Users Manual
Contents
1. TC Miniplug Figure 13 Connections for Simulating a Thermocouple 28 zi10f eps Temperature Calibrator Using Source Mode SENSOR TERMINALS VY FLUKE 724 TEMPERATURE Cup gp 000 J000 2 zi11f eps Figure 14 Connections for Simulating 3 Wire RTD 29 724 Users Manual Setting 0 and 100 Output Parameters For output parameters volts ohms TC potentials or RTD resistances you must set the 0 and 100 points before you can use the step and ramp functions Proceed as follows 1 If necessary press for SOURCE mode 2 Select the TC source function and use the arrow keys to enter the value Our example is thermocouple source using 100 C and 300 C values for source 3 Enter 100 C and press and hold to store the value 4 Enter in 300 C and press and hold m to store the value You can now use this setting for the following e Manually stepping an output with 25 increments e Jump between the 0 and 100 span points by momentarily pushing or 100 J 30 Stepping and Ramping the Output Two features are available for adjusting the value of source functions e Stepping the output manually with the 425 and 25 keys or in automatic mode e Ramping the output Stepping and ramping apply to all functions Manually Stepping the Output To manually step the output you can do the following e Use 4282. U U 5 Thermocouple Types Accepted ccccseceeesseeceeeseeceeeeseeeeseseaeeeeescecesssceeeesseeseneseneeesennees 6 RID Types ACCEpled E 7 Replacement Parts reoi ihe Dd nA de Rd esf tih ee 724 Users Manual vi List of Figures Figure Title 1 Standard Equipment AE 2 Input Output Terminals and Connechors sese nennen 3 Cy HH 4 Elements of a Typical Display 5 Voltage to Voltage TeSt EE 6 Adjusting the COMPAS E 7 Measuring Voltage and Current Output 8 Connections for Supplying Loop Power 9 Measuring Electrical Parameters AAA 10 Measuring Temperature with a Thermocouple nennen 11 Measuring Temperature with an RTD Measuring 2 3 and 4 Wire Resistance 12 Electrical Sourcing Connections nennen nennen 13 Connections for Simulating a Thermocouple eee 14 Connection for Simulating a 3 Wire HID nennen nennen 15 Calibrating a Thermocouple Transmitter 16 Calibrating a Chart Recorder nennen nnne nnne nennen 17 Replacing the Batteries seeeeseeesseeeseseseeeeeneee nennen ennt nnne nennt rentre nnne nenne 18 Replacement Parts eret tarte rne Re tee Ren FCR ERR REUS anne d e vii 724 Users Manual viii Introduction Your Fluke 724 Temperature Calibrator is a handheld battery operated instrument that measures and sources a variety of thermocouples and RTDs See Table 1 In addition t
3. C 0 005 of range per C 2 wire Does not include lead resistance 3 wire Assumes matched leads with a total resistance not exceeding 100 Q Excitation Current from Accuracy Ohms Range Measurement Device tO 15 to 400 Q 0 15 to 0 5 mA 0 15 15 to 400 Q 0 5 to 2 mA 0 1 400 to 1 5 KQ 0 05 to 0 8 mA 0 5 1 5 to 3 2 KQ 0 05 to 0 4 mA 1 Resolution 15 to 400 Q 0 10 400 to 3 2 kQ 10 Temperature coefficient 10 C to 18 C 28 C to 55 C 0 005 of resistance range per C 40 Millivolt Measurement and Source Temperature Calibrator Range Resolution Accuracy 0 01 mV 10 mV to 75 mV 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 e The signal is available at the thermocouple miniplug connector 0 025 96 1 count Temperature Thermocouples Measure and Source Type Range Accuracies ITS 90 J 200 to 0 C 1 0 C 0 to 1200 C 0 7 C K 200 to 0 C 1 2 C Oto 1370 C 0 8 C T 200 to 0 C 1 2 C 0to400 C 0 8 C E 200 to 0 C 0 9 C 0 to 950 C 0 7 C Specifications R 20 to 0 C 2 5 C 0 to 500 C 1 8 C 500 to 1750 C 1 4 C S 20 to 0 C 2 5 C 0 to 500 C 1 8 C 500 to 1750 C 1 5 C B 600 to 800 C 2 2 C 800 to 1000 C 1 8 C 1000 to 1800 C 1 4
4. C L 200 to 0 C 0 85 C 0 to 900 C 0 7 C U 200 to 0 C 1 1 C 0 to 400 C 0 75 C N 200 to 0 C 1 5 C 0 to 1300 C 0 9 C Resolution J K T E L N U 0 1 C 0 1 F B R S 1 C 1 F 41 724 Users Manual Temperature RTD Ranges and Accuracies ITS 90 Accuracy Type Range C Measure 4 Wire C Measure 2 and 3 Wire C Source C Pt200 385 200 to 250 0 2 0 3 0 2 250 to 630 0 8 1 6 0 8 Pt500 385 200 to 500 0 3 0 6 0 3 500 to 630 0 4 0 9 0 4 Pt1000 385 200 to 100 0 2 0 4 0 2 100 to 630 0 2 0 5 0 2 Resolution 0 1 C 0 1 F Allowable excitation current Source Ni120 Pt100 385 Pt100 392 Pt100 JIS Pt200 385 0 15 to 3 0 mA Pt500 385 0 05 to 0 80 mA Pt1000 385 0 05 to 0 40 mA RTD Source Addresses pulsed transmitters and PLCs with pulses as short as 5 ms 2 wire Does not include lead resistance 3 wire Assumes matched leads with a total resistance not exceeding 100 Q 42 Loop Power Supply Voltage 24 V Maximum current 22 mA Short circuit protected General Specifications Temperature Calibrator 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 operating without condensation Vibration Safety Power requirements Size Weight 90 10 to 30 C 75 30 to 40 C 45
