5100 User`s Manual
Contents
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3. NA NAACSTRCOL Model 5100 Single Phase Power Analyzer User s Manual Rev B 02 01 INC Sales and Technical Assistance 70 Gardenville Parkway Buffalo New York 14224 USA Tel 716 668 5555 or 1 800 828 7844 Fax 716 668 8705 www magtrol com Manufacturers of Motor Test Equipment Hysteresis Brakes and Clutches While every precaution has been exercised in the compilation of this document Magtrol Inc assumes no responsibility for errors or omissions Additionally no liability is assumed for any damages that may result from the use of the information contained within this publication Trademark Acknowledgments GPIB PC is a trademark of National Instruments Corporation IBM is a registered trademark International Business Machines Corporation QuickBASIC is a registered trademark of Microsoft Corporation is a registered trademark of the General Electric Corporation FLUKE is a registered trademark of the John Fluke Mfg Company Microsoft is a registered trademark of the Microsoft Corporation Supercon is a registered trademark of the Superior Electric Company Table of Contents SALES AND TECHNICAL ASSISTANCE u ii TABLE OF REVISIONS 1 42 uuu uuu RR E nnn DS aa DR a RR S BR RE XX EA a DR E E RC X RE
4. 3 uuu SDS uuu uuu mnsa ass 3 Measurement unas atas ORG aaa Gak easy a he Y ERE besa esee 4 Accuracy eR Loi ote evo D HEU ttd kau rede 4 3 CONNECTING THE 5100 L nu cab as xar TI Tasa wawawa sawawawawawaswsawawanuwanauwia 5 Surge 5 Extermal SUNS 5 Figure 1 External Shunt Connection 5 5 single Phase AC or DC CONMECHONS eee ted Rer eet EH Te ERE 6 Figure 2 Single Phase AC or DC with Remote Voltage Sense eese enne 6 Three Phase 3 Wire Delta Connections 0604080000 aqawan asa tenere 6 Figure 3 Three Phase 3 Wire Delta 2 Wattmeter with Remote Voltage Sense 7 Three Phase 3 Wire Wye 2 Wattmeter Connections 7 Three Phase 4 Wire Wye 3 Wattmeter Connections eere nnns intentis 7 Figure 5 Three Phase 4 Wire Wye 3 Wattmeter with Remote Voltage Sense sss 7 Single Phase Current amp Potential Transformer Connections naa 8 Figur
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6. af L ui 1 lF Y 10 J5 F MAGTROL 788143 Rau D 26 Magtrol Limited Warranty Magtrol Inc warrants its products to be free from defects in material and workmanship under normal use and service for a period of one 1 year from the date of shipment Software is warranted to operate in accordance with its programmed instructions on appropriate Magtrol instruments This warranty extends only to the original purchaser and shall not apply to fuses computer media or any other product which in Magtrol s sole opinion has been subject to misuse alteration abuse or abnormal conditions of operation or shipping Magtrol s obligation under this warranty is limited to repair or replacement of a product which is returned to the factory within the warranty period and is determined upon examination by Magtrol to be defective If Magtrol determines that the defect or malfunction has been caused by misuse alteration abuse or abnormal conditions of operation or shipping Magtrol will repair the product and bill the purchaser for the reasonable cost of repair If the product is not covered by this warranty Magtrol will if requested by purchaser submit an estimate of the repair costs before work is started To obtain repair service under this warranty purchaser must forward the product tra
7. ABBREVIATIONS PA Model 5100 Power Analyzer GPIB IEEE 488 Instrument Bus Standard LED front panel indicator light W Volts Watts Power Factor and VA and Volt Amperes respectively MPU microprocessor unit LSD LSB least significant digit or bit CMRR common mode rejection ratio UNPACKING The Model 5100 is packed in reusable shock resistant packing material that will protect the instrument during normal handling In the event of shipping damage immediately notify the carrier and MAGTROL Customer Service Dept Save all shipping materials for reuse when returning the instrument for calibration or servicing POWER The 5100 PA is factory wired for either 120 or 240 Vrms 50 60 Hz power at 40 volt amps max The line cord is a detachable NEMA standard 3 wire which plugs into the rear access power entry and filter module of the 5100 PA The line cord must be detached from the PA during servicing NOTE The standard 5100 is factory wired for 120 Vrms power Wiring for 240 Vrms is available on special order FUSE REPLACEMENT Remove the line cord and carefully pry up and remove the fuse holder Use a 1 2 Amp slow blow fuse for 120 Vrms ora 1 4 Amp slow blow fuse for 240 Vrms power SAFETY SECURELY GROUND the 5100 PA case by connecting a good earth ground at the ground stud that is located on the rear panel Use a number 12 AWG or larger wire CONNECTORS Plugs that ma
8. Y ore SSS AMPS 23 ___ GND OUTPUT INPUT 7 NEUTRAL 477 EARTH CB MOV 59 cor Ivo MOV LOR Chapter 3 Connecting the 5100 Magtrol Model 5100 Single Phase Power Analyzer SINGLE PHASE CURRENT amp POTENTIAL TRANSFORMER CONNECTIONS Voltage and current measurement ranges can be extended by using current and potential transformers Frequency response will be determined by the characteristics of the transformers used The general discussion from Figure 2 applies Three phase lines can be measured by using the two or three wattmeter techniques previously illustrated Figure 6 Current amp Potential Transformer 5100 PA VOLTS HIGHO Single Phase EL Low AMPS OUTPUTO E EARTH LINE HIGH BLACK THREE PHASE 4 WIRE BALANCED LOAD 1 WATTMETER CONNECTIONS With a balanced load one wattmeter connected in one phase reads 1 3 of the total power consumed 3 x WATTMETER READING The general discussion from Figure 2 applies The three load impedances are equal for balanced loads Figure 7 Three Phase 4 Wire Wye Balanced Load 1 Wattmeter EARTH NEUTRAL THREE PHASE 3 WIRE BALANCED LOAD 1 WATTMETER CONNECTIONS WATTS ora 3 x WATTMETER READING An artificial neutral is formed by a star connection of three identical resistors R The value of these resistors should be high enough t
