Fluke 725Ex Calibration Manual
Contents
1. 324 Volts per count 0 000977 press space bar to continue Press the space bar to return to the Calibration Menu 41 725Ex Calibration Manual Cal ISO mA Connect the UUT as shown in Figure 23 NORMAL AUX Warning A V 0 RTD A 0 SENSE AUX V 30 V maximum to 30V MAX ALL TERMINALS N SOURCE MEASURE ic o d Gul a RTD ze 20V PK MAX TC 20V PK MAX EE aal05f eps Figure 23 ISO mA Calibration Connections From the Calibration Menu enter the cal step for Cal ISO mA The PC displays Enter 0 ma press space bar to continue Set the Fluke 5520A to output 0 0000 mA After a short while the PC displays the following calibration constants and prompt Offset 323 Enter 24 00 ma press space bar to continue Set the Fluke 5520A to output 24 0000 mA then press the space bar on the PC After a short while the PC displays the following calibration constants diff Counts Offset 32133 31810 323 mA per count 0 000747 press space bar to continue Press the space bar to return to the Calibration Menu Adjustment is completed Turn the UUT off then back on to return to normal operation 42 Multifunction Process Calibrator Replaceable Parts Replaceable Parts When servicing this Calibrator use only the replacement parts specified User replaceable parts are listed in Table 18 Table 18 User Replaceable Parts ENG I H2. manual showing a calibrator or digital multimeter use a Fluke 5520A Calibrator or HP 3458A DMM If using a different DMM make the connections appropriate for that instrument To prepare the UUT for the performance tests do the following 1 Make sure that the required equipment is available see Table 3 2 Make sure the UUT has fresh batteries See Replacing the Batteries 3 Warm up the Calibrator and multimeter as required by their specifications 4 Remove all test leads from the front of the UUT 5 Make sure that the UUT is in a stable ambient temperature between 18 C and 28 C 64 4 F and 82 4 F and that it has been warmed up for five minutes Multifunction Process Calibrator Performance Tests Upper Display Voltage Measurement Tests 1 Press RESET on the 5520A 2 Press on the UUT until V appears on the upper display 3 Make the connections shown in Figure 2 4 Set up the 5520A to output each of the voltages in Table 4 and verify that the UUT readings are within the limits shown 5 Press STBY on the 5520A NORMAL AUX Warning A V 0 RTD A O SENSE AUX V 30 V maximum to 30V MAX ALL TERMINALS Z SOURCE MEASURE MEASURE ZA 20V PK MAX TC 20V PK MAX L L UUT 5520A aal03f eps Figure 2 Upper Display Voltage Test Connections Table 4 Upper Display Voltage Readings 5520A Outputs UUT Readings 0 000 V 0 002 V to 0 002 V 15 000 V 14
3. 995 V to 15 005 V 30 000 V 29 992 V to 30 008 V 13 725Ex Calibration Manual Lower Display mV Measurement Tests 1 Press RESET on the 5520A 2 Press on the UUT until MEASURE and mV appear on the lower display 3 Make the connections shown in Figure 3 4 Set up the 5520A to output each of the voltages in Table 5 and verify that the UUT readings are within the limits shown 5 Press STBY on the 5520A s NORMAL AUX SCOPE Warning A V 0 4 RTD A Q SENSE AUX V 30 V maximum to d 30V MAX ALL TERMINALS N SOURCE MEASURE MEASURE V Q ASH Loop D dc M GROUNDED AX 20V PK MAX TC 20V PK MAX N 4 4 5520A aal04f eps Figure 3 Lower Display mV and Voltage Test Connections Table 5 Lower Display mV Readings 5520A Outputs UUT Readings 0 00 mV 0 02 mV to 0 02 mV 50 00 mV 49 97 mV to 50 03 mV 89 00 mV 88 96 mV to 89 04 mV 14 Multifunction Process Calibrator Performance Tesis Lower Display Voltage Measurement Tests 1 2 3 4 Press RESET on the 5520A Press on the UUT until MEASURE and V appear on the lower display Make the connections shown in Figure 3 Set up the 5520A to output each of the voltages in Table 6 and verify that the UUT readings are within the limits shown Press STBY on the 5520A Table 6 Lower Display Voltage Readings 5520A Outputs UTT Readings 0 000 V 0 002 V to 40 002 V 10 000 V 9 996 V to 10 004 V 5 00
4. Apply 500 ohms to 4 wire jacks press space bar to continue Set the Fluke 5520A to output 500 0 Ohms 2 wire output with 2 wire comp off then press the space bar on the PC After a short while the PC displays Apply 3200 ohms to 4 wire jacks press space bar to continue Set the Fluke 5520A to output 3200 0 Ohms then press the space bar on the PC After a short while the Calibrator will return to the Calibration Menu 40 Multifunction Process Calibrator Calibration Adjustment Procedures Cal ISO Volts Connect the UUT as shown in Figure 22 NORMAL AUX V 0 RTD A O SENSE AUX V Warning A 30 V maximum to 30V MAX ALL TERMINALS Z SOURCE MEASURE MEASURE mA OC 8 Vv V d los E RID oor e GROUNDED N 20V PK MAX TC 20V PK MAX L L 5520A aal03f eps Figure 22 ISO Volts Calibration Connections From the Calibration Menu enter the cal step for Cal ISO Volts The PC displays Enter 0 Volts press space bar to continue Set the Fluke 5520A to output 0 0000 V then press the space bar on the PC After a short while the PC displays the following a calibration constant and new prompt Offset 324 Enter 30 00 Volts press space bar to continue Set the Fluke 5520A to output 30 0000 V then press the space bar on the PC After a short while the PC displays the following calibration constants and prompt diff Counts Offset 30700 30376
5. Cal Ohms Hi Source Connect the UUT as shown in Figure 20 Warning A ET 30 V maximum to dee d mA RID H X9 HP3458 aal13f eps Figure 20 Ohms Hi Source Calibration Connections From the Calibration Menu enter the cal step for Cal Ohms Hi Source The PC displays 2500 into DAC Enter Ohms displayed Set the HP 3458 to read 4 terminal Ohms Be sure the NPLC on the HP 3458 is slow enough to get stable readings When the reading on the HP 3458 has stabilized enter the value in Ohms on the PC then press Enter After a short while the PC displays Max value into DAC Enter Ohms value displayed Enter the resistance reading from the HP 3458 in the PC then press Enter After a short while the PC displays the following calibration constants and new prompt 0 050685 3309 000015 0 365000 65279 00 Ohms per count 0 050685 press space bar to continue Press the space bar to return to the Calibration Menu 37 725Ex Calibration Manual Cal Ohms Low Source 38 The UUT connection is the same as cal Ohms Hi Source it is shown in Figure 20 From the Calibration Menu enter the cal step for Cal Ohms Low Source The PC displays 2500 into DAC Enter Ohms displayed Set the HP 3458 to read 4 terminal Ohms Be sure the NPLC on the HP 3458 is slow enough to get stable readings When the reading on the HP 3458 has stabilized enter the value in Ohms on the PC then press Enter Af
