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Infratek 31 Abridged User Manual

Hand held power analyzer single- and three phase
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USERS MANUAL MODEL 31
HAND HELD POWER ANALYZER
SINGLE- AND THREE PHASE
INFRATEK

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  • Page 1 USERS MANUAL MODEL 31 HAND HELD POWER ANALYZER SINGLE- AND THREE PHASE INFRATEK...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS 5.4.4 Selecting Power Values 5.4.5 Selecting and Resetting Energy Values 5.4.6 Selecting Mechanical Values 5.4.7 Selecting Frequency 5.4.8 Selecting Power Factor (PF) SAFETY 5.4.9 Selecting THD (Total Harmonic Distortion) Warnings 5.4.10 Selecting FFT Values, Harmonics 1-63 5.4.11 Selecting Magnitude of Impedance 1-63...

  • Page 3: Safety

    If you observe a damaged front panel key, please report this to your nearest 1kV burst test: use shielded input- and output cables. Infratek representative and return the instrument for repair. The Power Analyzer complies with the safety standards IEC 1010-1, EN 61010-1.

  • Page 4: Introducing The Hand Held Power Analyzer

    INTRODUCING THE HAND HELD POWER ANALYZER INSTRUMENT VERSIONS, OPTIONS, ACCESSORIES WARNING Model 31-1/0.4L Single Phase Power Analyzer, 0.4 % accuracy, saves 12 instrument Read the „Power Analyzer Safety“ in section 1 of this manual before using the instrument. settings, battery charger/supply, carrying case, no data logging, no...
  • Page 5 0-300A, 0-3000A flexible current clamp with connector to clamp inputs of Power Analyzer (1 per phase), 1 % at 50/60 Hz ACS1: Current clamp with connector to Model 31 clamp input, 0-200A / 0-1000A DC-1kHz, 2% ACS2: Current clamp with connector to Model 31 clamp input, 0-20A / 0-200A,...

  • Page 6: Specifications

    SPECIFICATIONS...

  • Page 7: Mathematical Definitions Used By The Power Analyzer

    MATHEMATICAL DEFINITIONS USED BY THE Power Factor POWER ANALYZER Power Factor 3-phase system (P1 + P2 + P3) / S1 + S2 + S3) RMS-, rectified mean-, mean-, maximum-, minimum-, and peak-to-peak values apply ∫ to current and voltage. Energies x = P, S Energies apply to real- and apparent power.

  • Page 8: Getting Started

    GETTING STARTED The rear panel shown in figure 4.2 contains the input terminals on the left hand side. The Hi- and Lo-voltage terminals are in the middle. The current input terminals are to the left. Two red terminals for 3A and 50A and one common Lo terminal. The clamp input is This section explains how to prepare the Power Analyzer for operation, discusses general equipped with a short circuit connector.

  • Page 9: Turning The Power Analyzer On

    The side menu shows the following settings: IN 5A current input 5A (3A) 100mA A 100mA range in auto ranging Position of Voltage Selector 1V A 1V range in auto ranging for 110V/60Hz operation Syn = I synchronization to current phase L1 >...

  • Page 10: Taking Basic Measurements

    • This is how you select the desired current input. Move the cursor to the top of the side Turn off power in the circuit to be measured. menu, press “SET”. The current input selection pull down menu appears: IN 5A / IN 50A / •...

  • Page 11: Operating The Power Analyzer From The Front Panel

    OPERATING THE POWER ANALYZER FROM THE FRONT PANEL Side menu field (annunciators) Section 5 explains how to operate the Power Analyzer from the front panel. Depending Number field on the instrument version not all functions described here may be available. You may want to configure the instrument to your personal needs going through the steps Graphics field (none selected) described in this section.

  • Page 12: Range Selection, Auto Range Selection

    CLAMP input: The clamp inputs are provided for the measurement of large currents NOTE: When you are using a three phase Power Analyzer all three channels (>50A) by external transducers. These can be current clamps, Hall sensors with current are in the same voltage – and current range. If the signal level of one or voltage output, or special current transformers (CT).

  • Page 13: Selecting Iec1000-3-2, Or Logging

    IEC-3-2 >250ms >250ms >250m This special function measures line current harmonics according to IEC1000-3-2. Sixteen >500ms >500ms >500ms periods are used to calculate current harmonics h01 to h63 of one phase or all three >1s >1s >1s phases from the same set of measurements. Voltage and power harmonics are available >2s >2s >2s...
  • Page 14 Setup for Logging Example 5.1: Investigate the transient behaviour of an induction motor at start-up. Motor data: delta connection, 230V/50Hz, current = 20A. RMS current, • power, and power factor versus time needs to be measured in time Synchronization: The synchronization signal assures regular display updates every intervals of 160ms (8 periods at 50Hz), measurement duration 8 500ms.

  • Page 15: Selecting Various Display Modes

    5.3.2 MAIN MENU < < < < HOLD> > > > 5.2.6 SELECTING VARIOUS DISPLAY MODES Move the cursor to the sixth annunciator in the side menu and press SET. The pull-down Press key M1 to enter the display hold state. The HOLD annunciator at left bottom menu VIEW L1 / VIEW L2 / VIEW L3 / VIEWSUM / VIEWALL presents five choices of indicates it.

