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PowerTek PA2553 User Manual

Three-phase power analyser
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Powertek
USER'S GUIDE
PA2553/
PA2553E
T
P
-P
hree
A
ower
hase
nalyser

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  • Page 1 Powertek USER'S GUIDE PA2553/ PA2553E hree hase ower nalyser...
  • Page 3 Powertek agrees to repair or replace any assembly or component (except batteries) found to be defective, under normal use, during the warranty period. Powertek obligation under this warranty...
  • Page 4 In the interest of continued product development, Powertek. reserves the right to make changes in this guide and the product it describes at any time, without notice or obligation.

  • Page 5: Table Of Contents

    Contents Contents INTRODUCTION _______________________________________________ 11 Scope ______________________________________________________ 11 Features____________________________________________________ 12 FUNCTIONAL DESCRIPTION____________________________________ 13 Theory of Operation __________________________________________ 13 Interfaces___________________________________________________ 15 Front Panel_______________________________________________ 15 Parallel Printer____________________________________________ 15 IEEE488 ________________________________________________ 16 USING THE POWER ANALYSER _________________________________ 17 Setting Up __________________________________________________ 17 Front Panel _________________________________________________ 18 Rear Panel Connections _______________________________________ 19 Starting the Power Analyser____________________________________ 20 Configuring the Power Analyser ________________________________ 20...
  • Page 6 PA2553 User's Guide VIEWING RESULTS ____________________________________________ 35 Display Screens ______________________________________________ 35 Basics Group _____________________________________________ 36 Harmonics Group__________________________________________ 41 Waveforms Group _________________________________________ 44 History Group ____________________________________________ 46 PRINTING RESULTS____________________________________________ 51 Sample Printouts_____________________________________________ 51 CALIBRATION_________________________________________________ 65 Removing DC Current Offsets __________________________________ 65...
  • Page 7 Figures Figures Figure 1. Bench Type Power Analyser ________________________________ 17 Figure 2. Front Panel detail_________________________________________ 18 Figure 3. Rear Panel detail _________________________________________ 19 Figure 4. Startup screen ___________________________________________ 20 Figure 5. Setup Index screen with INTERFACES/DATE/TIME selected_______ 20 Figure 6. The Interface Setup screen __________________________________ 21 Figure 7.
  • Page 8 PA2553 User's Guide Figure 24. Basics ∑RMS INRUSH φA display __________________________ 36 Figure 25. Basics ∑RMS INRUSH ∑φABC display ______________________ 37 Figure 26. Basics ∑RMS INTEGRATED φA display with callouts ___________ 37 Figure 27. Basics ∑RMS INTEGRATED ∑φABC display _________________ 37 Figure 28.
  • Page 9 Figures Figure 54. Waveforms V&A CONT φA display with callouts _______________ 44 Figure 55. Waveforms V&A CONT φB display _________________________ 45 Figure 56. Waveforms V&A CONT φC display _________________________ 45 Figure 57. Waveforms V&A CONT ∑φABC display _____________________ 45 Figure 58. Waveforms V&W CONT φA display _________________________ 45 Figure 59.
  • Page 10 PA2553 User's Guide Figure 84. Phase A Volts and Current Waveforms nongraphic printout ________ 59 Figure 85. Phase B Waveforms graphic printout _________________________ 60 Figure 86. Waveforms Volts, Amps, Power graphic printout________________ 61 Figure 87. Phase A Current Level History graphic printout _________________ 62 Figure 88.

  • Page 11: Introduction

    Introduction Introduction The purpose of this user guide is to describe the use and capabilities of the PA2553 and PA2553E (External Current) Three-Phase Power Analyser. Scope The three-phase PA2553 is an easy-to-use, general purpose power analyser, which may be configured for 1φ 2-wire, 1φ 3-wire, 3φ 3-wire or 3φ 4-wire power sources and loads.

  • Page 12: Features

    PA2553 User's Guide Features The PA2553/PA2553E Power Analysers’ features include the following— • Simple interface. • Display basic measurements of ? RMS, DC, Fundamental (harmonic), and ?Harmonics for any single phase or the total of all phases. • Display harmonics in bargraph or a list format.

