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 isthree years and begins on the date of shipment. Parts, product repairs and services are warranted for 90 days. This w...
Page 3 - Table of Contents; Title
i Table of Contents Title Page Introduction .................................................................................................................... 1Contacting Fluke ............................................................................................................ 1Standard Eq...
Page 4 - Users Manual; ii
724 Users Manual ii Using Resistance-Temperature Detectors (RTDs) ............................................... 23 Using Source Mode ........................................................................................................ 26 Sourcing Electrical Parameters .............................
Page 6 - iv
Page 7 - List of Tables; Table
v List of Tables Table Title Page 1. Summary of Source and Measure Functions ........................................................................ 2 2. International Symbols ........................................................................................................... 7 3. Input/Outp...
Page 9 - vii; List of Figures; Figure Title
vii List of Figures Figure Title Page 1. Standard Equipment ............................................................................................................. 6 2. Input/Output Terminals and Connectors ............................................................................... 8 3. Ke...
Page 10 - viii
Page 11 - Temperature Calibrator; Introduction; Storage and recall of 8 setups.; Contacting Fluke; Or, visit Fluke’s Web site at
1 Temperature Calibrator Introduction Your Fluke 724 Temperature Calibrator is a handheld,battery-operated instrument that measures and sources avariety of thermocouples and RTDs. See Table 1. In addition to the functions in Table 1, the calibrator hasthe following features and functions: • A split-...
Page 12 - dc V
724Users Manual 2 Table 1. Summary of Source and Measure Functions Function Measure Source dc V 0 V to30 V 0 V to10 V Resistance 0 Ω to 3200 Ω 15 Ω to 3200 Ω Thermocouple Types E, J, K, T, B, R, S, L, U, N, mV RTD(Resistance-TemperatureDetector) Pt100 Ω (385) Pt100 Ω (3926) Pt100 Ω (3916) Pt200 Ω (3...
Page 13 - Standard Equipment; Stackable alligator clip test leads (one set); Safety Information
Temperature Calibrator Standard Equipment 3 Standard Equipment The items listed below and shown in Figure 1 are includedwith your calibrator. If the calibrator is damaged orsomething is missing, contact the place of purchaseimmediately. To order replacement parts or spares, seethe user-replaceable p...
Page 14 - Warning; To avoid possible electric shock or personal injury:
724Users Manual 4 W Warning To avoid possible electric shock or personal injury: • Do not apply more than the rated voltage, as marked on the calibrator, between the terminals, or between any terminal and earth ground. Maximum for all terminals is 30 V, 24 mA. • Before each use, verify the calibrato...
Page 15 - batteries as soon as the battery indicator (; Caution; To avoid possible damage to calibrator or to equipment under test:
Temperature Calibrator Safety Information 5 W Warning • Use only 4 AA batteries, properly installed in the calibrator case, to power the calibrator. • Disconnect test leads before changing to another measure or source function. • When servicing the calibrator, use only specified replacement parts. •...
Page 16 - Figure 1. Standard Equipment
724Users Manual 6 100% 25% 25% RECALL STORE SETUP 0% StackableTest Leads TL75 Test Lead Set Alligator Clips V mA MEASURE SOURCE / MEASURE 30V MAX ALL TERMINALS 4W 3W V RTD mA- TC COM COM LOOP zi01f.eps Figure 1. Standard Equipment
Page 17 - Table 2. International Symbols
Temperature Calibrator Safety Information 7 Table 2. International Symbols AC - Alternating current Double insulated DC - Direct current Battery Earth ground Refer to the manual for information aboutthis feature. Pressure O ON/OFF Conforms to Canadian StandardsAssociation directives Conforms to Euro...
Page 18 - Getting Acquainted with the Calibrator; Input and Output Terminals; Figure 2. Input/Output Terminals and Connectors
724Users Manual 8 Getting Acquainted with the Calibrator Input and Output Terminals Figure 2 shows the calibrator input and output terminals.Table 3 explains their use. TC RTD 100% 25% 25% RECALL MEAS SOURCE STORE SETUP 0% TEMPERATURE CALIBRATOR 724 7 6 5 4 3 2 1 V LOOP mA V ˚ F ˚ C zi02f.eps Figure...
Page 19 - Table 3. Input/Output Terminals and Connectors; terminals
Temperature Calibrator Getting Acquainted with the Calibrator 9 Table 3. Input/Output Terminals and Connectors No Name Description A , B MEASURE V, mAterminals Input terminals for measuring voltage, current, and supplying loop power. C TC input/output Terminal for measuring or simulating thermocoupl...
Page 20 - Keys
724Users Manual 10 Keys Figure 3 shows the calibrator keys and Table 4 explainstheir use. TC RTD 100% 25% 25% RECALL MEAS SOURCE STORE SETUP 0% TEMPERATURE CALIBRATOR 724 TC RTD 100% 25% 25% RECALL MEAS SOURCE STORE SETUP 0% TEMPERATURE CALIBRATOR 724 1 8 9 10 2 3 4 6 7 5 12 11 13 14 15 16 17 18 19 ...