5. or to step the output up or down in 25 steps e Touch momentarily either to go to 0 96 or to go to 100 Auto Ramping the Output Auto ramping gives you the ability to continuously apply a varying stimulus from the calibrator to a transmitter while your hands remain free to test the response of the transmitter When you press l the calibrator produces a continuously repeating 0 96 100 96 0 96 ramp in your choice of three ramp waveforms H 0 100 96 0 40 second smooth ramp e NM 0 100 0 15 second smooth ramp e qd 0 100 0 Stair step ramp in 25 steps pausing 5 seconds at each step To exit ramping press any button Temperature Calibrator Storing and Recalling Setups Storing and Recalling Setups You can store up to eight of your settings in a nonvolatile memory and recall the settings for later use A low battery condition or a battery change does not jeopardize the stored settings Proceed as follows 1 After you create a calibrator setup press SST In the display the memory locations appear 2 Press H or H to select locations one through eight An underscore appears below the selected memory location 3 Press 895 J Only the stored memory location will be displayed The setup is stored To recall setups proceed as follows 1 Press Bee The memory locations appear on the display 2 Press d or to select the appropriate location and press recat
6. 1 Users C 22 Top case decal 1548329 E 23 Fuse 0 05A 250V 2002234 37 724 Users Manual Figure 18 Replacement Parts 38 Specifications Specifications are based on a one year calibration cycle and apply from 18 C to 28 C unless stated otherwise All specifications assume a 5 minute warmup period DC Voltage Measurement Temperature Calibrator Accuracy Range Resolution of Reading Counts 30V 0 001 V 0 02 2 upper display 20 V 0 001 V 0 02 2 lower display 90 mV 0 01 mV 0 02 2 Specifications _ DC Voltage Source Accuracy Range Resolution of Reading Counts 100 mV 0 01 mV 0 02 2 10V 0 001 V 0 02 2 Temperature coefficient 10 C to 18 C 28 C to 55 C 0 005 of range per C Maximum load 1 mA DC mA Measurement Accuracy Range Resolution 96 of Reading Counts 24 mA 0 001 mA 0 02 96 2 Temperature coefficient 10 C to 18 C 28 C to 55 C 0 005 of range per C Temperature coefficient 10 C to 18 C 28 C to 55 C 0 005 of range per C Drive capability 1000 O at 20 mA 39 724 Users Manual Ohms Measurement Ohms Source Accuracy Q Ohms Range 4 Wire 2 and 3 Wire 0 to 400 Q 0 1 0 15 400 to 1 5 kQ 0 5 1 0 1 5 to 3 2 KQ 1 1 5 Excitation Current 0 2 mA Maximum input voltage 30 V Temperature coefficient 10 C to 18 C 28 C to 55
7. 40 to 50 C 35 96 50 to 55 C uncontrolled lt 10 C Random 2 g 5 to 500 Hz EN 61010 1 1993 ANSI ISA S82 01 1994 CAN CSA C22 2 No 1010 1 1992 4 AA alkaline batteries 96 x 200 x 47 mm 3 75 x 7 9 x 1 86 in 650 gm 1 Ib 7 oz 43 724 Users Manual 44 0 096 output parameter setting 30 1 100 output parameter setting 30 A Auto ramping output 31 B Batteries replacing 35 C Calibration 36 Cleaning calibrator 36 D Display 13 E Electrical parameters measurement 19 sourcing 26 QG Getting started 14 Index Input terminals Input output terminals and connectors table 6 K Key functions table 11 Keys 10 M Measure functions summary table Measure mode 17 Measuring temperature with RTDs temperature with thermocouples 20 45 724 Users Manual EN Output device testing 34 Output terminals p Parts list 37 R Recalling setups 31 Repair S6 RTD simulating 27 RTD measuring 23 types Ei 46 Safety information Servicing 36 Setup recalling storing Thermocouple 27 Simulating RTD 27 thermocouples 27 Source functions summary table 2 Sourcing electrical parameters 26 thermocouples Specifications Standard equipment 3 Stepping output 30 Storing setups 31 T Tempe