9. 1 5M BLK VOLTS U3 ILOW C Low Rs1 Rs2 LINE LOW WHT AMPS OUTPUT l l 5100 BURDEN U1 U2 U7 5 3M OHM CURRENT 2 5 10 20 AMP 0 011 OHM 50 AMP 0 001 OHM Magtrol Model 5100 Single Phase Power Analyzer Chapter 6 Operating Principles Figure 12 Block Diagram U8 U9 U10 t V F AMPS 1 2 2 OPTO INPUT gt Mns J 15 100Khz gt iso A 6 Abal Gai ACTIVE Uit JU ER es Vo XYCos Q B VF o 70 on 100Khz ISO WFo NVANVA bal cal U23 UM 5 U3 7 i VIF VOLTS E 2 5 INPUT 1 TN 2 iso MES M AK Vdc Vbal Gai DIGITAL PROCESSING Frequency proportional signals of AMPS VOLTS and WATTS and WEF respectively are integrated for a precise period of 0 1 seconds for digital conversion and processing via an eight bit microcomputer The MPU controls functions of range control auto zero calibration BCD conversion parameter display and GPIB transmission The MPU acquisition and conversion rate is 100 milliseconds 10 readings per second and the display updates at 500 milliseconds 2 updates per second The MPU scans all front panel pushbutton control inputs 25 times per second When a pushbutton is depressed the appropriate program loop is entered and the function is executed on the next program cycle No damage will result
10. 3 Connecting the 5100 Three Phase 3 Wire Delta 2 Wattmeter with Remote Voltage Sense Figure 3 5100 PA 5100 PA HIGHO LOWO 23 gt gt OUTPUTO Zb EARTH THREE PHASE 3 WIRE WYE 2 WATTMETER CONNECTIONS True power is the algebraic sum of the two wattmeter readings regardless of power factor and degree of load balance see NOTE for Figure 3 concerning power factors less than 0 5 Also the general discussion from Figure 2 applies Three Phase 3 Wire Wye 2 Wattmeter with Remote Voltage Sense Figure 4 5100 VOLTS LINE LOWO AMPS GND ourpur INPUT 2 77 EARTH 5100 PA VOLTS LOWO AMPS 98 GND OUTPUT INPUT 777 EARTH THREE PHASE 4 WIRE WYE 3 WATTMETER CONNECTIONS Three wattmeters are required for unbalanced loads Total power is the algebraic sum of the three wattmeter readings The general discussion from Figure 2 and the power factor discussion of Figure 3 applies Three Phase 4 Wire Wye 3 Wattmeter with Remote Voltage Sense Figure 5 wi 5100 PA VOLTS LINE LOWO AMPS GND OUTPUT INPUT 77 EARTH w2 5100 PA VOLTS HIGHO 4 MILI GND ourpur INPUT 77 EARTH ws 5100 PA VOLTS
11. 5100 to PC the 5100 expects the standard IEEE 488 read protocols and primary address Itresponds with a data string followed by a CR and LF This signals the end of a transmission Upon receipt of these characters the PC must be configured to terminate GPIB communications and proceed with its own program execution On a write cycle PC to 5100 the 5100 expects to receive 1 the PRIMARY ADDRESS 2 INSTRUCTIONAL DATA STRING 3 the TERMINATION CHARACTERS of CR and LF If Chapter 5 GPIB Communication Magtrol Model 5100 Single Phase Power Analyzer these characters are not forthcoming the 5100 has no way of knowing when to terminate handshaking reset the GPIB and continue with its program loop If omitted the only way to restore operation is to cycle power OFF ON or force a GPIB interface reset if available READ In read 5100 to PC command mode the 5100 will output a data string containing the information on the AMPS VOLTS and WATTS display The ASCII output format is A aa aaV vvv vW ww www lt CR gt lt LF gt aa aa is the CURRENT value as displayed on the AMPS display vvv v is the VOLTAGE value as displayed on the VOLTS display ww www is the WATTS value as displayed on the WATTS display The string length is always 24 characters Most PC s will require that the input string length be dimensioned If the 5100 is in PF power factor MODE instead of WATTS the W changes to P QUI
12. Chapter 2 of this manual MiNoR ADJUSTMENT IF NEEDED NOTE All trim pot adjustments are located on the 78B143 circuit board of the 5100 see Chapter 8 Schematics AN WARNING Lethal Voltages are Used VoLTS ZERO 1 Disable the autozero function refer to Special Functions under Chapter 5 Communication Go to the 5100 VOLTS range that needs zero adjustment Set the volts calibrator for zero volt DC output Adjust trim pot R16 for zero 0 0001 max VOLTS display reading This sets all voltage ranges all ranges should be zero 0 0001 of range full scale 5 ZERO 1 Disable the autozero function refer to Special Functions in Chapter 5 GPIB Communication Go to the 5100 AMPERES range s that need adjustment Set the current calibrator for zero amp DC output For the 2 5 10 and 20 amp ranges adjust trim pot Ro for zero AMPERES display indication For the 50 amp range adjust trim pot for zero AMPERES display indication Magtrol Model 5100 Single Phase Power Analyzer Chapter 7 Calibration 5 ScALE Factor 1 Go to the 5100 VOLTS range s that need adjustment Set the volts calibrator for an output equal to the range maximum voltage Adjust the trim pot s so the VOLTS display reads the full scale voltage as shown below For the 15 volt range adjust R 17 For the 30 volt range adjust For the 150 volt range adju
13. E B RR XX vi 1 INTRODUCTION U U U uuu uu 1 MM 1 1 1 FuseR plae ementu s uuu anp u 1 HR 1 SOMME CLOTS INI IM LE 1 Maximum ua S UOLUNT 1 m susu LIII IE 2 ORIENTATIONS NUS eR mE MEME M 2 ELECTRICAL LOAD T EA S E EASES ERE EREE T Ee ES 2 IEBE 488 GPIB sees tesa osha cota daa Samana nu huuu 2 Imitial Check060t 2 Transient Overloads e teh 2 Current Overload e ___ __ 2 2 SPECIFICATIONS EM 3 burst 3 juod MT LEE 3 Meter Impedance E M 3 o T cs 3 TSO a a au T 3 Display Auto Zero E 3 3 as qas 3 ANALOG ani
14. and 2 Amp DC output Adjust trim pot R4s for 300 00 WATTS display reading Confirm AC measurement accuracy by setting the calibrators for 150 VRMS and 2 Amps RMS at 60 Hz The WATTS display should read close to 300 00 watts and be within the specification accuracy See Accuracy Specifications in Chapter 2 Specifications NOTE Adjust current calibrator s phase shift control for zero phase angle between volts and amps peak the watts indication see Calibration Verification step 3 for AC Appendix Schematics CIRCUIT BOARD 78 128 LED DISPLAY S s x 2 bu sr le SUD Ce r e e 2 S m CA lt 5 z N a ers 46 m S 5 AU Q H 9 peg E e 5 8 258 Ges e 289 2 S a 4 EX 0 9 p J 077p 2p 5 5 eco MS E dp ood I 2 efa s 9 d 2 s gt poa j B ea 5 E io ers le 5 lt mL 2 a i ols SUD CEN o e a sls slo SUD 0 0 8 lt 2 S e