6. Fluke Corporation Some semiconductors and custom IC s can be damaged by electrostatic discharge during handling This notice explains how you can o minimize the chances of destroying such devices Sie 1 Knowing that there is a problem 2 Learning the guidelines for handling them 3 Using the procedures packaging and bench techniques that are recommended The following practices should be followed to minimize damage to S S static sensitive devices i 1 3 DISCHARGE PERSONAL STATIC BEFORE HANDLING DEVICES USE A HIGH RESIS 1 MINIMIZE HANDLING TANCE GROUNDING WRIST STRAP 2 KEEP PARTS IN ORIGINAL CONTAINERS UNTIL READY FOR USE 4 HANDLE S S DEVICES BY THE BODY 5 USE STATIC SHIELDING CONTAINERS FOR 8 WHEN REMOVING PLUG IN ASSEMBLIES HANDLING AND TRANSPORT HANDLE ONLY BY NON CONDUCTIVE EDGES AND NEVER TOUCH OPEN EDGE CONNECTOR EXCEPT AT STATIC FREE WORK STATION PLACING SHORTING STRIPS ON EDGE CONNECTOR HELPS PROTECT INSTALLED S S DEVICES 6 DO NOT SLIDE S S DEVICES OVER ANY SURFACE C 9 HANDLE S S DEVICES ONLY AT A STATIC FREE WORK STATION 10 ONLY ANTI STATIC TYPE SOLDER SUCKERS SHOULD BE USED 11 ONLY GROUNDED TIP SOLDERING IRONS SHOULD BE USED 7 AVOID PLASTIC VINYL AND STYROFOAM IN WORK AREA PORTIONS REPRINTED WITH PERMISSION FROM TEKTRONIX INC AND GERNER DYNAMICS POMONA DIV Dow Chemical Multifunction Process Calibrator Basic Maintenance Basic Mainte
7. or Buyer has paid the applicable international price Fluke reserves the right to invoice Buyer for importation 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 EXCL
8. 0 C to 18 C 28 C to 55 C 0 005 of resistance range per C Frequency Measurement Range Resolution Accuracy 2 0 to 1000 0 CPM 0 1 CPM 0 05 1 count 1 to 1000 Hz 1 0 Hz 0 05 1 count 1 0 to 10 0 kHz 0 1 kHz 0 05 1 count Sensitivity 1V peak to peak minimum Waveform squarewave Frequency Source i Accuracy 2 0 to 1000 0 CPM 0 1 CPM t 0 05 1 0 to 10 0 kHz 0 1 kHz t 0 25 96 Waveform 5 V p p squarewave 0 1 V offset Multifunction Process Calibrator Specifications Temperature Thermocouples 200 to 0 C 1 0 C 0 to 1200 C 0 7 C 200 to 0 C 1 2 C 0 to 1370 C 0 8 C 200 to 0 C 1 2 C 0 to 400 C 0 8 C 200 to 0 C 0 9 C 0 to 950 C 0 7 C 20 to 0 C 2 5 C 0 to 500 C 1 8 C 500 to 1750 C 1 4 C 20 to 0 C 2 5 C 0 to 500 C 1 8 C 500 to 1750 C 1 5 C 600 to 800 C 2 2 C 800 to 1000 C 1 8 C 1000 to 1800 C 1 4 C 200 to 0 C 0 85 C 0 to 900 C 0 7 C 200 to 0 C 1 1 C 0 to 400 C 0 75 C 200 to 0 C 1 5 C 0 to 1300 C 0 9 C 200 to 100 C 0 5 C 100 to 800 C 0 6 C 0 to 800 C 1 2 C 800 to 2500 C 2 5 C Resolution 0 1 C 0 1 F Loop Power Supply Voltage 12 V Maximum current 24 mA Short circuit protected Entity Parameters For Entity Parameters Refer to Fluke 725Ex CCD for use in Ex hazardous areas RTD Excitation simulation Allowabl
9. 0 V 4 997 V to 5 003 V 15 725Ex Calibration Manual Upper Display mA Measurement Tests 1 Press RESET on the 5520A 2 Press on the UUT until MEASURE and mA appear on the upper display 3 Make the connections shown in Figure 4 4 Set up the 5520A to output each of the voltages in Table 7 and verify that the UUT readings are within the limits shown 5 Press STBY on the 5520A NORMAL AUX V 0 4 RTD A O SENSE AUX V Warning AN 30 V maximum to 30V MAX ALL TERMINALS N SOURCE MEASURE MEASURE det CA T z R D i Ke Sp GROUNDED 20V PK MAX LEE 20V PK MAX N SP aal05f eps Figure 4 Upper Display mA Test Connections Table 7 Upper Display mA Readings 5520A Settings UUT Readings 0 000 mA 0 002 mA to 0 002 mA 12 000 mA 11 995 mA to 12 005 mA 24 000 mA 23 993 mA to 24 007 mA 16 Multifunction Process Calibrator Performance Tesis Lower Display mA Measurement Tests 1 Press RESET on the 5520A 2 Press on the UUT until MEASURE and mA appear on the lower display 3 Make the connections shown in Figure 5 4 Set up the 5520A to output each of the voltages shown in Table 8 and verify that the UUT readings are within the limits shown 5 Press STBY on the 5520A NORMAL AUX V 9 RTD A O SENSE AUX V Warning A L 30 V maximum to 30V MAX ALL TERMINALS N SOURCE MEASURE MEASURE V v o TC mA Hz RTD LOOP SHELLS 5 NOT GRO
10. 000 V and press the space bar After a short while the following calibration constants and prompt are displayed on the PC diff Counts Offset 3032676 3032636 40 Volts per count 0 000003 press space bar to continue Press the space bar to return to the Calibration Menu 30 Multifunction Process Calibrator Calibration Adjustment Procedures Cal Volts Output Connect the UUT as shown in Figure 14 Warning A 30 V maximum to 30V MAX ALL TERMINALS N RIRCE MEASURE de G GUARD Il UUT HP3458 aal08f eps Figure 14 Volts Output Calibration Connections From the Calibration Menu type the number or letter for Cal Volts Output The PC displays Zero into DAC Enter the Volts displayed Set the HP 3458 to read V DC Be sure the NPLC on the HP 3458 is slow enough to get stable readings to four decimal places When the reading on the HP 3458 has stabilized enter the value in volts on the PC and press Enter It is only necessary to enter four places past the decimal point It is not necessary to enter the units V After a short while the PC displays Max value into DAC Enter the Volts displayed Enter the voltage reading four places past the decimal from the HP 3458 on the PC then press Enter After a short while the PC displays the following calibration constants and new prompt 0 000170 11 071999 0 000000 65279 00 press space bar to continue Press
11. AN SH 30 V maximum to 30V MAX ALL TERMINALS N S MEASURE mA Vv G f Oh zo HP3458 aal12f eps Figure 11 Lower Display mA Source Connections Table 14 Lower Display mA Source Readings UUT Outputs HP 3458A Readings 4 000 mA 3 9972 mA to 4 0028 mA 12 000 mA 11 9956 mA to 12 0044 mA 20 000 mA 19 9940 mA to 20 0060 mA 24 000 mA 23 9932 mA to 24 0068 mA 25 725Ex Calibration Manual Lower Display mV Source Tests l1 Press E on the UUT until SOURCE appears on the lower display then press until mV appears on the lower display 2 Set the HP 3458A to measure dc voltage in the 200 mV range Connect the UUT to the HP 3458A as shown in Figure 7 4 Usethe arrow keys on the UUT to set the UUT output to the current values in Table 15 and verify that the HP 3458A readings are within the limits shown 5 Press Eon the UUT to disable the sourcing function Table 15 Lower Display mV Source Readings UUT Outputs HP 3458A Readings 0 00 mV 0 020 mV to 0 020 mV 50 00 mV 49 970 mV to 50 030 mV 100 00 mV 99 960 mV to 100 040 mV Lower Display Voltage Source Tests 1 Press ei on the UUT until SOURCE appears on the lower display then press Y mA until V appears on the lower display 2 Set the HP 3458A to measure dc voltage in the 20 V range Connect the UUT to the HP 3458A as shown in Figure 7 4 Use the arrow keys on the UUT to set th