8. Figure 11 Measuring Temperature with an RTD Measuring 2 3 and 4 Wire Resistance Resistance to be measured Resistance to be measured Resistance to be measured zi08f eps 25 724 Users Manual Using Source Mode In SOURCE mode the calibrator generates calibrated signals for testing and calibrating process instruments supplies voltages and resistances and simulates the electrical output of RTD and thermocouple temperature sensors Sourcing Electrical Parameters Volts or ohms are sourced and shown in the lower display To select an electrical sourcing function proceed as follows 1 Connect the test leads as shown in Figure 12 depending on the source function 2 f necessary press lk SOURCE mode 3 Press for dc voltage or for resistance 4 Enter the desired output value by pressing and C2 keys Press kl and to select a different digit to change a TI LOOP com 0 com 30V MAX ALL TERMINALS N SOUR ASURE MEASURE v TC Common zi09f eps Figure 12 Electrical Sourcing Connections 26 Temperature Calibrator Using Source Mode Simulating Thermocouples Simulating RTDs Connect the calibrator TC input output to the instrument Connect the calibrator to the instrument under test as under test with thermocouple wire and the appropriate shown in Figure 14 Proceed as follows to simulate an thermocouple mini connector polarized thermocouple RTD plug with flat in l
9. the three wire connection the most common A four wire configuration provides the highest measurement precision and two wire provides the lowest measurement precision Temperature Calibrator Using Measure Mode To measure temperature using an RTD input proceed as follows 1 If necessary press for MEASURE mode 2 Press LPY J for the RTD display If desired continue pressing this key to select the desired RTD type 3 Press or to select a 2 3 or 4 wire connection 4 Attach the RTD to input terminals as shown in Figure 11 If necessary you can select C temperature units by pressing _ _ or F temperature units by pressing 23 724 Users Manual Table 6 RTD Types Accepted RTD Type Ice Point R Material o Pt100 3926 1000 Platinum 0 008926 oc 200 to 630 PHOO 385 1000 Platinum ooo3850 C O 200 to 800 Ni120 672 1200 Nickel o006720 C 80 to 260 Pt200 385 200 Q Platinum o003850 C 200 to 630 Pt500 385 500 Q Platinum oo03850 C 200 to 630 Pt1000 385 1000 0 Platinum ooo3850 C 200 to 630 Pt100 3916 1000 Platinum 0003916 0 C 200 to 630 The Pt100 commonly used in U S industrial applications is Pt100 3916 0 003916 O C Also designated as JIS curve The IEC standard RTD is the Pt100 385 o 0 00385 Q C 24 Temperature Calibrator Using Measure Mode
10. the calibrator if it is damaged Before you use the calibrator inspect the case Look for cracks or missing plastic Pay particular attention to the insulation surrounding the connectors Select the proper function and range for your measurement Make sure the battery door is closed and latched before you operate the calibrator Remove test leads from the calibrator before you open the battery door Inspect the test leads for damaged insulation or exposed metal Check test leads continuity Replace damaged test leads before you use the calibrator When using the probes keep your fingers away from the probe contacts Keep your fingers behind the finger guards on the probes Connect the common test lead before you connect the live test lead When you disconnect test leads disconnect the live test lead first Do not use the calibrator if it operates abnormally Protection may be impaired When in doubt have the calibrator serviced Do not operate the calibrator around explosive gas vapor or dust Temperature Calibrator Safety Information A Warning e Use only 4 AA batteries properly installed in the calibrator case to power the calibrator e Disconnect test leads before changing to another measure or source function e When servicing the calibrator use only specified replacement parts e To avoid false readings which could lead to possible electric shock or personal injury replace the batteries as soon as the battery ind
11. 31 724 Users Manual Calibrating a Transmitter Use the measurement upper display and source lower display modes to calibrate a transmitter The following example shows how to calibrate a temperature transmitter Connect the calibrator to the instrument under test as shown in Figure 15 Proceed as follows to calibrate a transmitter 1 Press voor for current measurement with loop power 2 Press T lower display If desired continue pressing this key to select the desired thermocouple type 3 If necessary press for SOURCE mode 32 Set your zero and span parameters by pressing C and keys Enter these parameters by pressing and holding and 19 For more information on setting parameters see Setting 0 and 100 96 earlier in this manual Perform test checks at 0 25 50 75 100 points by pressing 425 or v2 J Adjust the transmitter as necessary Temperature Calibrator Calibrating a Transmitter amp ul als je oe Ey 8 amp zi12f eps Figure 15 Calibrating a Thermocouple Transmitter 33 724 Users Manual Testing an Output Device Use the source functions to test and calibrate actuators recording and indicating devices Proceed as follows 1 Connect the test le