  • Page 13: Functional Description

    This chapter describes the circuitry and interfaces of the PA2553/PA2553E. Theory of Operation The PA2553/PA2553E is high performance test equipment. Within the analyser, voltage and current signals are converted to digital data using DSP chips where the signals are sampled automatically and periodically. A to D converters scale and sample data. The data-analysis components analyze voltage and current input samples for harmonic content.
  • Page 14 PA2553 User's Guide The DSP generates a Sample-Clock signal from the computed frequency of the user-selected synchronization source. The Sample-Clock signal clocks the ADCs at a suitable frequency to ensure exact synchronization of the overall measurements to the applied signals. The sampling frequency may be up to 170KHz and is slightly "dithered"...

  • Page 15: Interfaces

    Functional Description Keyboard—Allows for changing and bringing up the various displays of results. The keyboard is formed by six key switches, each individually readable by the DSP. All actions taken as a result of a key being pressed are generated by the DSP. Real Time Clock (RTC) and Non-Volatile Memory (NVRAM)—Generates the date and time of day information, and also stores the user display configuration, the IEEE488 address, and the calibration data for each input.

  • Page 16: Ieee488

    PA2553 User's Guide IEEE488 Interface— IEEE488.1 (Certain commands conform to IEEE488.2) Addressing— Single address, user selectable via front panel between 0 and 29 inclusive Capabilities— SH1 AH1 T6 L4 SR1 RL1 PP0 DC1 DT1 C0 E2 (350ns min. T1) Max. Talk Data Rate—...

  • Page 17: Using The Power Analyser

    Using the Power Analyser Using the Power Analyser The purpose of this chapter is to describe how to set up and use the PA2553/ PA2553E. This chapter covers— • Setting Up • Using the Front Panel Buttons • Rear Panel Connections •...

  • Page 18: Front Panel

    Powertek, THE PROTECTION PROVIDED BY THE EQUIPMENT MAY BE IMPAIRED. Front Panel The front panel on the PA2553 and PA2553E includes a LCD display screen, power switch and buttons. The buttons are from left to right: NEXT, F1, F2, F3, F4 and PRINT.

  • Page 19: Rear Panel Connections

    Using the Power Analyser Rear Panel Connections The PA2553 and PA2553E rear panels provide connectors for a power cord, parallel printer cable and computer interface cable. The PA2553E additionally provides three external current (bnc) connectors and three transducer voltage plugs.

  • Page 20: Starting The Power Analyser

    PA2553 User's Guide Starting the Power Analyser ♦ To start the PA2553/PA2553E, click the ON/OFF button to the ON position. A startup screen will display for a few seconds. This screen lists the model number, current and voltage input options, software revision number, and firmware installation date and time.

  • Page 21: Figure 6. The Interface Setup Screen

    Using the Power Analyser ♦ To setup the Printer, IEEE488 address interface, date and time— With INTERFACES/DATE/TIME highlighted, press the SETUP button. The display changes to the Interface Setup display. Figure 6. The Interface Setup screen Use the CURSOR key to highlight any portion of the display that you desire to modify.

  • Page 22: Figure 8. The Measurements & Wiring Setup Screen

    PA2553 User's Guide Press the SETUP button. The display changes to the Measurements &Wiring Setup display. Figure 8. The Measurements & Wiring Setup screen Use the CURSOR key to highlight any portion of the display that you desire to modify. Press the CHANGE key to change the highlighted portion of the display to the next available option for that data.

  • Page 23: Figure 10. The Current Input Setup Screen

    Using the Power Analyser Press the SETUP button. The display changes to the Current Input Setup display. See example shown below. Figure 10. The Current Input Setup screen Use the CURSOR key to highlight any portion of the display that you desire to modify.

  • Page 24: Measurement Connections

    Press the DONE key to return to the Setup Index screen. Measurement Connections WARNING: IF THE POWER ANALYSER IS USED IN A MANNER NOT SPECIFIED BY Powertek, THE PROTECTION PROVIDED BY THE EQUIPMENT MAY BE IMPAIRED. CAUTION: FOR ALL CONNECTIONS, KEEP INPUT AND OUTPUT WIRING SEPARATED. Using Internal Current Transducers When using the internal current transducer of the power analyser, access the Current Input Setup screen.

  • Page 25: Internal Transducer Connections For Test

    Turn the source power off for the device-under-test before making any connection. Attach the test device to the input terminals on the analyser's rear panel. Note: Ensure that PA2553/PA2553E is configured for the same wiring technique that you are using for the connection.