12. FLUKE 725Ex Multifunction Process Calibrator Calibration Manual PN 2406553 January 2005 Rev 1 5 09 2005 2009 Fluke Corporation All rights reserved Printed in USA Specifications are subject to change without notice All product names are trademarks of their respective companies LIMITED WARRANTY AND 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
13. L 5520A aal09f eps Figure 8 Lower Display 4 Wire Resistance Test Connections Table 10 Lower Display 4 Wire Resistance Readings 5520A Outputs UUT Readings 15 00 Q 14 90 Q to 15 10 Q 300 00 Q 299 90 Q to 300 10 Q 1500 0 Q 1499 5 Q to 1500 5 Q 3000 0 Q 2999 0 Q to 3001 0 Q 20 Multifunction Process Calibrator Performance Tesis Lower Display 4 Wire RTD Measurement 1 Press on the UUT until the lower display reads PT3916 If necessary use to select C units and to get to the AN mode MEASURE should also appear on the lower display 2 Set the 5520A to 2 wire output with 2 wire compensation off Make the connections shown in Figure 8 4 Setthe 5520A to source the resistance values in Table 11 and verify that the UUT temperature readings are within the limits shown for the 4 wire readings Table 11 Lower Display 4 Wire and 3 Wire RTD Temperature Readings 5520A Outputs C 3 Wire UUT Readings C 4 Wire UUT Readings C 180 0 25 799 Q 179 5 to 180 5 179 7 to 180 3 100 0 139 171 Q 99 5 to 100 5 99 7 to 100 3 550 0 300 822 Q 549 5 to 550 5 549 7 to 550 3 21 725Ex Calibration Manual Lower Display 3 Wire RTD Measurement 1 Press on the UUT until the lower display reads PT3916 If necessary use to select C units and the arrow keys to get to the 3W mode MEASURE should also appear on the lower display 2 Set the 5520A to 2 wire output with 2 wire
14. NEEeeN AC72 alligator clip red AC72 alligator clip black 1670652 Fluke 725Ex CD ROM contains Fluke 725Ex 2406548 User Manual a a E su E RH KE E Test lead black 688066 or 43 725Ex Calibration Manual 44
15. UNDED aal06f eps Figure 5 Lower Display mA Test Connections Table 8 Lower Display mA Readings 5520A Outputs UUT Readings 0 000 mA 0 002 mA to 0 002 mA 12 000 mA 11 995 mA to 12 005 mA 24 000 mA 23 993 mA to 24 007 mA 17 725Ex Calibration Manual Lower Display Frequency Measurement Test 1 mA 3w S SY Em me p GEO Set the 5520A to source a 40 Hz 1 V peak to peak square wave use the blue softkey under the wave type to change the wave shape Press 2 on the UUT until MEASURE and Hz appear on the lower display Make the connections shown in Figure 6 Verify that the UUT frequency reads between 39 8 Hz and 40 2 Hz Press ps 2 on the UUT to change the lower display to kHz Set the 5520A to source a 10 kHz 1 V peak to peak square wave Verify that the UUT frequency reads between 9 98 kHz and 10 02 kHz Press STBY on the 5520A NORMAL AUX SCOPE Warning A V 0 4 RTD A 0 SENSE AUX V 30 V maximum to d 30V MAX ALL TERMINALS N SOURCE MEASURE MAX GROUNDED 18 20V PK MAX TC 20V PK MAX N al aal04f eps Figure 6 Lower Display Frequency Test Connections Multifunction Process Calibrator Performance Tesis Lower Display Frequency Source Test 1 2 3 4 3 Press Gi on the UUT until SOURCE appears on the lower display Press 2 9 on the UUT until Hz appears on the lower display Conf
16. USIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY 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 To register your product online visit register fluke com Table of Contents WounnfesPM ate RUA Read First Safety Information essen Nub EXx Hazardous Areds iue rhe EH EC e HEP gedet testa aed e Tee DC Voltage Measurement sess DC e Millivolt Measurement and Source essen DC mA Measurement and Source Ohms Measurement ioter tart ERI EUER RHONE ERE eR RENE IO EE Frequency Measuretrnent i isreecte tarte i vere tre eet IPLE ee ERER deed EE Frequen
17. ation procedures List of replaceable parts For complete operating instructions refer to the appropriate Users Manual located on the CD ROM shipped with the instrument ACaution The Calibrator contains parts that can be damaged by static discharge No procedure in this document requires the case to be opened If the case is opened follow the standard practices for handling static sensitive devices To contact Fluke call one of the following telephone numbers Technical Support USA 1 800 44 FLUKE 1 800 443 5853 Calibration Repair USA 1 888 99 FLUKE 1 888 993 5853 Canada 1 800 36 FLUKE 1 800 363 5853 Europe 31 402 675 200 Japan 81 3 3434 0181 Singapore 65 738 5655 Anywhere in the world 1 425 446 5500 Or visit Fluke s website at www fluke com To register your product visit http register fluke com To view print or download the latest manual supplement visit http us fluke com usen support manuals 725Ex Calibration Manual Read First Safety Information In this calibration manual 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 test instruments A Warning To avoid electric shock injury damage to the Calibrator or ignition of an explosive atmosphere follow all equipment safety procedures Use the Calibrator only as described in this manual the 725Ex Users Manual an
18. batteries then install new batteries Be sure to follow the polarity markings shown in the battery compartment 4 Replace the battery door and secure it Multifunction Process Calibrator Required Equipment Required Equipment Equipment and software required to perform the procedures in this manual are identified in Table 3 If the recommended equipment model is not available other equipment can be substituted 1f it meets the specifications indicated A Warning To avoid safety hazards and equipment damage during the calibration procedures use the specified calibration equipment listed in Table 3 Using unspecified equipment can give unreliable results and pose safety hazards Table 3 Required Equipment and Software Equipment Minimum Specifications Recommended Model Multi Product Calibrator DC voltage 0 V to 30 V Fluke Model 5520A Multi Product Accuracy 0 005 Calibrator only DC current 0 mA to 24 mA Accuracy 0 005 Temperature Type J thermocouple 90 day accuracy 0 2 C Resistance accuracy 0 006 Frequency accuracy 0 01 MET CAL Metrology Version 6 0 or later Contact Fluke for the latest version Software see MET CAL Installation and Upgrade Guide for minimum hardware requirements Digital Multimeter DC voltage 0 V to 24 V HP 3458A only no substitute Accuracy 0 0013 DC voltage 0 mA to 24 mA Accuracy 0 005 Pressure Module In working condition for establis