15. be off if used with a different 5100 Sense leads to shunt should not be disconnected or calibration will be off Shunt must be sent back with 5100 for recalibration CONNECTORS Use the supplied Supercon connectors AMPS INPUT PLUG WHITE FEMALE PSSOGWT OUTPUT PLUG WHITE MALE PP50GWT VOLTS HIGH PLUG BLACK FEMALE PS25GB LOW PLUG WHITE FEMALE PS25GWT Black White Chapter 3 Connecting the 5100 Magtrol Model 5100 Single Phase Power Analyzer SINGLE PHASE AC OR DC CONNECTIONS This circuit utilizes the 5100 PA REMOTE VOLTAGE SENSE feature by measuring the voltage at the load This increases measurement accuracy by eliminating line voltage drop from the power measurement For safety an overload circuit breaker CB removes all load voltage during an over current condition Make sure that connections from the remote voltage sense lines are connected very close to the circuit breaker and the lines from the breaker to load are as short as possible A CAUTION If a circuit breaker is used in the input line to the 5100 PA a circuit should be used that prevents the breaker from opening until after the load side breaker has operated Otherwise potentially damaging inductive transients will be applied to the 5100 PA Damage caused by these transients are outside the scope of the MAGTROL WARRANTY For voltage sense lines less than 25 feet in length a twisted pair of 20 gauge o
16. frequency effect is experienced between the calibrator output and the 60 Hz power line frequency try setting the calibrator for 80 Hz instead of 60 Hz 2 Setthe current calibrator to standby mode Watts CALIBRATION CHECK This step calls for the simultaneous application of voltage and current to the 5100 PA DC 1 On the 5100 select a VOLTS and AMPERES range 2 Set the volts and current calibrators for a voltage and current near the center of each selected range 3 Switch the CALIBRATORS to operate mode The WATTS readout should show a power that is the product of the VOLTS and AMPS indications POWER V x I 4 Compare the 5100 PA WATTS readout to the product of VOLTS and AMPS from the CALIBRATORS output This difference is the WATTS error AC POWER V x I x Cos where 0 phase angle between volts and amps NOTE maximum true power is delivered only when 0 zero degrees cos 1 Therefore the volts calibrator variable phase adjustment is set for zero phase between the volts and amps at the input to the 5100 PA Refer to the calibrator instruction manuals for this adjustment procedure The phase shift control should be carefully set to provide peak 5100 PA WATTS indication this corresponds to zero volts to amps phase angle Repeat the procedure as used for the DC power verification and record readings Compare the recorded reading to the 5100 PA ACCURACY SPECIFICATIONS in
17. oO 09090 8998899 S828 e 8 o 9 9 f noo lv oF o 1 5 sd 7 s len SDH mo 5 o _ sols noo i HV Sol aroos Z tern NI NH N vr T 77 8 _ apr zen 125 sit st i 290 HH Sl o M o Sh su 298 vn born 1 n gr iuo 2 2 t puo 9 St 09 615 i409 t 458 199M 9 tr tr Ni NE X NH JL 854 JL 9E Sito A Leno en 9nd 937 MUR reat d oj 50 5 Woo S440 91 Woo 2 9 97 gr erin z Ni NEA N _ evH en sie st leg suuy PLHD U Quiosy Ozzy 23 Appendix A Schematics Magtrol Model 5100 Single Phase Power Analyzer CIRCUIT BOARD 78B144
18. to the 5100 PA from any combination of pushbutton selections Inthe AVG MODE averaging the 5100 PA integrates the 10 data readings per second AMPS VOLTS and WATTS and then samples the averaged value for display As the sampled readings accumulate the changing display digits will steady down to provide a stable measurement of true power computed from average VOLTS and AMPS This technique works well when the displayed digits are changing too fast to be recognized resulting from changing power consumption 7 Calibration GENERAL Complete calibration of the 5100 PA is beyond the capabilities of most users MAGTROL Inc recommends that the 5100 PA should be returned to the factory for calibration certifying the instrument to full specifications NOTE breaking the factory CAL VOID sticker voids the MAGTROL WARRANTY Please call the MAGTROL Service Department before you break this seal However this section includes CALIBRATION ACCURACY VERIFICATION procedures and steps to make minor trim ups of calibration NOTE Performing these steps VOIDS the factory CALIBRATION CERTIFICATION that comes with the 5100 PA the factory seal will be broken TEST SETUP The recommended test setup is shown by Figure 13 Sources of incidental circuit inductance include the current shunts within the 5100 output impedance of the calibrators impedance of the load and wiring inductance Since the cu
19. together When entering AVG with HOLD off the averaging registers are cleared and integration starts from the current value With the HOLD function active first pressing AVG starts the integration point from the last stored values of AMPS VOLTS or WATTS When AVG is turned off non averaged values are displayed and the values at that instant are stored in non volatile RAM and upon reentering the AVG mode will be returned as the new averaging starting points Also when the Analyzer power is turned off the last averaged values stored will be held and returned when the AVG function is reactivated The HOLD AVG function permits truly integrated power measurements where power is applied intermittently or where a combination of devices require integrated measurements with interruptions between measurements NOTE WATTHOURS can be determined by using the AVG function and a timing clock Watthours watts avg x time in hours Power Factor PF is not averaged ANALOG OUTPUT OPTION This option provides analog output signals for AMPS VOLTS and WATTS These three analog outputs with their common are isolated from the measured circuits by 750 Volts continuous and 2500 Volts test breakdown The outputs are provided through a standard 5 pin DIN style connector that is located on the rear panel of the 5100 see figure 9 for connections The analog output voltage is calibrated to 5 00 Volts DC for full scale input on th
20. 15 0314 u9 20 u2 o oPB2 CD4518 CD4520 2746244 8 Pao 2 2 Qo Hd 7 EN 015 6 2 2 paa pps PRST RST gt pas U16 Q U10 4 Y4 tlas PAT o 135 ye a CD4518 04520 15 27 v7 2 Qo 17 3 10 10 12 8 8 15 EN 15 _ 1 RST IRST 02 19 19 u16 0314 U10 Q3 2G ua 04518 CD4520 2746244 8 ck Qo 1 Yi 2 2 n 4 16 2 ZEN Qt GAB pag RST gt pas U17 Q U11 4 Y4 11 o 5 Y5 13 6 ye CD4518 CD4520 15 5 74F138 11 11 7 Y7 15 1 Qo i7 3 YO A 10 10 12 8 8 14 2 15 1 913 he 19 RST 857 024 19 us 12 2 017 011 03 61 IT mE 204024418 Pho p s 2 n 4 16 Y7 Ui 915 6 2 Yla pae U12 4 Y4 11 9 5 Y5 13146 Yell CD4520 15 5 11 7 7 17 3 10 12 8 8 01 ihe RST 196 us U12 CD4520 2746244 8 pag CK QO 1 vi 2 4 4 16 915 6 2 Yia 1 ST pas 013 Q37 e 4 Y4 11 9 5 Y5 135 vell PA5 CD4520 15 5 11 7 Y7 Qo i7 3 10 12 8 8 15 te RST 024 19 ue U13 03 epson 2040244 8 2 4 4 16 PA2 Note All capacitors in uF EN 01 2 Y2 vi 5 6 14 4 All resistor