  • Page 26: Figure 15. 3Φ 3-Wire Connections Diagram

    Phasing of A, B and C is unimportant. This wiring configuration may also be used when the PA2553/PA2553E has been set for 3 φ 4-wire. In that case the PA2553/PA2553E will display the phase to ground voltages, however, the VA and VAR values may not be valid.

  • Page 27: Using External Current Transducers

    If either the Power Source or User Load does not have a neutral connector, then that wire may be omitted. This wiring configuration may also be used when the PA2553/PA2553E has been set for 3 φ 3-wire. In that case the PA2553/PA2553E will display the phase to phase voltages. Using External Current Transducers When using the external current transducer, access the Current Input Setup screen.

  • Page 28: External Transducer Connections For Test

    SOURCE, Phase and Neutral connections need be directly made to the PA2553. Pass each phase current conductor to the load through an external current transducer. Connect the output of the transducer to the respective BNC terminal on the PA2553 rear panel. Note the following - •...

  • Page 29: Sequence Of Display Screens

    Within each main group there are various display screens that are accessible using the softkey buttons. Refer to Figure 17 below— PA2553 Powertek OWER NALYSER...

  • Page 30: Diagrams

    PA2553 User's Guide Diagrams NEXT ↓ ∑rms ↓ ↓ φA Basics MEAS STOPPED/RUNNING ↓ ↓ ↓ φB INRUSH STOPPED/RUNNING ↓ ↓ φC INTEGRATED STOPPED/RUNNING ∑φABC INTEG AVG STOPPED/RUNNING ↓ DC ↓ ↓ φA MEAS STOPPED/RUNNING ↓ ↓ φB INRUSH STOPPED/RUNNING ↓...

  • Page 31: Figure 19. Harmonics Bargraph And List Sample Display

    Sequence of Display Screens NEXT ↓ BAR φA Harmonics ↓ % (Log) STOPPED/RUNNING ↓ ↓ ABS (Lin) STOPPED/RUNNING ↓ ↓ BAR φB VOLTS ↓ ABS (Log) STOPPED/RUNNING % (Lin) STOPPED/RUNNING ↓ BAR φC ↓ BAR φA ↓ % (Log) STOPPED/RUNNING ↓...

  • Page 32: Figure 20. Waveforms V&W Cont Φabc Sample Display

    PA2553 User's Guide NEXT ↓ V&A CONT ↓ ZOOM x 0.5 ↓ φA Waveforms STOPPED/RUNNING ↓ ↓ ZOOM x 1 ↓ φB STOPPED/RUNNING ↓ ZOOM x 2 ↓ φC STOPPED/RUNNING φABC ZOOM x 5 STOPPED/RUNNING ↓ ZOOM x 0.5 ↓ φA V&W CONT...

  • Page 33: Figure 21. History Watts Φa Sample Display

    Sequence of Display Screens NEXT ↓ VOLTS φArms History ↓ 0.4 sec/div STOPPED/RUNNING ↓ ↓ φBrms ↓ 1 sec/div STOPPED/RUNNING ↓ φCrms ↓ 2 sec/div STOPPED/RUNNING ∑ ↓ ABCrms ↓ 5 sec/div STOPPED/RUNNING ↓ φApk ↓ 10 sec/div STOPPED/RUNNING ↓ φBpk ↓...
  • Page 34 PA2553 User's Guide...

  • Page 35: Viewing Results

    Viewing Results Viewing Results Review this chapter to determine which display shows the results that best suit your test requirements. Display Screens The screen displays shown here reflect the default options in the Measurement & Wiring Setup screen. Refer to Configuring the Power Analyser, page 20. For reference those defaults are—...

  • Page 36: Basics Group

    PA2553 User's Guide Basics Group The Basics group shows you a complete picture of the power results of your device. It has 40 different total displays screens with up to 14 characteristics included in the screens. ∑RMS Volts Watts Voltamperes...

  • Page 37: Figure 25. Basics ∑Rms Inrush ∑Φabc Display

    Viewing Results Figure 25. Basics ∑RMS INRUSH ∑φABC display Volt Hour Watt Hour Amp Hour Voltamperes Hour Elapsed time Reactive Power Hour of integration Figure 26. Basics ∑RMS INTEGRATED φA display with callouts Figure 27. Basics ∑RMS INTEGRATED ∑φABC display Figure 28.