19. compensation off Make the connections shown in Figure 9 4 Setthe 5520A to source the resistance values in Table 11 and verify that the UUT temperature readings are within the limits shown for the 3 wire readings 5 Press STBY on the 5520A NORMAL AUX V 0 RTD A O SENSE AUX V Warning A 30 V maximum to SOURCE MEASURE A NOT GROUNDED 20V PK MAX TC 20V PK MAX N L 5520A aaltOf eps Figure 9 Lower Display 3 Wire Resistance Test Connections 22 Multifunction Process Calibrator Performance Tesis Lower Display Thermocouple Measurement Tests 1 Remove the test leads from the UUT terminals then connect a type J thermocouple lead between the TC jack on the UUT and the TC jack on the 5520A as shown in Figure 10 2 Press on the UUT until J appears on the lower display If necessary press so the temperature is displayed in C 3 Set the 5520A to output the type J thermocouple voltages shown in Table 12 and verify the UUT temperature readings are within the limits shown values use the ITS 90 curves 4 Press STBY on the 5520A NORMAL AUX O RTD A O SENSE AUX V Warning A al 30 V maximum to 30V MAX ALL TERMINAL S Ai SOURCE MEASURE mA v du O 0 R Hz RTD OO TC Miniplug 5520A aal11f eps Figure 10 Lower Display Thermocouple Test Connections Table 12 Type J Thermocouple Readings 5520A Settings referenc
20. cy SQULCE zi etae tg pe e et id be RE PUR ial Ores TR HP EAE Temperature Thermocouples cccccccccsesssecsseceeceseceseceseenseeneeeseeeseeeseneenaes Loop Power Supply sete sen candace cea eee be etd necne ere e ER ara eub eacus Entity Paratneters eee eee da Spree Ce Re dea EEGENEN RTD Excitation simulation essent enn Temperature RTD Ranges and Accuraces t Pressure Measurement erre iege eee meretur ke deo enun tea ER Eau ea aae General Specifications tees esee itae neenon eia prn Eae B sic Maint nance ote open iod o P POE Gaeta M Doer Ae ele diede Cleaning the Calibrator etse toten intentio ih po rre daas Approved Batteries ice eee cen ENEE Eee eu ERR aH RE eR ERA EN EUER Replacing the Batteries esito deavenoaddesseasdenssesiabtanreaddasanedetts Required Equipment EE Performance RE Preparing for the Performance Tests sssssssseseseeeeeneen Upper Display Voltage Measurement Tests Lower Display mV Measurement Tests Lower Display Voltage Measurement Tests Upper Display mA Measurement Tests Lower Display mA Measurement Tests Lower Display Frequency Measurement Test Lower Display Frequency Source Test Lower Display 4 Wire Resistance Measurement Tests Lower Display 4 Wire RTD Measurement sees Lower Display 3 Wire RTD Measurement sese Lower Display Thermocouple Measurement Tests Lower Display Thermocouple Source Tests Lower Display mA Source T
21. d the Fluke 725Ex CCD Concept Control Drawing or the protection provided by the Calibrator may be impaired Inspect the Calibrator before use Do not use it if it appears damaged Check the test leads for continuity damaged insulation or exposed metal Replace damaged test leads When using probes keep fingers behind the finger guards on the probes Never apply more than 30 0 V between the input terminals or between any terminal and earth ground Applying more than 30 0 V to the input terminals invalidates the Calibrator s Ex Approval and may result in permanent damage to the unit so it can no longer be used Use the proper terminals mode and range for the measuring or sourcing application To prevent damage to the unit under test be sure the Calibrator is in the correct mode before connecting the test leads When making connections connect the COM test probe before the live test probe When disconnecting disconnect the live probe before the COM probe Never open the Calibrator case Opening the case invalidates the Calibrator s Ex Approval Make sure the battery door is closed and latched before entering an Ex hazardous area or using the Calibrator See Ex Hazardous Areas Replace the batteries as soon as the low battery symbol appears to avoid false readings that can lead to electric shock Remove the Calibrator from the Ex hazardous area before opening the battery door See Ex Hazardous Areas Re
22. e Excitation by RTD type Ni 120 0 15 to 3 0 mA Pt 100 385 0 15 to 3 0 mA Pt 100 3926 0 15 to 3 0 mA Pt 100 3916 0 15 to 3 0 mA Pt 200 385 0 05 to 0 80 mA Pt 500 385 0 05 to 0 80 mA Pt 1000 385 0 05 to 0 40 mA 725Ex Calibration Manual Temperature RTD Ranges and Accuracies d Measure 4 Measure 2 200 to 250 0 2 0 3 0 2 200 to 500 0 3 0 6 0 3 200 to 100 0 2 0 4 0 2 Resolution 0 1 C 0 1 F 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 Pressure Measurement range Leger Lee ums Determined by 5 digits Determined by psi inH20 94 C inH20 20 C pressure module pressure module inH20 60 F kPa cmH20 4 C cmH20 20 C bar mbar kg cm mmHg inHg General Specifications Conton feet JS S Relative Humidity 90 10 to 30 C RH operating without 75 30 to 40 C condensation 45 40 to 50 C 35 50 to 55 C uncontrolled lt 10 C Product Compliance Markings CE Il 1 G EEx ia IIB 171 C 0344 MA 04ATEX1303 Class I Div 1 Groups B C and D LR110460 Class Zone 0 Aex Ex ia IIB 171 C 2004 1573226 Ta 2 10 C 55 C Manufactured by Martel Electronics Inc 1F Commons Drive Londonderry NH USA Cse sexmokemmGuxTOki OOO wem eem bre S static awareness A Message From
23. e UUT outputs to the currents in Table 16 and verify that the HP 3458A readings are within the limits shown A lower voltage range on the HP 3458A may be used to verify the 0 V range Table 16 Lower Display Voltage Source Readings UUT Outputs HP 3458A Readings 0 000 V 0 002 V to 0 002 V 5 000 V 4 9970 V to 5 0030 V 10 000 V 9 9960 V to 10 0040 V 26 Multifunction Process Calibrator Performance Tesis Lower Display Ohms Source Tests 1 Press on the UUT until appears on the lower display If necessary press E until SOURCE appears on the lower display il 2 Set the HP 3458A to measure 4 wire resistance Make the connections shown in Figure 12 4 Usethe arrow keys on the UUT to set the UUT output to the resistance values in Table 17 and verify that the HP 3458A readings are within the limits shown Warning A zd 30 V maximum to 30V MAX ALL TERMINALS N SS de lt TC P 2 D o O HP3458 aal13f eps Figure 12 Lower Display Ohms Source Test Connections Table 17 Lower Display Ohms Source Readings UUT Settings HP 3458A Readings 15 0 Q 14 9 Q to 15 1 Q 360 0 Q 359 9 Q to 360 1 Q 1500 Q 1499 5 Q to 1500 5 Q 3200 Q 3199 0 Q to 3201 0 Q 27 725Ex Calibration Manual Pressure Module Input 1 Connect a Fluke 700 Series Pressure Module to the 5 pin LEMO connector at the top of the UUT then press L amp J 2 Verify that the display first sho