Page 21 - Table 4. Key Functions; Turns the power on or off.
Temperature Calibrator Getting Acquainted with the Calibrator 11 Table 4. Key Functions No Name Description A O Turns the power on or off. B V Selects voltage measurement function in the upper display. C A Selects the mA measurement function in the upper display. D K Activates a 24-volt loop supply ...
Page 22 - XW
724Users Manual 12 Table 4. Key Functions (cont.) No Name Description L L Cycles through : E Slow repeating 0 % - 100 % - 0 % ramp P Fast repeating 0 % - 100 % - 0 % ramp N Repeating 0 % - 100 % - 0 % ramp in 25 % steps AMAM OYOZ Disables Shut Down Mode Enables Shut Down Mode M XW Y Z Increases or d...
Page 23 - Display
Temperature Calibrator Getting Acquainted with the Calibrator 13 Display Figure 4 shows the elements of a typical display. Low Battery Symbol Loop Annunciator Memory Locations for Calibrator Setups UnitsDisplay AutoRamp Mode Indicator sh07f.eps Figure 4. Elements of a Typical Display
Page 26 - Contrast Adjustment; Note; Figure 6. Adjusting the Contrast
724Users Manual 16 Contrast Adjustment Note Available with V2.1 Firmware or greater. Toidentify firmware version, press and hold J when powering up. The firmware version will beshown in the upper units display for about 1second after initialization. To adjust the contrast, proceed as follows: 1. Pre...
Page 27 - Using Measure Mode; Measuring Electrical Parameters (Upper Display); to select current. LOOP should not be on.; Current Measurement with Loop Power; Connect the calibrator to the transmitter current loop; Figure 7. Measuring Voltage and Current Output
Temperature Calibrator Using Measure Mode 17 Using Measure Mode Measuring Electrical Parameters (Upper Display) To measure the current or voltage output of a transmitter,use the upper display and proceed as follows: 1. Press A to select current. LOOP should not be on. 2. Connect the leads as shown i...
Page 28 - Figure 8. Connections for Supplying Loop Power
724Users Manual 18 Red TEST DC PWR + – + – – + Black TC RTD 100% 25% 25% RECALL MEAS SOURCE STORE SETUP 0% TEMPERATURE CALIBRATOR 724 V LOOP mA V ˚ F ˚ C zi06f.eps Figure 8. Connections for Supplying Loop Power
Page 29 - Measuring Electrical Parameters (Lower Display); Connect the calibrator as shown in Figure 9.; Figure 9. Measuring Electrical Parameters
Temperature Calibrator Using Measure Mode 19 Measuring Electrical Parameters (Lower Display) To measure the electrical parameters using the lowerdisplay, proceed as follows: 1. Connect the calibrator as shown in Figure 9. 2. If necessary, press M for MEASURE mode (lower display) 3. Press l for dc vo...
Page 30 - Attach the thermocouple leads to the appropriate TC
724Users Manual 20 Measuring Temperature Using Thermocouples The calibrator supports ten standard thermocouples,including types E, N, J, K, T, B, R, S, L, or U. Table 5summarizes the ranges and characteristics of thesupported thermocouples. To measure temperature using a thermocouple, proceedas foll...
Page 32 - Figure 10. Measuring Temperature with a Thermocouple
724Users Manual 22 V mA MEASURE SOURCE / MEASURE 30V MAX ALL TERMINALS 4W 3W V RTD TC COM COM LOOP Process Temperature Warning 30 V maximum to TC TC Miniplug zi14f.eps Figure 10. Measuring Temperature with a Thermocouple
Page 36 - Using Source Mode; Sourcing Electrical Parameters; Figure 12. Electrical Sourcing Connections
724Users Manual 26 Using Source Mode In SOURCE mode, the calibrator generates calibratedsignals for testing and calibrating process instruments,supplies voltages and resistances, and simulates theelectrical output of RTD and thermocouple temperaturesensors. Sourcing Electrical Parameters Volts or oh...
Page 37 - Simulating Thermocouples; Simulating RTDs
Temperature Calibrator Using Source Mode 27 Simulating Thermocouples Connect the calibrator TC input/output to the instrumentunder test with thermocouple wire and the appropriatethermocouple mini-connector (polarized thermocoupleplug with flat, in-line blades spaced 7.9 mm [0.312 in]center to center...
Page 38 - Figure 13. Connections for Simulating a Thermocouple
724Users Manual 28 TEST DC PWR + + – – + Color depends on type of TC TC RTD 100% 25% 25% RECALL MEAS SOURCE STORE SETUP 0% TEMPERATURE CALIBRATOR 724 TC TC Miniplug V LOOP mA V ˚ F ˚ C zi10f.eps Figure 13. Connections for Simulating a Thermocouple
Page 39 - Figure 14. Connections for Simulating 3-Wire RTD
Temperature Calibrator Using Source Mode 29 TC RTD 100% 25% 25% RECALL MEAS SOURCE STORE SETUP 0% TEMPERATURE CALIBRATOR 724 BLACK SENSOR TERMINALS BLACK RED 1 2 3 4 V V ˚ F ˚ C LOOP mA zi11f.eps Figure 14. Connections for Simulating 3-Wire RTD
Page 40 - Stepping and Ramping the Output; Manually Stepping the Output
724Users Manual 30 Setting 0 % and 100 % OutputParameters For output parameters (volts, ohms, TC potentials or RTDresistances), you must set the 0 % and 100 % pointsbefore you can use the step and ramp functions. Proceedas follows: 1. If necessary, press M for SOURCE mode. 2. Select the TC source fu...