  • Page 16: Main Menu

    the digit is incremented and pressing DOWN↓ ↓ ↓ ↓ it is decremented. Any number can be Fundamental frequency Harmonics Waveform entered this way and is concluded by pressing SET. 4Hz-400Hz 1 period If you have an instrument with software version v1.1R0 or higher (delivered May 2002 or 400Hz-3kHz 8 periods later) you can also enter a scaling factor for phase 2 and 3.

  • Page 17: The Measurement Function Selection Table

    The period length is given by the synchronization signal used in the measurement. Depending on instrument version not all functions may be displayed. “Cycles” sets the number of periods, which are used to compute one measurement set. Logg N determines the number of measurement sets transferred via interface to the Please refer to section 3 for definitions of the measurement functions.

  • Page 18: Selecting And Resetting Energy Values

    5.4.4 SELECTING POWER VALUES You can store special input power values such as idle power at a given speed. To store a values move the cursor to input power, A bottom line menu appears: Power values are: active power (or just power), apparent power, and reactive power. All ...

  • Page 19: Selecting Frequency

    Speed: Speed in revolutions per minute (rpm) is derived from internal current- or voltage NOTE: To perform measurements in a single phase system using a three frequency. Speed calculation requires the number of poles of the rotating device. phase Power Analyzer we suggest applying signals to phase L1. Therefore, the number of poles must be set as described above in section Torque.

  • Page 20: Selecting Magnitude Of Impedance

    Let us display harmonics 1, 3, and 5 of current in display fields 0, 1, and 2. Move the OPERATING THE POWER ANALYZER USING THE cursor to display field 0 and press SET. From the measurement function selection table COMPUTER INTERFACE select FFT of current and press SET once more to return to the main display.

  • Page 21: Cabling The Power Analyzer To A Host

    CABLING THE POWER ANALYZER TO A HOST 6.6.2 SENDING COMMANDS TO THE POWER ANALYZER Command Action Turn Power Analyzer off. When cabling is complete turn power on again. The RS-232 interface on the Power Analyzer rear panel uses a DB-9 connector. Its pin out is given below.

  • Page 22: How The Power Analyzer Processes Output

    6.6.3 HOW THE POWER ANALYZER PROCESSES OUTPUT OPERATING SEVERAL INSTRUMENTS ON RS-232 FROM ONE COMPUTER When the host sends a query command the Power Analyzer places an alphanumeric string into the output buffer. In case of the RS-232 interface, data are transmitted right Sometimes it is desirable to control more than one instrument from the same computer.

  • Page 23: Computer Interface Command Set

    COMPUTER INTERFACE COMMAND SET COMMAND DESCRIPTION VOLTage:RMS < < < < F> > > > The following table lists the RS-232 commands. A parameter that must be supplied by Query or set field for DC coupled RMS voltage the user is enclosed in angle brackets <parameter>. Commands can be sent in upper :AC <...
  • Page 24 :SCale < < < < R> > > > IMPedance:MAGnitude < < < < F> > > > Query or write current scaling factor (v1.0R0) Set the field for harmonic impedance previously :SC1 < < < < R> > > > selected by the FORMat:START command.
  • Page 25 DISplay:FORMat [ [ [ [ 0..5] ] ] ] Query or set the number of numeric fields on the :TERMinator CR Query or set command terminating characters. panel. CRLf DISplay:Mode? Query or select display mode. View L1, View L2, :HANDshakes None Query or set handshake mode View L3, View Sum, and View ALL.
  • Page 26 ERROR CODES DEFINITIONS: Overload and under-load Register Definition Syntax Error The command was not recognized. ESR bit 5 is set (CoMmand Error) Voltage overrange Command header error Current overrange A command followed by ‘?’ was sent were no query form is available. And conversely: no ‘?’...

  • Page 27: The Power Analyzer Options

    THE POWER ANALYZER OPTIONS OPTION 02: RS-232 AND INTERFACE, OPERATING SOFTWARE, DATA LOGGING, AND IEC-TESTING This section describes the capabilities and the use of the available options. Some of the Option 02 contains all features of Option 01. Therefore, please read section 7.1. functions described here are available only if you have an instrument version that Additional operating software provides means to acquire and handle data received from a supports this function.

  • Page 28: Eprom Replacement, Power Analyzer Calibration

    EPROM REPLACEMENT, POWER ANALYZER 8.2.2 EQUIPMENT NEEDED CALIBRATION A calibrator that will supply voltages 1V-600V and currents 100mA to 2A at 60Hz with 0.02 % accuracy will suffice. EPROM REPLACEMENT If you are in possession of a newer software version than is installed in your Power Analyzer you may want to exchange the EPROM.
  • Page 29 Current Calibration, use manual ranging Select IN5A, Select 100mA range, select current synchronization Select 100mA range Apply 100mA/60Hz Press M2 Select 300mA range Apply 300mA/60Hz Press M2 Select 1A range Apply 1A/60Hz Press M2 Select 3A range Apply 2A/60Hz Press M2 Select 10A range Apply 2A/60Hz Press M2...
  • Page 30 Verantwortung, dass das Produkt declare under our sole responsibility that the product déclarons sous notre seule responsabilité que le produit MODEL 31 POWER ANALYZER __________________________________________________________________________________ __________________________________________________________________________________ (Bezeichnung Typ oder Modell, Los-, Chargen- oder Seriennummer, möglichst Herkunft und Stückzahl) (name, type or model, lot, batch or serial number, possibly sources and numbers of items) (nom, type ou modèle, no de lot, d’échantillon ou de série, éventuellement sources et nombre d’éxemplaires)

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