  • Page 38: Figure 29. Basics ∑Rms Integ Avg ∑Φabc Display

    PA2553 User's Guide Figure 29. Basics ∑RMS INTEG AVG ∑φABC display Figure 30. Basics DC MEAS φA display Figure 31. Basics DC MEAS ∑φABC display Figure 32. Basics DC INRUSH φA display...

  • Page 39: Figure 33. Basics Dc Inrush ∑Φabc Display

    Viewing Results Figure 33. Basics DC INRUSH ∑φABC display Figure 34. Basics DC INTEGRATED φA display Figure 35. Basics DC INTEGRATED ∑φABC display Figure 36. Basics DC INTEG AVG φA display Figure 37. Basics DC INTEG AVG ∑φABC display...

  • Page 40: Figure 38. Basics Fund Φa Display With Callouts

    PA2553 User's Guide Fund If you wish to view the FUND displays, you must press the button in the F2 position until MEAS comes up, then press F1. Voltamperes Reactive Power Figure 38. Basics FUND φA display with callouts Figure 39. Basics FUND ∑φABC display ∑HARM...

  • Page 41: Harmonics Group

    Viewing Results Figure 41. Basics ∑HARMS ∑φABC display Harmonics Group The Harmonics group of screens show harmonic results. These results can be viewed in a list or bargraph format. The List format shows the fundamental harmonic through to the harmonic. The bargraph format shows through to the 40 harmonic.

  • Page 42: Figure 44. Harmonics Bargraph Φa, Volts Abs Log Display

    PA2553 User's Guide Figure 44. Harmonics Bargraph φA, VOLTS ABS Log display Figure 45. Harmonics Bargraph φA, VOLTS % Lin display Figure 46. Harmonics Bargraph φA, AMPS % Log display Figure 47. Harmonics Bargraph φA, AMPS ABS Lin display Figure 48. Harmonics Bargraph φA, AMPS ABS Log display...

  • Page 43: Figure 49. Harmonics Bargraph Φa, Amps % Lin Display

    Viewing Results Figure 49. Harmonics Bargraph φA, AMPS % Lin display Lists Each LIST display screen is limited to a few lines. Use the Scroll button to view the fundamental through the 50 harmonic result. The List screens show harmonics in— •...

  • Page 44: Waveforms Group

    PA2553 User's Guide Figure 52. Harmonics List φA, PHASE display Figure 53. Harmonics List φB, PHASE display Waveforms Group The Waveforms group shows continuous results for voltage, current and wattage. The display screens are in xy waveform format. Each screen displays two waveforms for comparison purposes with additional information provided with an inset.

  • Page 45: Figure 55. Waveforms V&A Cont Φb Display

    Viewing Results Figure 55. Waveforms V&A CONT φB display Figure 56. Waveforms V&A CONT φC display Figure 57. Waveforms V&A CONT ∑φABC display Figure 58. Waveforms V&W CONT φA display Figure 59. Waveforms V&W CONT ∑φABC display...

  • Page 46: History Group

    PA2553 User's Guide History Group The History group gives you accumulated results at the following rates: 0.4 second, 1 second, 2 seconds, 5 seconds, 10 seconds, 30 seconds, 1 minute, 3 minutes, 10 minutes, 30 minutes, 1 hour, 3 hours, 6 hours, 12 hours, and one day per division.

  • Page 47: Figure 64. History Volts Φa Thd Display

    Viewing Results Figure 64. History VOLTS φA THD display Figure 65. History VOLTS ∑φABC THD display Figure 66. History AMPS φA RMS display Figure 67. History AMPS ∑φABC RMS display Figure 68. History AMPS φA PEAK display...

  • Page 48: Figure 69. History Amps ∑Φabc Peak Display

    PA2553 User's Guide Figure 69. History AMPS ∑φABC PEAK display Figure 70. History AMPS φA THD display Figure 71. History AMPS ∑φABC THD display Figure 72. History WATTS φA display Figure 73. History WATTS ∑φABC display...