24. e 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 the measurement or sourcing application Symbols Symbols used on the Calibrator and in this manual are explained in Table 1 Table 1 Symbols OO Power ON OFF Double insulated insulated ae to relevant Canadian and 4 Earth ground US Standards Certification GR LR110460 2 Risk of Danger Important CE Conforms to relevant European EE Refer to manual Union directives 9 Conforms to ATEX requirements Conforms to relevant Australian standards e Do not dispose of this product as unsorted municipal waste Go to Fluke s website for recycling information 725Ex Calibration Manual Ex Hazardous Areas An Ex hazardous area as used in this manual refers to an area made hazardous by the potential presence of flammable or explosive vapors These areas are also referred to as hazardous locations see NFPA 70 Article 500 or CSA C22 1 Section 18 The Model 725Ex Multifunction Calibrator has been designed for use in Ex hazardous areas These are areas where potentially flammable or explosive vapors may occur These areas are referred to as hazardous classified locations in the United States as Hazardous Locations in Canada as Potentially Explosive Atmospheres in Europe and as Explosive Gas Atmospheres by most of the re
25. ed to 0 C UUT Readings 180 0 C 7 403 mV 179 0 C to 181 0 C 0 0 C 0 000 mV 0 7 C to 40 7 C 750 0 C 42 281 mV 749 3 C to 750 7 C 23 725Ex Calibration Manual Lower Display Thermocouple Source Tests 1 Set the 5520A to measure type J thermocouple voltages 2 Press ei on the UUT until SOURCE appears on the lower display If necessary press on the UUT until J appears on the lower display and press so the temperature is displayed in C 3 Use the arrow keys to set the UUT outputs to the temperatures in Table 13 and verify that the 5520A temperature readings are within the limits shown 4 Press STBY on the 5520A Remove the TC lead from the 5520A and the UUT Table 13 Lower Display Thermocouple Source Readings UUT Settings 5520A Readings referenced to 0 C 180 0 C 179 0 C to 181 0 C 750 0 C 749 3 C to 750 7 C 24 Multifunction Process Calibrator Performance Tesis Lower Display mA Source Tests l1 Press E on the UUT until SOURCE appears on the lower display then press ee until mA appears on the lower display If necessary press el until SOURCE appears on the lower display 2 Set the HP 3458A to measure dc current Connect the UUT and the HP 3458A as shown in Figure 11 4 Usethe arrow keys on the UUT to set the UUT to the currents in Table 14 and verify that the HP 3458A readings are within the limits shown Warning
26. ests 725Ex Calibration Manual Lower Display mV Source Tests Lower Display Voltage Source Tests Lower Display Ohms Source Tests Pressure Module Inp t etre tesa teretes cete eet ee xen regat annie Calibration Adjustment Procedures sss S EM Initiating Communication essere nere Cal Volts Input EE Cal Volts Ru EE Call mA e Cal MA Output P Cal V Inputs C EE E SEERE REKENEN EEN a KSE E EE Cal mV ELE Cal Thermocouples 3 5 etti coud tea aa aN arduo eee duds Cal Ohins Hi SOULE rere re tet deiere eeh Cal Olims Low SOUEICE iere enr teen es Re ex RR Co bx Eee dede EES Cal RTD LOW Ram ge tete eene nie rne brat rdc re EENS Cal RTD HI Range oeur snae aste eege RUE NN RS Cal TSOP OMS P Table SO OOS ON Or OX E ES List of Tables iii 725Ex Calibration Manual List of Figures Figure Title Page 1 Replacing the Batteries nennen ens 2 Upper Display Voltage Test Connechons 3 Lower Display mV and Voltage Test Connections essere 4 Upper Display mA Test Connecpons steets stestesteseseesseseeseesne 5 Lower Display mA Test Connections nns 6 Lower Display Frequency Test Connections sse Jg Lower Display Frequency Source Test Connections ssseeeeee 8 Lower Display 4 Wire Resistance Test Connectong sese 9 Lower Display 3 Wire Resistance Test Connections ccccccsceesseestee
27. hing Fluke 700PXX Series communication only Test Leads Two sets of stackable banana test 2 red leads Fluke PN 105809 leads 2 black leads Fluke PN 105806 Thermocouple test lead 2 type J male miniplugs with 12 Fluke Model 80CJ M male miniplugs 30 5 cm of 20 gauge type J package of two thermocouple wire 20 gauge type J thermocouple wire is available through an electronic supply outlet Personal computer Windows 3 1 or later with terminal 486 or later IBM compatible communication software PC interface cable Fluke 700SC serial interface cable Fluke PN 667425 assembly LEMO to DB 9 female Calibration cable Fluke 724 725Ex Calibration Cable Fluke PN 1556747 700SC Serial Cable Fluke PN 667425 11 725Ex Calibration Manual Performance Tests A AA Warning Some of the performance tests involve the use of high voltages and should be performed by qualified personnel only To avoid electric shock always set the calibration source 5520A to Standby STBY mode between tests and before handling the test connections or test cables Performance tests confirm the complete operability of the Calibrator and check the accuracy of each function against the Calibrator s specifications Note If the Calibrator fails any performance test it needs calibration adjustments If the Calibrator continues to fail after calibration adjustments send it to an authorized Fluke Service Center for repair The Calibrator
28. ibration Connections From the Calibration Menu enter the cal step for Cal mA Output The PC displays Zero into DAC Enter mA displayed Set the HP 3458 to read DC current Be sure the NPLC on the HP 3458 is slow enough to get stable readings to four decimal places When the reading on the HP 3458 has stabilized enter the value in milliamps on the PC then press Enter It is only necessary to enter four places past the decimal point It is not necessary to enter the units mA Wait for the following prompt on the PC Max value into DAC Enter mA value displayed Enter the current reading from the HP 3458 in the PC then press Enter After a short while the following calibration constants and new prompt are displayed on the PC 1 628906 24 735999 0 076400 65279 00 mA per count 1 628906 press space bar to continue Press the space bar to return to the Calibration Menu 33 725Ex Calibration Manual Cal mV Input 34 Connect the UUT as shown in Figure 17 E NORMAL AUX SCOPE Warning A V 0 4 RTD A SENSE AUX V A 30 V maximum to i a i CO RMS RMS MAX LO 30V MAX ALL TERMINALS N SOURCE MEASURE MEASURE V mA GROUNDED 20V PK MAX TC 20V PK MAX N ES 5520A aal04f eps Figure 17 mV Input Calibration Connections From the Calibration Menu type the number or letter for Cal mV Input The PC displays Enter 0 mV press space bar to conti