Page 41 - Auto Ramping the Output; Storing and Recalling Setups
Temperature Calibrator Storing and Recalling Setups 31 Auto Ramping the Output Auto ramping gives you the ability to continuously apply avarying stimulus from the calibrator to a transmitter, whileyour hands remain free to test the response of thetransmitter. When you press L , the calibrator produc...
Page 42 - Calibrating a Transmitter
724Users Manual 32 Calibrating a Transmitter Use the measurement (upper display) and source (lowerdisplay) modes to calibrate a transmitter. The followingexample shows how to calibrate a temperaturetransmitter. Connect the calibrator to the instrument under test asshown in Figure 15. Proceed as foll...
Page 43 - Figure 15. Calibrating a Thermocouple Transmitter
Temperature Calibrator Calibrating a Transmitter 33 Red TEST DC PWR + – + – – + Black TC RTD 100% 25% 25% RECALL MEAS SOURCE STORE SETUP 0% TEMPERATURE CALIBRATOR 724 V LOOP mA V ˚ F ˚ C zi12f.eps Figure 15. Calibrating a Thermocouple Transmitter
Page 44 - Testing an Output Device; Connect the test leads to the instrument under test; Figure 16. Calibrating a Chart Recorder
724Users Manual 34 Testing an Output Device Use the source functions to test and calibrate actuators,recording, and indicating devices. Proceed as follows: 1. Connect the test leads to the instrument under test as shown in Figure 16. 2. Press l for dc voltage, or U for resistance (lower display). 3....
Page 45 - Replacing the Batteries; Figure 17 shows you how to replace the batteries.; Replacing the Fuse; Replace the battery door and secure it by turning the
Temperature Calibrator Replacing the Batteries 35 Replacing the Batteries W Warning To avoid false readings, which could lead topossible electric shock or personal injury,replace the batteries as soon as the batteryindicator ( M ) appears. Figure 17 shows you how to replace the batteries. Replacing ...
Page 46 - Figure 17. Replacing the Batteries; Maintenance; Cleaning the Calibrator
724Users Manual 36 Battery and Compartment FuseCompartment sh38f.eps Figure 17. Replacing the Batteries Maintenance Cleaning the Calibrator W Warning To avoid personal injury or damage to thecalibrator, use only the specifiedreplacement parts and do not allow waterinto the case. Caution To avoid dam...
Page 47 - Replacement Parts
Temperature Calibrator Maintenance 37 postage paid and insured, to the nearest Service Center.Fluke assumes no responsibility for damage in transit. The Fluke 724 Temperature Calibrator covered by thewarranty will be promptly repaired or replaced (at Fluke’soption) and returned to you at no charge. ...
Page 48 - Figure 18. Replacement Parts
724Users Manual 38 1 8 6 6 21 9 19 10 12 13 2 18 20 17 3 4 5 3 7 16 11 14 15 22 23 zi46f.eps Figure 18. Replacement Parts
Page 49 - Specifications; C unless stated otherwise.; DC Voltage Measurement
Temperature Calibrator Specifications 39 Specifications Specifications are based on a one year calibration cycleand apply from +18 ° C to +28 ° C unless stated otherwise. All specifications assume a 5 minute warmup period. DC Voltage Measurement Range Resolution Accuracy, (% of Reading + Counts) 30 ...
Page 51 - Millivolt Measurement and Source*; *Select this function by pressing; Temperature, Thermocouples
Temperature Calibrator Specifications 41 Millivolt Measurement and Source* Range Resolution Accuracy -10 mV to 75 mV 0.01 mV ± (0.025 % + 1 count) Maximum input voltage: 30 V Temperature coefficient -10 ° C to 18 ° C, +28 ° C to 55 ° C: ± 0.005 % of range per ° C *Select this function by pressing T ...
Page 53 - Loop Power Supply
Temperature Calibrator Specifications 43 Loop Power Supply Voltage: 24 VMaximum current: 22 mAShort circuit protected General Specifications Operating temperature -10 ° C to 55 ° C Storage temperature - 20 ° C to 71 ° C Operating altitude 3000 meters above mean sea level Relative Humidity (% RH oper...
Page 55 - Index; Auto ramping output, 31
45 Index —0— 0% output parameter, setting, 30 —1— 100% output parameter, setting, 30 —A— Auto ramping output, 31 —B— Batteries, replacing, 35 —C— Calibration, 36Cleaning calibrator, 36 —D— Display, 13 —E— Electrical parameters measurement, 19sourcing, 26 —G— Getting started, 14 —I— Input terminals, ...