  • Page 49: Figure 74. History Var Φa Display

    Viewing Results Figure 74. History VAR φA display Figure 75. History VAR ∑φABC display Figure 76. History PF φA display Figure 77. History PF ∑φABC display...
  • Page 50 PA2553 User's Guide...

  • Page 51: Printing Results

    Printing Results Printing Results This chapter illustrates some of the various printouts available using the PA2553/ PA2553E. Each printout reflects the data from the display group you are presently viewing. Sample Printouts To get the type of printout you want, check your setting in the Interface Setup screen. A text or graphic print is immediately initiated when the PRINT key is pressed for each of the results display screens.
  • Page 52 PA2553 User's Guide • From the Waveforms group, you can print volts, amps and power waveforms all on one page, if a graphic printer is selected. See Figure 83, Figure 85, and Figure 86. If a text-only printer is selected, then volts and amps will print in a textual representation of the waveforms.

  • Page 53: Figure 78. Phase A Basic Measurement Printout

    Printing Results For a printout like the following, press the PRINT button from any one of the Basics display screens. For phase A data press the PRINT button when φA is displaying in the F3 position, etc. for phase B and C. Figure 78.

  • Page 54: Figure 79. Total Basic Measurements Printout

    PA2553 User's Guide For a printout of the total Basics Measurements, press the PRINT button from any one of the Basics displays when ? φABC is showing in the F3 position. Figure 79. Total Basic Measurements printout...

  • Page 55: Figure 80. Phase A Current Harmonics Barchart Graphic Printout

    Printing Results Press the PRINT button from Harmonics BAR φA AMPS % (Log) screen to print a barchart like the one shown below. Each Harmonics display screen will print separately. Configure the analyser for a PCL2 printer. Figure 80. Phase A Current Harmonics Barchart graphic printout...

  • Page 56: Figure 81. Phase A Current Harmonics Barchart Nongraphic Printout

    PA2553 User's Guide Press the PRINT button from Harmonics BAR φA AMPS % (Log) screen to print a barchart like the one shown below. Each Harmonics display screen will print separately. This sample printed with the analyser configured for Text printer.

  • Page 57: Figure 82. Phase B Harmonics Data List Printout

    Printing Results Press the PRINT button from any Harmonics List display screen to print out PCT, ABS and PHASE data for both voltage and current. Each Harmonics List printout includes the fundamental through all available harmonics up to the 50 Figure 82.

  • Page 58: Figure 83. Phase A Waveforms Graphic Printout

    PA2553 User's Guide For a similar printout, press the PRINT button from Waveforms V&A CONT or V&W CONT screens. For a phase A printout, as shown below, press PRINT when φA is displaying in the F3 position, etc for Phase B and C. Configure the analyser for a PCL2 printer.

  • Page 59: Figure 84. Phase A Volts And Current Waveforms Nongraphic Printout

    Printing Results To print the following, press the PRINT button from the Waveforms V&A CONT screen. For a phase A printout, as shown below, press PRINT when φA is displaying in the F3 position. Note that a printout for phases B and C will be similar. This sample printed with the analyser configured for a Text printer.

  • Page 60: Figure 85. Phase B Waveforms Graphic Printout

    PA2553 User's Guide For a similar printout, press the PRINT button from the Waveforms V&A CONT or V&W CONT screens. For a phase B printout, as shown below, press PRINT when φB is displaying in the F3 position. Note that a printout for phase C will be similar. Configure the analyser for a PCL2 printer.

  • Page 61: Figure 86. Waveforms Volts, Amps, Power Graphic Printout

    Printing Results For a similar printout, press the PRINT button from Waveforms V&A CONT or V&W CONT screens whenever φABC is showing in the F3 position. Configure the analyser for a PCL2 printer. Figure 86. Waveforms Volts, Amps, Power graphic printout...

  • Page 62: Figure 87. Phase A Current Level History Graphic Printout

    PA2553 User's Guide Press the PRINT button from any one of the History display screens for a printout of the data being displayed. The printout shown below is from the History φA Amps RMS display. Configure the analyser for a PCL2 printer.

  • Page 63: Figure 88. Phase A Current Level History Nongraphic Printout

    Printing Results Press the PRINT button from any one of the History display screens for a printout of the data being displayed. The printout shown below is from the History φA Amps RMS display. This sample printed with the analyser configured for Text printer. Figure 88.
  • Page 64 PA2553 User's Guide...