29. igure the HP 3458A to measure frequency Make the connections shown in Figure 7 Use the arrow keys on the UUT to set the UUT output to the frequencies in Table 9 and verify that the HP 3458A readings are within the limits shown Use 22 to change the UUT output to kilohertz when necessary Press ei on the UUT to disable the sourcing function Warning A L 30 V maximum to 30V MAX ALL TERMINALS N RIRCE MEASURE MEASURE v mA lt HP3458 aal08f eps Figure 7 Lower Display Frequency Source Test Connections Table 9 Lower Display Frequency Source Readings UUT Outputs HP 3458A Readings 1000 Hz 999 5 Hz to 1000 5 Hz 1 0 kHz 997 5 Hz to 1002 5 Hz 4 0 kHz 3 990 Hz to 4 010 kHz 10 0 kHz 9 975 Hz to 10 025 kHz 19 725Ex Calibration Manual Lower Display 4 Wire Resistance Measurement Tests 1 Press on the UUT until Q appears on the lower display If necessary use Gi to get to the measure mode and use to get to the 4W mode MEASURE should also appear on the lower display 2 Setthe 5520A to 2 wire output with 2 wire compensation off Make the connections shown in Figure 8 4 Setthe 5520A to source the resistance values in Table 10 and verify that the UUT resistance readings are within the limits shown 5 Press STBY on the 5520A Warning A 30 V maximum to c SCOPE OUT MA 150V Cis SHELLS N 20V PK MAX TC 20V PK MAX N BR a
30. move test leads from the Calibrator before opening the battery door Measurement Category CAT I is defined for measurements performed on circuits not directly connected to the mains Turn off circuit power before connecting the Calibrator mA and COM terminals in the circuit Place the Calibrator in series with the circuit Multifunction Process Calibrator Symbols e When servicing the Calibrator use only specified replacement parts Do not open the Calibrator case Opening the case invalidates the Calibrator s Ex Approval e Do not allow water inside the case e Before each use verify the Calibrator s operation by measuring a known voltage e Never touch the probe to a voltage source when the test leads are plugged into the current terminals e Do not operate the Calibrator around explosive dust e When using a pressure module make sure the process pressure line is shut off and depressurized before connecting it or disconnecting it from the pressure module e Use four properly installed AA batteries to power the Calibrator e Use only the batteries listed in Table 2 e Disconnect test leads from the circuit under test before changing to another measure or source function e Care must be taken to minimize the possibility of leakage when measuring the pressure of toxic or flammable gases Confirm that all pressure connections are properly sealed e Do not use in a damp or wet environment A Caution To avoid possibl
31. nance 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 A 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 Do not use aromatic hydrocarbons chlorinated solvents or methanol based fluids when cleaning the Calibrator Approved Batteries Table 2 Approved Batteries Battery Manufacturer All Batteries Alkaline AA 1 5 V Type Duracell MN1500 Eveready Energizer E91 Panasonic Powerline LR6A Rayovac 815 Varta 4906 Ucar Gold LR6 Replacing the Batteries A Warning e To avoid false readings which could lead to possible electric shock or personal injury replace the batteries as soon as the battery indicator E appears e Remove the Calibrator from the Ex hazardous area before opening the battery door See Ex Hazardous Areas e Use four properly installed AA batteries to power the Calibrator e Use only the batteries listed in Table 2 Four AA alkaline batteries are used to power the Calibrator Use the following procedure to replace the batteries see Figure 1 and Table 2 1 Turn the Calibrator off remove the test leads from the terminals and hold the Calibrator face down 2 Using a Hex Key remove the battery door Remove the
32. nue Set the Fluke 5520A to output 0 000 mV let the output settle then press the space bar on the PC After a short while the PC displays the following calibration constant and new prompt Offset 714 Enter 90 00 mV press space bar to continue Set the Fluke 5520A to output 90 000 mV let the output settle then press the space bar on the PC After a short while the PC displays the following calibration constants and new prompt diff Counts Offset 7513104 7512390 714 mV per count 0 000012 press space bar to continue Press the space bar to return to the Calibration Menu Multifunction Process Calibrator Calibration Adjustment Procedures Cal mV Output Connect the UUT as shown in Figure 18 Warning A 30 V maximum to 30V MAX ALL TERMINALS N RIRCE MEASURE de GUARD Il UUT HP3458 aal08f eps Figure 18 mV Output Calibration Connections From the Calibration Menu enter the cal step for Cal mV Output The PC displays Zero into DAC Enter mV displayed Set the HP 3458 to read V DC Be sure the NPLC on the HP 3458 is slow enough to get stable readings to three decimal places When the reading on the HP 3458 has stabilized enter the value in millivolts on the PC then press Enter It is only necessary to enter four places past the decimal point It is not necessary to enter the units mV After a short while the PC displays Max value into DAC Enter mV
33. r on the intrinsic safety barrier ratings or on the Calibrator ratings for the specific terminals used As an example Fluke 725Ex CCD explains that the capacitance of each unit connected in the circuit Ci plus the capacitance of the cable in the circuit must not exceed the maximum allowed capacitance Ca Similarly for inductance in the intrinsically safe circuit When connecting the Calibrator into a powered circuit i e when the circuit is powered by an intrinsic safety barrier then the maximum circuit voltage used for the entity parameter evaluation will be the higher of either the Calibrator Voc or of the barrier Voc The maximum current will be the sum of the Calibrator Isc and the barrier Isc In this case the maximum allowed inductance La will be reduced This value will have to be determined using the ignition curves found in standards such as CSA C22 2 No 157 or UL 913 For additional information about Ex hazardous areas refer to ANSI ISA 12 01 01 1999 Definitions and Information Pertaining to Electrical Instruments in Hazardous Classified Locations and to ANSI ISA RP12 06 01 2003 Recommended Practice for Wiring Methods for Hazardous Classified Locations Instrumentation Part 1 Intrinsic Safety Multifunction Process Calibrator Specifications Specifications All specifications apply from 18 C to 28 C unless stated otherwise All specifications assume a five minute warmup period DC Voltage Measurement Accurac