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22. AGE DC 0 1 of reading 0 2 of range VOLTAGE AC 10 Hz to 20 Hz 1 0 of range 20 Hz to 45 Hz 0 2 of reading 0 3 of range 45 Hz to 10 kHz 0 1 of reading 0 2 of range 10 kHz to 20 kHz 0 2 of reading 0 3 of range CURRENT DC 2 5 10 20 and 50 Amp Ranges 0 1 of reading 0 2 of range CURRENT AC 2 5 10 and 20 Amp Ranges 10 Hz to 20 Hz 1 0 of range 20 Hz to 45 Hz 0 2 of reading 0 3 of range 45 Hz to 1 kHz 0 1 of reading 0 2 of range 1 kHz to 5 kHz 0 2 of reading 0 3 of range 5 kHz to 10 kHz 1 0 of reading 10 kHz to 20 kHz 2 0 of reading 50 Amp Range 10 Hz to 1 kHz same as 20 Amp range 1 kHz to 2 kHz 2 096 of range POWER DC 0 1 of reading 0 3 of VA range POWER AC 0 1 of reading 0 2 of VA range POWER FACTOR VA error W error DISPLAY Digital display error x 1 LSB CREST FACTOR Exceeds 3 1 at 50 6 of range full scale 0 01 of range deg C ACCURACY CERTIFICATION All instruments are shipped with a CERTIFICATE of CALIBRATION from MAGTROL Inc Magtrol policies and procedures comply with MIL STD 45662A Measurement standards are traceable to the National Institute of Standards and Technology NIST Instrument calibration every six calendar
23. CKBASIC EXAMPLE The following QuickBASIC program provides bus control and data transfer SINCLUDE c gpib pc qbasic qbdecl bas rd SPACE 24 eos CHR 13 CHR 10 CALL IBFIND gpib0 gpib0 CALL IBFIND dev12 dev12 CALL IBSIC gpib0 start CLS LOCATE 23 1 PRINT Press any key LOCATE 1 1 INPUT Enter the function character s f f UCASES f wrt f eos CALL IBWRT dev12 wrt DO CALL IBRD dev12 rd LOCATE 12 29 PRINT rd LOOP WHILE INKEY GOTO start GPIB INSTRUCTION SET Sets AMPS AUTO ranging on Sets AMPS range to 2 AUTO o Sets AMPS range to 5 AUTO o Sets AMPS range to 10 AUTO o Sets AMPS range to 20 AUTO o A50 Sets AMPS range to 50 AUTO o Sets AUTO zero o Cycle POWER off on to set AUTO zero on CAL Uncalibrated data CALC Calibrated data DEV Shifts GPIB operation to DEBUG Shifts from DEBUG to standard GPIB Sets HOLD function on Sets HOLD function off Sets the AVG function on C Sets the AVG function off Locks out all front panel controls AZ LC Clears front panel lockout Allows GPIB data access at random Sets WATTS display to show PF SYNC Sync s data access to 0 1 sec VA Sets VOLTS AUTOranging on V15 Sets VOLTS range to 15 AUTOzero o V30 Sets VOLTS range to 30 AUTOzero o V150 Sets VOLTS range to 150 AUTOzero o V300 Sets VOLTS range to 300 AUTOzero o V600 Sets VOLTS range to 600 AUTOzero o
24. L 122 8 t OLSEIOA 0 oz P La S OOLSLIOA b 8 9 a L E 27 N a 82721 Y Ss3uaav LIDIG 218 OL Std 22 oorsany L L 722202 d vld 500 Woo S n Viva 8 309 ld OL Old aa Ng peiou siwu u o ss lun u 910481892 1H 1009 crt oo 0 9311 9000 DL D D D OD In SH 9000 0100000000000 vHYOOO gr Hue 009 Lk o6 0 0 0 0 0 0 OO EL gr cirea 2000 0100000000000011 Ji s oa 1000 E 8 1910 ia 0H00 Vid o o 0 00 L ep PPA zva 1108 0 0 000 090 00 00 0 og 0108 gt 1008 Loo 0 0 D D D uda 0008 o o 0 0 1 iva T L L 0 0 OO 16 s ova 10002 o o 000000000077 00 D 0 0 0 0 0 0 L 0 0 00 0 0 6695 4 5 z61g 3223 F T TF F F T F E T T TF Ff TF T T ees f s o0033a00 0 0 0 0 0 O H SSA 2 6 0 Z V S 9 7 8 6 OL i Zi i vi St JIN 0 siqv sna seauaav ig uas oW 5280 pe 3030 ee 400 S gr z L910 z Suy 5
25. MPS OUTPUT line at the load see Figure 1 The AUTO and manual VOLTS range selection is identical in operation to the AMPS as described above WATTS OR POWER FACTOR The WATTS display is five digit unsigned floating point display of power in WATTS or POWER FACTOR as a decimal number WATTS is the power ON default MODE press the MODE PF button for POWER FACTOR MODE Watts measurements are from milliwatts through 30 kilowatts and Power Factors from 0 0001 through 0 9999 WATTS x I x cos TRUE POWER The WATTS range is set by the AMPS and VOLTS active ranges True Power P Factor z ower Factor Vx MODE HOLD The HOLD pushbutton may be depressed at any time When depressed all internal machine functions are halted except auto ranging If the AVG averaging function is active when the HOLD button is depressed the last running average value of AMPS VOLTS and WATTS will be latched on the display Chapter 4 Operation Magtrol Model 5100 Single Phase Power Analyzer The HOLD and AVG functions can be combined See the MODE AVG paragraph below MODE AVG AVG is an integration or averaging function on VOLTS AMPS and WATTS Averaging remains active across manual or auto range changes The averaging function is useful in stabilizing the display when digits are changing because of slowly varying values Integration periods from seconds to minutes may be needed The HOLD and AVG functions work
26. Switches from PF display to WATTS ZNV Sets all nonvolatile memory to zero Magtrol Model 5100 Single Phase Power Analyzer Chapter 5 GPIB Communication SPECIAL FUNCTIONS Three special functions are available at power turn on 1 2 3 To disable autozero display function Turn 5100 power off depress and simultaneously hold the MODE HOLD and the 2 AMPS range buttons as POWER is switched ON least significant digit LSD changes around zero will display Normal operation suppresses several counts around zero To remove the factory set calibration factors Turn the 5100 power off depress and simultaneously hold the MODE PF and the 2 AMPS range buttons as POWER is switched ON Uncalibrated values without factory programmed calibration factors are displayed To remove all programmed calibration factors and display the basic input binary word integer BCD format Turn the 5100 power off depress and simultaneously hold the MODE AVG and the 2 AMPS range buttons as POWER switch ON NOTE These functions are provided for the 5100 PA performance evaluation and are not of use to the average user Operating Principles AMPERES TRANSDUCING Current measuring is accomplished using two calibrated manganin meter shunts For the 2 5 10 and 20 Amp ranges 0 011 Ohms resistance from two series connected metering shunts provide a voltage to a differential input calibrat