12. FLLIKE 724 Temperature Calibrator Users Manual February 2000 Rev 1 8 03 2000 2003 Fluke Corporation All rights reserved All product names are trademarks of their respective companies LIMITED WARRANTY amp 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 warranty extends only to the original buyer or end user customer of a Fluke authorized reseller and does not apply to fuses disposable batteries or to any product which in Fluke s opinion has been misused altered neglected contaminated or damaged by accident or abnormal conditions of operation or handling Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non defective media Fluke does not warrant that software will be error free or operate without interruption Fluke authorized resellers shall extend this warranty on new and unused products to end user customers only but have no authority to extend a greater or different warranty on behalf of Fluke Warranty support is available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price Fluke reserves the right to invoice Buyer for im
13. RTD resistance temperature detector measurement and sourcing function in lower display Repeated pushes cycle through the RTD types Selects the ohms measurement and sourcing function 12 Temperature Calibrator Getting Acquainted with the Calibrator Display Figure 4 shows the elements of a typical display Loop Memory Locations Annunciator for Calibrator Setups Low Battery b Symbol E Sr Units H H H H H Mode Indicator i i SOURCEMEASURE AUTOA Mri sh07f eps Figure 4 Elements of a Typical Display 13 724 Users Manual Getting Started This section acquaints you with some basic operations of the calibrator Proceed as follows to perform a voltage to voltage test 1 Connect the calibrator s voltage output to its voltage input as shown in Figure 5 2 Press to turn on the calibrator Press to select dc voltage upper display 3 If necessary press for SOURCE mode lower display The calibrator is still measuring dc voltage and you can see the active measurements in the upper display 4 Press v to select dc voltage sourcing 5 Press and to select a digit to change Press to select 1 V for the output value Press and hold to enter 1 V as the 0 value 14 6 Press to increase the output to 5 V Press and hold 90 to enter 5 V as the 100 value 7 Press 42 and 2 to step between 0 and 100 96 in 25 96 step increme
14. RU DS E Setting 0 and 100 Output Parameters ssnsssnneesneeeeeteeettteretnnetnnnrttnneeennnnenn nenna Stepping and Ramping the Output Manually Stepping the Output Auto Ramping the Output Storing and Recalling Set ps eniin ione initia cri eto tetra eee etos een Loue Calibrating a Transmitter Testing an Output DEV CE sciis 8 Haie Replacing the Batteries eene nnne Replacing the Fuse i nest Hien eite ehe SEE ee Maintenance Cleaning the Calibrator ee en Service Center Calibration or Repair Replacement Parts ien pec He ERR LER EIER eee iler eipecii eje T DC Voltage Measurement esses enne nnne nennen nnne nennen nnne DC Voltage Gource eene nennen nnne tnnt nnns DG mA Measurement rasen ec ean ea Ohms Measurement cccceecceeseeeeseeeceeeeeeeetaeeesaeesaaeeesaeeseaeesaeeseaeessaeessaeetsaeeeeaeers MIMS SOURCE eg Essen ee evant eddie iets Millivolt Measurement and Gource nn Temperature Thermocouples 2 ccsecceceseeceeeseeceeeeseeeeeesenseesesceeeseseeseeseseeeeseneees Temperature RTD Ranges and Accuracies ITS 90 Loop Power Supply RE il Temperature Calibrator Contents continued iii 724 Users Manual List of Tables Table Title 1 Summary of Source and Measure Funchoms 2 International Symbols AA 3 Input Output Terminals and CGonnechors nennen 4 rie
15. Thermocouple Types Accepted Temperature Calibrator Using Measure Mode Positive Lead H Type Positive Lead Color Negative Lead Specified Range Material ANSI IEC Material C E Chromel Purple Violet Constantan 200 to 950 oN Ni Cr Si Orange Pink Ni Si Mg 200 to 1300 J Iron White Black Constantan 200 to 1200 K Chromel Yellow Green Alumel 200 to 1370 T Copper Blue Brown Constantan 200 to 400 B Platinum 30 Rhodium Gray Platinum 6 Rhodium 600 to 1800 R Platinum 13 Rhodium Black Orange Platinum 20 to 1750 S Platinum 10 Rhodium Black Orange Platinum 20 to 1750 L Iron Constantan 200 to 900 U Copper Constantan 200 to 400 American National Standards Institute ANSI device negative lead L is always red International Electrotechnical Commission IEC device negative lead L is always white 21 724 Users Manual 30V MAX ALL TERMII SOURCE MEASURE Process Temperature Warning A l 30 V maximum to TC Miniplug zi14f eps Figure 10 Measuring Temperature with a Thermocouple 22 Using Resistance Temperature Detectors RTDs The calibrator accepts RTD types shown in Table 6 RTDs are characterized by their resistance at 0 C 32 F which is called the ice point or R The most common R is 100 Q The calibrator accepts RTD measurement inputs in two three or four wire connections with