34. s follows e Bits per second 9600 e Data bits 8 e Parity None e Stop bits 1 e Flow control None e Local echo on Multifunction Process Calibrator Calibration Adjustment Procedures Initiating Communication Starting with the UUT off push and hold while turning the UUT on Continue to hold until Cal mode is displayed The calibration menus as seen on the PC Screen are as follows 725Ex Calibration Menu Calibrate Menu 1 Cal Volts Input Cal Volts Output Cal mA Input Cal mA Output Cal mV Input Cal mV Output Cal Thermocouples 1 Ohms Hi Source Cal Ohms Low Source Cal RTD LOW Range Cal RTD HI Range Cal ISO Volts Cal ISO mA Dom D wo o A Oo 0 5 UN I Q w Enter Selection To begin calibration type the cal step letter or number then press Enter It is not necessary to run all of the calibration steps when in the calibration mode When calibrating thermocouples mV Input and mV Output must be calibrated first At the end of each step on the calibration menu the new calibration constants for that step are saved but not actually used until power is recycled When calibrating a measurement function an input signal must first be entered When the signal is connected and stable press the space bar to start the adjustment Usually the UUT will display a calibration constant then prompt for a second input value Apply the new input value then press the space bar After the adjustmen
35. s performance and accuracy are specified for one year after calibration at operating temperatures of 18 C to 28 C 64 F to 82 F in relative humidity to 90 The specifications assume the Calibrator has been warmed up for five minutes before use It is not necessary to open the case for the performance tests no mechanical adjustments are necessary Merely make the required connections source the designated values and determine if the reading on the Calibrator or the multimeter falls within the acceptable range indicated Preparing for the Performance Tests 12 Performance tests for the Calibrator can be performed manually or they can be computer automated using Fluke Metrology Software The Metrology Software automates all of the performance verification tasks except for connection of the standards to the Calibrator This document provides the procedures necessary for manual performance tests Contact Fluke for information on Metrology Software These performance tests assume that the person performing them knows how to use the Calibrator and the required equipment Do not attempt to perform these tests unless qualified to do so Throughout the performance tests UUT unit under test refers to the Calibrator the word multimeter is reserved for the digital multimeter identified in the required equipment listed in Table 3 Unless otherwise indicated all connection diagrams for the verification tests in this
36. st of the world The Calibrator is designed as intrinsically safe This means that connecting the Calibrator to equipment that is used within intrinsically safe circuits will not cause an ignition capable arc as long as the entity parameters are suitably matched The Calibrator has two sets of parameters The Vmax and Imax parameters show the maximum voltage and maximum current that may be connected to the Calibrator terminals without compromising the intrinsic safety The voltage and current will generally come from intrinsic safety barriers that provide power to the field equipment such as transmitters and positioners I P devices These barriers are identified with a maximum open circuit voltage parameter Voc and a maximum short circuit current parameter Isc The matching criterion requires that Voc of the barrier not exceed 30 V and Isc not exceed 100 mA The Calibrator will itself be a source of voltage and current Each set of terminals has a Voc and an Isc rating as shown on Fluke 725Ex CCD When connecting terminals to other equipment the Vmax and Imax ratings on the other equipment must exceed the Voc and Isc ratings for the terminals connected to on the 725Ex Calibrator In addition to matching voltage and current entity parameters it is also necessary to verify that capacitance and inductance has not been exceeded Again Fluke 725Ex CCD identifies the maximum capacitance Ca and maximum inductance La that is permitted based eithe
37. t is complete press the space bar to return to the Calibration Menu When calibrating a source function the value of a reading must be entered Type in the numerical value of the calibration desired This will put the UUT into the desired calibration mode When entering the calibration data for any source mode calibration be sure to enter the value in the units listed but don t enter the units mV mA etc After the adjustment is complete press the space bar to return to Calibration Menu The calibration values will vary slightly unit to unit The constants used in this procedure may not appear exactly the same as on your UUT but they should be approximately the same 29 725Ex Calibration Manual Cal Volts Input Connect the UUT as shown in Figure 13 S NORMAL AUX SCOPE Warning A V 0 4 RATD A Q SENSE AUX V 30 V maximum to d 30V MAX ALL TERMINALS N SOURCE MEASURE MEASURE MAX GROUNDED 20V PK MAX TC 20V PK MAX N 4 4 5520A aal04f eps Figure 13 Volts Input Calibration Connections From the Calibration Menu type the cal step for Cal Volts Input The PC displays Enter 0 Volts press space bar to continue Set the Fluke 5520A to output 0 0000 V then press the space bar After a short while the following calibration constant and prompt are displayed on the PC Offset 40 Enter 10 00 Volts press space bar to continue Set the Fluke 5520A to output 10 0
38. ter a short while the PC displays Max value into DAC Enter Ohms value displayed Enter the resistance reading from the HP 3458 in the PC then press Enter After a short while the PC displays the following calibration constants and new prompt Gain 0 006910 y intercept 57 451 459980 17 670000 65279 00 press space bar to continue Press the space bar to return to the Calibration menu Multifunction Process Calibrator Calibration Adjustment Procedures Cal RTD Low Range Connect the UUT as shown in Figure 21 Warning A 30 V maximum to c SHELLS NOT GROUNDED N 20V PK MAX TC 20vPK MAX l B 5520A aal09f eps Figure 21 RTD Low Range Calibration Connections From the Calibration Menu enter the cal step for Cal RTD Low Range The PC displays Apply 15 ohms to 4 wire jacks press space bar to continue Set the Fluke 5520A to output 15 00 Ohms 2 wire output with 2 wire comp off then press the space bar on the PC After a short while the PC displays Apply 350 ohms to 4 wire jacks press space bar to continue Set the Fluke 5520A to output 350 00 Ohms then press the space bar on the PC After a short while the Calibrator will return to the Calibration Menu 39 725Ex Calibration Manual Cal RTD Hi Range The UUT connection is the same as Cal RTD Low Range it is shown in Figure 21 From the Calibration Menu enter the cal step for Cal RTD Hi Range The PC displays