27. d it must be installed on the LOAD side of the 5100 downstream This will keep the low impedance of the input line connected to the 5100 PA for surge suppression If the line side must also contain a breaker it should be delayed in operation to open after the load side breaker has opened 2 Specifications VOLTAGE Five DC and AC Ranges 15 30 150 300 amp 600 Volts DC amp Volts rms Remote Voltage Sensing Differential input 110 dB CMRR Maximum of 30 Volts peak volts low terminal to amps output terminal CURRENT Five DC and AC Ranges 2 5 10 20 and 50 Amps DC and Amps rms METER IMPEDANCE Voltage DC or AC 3Megohm load on each voltage range Current DC or AC Ranges 0 011 Ohm shunt resistance in the 2 5 10 and 20 Amp ranges 0 001 Ohm shunt resistance in the 50 Amp range RESOLUTION Processing resolution is 16 binary bits Voltage Display e All ranges 9 999 V is 0 001 Volt Ranges 210 V and lt 99 9 V is 0 01 Volt Ranges gt 100 V is 0 1 Volt Current Display e Allranges lt 9 999 A is 0 001 Amp Ranges 210 A and lt 50A is 0 01 Amp Power Display 0 01 of active Volts and Amps range GPIB Amps Volts and Watts Same as display resolution ISOLATION 1500 Vrms break down from input circuit to chassis ground DISPLAY AUTO ZERO When the A and V display indication is less than 0 5 96 of range the display
28. deest ien es 17 WATTS CALIBRATION CHECK 18 Figure 4 Three Phase 3 Wire Wye 2 Wattmeter with Remote Voltage 8 7 MINOR ADJUSTMENT IF NEEDED 2 2 21 enis senten 18 VOLTS ZERO SS EE 18 AMPERES s SSS A E A sa BERE I 18 VOLTS SCALE FACTOR anan M EUP E 19 AMPERES SCALE EACTOR 19 VOLTS BALANCE 19 CURRENT BALANCE TL 19 WATTS SCALE orien 19 APPENDIX SCHEMATICS 2 2 nece cecus cree 20 Circuit Board 788128 LED display cerit erected ere ed e a E e e e eve e a 20 Circuit Board 78811 NET 21 Circuit Board 788142 22 Circuit Board 788175 EE 22 Circuit Board 78B TA wigs u u 23 Circuit Board 78B TAS 24 Circuit Board 78B145 Digital Readout amp nennen rennen 25 Parts Location for Circuit Board 78 143 26 MAGTROL LIMITED WARRANTY 220000 27 Table of Revisions Page Number s Date Change 02 07 00 Added External Shunt Connection Drawing 5 vi Introduction
29. e 10 Amp current range and the 150 Volt voltage range 1500 Watt range The actual output on other ranges will be a relative value close to 5 Volts due to tolerances in gain resistors and instrumentation amplifiers For example Full scale output on the 15 Volt range may be 4 95 Volts DC The analog output at 12 Volts input would be FS Rng x Rdg or 4 95 15 x 12 3 96 Volts DC NOTE Analog output of POWER FACTOR is not provided See Chapter 2 Specifications Figure 9 Analog Output Connections O5 1 COM WATTSNO4 20 AMPS VOLTS 5 Communication GPIB IEEE 488 The IEEE 488 or GPIB General Purpose Interface Bus provides direct connection and control of the 5100 from any appropriately equipped computer for the purpose of data acquisition and display MAGTROL factory assistance is available HARDWARE INSTALLATION A GPIB interface requires installation of an interface card in the host computer and driver software resident on the PC s hard disk MAGTROL can supply the National Instruments Corp GPIB PC2A interface for IBM or compatible PC s SOFTWARE INSTALLATION Formatting and initialization assistance is available from MAGTROL Customer Service All GPIB data acquisition systems require the use of termination characters to signal the conclusion of a data exchange The 5100 uses the Hewlett Packard HPIB standard ASCII termination characters Carriage Return CR a
30. e 6 Current amp Potential Transformer Single 8 Three Phase 4 Wire Balanced Load 1 Wattmeter 8 Figure 7 Three Phase 4 Wire Wye Balanced Load 1 Wattmeter eese 8 Three Phase 3 Wire Balanced Load 1 Wattmeter Connections nennen nemen 8 Figure 8 Three Phase 3 Wire Balanced Load 1 Wattmeter eese 8 4 OPERATION Mc 9 e E E A ZL 9 Amperes PIEVE 9 Voltage EVE 9 Watts or Power gt 9 Mode T MR NE RETO u u OS 9 vo 10 Analog 10 Fipgure9 Analog Output Connections y udis rye eU Ov e e ROTER ein wats iene UE e sre eee 10 5 GPIB COMMUNICATION et cuan huma ab ed ARR U u u 11 uuu E E 11 Hardware Installation 11 Software Install atigi u 11 Primary Address ER Er erri 11 Figu
31. ed value is set to ZERO Refer to SECTION 5 SPECIAL FUNCTIONS to disable the AUTO ZERO function ANALOG OUTPUTS This is an optional feature Analog AMPS VOLTS and WATTS output signals are a relative value of approximately 5 Volts DC for full scale on each range selected These outputs are calibrated to 5 00 Volts DC 0 2 for full scale input on the 10 Amp current range and 150 Volt voltage range 1500 Watt range Ripple is less than 5 mV The outputs are operational amplifiers with an impedance of 1 Ohm and current capacity of 4 mA Each output signal and common is electrically isolated from the measured circuit by 750 Volts continuous and 2500 Volts test breakdown Leakage current is less than 0 3 at 240 Vrms 60 Hz DATA ACQUISITION ANALOG The conversion of true rms to DC is expressed as 11 ly t dt e Rms to DC conversion averaging time constant Volts and Amps time constant TC 60 msec Watts time constant TC 120 msec Watts V x I x cos instantaneous DIGITAL Processing Integration period 0 10 second Display update time 2 readings per second EEE 488 GPIB Synchronized 0 1 sec per reading Non synchronized is 0 04 to 0 07 sec per reading Chapter 2 Specifications Magtrol Model 5100 Single Phase Power Analyzer MEASUREMENT ACCURACY Specified test conditions Ambient temperature of 72 x 10 F and power factor of 0 1 to 1 0 lead or lag VOLT
32. for by adjusting the SW iritasi phase of the current wave form to be MUT 5100 PA VOLTS exactly in phase zero phase shift with HIGHO the voltage wave form LOWO AMPS L GND ouTPUTo INPUT 1 HEARTH Magtrol Model 5100 Single Phase Power Analyzer Chapter 7 Calibration CALIBRATION VERIFICATION Refer to Figure 13 for the recommended test setup If other test equipment is used appropriately modify the test steps for your equipment A Potentially lethal voltages are used in the following test steps avoid electrical shock Refer to your calibrator operator manual for operating instructions these calibrators generate lethal voltages extreme care is necessary The three steps of the calibration verification are as follows 1 Volts Calibration Check 2 Amperes Calibration Check 3 Watts Calibration Set both the VOLTS and AMPERES calibrators to standby mode VOLTS CALIBRATION CHECK DC 1 On the 5100 PA depress the 15 volts range pushbutton 2 Setthe volts calibrator for zero volts DC and operate mode The 5100 VOLTS display should read zero 0 0001 max of volts full scale range 3 Set volts calibrator for 15 volts DC The 5100 VOLTS display should read 15 00 volts Record the VOLTS readings 5 Set the calibrator for 15 volts DC and repeat the above step Record the VOLTS readings Repeat the above 6 steps for the 30 150 300 and 600