16. Y IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES INCLUDING LOSS OF DATA ARISING FROM ANY CAUSE OR THEORY Since some countries or states do not allow limitation of the term of an implied warranty or exclusion or limitation of incidental or consequential damages the limitations and exclusions of this warranty may not apply to every buyer If any provision of this Warranty is held invalid or unenforceable by a court or other decision maker of competent jurisdiction such holding will not affect the validity or enforceability of any other provision Fluke Corporation Fluke Europe B V P O Box 9090 P O Box 1186 Everett WA 98206 9090 5602 BD Eindhoven U S A The Netherlands 11 99 Table of Contents Title Page Display Getting Stated WEE naso Mdee naeia een ea E Ea Ea EE EEE Contrast Adlustment AAA Using Measure Mode eeesseeseeeeeeeeeeeeeeennen entren n nnne tentent rnnt Measuring Electrical Parameters Upper Display Current Measurement with Loop Power Measuring Electrical Parameters Lower Display Measuring Temperature Using W lle ie EE 724 Users Manual Using Resistance Temperature Detectors RTDs IBI Toe Source ModE Pes Sourcing Electrical Parameters sssssseeeeeneeneennee nennen Simulating Thermocouples AAA SIMUMATING
17. ads to the instrument under test as shown in Figure 16 2 Press for dc voltage or for resistance lower display 3 If necessary press for SOURCE mode 0 to 1 V dc Input CO a 0 A zi13f eps Figure 16 Calibrating a Chart Recorder 34 Replacing the Batteries AN Warning To avoid false readings which could lead to possible electric shock or personal injury replace the batteries as soon as the battery indicator l appears Figure 17 shows you how to replace the batteries Replacing the Fuse The calibrator comes equipped with one 0 05A 250V Socketed fuse to protect the calibrator AWarning To avoid electrical shock remove the test leads from the calibrator before opening the battery door Close and latch the battery door before using the calibrator The fuse can be removed and checked for resistance A value of lt 10 O is good Problems while measuring using the right jacks indicate that F3 may have opened To replace the fuse refer to Figure 17 and perform the following steps Temperature Calibrator Replacing the Batteries Turn the calibrator off remove the test leads from the terminals and hold the calibrator face down Using a flat blade screwdriver turn the battery door screws 1 4 turn counterclockwise and remove the batter
18. and hold to store any source value as the 100 96 value 4 25 Increments output by 25 of span Vv 25 Decrements output by 25 of span SEO S x Recalls from memory a source value corresponding to 0 of span and sets it as the source value Press and hold to store the source value as the 0 value Identifies Firmware version Press and hold when powering up 11 724 Users Manual Table 4 Key Functions cont z Name AM SS STORE SETUP X E amp ERE Description Cycles through Slow repeating 0 96 100 96 0 ramp M Fast repeating 0 100 96 0 ramp rH Repeating 0 96 100 96 0 ramp in 25 96 steps Disables Shut Down Mode Enables Shut Down Mode Increases or decreases the source level Cycles through the 2 3 and 4 wire selections Moves through the eight memory locations of calibrator setups In Contrast Adjustment mode up darkens contrast down lightens contrast Retrieves a previous calibrator setup from one of eight memory locations Saves the calibrator setup to one of eight memory locations Saves Contrast Adjutment setup Cycles the calibrator through MEASURE and SOURCE modes in the lower display Selects TC thermocouple measurement and sourcing function in the lower display Repeated pushes cycle through the thermocouple types Toggles between voltage sourcing and measuring functions in the lower display Selects