39. the space bar to return to the Calibration Menu 31 725Ex Calibration Manual Cal mA Input Connect the UUT as shown in Figure 15 NORMAL AUX V 9 RTD A O SENSE AUX V Warning A 30 V maximum to 150V C15 30V MAX ALL TERMINALS N SOURCE MEASURE MAX GROUNDED Oe e LI 20V PK MAX 20V PK MAX N 4 aal06f eps Figure 15 mA Input Calibration Connections From the Calibration Menu type the cal step for Cal mA Input The PC displays Enter 0 ma press space bar to continue Set the Fluke 5520A to output 0 000 mA let the reading settle a few seconds then press the space bar on the PC After a short while the PC displays the following calibration constant and new prompt Offset 337 Enter 24 00 ma press space bar to continue Set the Fluke 5520A to output 24 000 mA let the reading settle a few seconds then press the space bar on the PC After a short while the UUT displays the following calibration constants and new prompt diff Counts Offset 8106924 8106587 337 mA per count 0 000003 press space bar to continue Press the space bar to return to the Calibration Menu 32 Multifunction Process Calibrator Calibration Adjustment Procedures Cal mA Output Connect the UUT as shown in Figure 16 Warning A 30 V maximum to 30V MAX ALL TERMINALS AN SS o ele ORE X9 HP3458 aal12f eps Figure 16 mA Output Cal
40. tteesteeeeeees 10 Lower Display Thermocouple Test Connecttons 11 Lower Display mA Source Test 12 Lower Display Ohms Source Test Connectons ne 13 Volts Input Calibration Connections sss 14 Volts Output Calibration Connections essere 15 mA Input Calibration Connections esssssssseeeeeee ene 16 mA Output Calibration Connections eene 17 mV Input Calibration Connections nennen 18 mV Output Calibration Connections essere 19 Thermocouples Calibration Connections cccccccsseessecsteceteceeceeeseeeneeeeeeeeeeeenaes 20 Ohms Hi Source Calibration Connections essen 21 RTD Low Range Calibration Connections sssssssssssesseseesseee sne sesreeseesesseesesets 22 ISO Volts Calibration Conmectons nne 23 ISO mA Calibration Connections ener enne 725Ex Calibration Manual vi Introduction A Warning The information provided in this manual is for the use of qualified personnel only Do not perform the verification tests or calibration procedures described in this manual unless qualified to do so This Calibration Manual provides the following information for the Fluke 725Ex Multifunction Process Calibrator also referred to as the Calibrator and or the UUT Safety information Specifications Static awareness Basic maintenance cleaning batteries and fuses Equipment required for performance tests and calibration Performance test procedures Calibr
41. value displayed Enter the mV reading from the HP 3458 on the PC press Enter then press the space bar After a short while the PC displays the following calibration constants and new prompt 6537 086487 111 874998 12 450000 65279 00 mV per count 6537 0864 87 press space bar to continue Press the space bar to return to the Calibration Menu 35 725Ex Calibration Manual Cal Thermocouples Connect the UUT as shown in Figure 19 NORMAL AUX V 0 RTD A O SENSE AUX V Warning AN i al 30 V maximum to 30V MAX ALL TERMINAL SOURCE MEASURE mA v d O 0 E Hz RTD mA SHELLS aw NOT GROUNDED TC Miniplug 5520A aal11f eps Figure 19 Thermocouples Calibration Connections From the Calibration Menu enter the cal step for Cal Thermocouples The PC displays Connect accurate T C source TYPE J thermocouple Simulate 0 0 degrees C press space bar to continue Set the Fluke 5520A to output 0 00 degrees C for a type J thermocouple using the ITS 90 standard then press the space bar on the PC After a short while the PC displays the following calibration constant and new prompt CJC Temp Read 27 359071 Type 2 CJC mV 1 400393 mV Read 1 260579 CJC 0 139814 cje type 3j 2 736758 press space bar to continue Press the space bar to return to the Calibration Menu 36 Multifunction Process Calibrator Calibration Adjustment Procedures
42. ws psi then changes to a pressure value 3 Disconnect the pressure module from the UUT The performance tests are now complete Disconnect and secure all test equipment Calibration Adjustment Procedures Setup 28 The 725Ex Calibrator has an electronic calibration There are no mechanical adjustments and the calibration 1s done case closed The calibration is done via a serial communications port by sending and receiving commands and readings For the serial port connection the 700SC Serial Interface Cable PN 667425 will be necessary This permits communication through the pressure port connection Throughout these procedures the 725Ex is referred to as the UUT Two methods of calibration are available for the UUT using a a serial based program via a PC see Table 3 for requirements and using a Met Cal calibration procedure This manual only describes the serial based PC program The automated Met Cal procedures are available from the Fluke Metrology Group For more information on the automated Met Cal procedures contact Fluke or visit the Fluke Web site at www fluke com Setup the PC and the UUT as follows Ensure that the terminal communications software is installed on the PC 2 Connect the interface cable to the appropriate connector on the UUT 3 Connect the 9 pin D connector to the PC serial port An adapter may be needed for PCs that use 25 pin D serial connectors 4 Verify the settings on the PC are a
43. y 30 V upper display 0 001 V 0 02 6 2 10 V lower display 0 001 V 0 02 2 Temperature coefficient 10 C to 18 C 28 C to 55 C 0 005 of range per C DC Voltage Source F Accuracy 100 mV 0 01 mV 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 Millivolt Measurement and Source 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 7e The signal is available at the thermocouple miniplug connector DC mA Measurement and Source Accuracy Temperature coefficient 10 C to 18 C 28 C to 55 C 0 005 of range per C Drive capability 250 O at 20 mA 725Ex Calibration Manual Ohms Measurement Accuracy Q eee O Eas e 0 1 0 to 400 2 400 to 1 5 kQ 0 5 1 0 1 5 to 3 2 kQ 1 Temperature coefficient 10 C to 18 C 28 C to 55 C 0 005 of range per C Excitation Current 0 2 mA Maximum input voltage 30 V 2 wire Does not include lead resistance 3 wire Assumes matched leads with a total resistance not exceeding 100 Q Ohms Source Ohms Hanse Excitation Current from Accuracy 3 Measurement Device to 15 to 400 Q 0 15 to 0 5 mA 15 to 400 Q 0 5 to 2 mA 400 to 1 5 kQ 0 05 to 0 8 mA 1 5 to 3 2 KQ 0 05 to 0 4 mA Temperature coefficient 1
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