33. ications refer to Chapter 2 Specifications The 5100 defaults to AUTO auto ranging at turn on AUTO up ranging occurs if the rms current exceeds the top of the range value plus about 5 or if a peak value exceeds full range rms value x 1 414 plus approximately 5 AUTO down ranging occurs when the current is just less than full range value of the next lower range Selection of any amps range pushbutton activates the selected range by overriding the AUTO range selection AUTO LED goes off and selected AMPS LED illuminates However the AUTO up range function is always silently monitoring the current and is ready to up range the instrument if the current increases above the range full scale If the current falls below the value of the originally selected range that range will then re activate The instrument will automatically up range from the measured current but will down range only to the selected range The display will show HELP when the 5100 PA maximum current is exceeded VOLTAGE DISPLAY The VOLTS display is a four digit unsigned floating point display of AC rms or DC voltage between the rear panel HIGH black and LOW white terminals The voltage input is differential neither terminal tied to common allowing connection at a remotely located load This remote connection removes the voltage drop in the load connection wires from the power measurement The VOLTS LOW terminal WHITE must be connected to the A
34. ion amplifier In the 50 Amp range the low current section of the shunt is bypassed by a low resistance mercury relay leaving 0 001 Ohm of active shunt See Figure 10 This autorange activated shunt bypass relay protects the metering shunts from overheating for overloads up to 100 amps for about 30 seconds VOLTAGE SENSING The VOLTS input terminal connects a 1 5 megohm resistive voltage divider to a differential input amplifier to provide scaled voltage for measurements See Figure 11 ANALOG PROCESSING Input signals proportional to AMPS and VOLTS are amplified and scaled for each range These scaled signals pass through a true rms to DC converter a voltage to frequency converter and an optical isolation coupler The resulting signals represent true rms current and voltage as a function of frequency AF and respectively Also scaled AMPS and VOLTS signals are input to a precision four quadrant X Y multiplier averaged by passing through an active two pole Butterworth filter converted to frequency in a voltage to frequency converter and isolated through an optical coupler The resulting signal WF0 represents true power V x Ix Cos 0 in WATTS as a function of frequency There is 2500 volts isolation between the measured circuit and the AF VF and WE frequency signals See Figure 12 for a block diagram Figure 11 5100 Input Circuits LINE HIGH BLK 5100 HIGH
35. is 10 240 i PD05 C1 _ C2 120 F u 12 T 1 iei _ 14 20 10 M ur 22 Schematics Appendix A Magtrol Model 5100 Single Phase Power Analyzer CIRCUIT BOARD 78B143 4 SISSVHO 42 H3MOd SESESSEE 00020000 9959988 55 59588 nooo T TT o L Ast L o me mej 0 6 Aero E E 8 uc one qA L 9221 PEL zL revere g Li 528 m s eL 95 Set Tite Woo st s n ev qv Si o 100 T 6 seo veo 220 Ve 5 Sito no wi 9 H0L Vvl
36. months is necessary to maintain full compliance with all specifications If a one year calibration cycle is used all accuracy specifications are reduced by 0 1 After one calendar year the instrument is considered to be out of calibration 3 Connecting the 5100 A CAUTION Always install a properly rated circuit breaker or fuse between the 5100 analyzer and the load Also make sure that your power source has it s own disconnect and overload protection that has an operating time lag that insures the load breaker always operates first Wire according to all applicable wiring codes making sure the wire gauge and insulation ratings are adequate for your application SURGE PROTECTION Use Metal Oxide Varistors MOV or other PROTECTION equivalent transient suppressors connected between lines at the load across the load These suppressors are an absolute necessity when inductive loads are used In three phase systems each load must have a suppressor EXTERNAL SHUNTS External Shunt Connection Figure 1 High Ext Shunt 2 Input SOURCE L iL 7 222225 7 External Shunt A Nd 5100 BACK PANEL 200 250 400 EXT 300 amp 600 750 EXT 150 300 amp 600 KW 1000A EXT 150 300 amp 600 EXT Shunt must be plugged in even if not in use or 5100 will display EXTShuntiscalibrated with one 5100 Calibration will
37. mu 9 S 5 a m O 20 Magtrol Model 5100 Single Phase Power Analyzer Appendix A Schematics CIRCUIT BOARD 78B141 04518 04520 740244 lick oo 241 8 n 2 2 n 4 16 2 atg 62 2 Pas o RST RST pas o U15 Q 4 Y4 o 11 9 A5 Y5 o 138 CD4518 CD4520 15 5 ao 17 7 pat 10 10 12 8 8 o 15 1 913 lig o RST IRST 02 19 u
38. nd Line Feed LF in that order On a write cycle the 5100 looks for the CR LF to signal completion of an instruction and transmits these characters upon conclusion of a data read cycle PRIMARY ADDRESS All instruments serviced on the bus have a separate primary address code The factory setting for the 5100 is twelve 12 This code can be changed by changing the DIP switch settings that are located on the rear panel and above the GPIB connector Change this address only if there is an addressing conflict with other instrumentation on the bus Refer to the table in Figure 10 to set the DIP switch pattern Figure 10 Address Selection Address 12 shown SWITCH SEGMENT ADDRESS 1 2 3 4 5 LSB MSB O 0 1 1 1 2 1 1 3 0 0 1 0 O 4 1 0 1 0 5 1 1 6 1 1 1 0 0 7 0 0 0 1 O 8 1 1 O 9 12 4 8 16 0 1 0 1 O 10 123452678 1 1 0 1 0 11 1 1 Of 12 1 1 1 0 13 0 1 1 1 14 Not Used 1 1 1 1 0 15 1 16 1 0 1 17 O 1 18 1 1 0 1 19 0 0 1 0 1 20 1 0 1 0 1 21 0 1 1 O 1 22 1 1 1 0 1 23 0 0 0 1 1 24 1 0 1 1 25 0 1 0 1 1 26 1 1 0 1 1 27 0 0 1 1 1 28 1 0 1 1 1 29 0 1 1 1 1 30 1 1 1 1 1 31 IBM AND COMPATIBLES INSTRUCTIONS The 5100 PA 15 configured for the Hewlett Packard standard termination characters of CARRIAGE RETURN CR hex OD and LINE FEED LF hex OA On a read cycle