  • Page 65: Calibration

    This chapter describes how to remove DC current offset and how to calibrate both the PA2553 and PA2553E. The calibration signal levels given are for 950V, 40A options. Other options will require different levels for calibration. Please refer to the Product Options Fitted screen accessible from the Setup Index to ensure you are applying the correct levels for your analyzer.

  • Page 66: Figure 90. Input Selection Selected

    Press the CHANGE button to select another INPUT SELECTION, as required. • For the PA2553E: Internal, External Amps and External Volts • For the PA2553: Internal Press the DONE button. Press the CURSOR button three times, the CALIBRATION choice is now highlighted.

  • Page 67: Calibrating The Power Analyser

    0.025% accuracy and 0.01% short-term stability. • Use a Fluke 5700 multi-function calibrator or equivalent for calibrating the standard PA2553/PA2553E. Use a Fluke 5725A or equivalent to calibrate the power analyser 40A Option. Calibration Procedures The user may calibrate the external current inputs with a user supplied current transducer connected, however the user should note that all calibrations are carried out at DC thus an inductive type transducer cannot be used during calibration.

  • Page 68: Figure 93. Calibration Selected

    PA2553 User's Guide ♦ To access the Calibration Setup display— Return to the main Setup Index display using the NEXT button. Press the CURSOR button three times, the CALIBRATION choice is now highlighted, as shown. Figure 93. Calibration selected Press the SETUP button. The display changes to the Calibration Setup display.

  • Page 69: Voltage Calibration

    Calibration Note: ESD and EMI noise can prevent registering zero values for open circuit calibration. Press ACCEPT. Wait one minute until the readings settle. The values for Vn, Va, Vb, Vc and Aa, Ab, Ac should zero out. Figure 96. Open Circuit Point Zero Readings Press ACCEPT again and wait until the readings are within ±0.1.

  • Page 70: Figure 98. Internal Voltage Point Display

    PA2553 User's Guide ♦ To perform the internal voltage point cal— Connect the positive lead of the calibrator to the SOURCE A; B; C and N binding posts on the rear panel. Connect the negative lead of the calibrator to the chassis binding post.

  • Page 71: Figure 100. External Voltage Point Phase B

    Calibration Move the calibrator to the BNC of Phase B. Figure 100. External Voltage Point Phase B Repeat steps 2 through 5—apply proper voltage; wait for readings to settle to 0 ±0.1 and press ACCEPT; wait another minute for readings to settle and press ACCEPT; press NEXT.

  • Page 72: Current Calibration

    PA2553 User's Guide Current Calibration The current cal point display will show one of the following prompts, depending on option fitted— INPUT = 2ADC SOURCE L TO LOAD L (8Apk Option) INPUT = 10ADC SOURCE L TO LOAD L (40Apk Option) Note: The current level shown on the display depends upon which current input option is fitted.

  • Page 73: Figure 104. Load "B" Current Cal Point Display

    Calibration Wait one minute for the readings Aa to settle and press ACCEPT. Wait one minute for the readings to settle to 0 ±0.1 and press ACCEPT. Press NEXT when the readings are within specification. The following screen will display. Figure 104.

  • Page 74: Figure 106. Internal Current Calibration Completion Display

    PA2553 User's Guide 13. The screen will read: Figure 106. Internal Current Calibration Completion display 14. Press SAVE DATA when this step is complete. 15. Press DONE. ♦ To perform the external current cal point— Connect the calibrator to the BNC of Phase A.

  • Page 75: Calibration Faults

    In the event of a calibration fault, please check the connections to the calibrator and the analyser before attempting calibration again. If you are unable to correct a fault condition, contact Powertek for assistance and/or request a return merchandize authorization (RMA) number. Refer to the front section of this guide for telephone number, address and e-mail address of Powertek.
  • Page 76 PA2553 User's Guide Calibration Connection Table 3-Phase Internal Voltage Connections 3-Phase External Voltage Connections Calibrator Lead Rear Panel Calibrator Lead* Rear Panel Negative Chassis ground Negative Coax Shield Positive SOURCE A; N; B; C Positive EXTERNAL A (bnc)— Center conductor of coax...