19. eters Upper Display To measure the current or voltage output of a transmitter use the upper display and proceed as follows 1 Press to select current LOOP should not be on 2 Connect the leads as shown in Figure 7 Current Measurement with Loop Power The loop power function activates a 24 V supply in series with the current measuring circuit allowing you to test a transmitter when it is disconnected from plant wiring To measure current with loop power proceed as follows 1 Connectthe calibrator to the transmitter current loop terminals as shown in Figure 8 2 Press while the calibrator is in current measurement mode LOOP appears and an internal 24 V loop supply turns on Temperature Calibrator sRATOR FLUKE 724 reurenarune ci A MEAS source STORE SETUP RECALL Using Measure Mode zi05f eps Figure 7 Measuring Voltage and Current Output 17 724 Users Manual v n als je eee zi06f eps Figure 8 Connections for Supplying Loop Power 18 Measuring Electrical Parameters Lower Display To measure the electrical parameters using the lower display proceed as follows 1 Connect the calibrator as shown
20. icator EM appears Caution To avoid possible damage to calibrator or to equipment under test e Disconnect the power and discharge all high voltage capacitors before testing resistance or continuity e Use the proper jacks function and range for your measurement or sourcing application 724 Users Manual Alligator Clips a 9 C TL75 Test Lead Set Stackable 7 Test Leads zi01f eps Figure 1 Standard Equipment Temperature Calibrator Safety Information Table 2 International Symbols AC Alternating current n Double insulated TI DC Direct current Battery ali Earth ground Refer to the manual for information about i this feature H Pressure ON OFF Conforms to Canadian Standards C Conforms to European Union directives SR Association directives 724 Users Manual Getting Acquainted with the Calibrator Input and Output Terminals Figure 2 shows the calibrator input and output terminals Table 3 explains their use zi02f eps Figure 2 Input Output Terminals and Connectors No D 5 CO Name MEASURE V mA terminals TC input output SOURCE MEASURE V RTD Q terminals MEASURE 3W 4W Temperature Calibrator Getting Acquainted with the Calibrator Table 3 Input Output Terminals and Con
21. in Figure 9 2 If necessary press for MEASURE mode lower display 3 Press v for dc voltage or current or for resistance Temperature Calibrator Using Measure Mode MEAS Source v STORE SETUP RECALL Figure 9 Measuring zi07f eps Electrical Parameters 19 724 Users Manual Measuring Temperature Using Thermocouples The calibrator supports ten standard thermocouples including types E N J K T B R S L or U Table 5 summarizes the ranges and characteristics of the supported thermocouples To measure temperature using a thermocouple proceed as follows 1 Attach the thermocouple leads to the appropriate TC miniplug then to the TC input output as shown in Figure 10 20 Note One pin is wider than the other Do not try to force a miniplug in the wrong polarization If the calibrator and the thermocouple plug are at different temperatures wait one minute or more for the connector temperature to stabilize after you plug the miniplug into the TC input output If necessary press for MEASURE mode Press 7 jJ for the TC display If desired continue pressing this key to select the desired thermocouple type If necessary you can select C temperature units by pressing _ _ or F temperature units by pressing LE Table 5
22. ine blades spaced 7 9 mm 0 312 in center to center 2 Note One pin is wider than the other Do not try to force a miniplug in the wrong polarization Figure 13 shows this connection Proceed as follows to simulate a thermocouple 1 Attach the thermocouple leads to the appropriate TC miniplug then to the TC input output as shown in Figure 13 2 If necessary press for SOURCE mode 3 Press c for the TC display If desired continue 4 pressing this key to select the desired thermocouple type 4 Enter the temperature you want by pressing and C2 keys Press and to select a different digit to edit If necessary press for SOURCE mode Press mm for the RTD display Note Use the 3W and 4W terminals for measurement only not for simulation The calibrator simulates a 2 wire RTD at its front panel To connect to a 3 wire or 4 wire transmitter use the stacking cables to provide the extra wires See Figure 14 Enter the temperature you want by pressing C and C2 keys Press and to select a different digit to edit If the 724 display indicates Exl HI the excitation current from your device under test exceeds the limits of the 724 27 724 Users Manual ee FLUKE 724 reurenarune oaumaron B J mA d i O resr pc Pwr O Color depends on type of TC