39. nsportation prepaid and a description of the malfunction to the factory The instrument shall be repaired at the factory and returned to purchaser transportation prepaid MAGTROL ASSUMES NO RISK FOR IN TRANSIT DAMAGE THE FOREGOING WARRANTY IS PURCHASER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR USE MAGTROL SHALL NOT BELIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSS WHETHER IN CONTRACT TORT OR OTHERWISE CLAIMS Immediately upon arrival purchaser shall check the packing container against the enclosed packing list and shall within thirty 30 days of arrival give Magtrol notice of shortages or any nonconformity with the terms of the order If purchaser fails to give notice the delivery shall be deemed to conform with the terms of the order The purchaser assumes all risk of loss or damage to products upon delivery by Magtrol to the carrier If a product is damaged in transit PURCHASER MUST FILE ALL CLAIMS FOR DAMAGE WITH THE CARRIER to obtain compensation Upon request by purchaser Magtrol will submit an estimate of the cost to repair shipment damage
40. nto the 50 60 Hz power mains Switch the POWER rocker switch red to ON and observe that the digit readouts flash on off on and then indicate zero or a small number The VOLTS and AMPERES range switch indicator lights will all illuminate The voltage ranges sequence down from 600 through 15 and current ranges sequence down from 50 through 2 The 15 Volt 2 Amp and AUTO indicators will remain illuminated The MODE indicators do not light during this power on sequencing Your 5100 PA has passed the initial check TRANSIENT OVERLOADS Connect an appropriate transient suppressor in parallel with all inductive loads Consult the suppressor vendors application literature for proper selection and sizing A CAUTION Damage to the 5100 can result from excessive voltage transients generated by unsuppressed inductive loads This damage is not within the scope of the normal instrument service and is not covered by the MAGTROL WARRANTY CURRENT OVERLOAD NO FUSES are in the 5100 PA measuring circuits Therefore excessive current passed through the AMPS terminals will cause excessive internal heating and possible unit damage A CAUTION This overload abuse is not covered by the MAGTROL WARRANTY Know your load conditions and double check all connections If an overload should occur immediately remove all power locate and correct the problem before re energizing your circuit If a circuit breaker is installe
41. o avoid loading the lines and affecting the power measurement The general discussion from Figure 2 applies The three load impedances are equal for a balanced load Figure 8 Three Phase 3 5100 PA VOLTS k Wire Balanced Lowo LINE vide 21 M GND OUTPUT PDC Wattmeter 2 HEARTH o 02 ov R cow lt 0 4 Operation GENERAL Using Sections 1 and 3 as a guide connect the 5100 Before connecting the power mains double check all connections using an Ohmmeter Verify that the overcurrent circuit breaker is open and connect the power mains Observing the 5100 front panel indicators Turn the 5100 power switch ON and confirm proper operation refer to Initial Checkout under Chapter 1 Introduction Energize the power mains and apply power to the load by closing circuit breaker CB If improper operation occurs immediately disconnect power mains locate and correct the problem The 5100 has three MODES HOLD PF power factor and AVG averaging five AMPS ranges plus AUTO autoranging and five VOLTS ranges plus AUTO AII have adjacent red LED s indicating the active mode and measurement range AMPERES DISPLAY The AMPS display is a four digit floating point display of true AC rms or DC current flowing into the AMPS INPUT connector white on the rear panel For detailed specif
42. r larger wire can be used For lines longer than 25 feet or lines grouped with other AC conductors shielded cable should be used Connect the shield at the 5100 PA GND terminal If the wires connecting the load to the 5100 PA OUTPUT are short and the resulting voltage drop is insignificant the voltage sense connections can be made at the rear panel of the 5100 PA AN MGs Connect the chassis ground terminal to a good earth ground Use at least 12 gauge insulated copper wire Figure 2 Single Phase AC or DC with Remote Voltage Sense LOW 0 74 T OUTPUT LINE j MOV 77 EARTH CB THREE PHASE 3 WIRE DELTA CONNECTIONS Load true power is the algebraic sum of the two wattmeter readings W W1 x W2 regardless of load power factor or balance The general discussion from Figure 2 applies NOTE For load power factor 0 5 one wattmeter reads zero as the power factor goes less than 0 5 it s power is negative and is subtracted in the algebraic watts summation The 5100 PA will not display a minus sign for this condition If your 5100 has the Analog Output Option the watts relative polarity is available by measuring both analog watts outputs For power factors greater than 0 5 the polarity of both wattmeters will be the same therefore true power in watts is simply the unsigned sum of the wattmeter readings Magtrol Model 5100 Single Phase Power Analyzer Chapter
43. re 10 GPIB Address Selection eese eene ene causas aaa E 11 IBM and Compatibles Instructions 11 READ CYGLDB iu na 12 QuickKBASIC Example deer roe aet sunset nee n ese ea ea Bee 12 GPIB Instr ctlOh Set cicer eet eterne e ERR RUE 12 Special PUMCHOMS em v 13 6 OPERATING PRINCIPLES J 14 14 Voltage Sensing T 14 Figure 11 5100 Input are ra eto cela hd eds 14 Analog Processing LER 14 Figure 12 Block Diagram ire 15 Digital 15 202 16 16 Test Setup 16 Figure 13 Calibration Verification Test Setup 16 Calibration VertfICablOn cere ect trie ter e EHE 17 VOLTS CALIBRATION 17 AMPERES CALIBRATION CHECK LIL N