  • Page 77: Appendix A - Physical Specifications

    Appendix A - Physical Specifications Appendix A - Physical Specifications For further details regarding a specific application contact Powertek. or its representative. Refer also to Appendix B - Measurement Specifications. Note: Specifications subject to change without notice. Temperature & Humidity Operating: 0°C to 45°C, <85% RH @ 40°C non-condensing...
  • Page 78 PA2553 User's Guide...

  • Page 79: Appendix B - Measurement Specifications

    Where “typical” specifications are given, the specification is guaranteed for a typical application (115V/230Vrms with a current > 10% range), for further details regarding a specific application contact Powertek or its representative. Refer also to Appendix A - Physical Specifications.

  • Page 80: Input Burden

    PA2553 User's Guide BNC Signal Terminals (Option E only) Common Mode 5Vpk maximum to Chassis Voltage 25Vpk for 50ms, 2.5Vrms continuous, 2.5Vpk measurable Current 10Arms for 50ms, 2.5Arms continuous, 5Apk measurable Input Burden All capacitances shown are typical values. Binding Post Signal Terminals...
  • Page 81 Appendix B - Measurement Specifications Voltage (Option 400V) 0.1% (0.25% above 250V) + 0.1V 0.02Hz to 20Hz range 0.1% (0.25% above 250V) + 0.02V + 0.1%/Hz add 0.15% below 0.04Hz if AC coupled add 0.075V for peak measurements 0.2Hz to 200Hz range 0.1% (0.25% above 250V) + 0.02V + 0.01%/Hz add 0.05% below 0.4Hz if AC coupled add 0.075V for peak measurements...
  • Page 82 PA2553 User's Guide 20Hz to 75KHz range 0.1% (0.25% above 400V) + 0.1V + 0.02%/KHz add 0.1% below 40Hz if AC coupled add 1V for peak measurements Common Mode >70dB decreasing linearly to >40dB at 75KHz Current to Voltage Crosstalk...
  • Page 83 Appendix B - Measurement Specifications 0.2Hz to 200Hz range 0.1% + 0.005A + 0.01%/Hz add 0.05% below 0.4Hz if AC coupled add 0.02A for peak measurements 2Hz to 2KHz range 0.1% + 0.005A + 0.001%/Hz add 0.05% below 4Hz if AC coupled add 0.02A for peak measurements 20Hz to 5KHz range 0.1% + 0.005A + 0.4%/KHz...
  • Page 84 PA2553 User's Guide 20Hz to 75KHz range below 10KHz : 0.1% + 0.05A + 0.4%/KHz 10KHz to 40KHz : 0.15A + 0.4%/KHz above 40KHz : 16% + 0.15A add 0.1% below 40Hz if AC coupled add 0.5A for peak measurements Common Mode 0.000005A / V / KHz (i.e.
  • Page 85 Appendix B - Measurement Specifications External Current (Option E, current input) 0.1% + 0.01A 0.02Hz to 20Hz range 0.1% + 0.002A + 0.1%/Hz add 0.15% below 0.04Hz if AC coupled add 0.01A for peak measurements 0.2Hz to 200Hz range 0.1% + 0.002A + 0.01%/Hz add 0.05% below 0.4Hz if AC coupled add 0.01A for peak measurements 2Hz to 2KHz range...
  • Page 86 PA2553 User's Guide DC Power (Applied Voltage) x Current Accuracy + (Applied Current) x Voltage Accuracy AC Power Combination of (Voltage x Current Accuracy), (Current x Voltage Accuracy), and phase specifications At 115 or 230Vrms (current >10% range for option fitted, external current) - PF = 1.0000 0.9000 0.7000 0.5000 0.3000 0.1000...
  • Page 87 Appendix B - Measurement Specifications Frequency Minimum Input 0.5% of range for Option for input selected Measurement Accuracy 0.05% (sampling synchronized to within 0.01%) Measurement Period 100ms or 1 cycle (whichever longer) Integrated Results Accuracy of integrated result + 0.05% + 10ms Crest Factor Accuracy From accuracy of peak results...
  • Page 88 PA2553 User's Guide Timing (per division) 0.4 seconds, 1 second, 2 seconds, 5 seconds, 10 seconds, 30 seconds, 1 minute, 3 minutes, 10 minutes, 30 minutes, 1 hour, 3 hours, 6 hours, 12 hours, 1 day (user selectable)

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