23. librator If the calibrator is damaged or something is missing contact the place of purchase immediately To order replacement parts or spares see the user replaceable parts list in Table 7 e TL75 test leads one set e Alligator clips one set e Stackable alligator clip test leads one set e 724 Product Overview Manual e 724 CD ROM contains Users Manual e Spare fuse Temperature Calibrator Standard Equipment Safety Information The calibrator is designed in accordance with IEC1010 1 ANSI ISA S82 01 1994 and CAN CSA C22 2 No 1010 1 92 Use the calibrator only as specified in this manual otherwise the protection provided by the calibrator may be impaired A Warning identifies conditions and actions that pose hazard s to the user a Caution identifies conditions and actions that may damage the calibrator or the equipment under test International symbols used on the calibrator and in this manual are explained in Table 2 724 Users Manual A 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 calibrator s operation by measuring a known voltage Follow all equipment safety procedures Never touch the probe to a voltage source when the test leads are plugged into the current terminals Do not use
24. nectors Description Input terminals for measuring voltage current and supplying loop power Terminal for measuring or simulating thermocouples This terminal accepts a miniature polarized thermocouple plug with flat in line blades spaced 7 9 mm 0 312 in center to center Terminals for sourcing or measuring voltage resistance and RTDs Terminals for performing 3W and 4W RTD measurements 724 Users Manual Keys Figure 3 shows the calibrator keys and Table 4 explains their use FLUKE 724 zouenen CALIBRATOR SOURCEMEASURE AUTO AM r 14 RECALL AME zi03f eps Figure 3 Keys 10 z D 3 Temperature Calibrator Getting Acquainted with the Calibrator Table 4 Key Functions Description Turns the power on or off Selects voltage measurement function in the upper display Selects the mA measurement function in the upper display Activates a 24 volt loop supply while measuring mA Turns backlight on or off Turns contrast adjust mode on when powering up Displays temperature in degrees Celsius when in TC or RTD functions Displays temperature in degrees Fahrenheit when in TC or RTD functions amp C 9 9G G9 9 CO 100 DEER Recalls from memory a source value corresponding to 100 of span and sets it as the source value Press
25. nts Shut Down Mode The calibrator comes with the Shut Down mode enabled for a time duration set to 30 minutes displayed for about 1 second when the calibrator is initially turned on When the Shut Down mode is enabled the calibrator will automatically shut down after the time duration has elapsed from the time the last key was pressed To disable the Shut Down mode press and simultaneously To enable the mode press and simultaneously To adjust the time duration press and simultaneously then press c and or to adjust the time between 1 and 30 minutes Temperature Calibrator Shut Down Mode i zi04f eps Figure 5 Voltage to Voltage Test 724 Users Manual Contrast Adjustment Note Available with V2 1 Firmware or greater To identify firmware version press and hold when powering up The firmware version will be shown in the upper units display for about 1 second after initialization To adjust the contrast proceed as follows 1 Press amp and until Contst Adjust is displayed as shown in Figure 6 2 Press and hold C to darken contrast 3 Press and hold to lighten contrast 4 Press 2985 to save the contrast level 16 MEAS ISOURCE STORE SETUP RECALL Figure 6 Adjusting the Contrast zi15f eps Using Measure Mode Measuring Electrical Param
26. o the functions in Table 1 the calibrator has the following features and functions e A split screen display The upper display allows you to measure volts and current The lower display allows you to measure and source volts resistance temperature detectors thermocouples and ohms e Athermocouple TC input output terminal and internal isothermal block with automatic reference junction temperature compensation e Storage and recall of 8 setups e Manual stepping and automatic stepping and ramping Temperature Calibrator Contacting Fluke To order accessories receive operating assistance or get the location of the nearest Fluke distributor or Service Center call USA 1 888 99 FLUKE 1 888 993 5853 Canada 1 800 363 5853 Europe 31 402 675 200 Japan 81 3 3434 0181 Singapore 65 738 5655 Anywhere in the world 1 425 356 5500 Or visit Fluke s Web site at www fluke com 724 Users Manual Table 1 Summary of Source and Measure Functions Function Measure Source dc V 0 V to30 V OVto10 V Resistance 0 Q to 3200 Q 15 Q to 3200 Q Thermocouple Types E J K T B R S L U N mV RTD Resistance Temperature Detector Other functions Pt100 Q 385 Pt100 Q 3926 Pt100 Q 3916 Pt200 Q 385 Pt500 Q 385 Pt1000 Q 385 Ni120 Loop supply Step Ramp Memory Dual display Standard Equipment The items listed below and shown in Figure 1 are included with your ca