44. rrent calibrator output is usually a low impedance with low compliance voltage the 5100 s current measuring shunts are the circuits major resistance Let s take a representative example and compute the resulting phase shift Let L 10 uhenries total of shunt wiring etc Let 0 011 Ohm Rwiring 0 01 Ohm 0 011 0 01 0 021 Ohms Let F 60 Hz 2 FL 0 004 Arctan 2x FL Arctan 0 004 0 021 0 11 degrees or about 1 8 measurement error This error can be eliminated by adjusting the calibrators variable phase shift control This demonstrates the need for care in making power analyzer calibration measurements Figure 13 Calibration Verification Test Setup The accuracy of the voltage and current standards used for calibration should PHASE VARIABLE be at least four times the accuracy of LOCK PHASE ficat OUTPUT the 5100 PA specifications The VOLTAGE CALIBRATOR equipment shown in this test setup else 2 VOLTAGE CALIBRATOR thi FLUKE 5700 OR FLUKE 5700 OR meets this requirement FLUKE 5100A OR q EQUIVALENT EQUIVALENT To accurately measure AC power it is pa VOLTS HIGH LOW important that the current source have OPTIONAL FOR AMPS 52 a phase shifting control With such a TRANSCONDUCTANCE AMP FLUKE 57254 5205A phase adjustment phase shift caused GUIDELINE 7620A OR by incidental circuit inductances can be compensated
45. s in 5 Vol TRST 02 6 8 12 PAG Unless otherwise noted U14 A4 Y4 1145 9 a 138 ye U 5 COM 00 ese CD4520 1 15147 v7 1 16 4 58 9e 10 00 17 Ya 2 8 20 10 EN Q1 1 91113 16 89 Wpol 15 13 1G s RST oz 19 ur 15 oF U14 Q3 10 12 14 16 1 8 9 o 16 17 WW 5 18 16 8 15 Ne 1 12K 2040244 8 19 14 7 A 1 Alao 2 6 20 3 11 189 m 5 z Yal4 PA4 16 J5 c2 8 12 PA6 i M Y p 139 FUNCTION C1 c2 1 15 6 HOLD O 1 12 ilo J4 Y8 AVG 1 1 gt 45 2222 1918 lo 2G 08 RANGE SWITCH m 12Kx8 2 21 00 9 gt COM bis Fr 5 iol x x x AVERAGING 200 12 agf PAo 1011 1 0 x HOLD 2004 13 So 2 PAL 20 O 1 x x x POWER FACTOR 200 10 411 6 3 PA2 50 1 APET 5 7192 2 3 15 x x x 1 0 0 9 403 14 30 x 0 110 87 104 E 150 x xx 1 1 r Jos 800 x x x 1 15106 eoo 1 1 1 Q7 018 x don t care 21 Appendix A Schematics Magtrol Model 5100 Single Phase Power Analyzer CIRCUIT BOARD 78B142 AVG PF 8W8 _ SW SW1 D CRI y CR2 d hd 44 CIRCUIT BOARD 788175 Line T1 709 9 Heatsink 5 BR1 7805 x chass
46. st For the 300 volt range adjust For the 600 volt range adjust R35 5 SCALE FACTOR 1 2 Go to the AMPERES range s that need adjustment Set the current calibrator DC output to the range maximum current and adjust trim pot s so the AMPERES display reads the full scale current For the 2 Amp range adjust For the 5 Amp range adjust Ro For the 10 Amp range adjust R4 For the 20 Amp range adjust R33 For the 50 Amp range adjust R35 Note Calibration on the 20 and 50 Amps ranges may have to be done at less than full range scale depending on your calibration equipment VoLrs BALANCE Bop pP Go to the 5100 PA 150 VOLTS range Setthe voltage calibrator for 150 volts DC output Note the VOLTS display reading Reverse the calibrator polarity to 150 volts DC If the plus to minus display readings differ by more than 2 LSD connect a digital voltmeter at amplifier pin 14 and adjust trim pot for zero 0 1 millivolt DC CunRENT BALANCE Bow rm Go to the 5100 PA 2 Amp range Set the current calibrator for 2 Amps DC output Note the AMPERES display reading Reverse the calibrator polarity to 2 Amps DC If the plus and minus display readings differ by more than 2 LSD connect digital voltmeter at amplifier Ug pin 14 and adjust trim pot for zero 0 1 millivolt Watts ScALE Factor 1 Set the volts and current calibrators for 150 VDC
47. te with 5100 PA connectors Superior Electric Supercon INPUT plug white female PSSOGWT OUTPUT plug white male PP50GWT VOLTS HIGH plug black female PS25GB VOLTS LOW plug white female PS25GWT For your convenience the above connectors are supplied with your 5100 PA A CAUTION Use only the above connectors NOTE GPIB IEEE 488 24 Pin bus standard Not included must be ordered separately MAXIMUM RATINGS LOAD voltage line to line or line to common is 600 Vrms LOAD current 50 Amperes rms continuous 100 Amperes rms 30 sec max REMOTE VOLTAGE SENSE Line to line is 600 Vrms Also do not exceed 600 Vrms differential between the VOLTS INPUT and AMPS OUTPUT terminals Chapter 1 Introduction Magtrol Model 5100 Single Phase Power Analyzer INSTALLATION ORIENTATION The 5100 PA must be mounted within 20 degrees from horizontal This insures proper operation of the mercury shunt bypass relay ELECTRICAL LoAD Use wire rated for the maximum load current and voltage expected Hint use wire gauge large enough to insure good connector set screw compression on the wire leads Soldering may be used instead of or in addition to the set screw IEEE 488 GPIB Use only high quality shielded cable conforming to the bus standards INITIAL CHECKOUT Make sure the circuit is completely de energized by removing all voltage sources Plug the 5100 PA i
48. volts ranges MG Lethal Voltages are Used 8 Compare the above readings to the 5100 PA ACCURACY SPECIFICATIONS in Chapter 2 of this manual The and readings should be within 2 least significant digit LSD of each other AC 1 Set the volts calibrator for 60 Hz and repeat the volts checks as outlined in the DC test above NOTE If a beat frequency effect is experienced between the calibrator output and the 60 Hz power line frequency try setting the calibrator for 80 Hz instead of 60 Hz 2 Setthe volts calibrator to standby mode 5 CALIBRATION CHECK DC 1 On the 5100 depress the 2 AMPERES range pushbutton 2 Set the current calibrator for zero amperes and operate mode The AMPERES display should read zero 0 0001 max of range full scale 3 Set the current calibrator for 2 Amperes DC The AMPERES display should read 2 000 Amps 4 Record the current readings Set the current calibrator for 2 Amperes The AMPERES display should read 2 000 6 Repeat the above 5 steps for the 5 10 20 and 50 Amp ranges 7 Compare the above readings to the 5100 PA ACCURACY SPECIFICATIONS in Chapter 2 of this manual Chapter 7 Calibration Magtrol Model 5100 Single Phase Power Analyzer The and readings should be within 2 LSD of each other AC 1 Setthe current calibrator for 60 Hz and repeat the current checks outlined above NOTE If a beat
49. x A Magtrol Model 5100 Single Phase Power Analyzer CIRCUIT BOARD 78B145 DIGITAL READOUT amp MPU d 1H 3 68L9S E21 0 43009 SL ZL H 016829 S EZ 0 0 OLSIIVM 1 O 0009 5 O0SILIVM L OF 00001 SLIVM 52 5 FSIOA L L
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