY & LIMITATION OF LIABILITY
LIMITED WARRANTY & LIMITATION OF LIABILITY Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is three years and begins on the date of shipment. Parts, product repairs and services are warranted for 90 days. This ...
Page 3 - Table of Contents; Title
i Table of Contents Title Page Introduction ....................................................................................................... 1Service Centers .................................................................................................. 2International Symbols ................
Page 5 - List of Tables; Table
iii List of Tables Table Title Page 1. International Electrical Symbols Used in this Manual........................................... 2 2. Recommended Test Equipment ............................................................................. 5 3. Performance Test Values (K-Type Thermocouple) .......
Page 7 - List of Figures; Figure
v List of Figures Figure Title Page 1. Display Segments .................................................................................................. 6 2. Ice Bath Test Equipment Connections ................................................................... 7 3. Calibration Connections ..........
Page 9 - Warning; Caution; Introduction
1 51, 52, 53, 54 Series II Service Manual W Warning To avoid shock or injury, do not perform the performance testsor calibration procedures described in this manual unless youare qualified to do so. Refer to the Safety Information section of this manual beforeusing the Fluke 51, 52, 53, 54 Series II...
Page 10 - Service Centers; Precautions and Safety Information; statement identifies conditions and actions that pose a hazard; statement identifies conditions and actions that may damage the
51, 52, 53, 54 Series II Service Manual 2 Service Centers To contact Fluke, order parts, or locate a Fluke service center, call one of the followingtelephone numbers: USA: 1-888-99-FLUKE (1-888-993-5853)Canada: 1-800-36-FLUKE (1-800-363-5853)Europe: +31 402-678-200Japan: +81-3-3434-0181Singapore: +6...
Page 11 - Thermometer; Safety Information
Thermometer Precautions and Safety Information 3 Safety Information W Warning To avoid electrical shock or personal injury, follow these guidelines: • Before using the thermometer, inspect the case. Do not use thethermometer if it appears damaged. Look for cracks or missing plastic.Pay particular at...
Page 12 - Specifications; General Specifications
51, 52, 53, 54 Series II Service Manual 4 Specifications General Specifications 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 3 AA batteries Certification P , ) (TÜV pending) Safety CSA C22.2 No. 1010.1 1992EN 61010 Amendments 1, 2 CAT I ...
Page 13 - Performance Test and Calibration Required Test Equipment; Performance Tests; Display Test
Thermometer Performance Test and Calibration Required Test Equipment 5 Performance Test and Calibration Required Test Equipment Refer to Table 2 for a list of test equipment used in the performance test and calibrationprocedures. Table 2. Recommended Test Equipment Equipment Required Characteristics...
Page 14 - Keypad Test; Ice Bath Construction
51, 52, 53, 54 Series II Service Manual 6 52 51 54 53 zb03f.eps Figure 1. Display Segments Keypad Test Check that all keypad switches are functional by pressing each key and confirming theproper response on the display. Wide Range Performance Test Procedure This test verifies the instrument specific...
Page 15 - Ice Bath Test
Thermometer Performance Tests 7 4. Replace the Dewar Flask cap or cork, and insert the thermocouple wires and Mercurythermometer as shown in Figure 2. Insert the Mercury thermometer to the same depthas the thermocouple wire. 5700ACalibrator Ice bath K-Type Thermocouple wire Copper wire 51, 52, 53, o...
Page 16 - Verification of IR Communications Port (Fluke 53 and 54)
51, 52, 53, 54 Series II Service Manual 8 Table 3. Performance Test Values (K-Type Thermocouple) Input Voltage Equivalent Display Reading limits Step (mV DC) Temperature ° C ° F 1 0.0000 0.0 ° C 32.0 ° F -0.3 to 0.3 31.5 to 32.5 2 0.9193 23.0 ° C 73.4 ° F 22.7 to 23.3 72.9 to 73.9 3 -5.7297 -190.0 °...
Page 17 - Calibration and Offset Adjustment; Calibration consists of two parts:
Thermometer Calibration and Offset Adjustment 9 Calibration and Offset Adjustment Calibration consists of two parts: 1. Calibration of the A/D converter, using the set up shown in Figure 3. 2. Reference junction calibration, using the ice bath test set up shown in Figure 2. A/D Calibration To calibr...
Page 19 - Reference Junction Calibration; Note; Using the Offset to Adjust for Variation Between Thermocouples
Thermometer Calibration and Offset Adjustment 11 11. To ignore the calibration changes, use K or N , and select “ CAL Abrt ” and press E. 12. Proceed to Reference Junction Calibration. Reference Junction Calibration Note This procedure is described using an ice bath and a K-type thermocouple.It can ...
Page 20 - Basic Maintenance; Clean the thermometer case with a mild detergent and water.; Turn the thermometer off.
51, 52, 53, 54 Series II Service Manual 12 Basic Maintenance Basic maintenance required by the thermometer is discussed in this section. Cleaning the Thermometer Caution • To avoid damaging the thermometer, do not use aromatic hydrocarbons or chlorinated solvents for cleaning. Thesesolutions react w...
Page 21 - Disassembly and Reassembly; Disassembly; To disassemble the thermometer, follow these steps:
Thermometer Disassembly and Reassembly 13 zb01f.eps Figure 5. Battery Access Disassembly and Reassembly Disassembly and reassembly of the thermometer may be necessary to replace interiorparts. Refer to Figure 6 when disassembling and reassembling the thermometer. Disassembly To disassemble the therm...
Page 22 - The LCD decal is now exposed and may be removed.; Reassembly
51, 52, 53, 54 Series II Service Manual 14 6. The LCD decal is now exposed and may be removed. 7. To remove the main switch pad, first remove the small elastomeric connector at thetop of the switch pad, and then lift out the entire switch pad. Reassembly The reassembly procedure is basically the rev...
Page 23 - Reinstalling the Main PCA; Replaceable Parts
Thermometer Replaceable Parts 15 5. Push the Isothermal PCA and the Main PCA together so that the Isothermal PCApins go deeper into the Main PCA sockets. This holds the IR Lens in place andallows the Main PCA to be reinstalled into the top case. Reinstalling the Main PCA 1. While holding the IR Lens...
Page 27 - Index
1 Index —A— assembly, 13 —B— batteries access to, 13changing, 12 —C— calibration, 9 A/D, 9A/D connections, 9button access, 10CAL Abrt, 10CAL A-d, 10CAL donE, 10CAL rEF, 10offset, 9reference junction, 11variations between thermocouples, 11 caution, 12, 13CD ROM, 1 —D— disassembly, 13display segments,...