27. portation costs of repair replacement parts when product purchased in one country is submitted for repair in another country Fluke s warranty obligation is limited at Fluke s option to refund of the purchase price free of charge repair or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period To obtain warranty service contact your nearest Fluke authorized service center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destination Fluke assumes no risk for damage in transit Following warranty repair the product will be returned to Buyer transportation prepaid FOB Destination If Fluke determines that failure was caused by neglect misuse contamination alteration accident or abnormal condition of operation or handling including overvoltage failures caused by use outside the product s specified rating or normal wear and tear of mechanical components Fluke will provide an estimate of repair costs and obtain authorization before commencing the work Following repair the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges FOB Shipping Point THIS WARRANTY IS BUYER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO AN
28. rature measuring with RTD 23 measuring with thermocouple Terminals input 8 output 8 Thermocouple measuring 20 measuring temperature 20 sourcing types Transmitter calibrating 32
29. t the beginning of this manual for warranty terms If the warranty period has expired the calibrator will be repaired and returned for a fixed fee If the calibrator is not covered under the warranty terms contact an authorized service center for a price quote for repair To locate an authorized service center refer to Contacting Fluke at the beginning of the manual Replacement Parts Table 7 lists the part number of each replaceable part Refer to Figure 18 Table 7 Replacement Parts Item Description PN Qty 1 Case top 664232 1 2 LCD mask 1548383 1 3 Elastomeric strips 802063 2 4 Input output bracket 1549221 1 5 LCD bracket 667287 1 Temperature Calibrator Maintenance 6 Mounting screws 494641 11 7 Backlight 690336 1 8 LCD 690963 1 9 Keypad 1548126 1 10 Case bottom 664235 1 11 AA alkaline batteries 376756 4 12 Case screws 832246 4 13 Battery door 664250 1 14 Accessory mount 658424 1 15 Tilt stand 659026 1 Re Battery door 1 4 turn 948609 2 fasteners 17 TL75 series test leads 855742 1 18 Es lead red 688051 1 Test lead black 688066 1 19 724 Product Overview 1547851 1 Manual p AC72 alligator clip red 1670641 1 AC72 alligator clip black 1670652 1 21 CD ROM includes the 724 1547849
30. y door Remove and replace the damaged fuse Replace the battery door and secure it by turning the screws 1 4 turn clockwise 35 724 Users Manual Battery and Compartment Compartment sh38f eps Figure 17 Replacing the Batteries 36 Maintenance Cleaning the Calibrator A Warning To avoid personal injury or damage to the calibrator use only the specified replacement parts and do not allow water into the case Caution To avoid damaging the plastic lens and case do not use solvents or abrasive cleansers Clean the calibrator with a soft cloth dampened with water or water and mild soap Service Center Calibration or Repair Calibration repairs or servicing not covered in this manual should be performed only by qualified service personnel If the calibrator fails check the batteries first and replace them if needed Verify that the calibrator is being operated in accordance with the instructions in this manual If the calibrator is faulty send a description of the failure with the calibrator Be sure to pack the calibrator securely using the original shipping container if it is available Send the equipment postage paid and insured to the nearest Service Center Fluke assumes no responsibility for damage in transit The Fluke 724 Temperature Calibrator covered by the warranty will be promptly repaired or replaced at Fluke s option and returned to you at no charge See the warranty a
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