Tektronix PA4000 Manual Addendum
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Tektronix PA4000 Manual Addendum

Tektronix PA4000 Manual Addendum

Power analyzer
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Download this manual See also: Instruction Manual
Tektronix, Inc.
P.O. Box 500
Beaverton, Oregon 97077-0001
503 627-7111
Tektronix Model PA4000 Power Analyzer manual addendum.
WARNING - Risk of serious personal injury or death from electric shock. Please read
immediately before using your PA-4000.
The specification of the Tektronix Model PA-4000 has changed to 600 Vrms maximum.
Everywhere in this manual where a maximum voltage rating of 1000 Vrms is stated, it
should read 600 Vrms.
Your product should also be labeled for 600 Vrms maximum on the rear panel. If your
product is still labeled for 1000 Vrms, call your local Tektronix customer service center to
arrange a recall and correction of your instrument.
The correct rear panel label is shown:
Revision A - May, 2015

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  • Page 1 600 Vrms. Your product should also be labeled for 600 Vrms maximum on the rear panel. If your product is still labeled for 1000 Vrms, call your local Tektronix customer service center to arrange a recall and correction of your instrument.
  • Page 2 PA4000 Power Analyzer User Manual *P077081501* 077-0815-01...
  • Page 4 PA4000 Power Analyzer User Manual Firmware version 1.0.037 www.tektronix.com 077-0815-01...
  • Page 5 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material.
  • Page 6 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

  • Page 8: Table Of Contents

    To connect a transducer with a voltage output............. To connect a voltage transformer / transducer ............. Power for external transducers ................The menu system ....................Navigation ..................... Menu items ....................Main menu..................... Measurements ....................Measurements configuration................. Modes ......................PA4000 Power Analyzer...
  • Page 9 Datalog command .................... Math commands ....................System configuration commands................User configuration commands................Sending and receiving commands ................Communications examples .................. Software ......................PA4000 download software.................. Specifications ...................... Measurement channel ..................Power input ....................Mechanical and environmental................Optional parts ....................Communication ports..................
  • Page 10 Table of Contents One phase, three wire SUM formulae ..............Three phase, four wire SUM formulae ..............Measurement accuracy ..................Index PA4000 Power Analyzer...
  • Page 11 Table of Contents List of Figures PA4000 Power Analyzer...
  • Page 12 Table of Contents List of Tables Table 1: Phase measurements .................. PA4000 Power Analyzer...

  • Page 13: General Safety Summary

    Do not operate with suspected failures. If you suspect that there is damage to this product, have it inspected by qualified service personnel. Avoid exposed circuitry. Do not touch exposed connections and components when power is present. Use proper fuse. Use only the fuse type and rating specified for this product. PA4000 Power Analyzer...
  • Page 14 DANGER indicates an injury hazard immediately accessible as you read the marking. WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product. The following symbol(s) may appear on the product: PA4000 Power Analyzer...

  • Page 15: Compliance Information

    Official Journal of the European Communities: EN 61326-1:2006, EN 61326-2-1:2006. EMC requirements for electrical equipment for measurement, control, and laboratory use. 1 2 3 CISPR 11:2003. Radiated and conducted emissions, Group 1, Class A IEC 61000-4-2:2001. Electrostatic discharge immunity viii PA4000 Power Analyzer...
  • Page 16 Emissions which exceed the levels required by this standard may occur when this equipment is connected to a test object. For compliance with the EMC standards listed here, high quality shielded interface cables should be used. Performance Criterion C applied at the 70%/25 cycle Voltage-Dip and the 0%/250 cycle Voltage-Interruption test levels (IEC 61000-4-11). PA4000 Power Analyzer...

  • Page 17: Safety Compliance

    These are sheltered locations where neither temperature nor humidity is controlled. The area is protected from direct sunshine, rain, or direct wind. Pollution Degree 4. Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical outdoor locations. PA4000 Power Analyzer...
  • Page 18 Measurement Category II. For measurements performed on circuits directly connected to the low-voltage installation. Measurement Category I. For measurements performed on circuits not directly connected to MAINS. Overvoltage category Overvoltage Category II (as defined in IEC 61010-1). PA4000 Power Analyzer...

  • Page 19: Environmental Considerations

    (WEEE) and batteries. For information about recycling options, check the Support/Service section of the Tektronix Web site (www.tektronix.com). Restriction of hazardous This product is classified as Monitoring and Control equipment, and is outside the scope of the 2002/95/EC RoHS Directive.

  • Page 20: Preface

    The Tektronix PA4000 is a powerful and versatile precision power analyzer. Designed to provide clear and accurate measurements of electrical power and energy on all electrical products, the PA4000 is both an easy to use bench instrument and a fast and programmable automatic test interface.

  • Page 21: Accessories

    Please see www.tek.com for available accessories. These include the following: Spare measuring lead set A range of current transformers to extend the measuring range from < 1 mA to 1200 A Connectors for the 2 mm external shunt input Communications leads (RS232, etc.) PA4000 Power Analyzer...

  • Page 22: Getting Started

    The device may only be used under certain ambient conditions. Ensure that the actual ambient conditions conform to the admissible conditions specified in this manual. Ensure this product is installed in such a way that its power cable is accessible at all times and can easily be disconnected. PA4000 Power Analyzer...

  • Page 23: Power On

    Power on 1. Check the power analyzer is in good condition with no signs of damage. 2. Follow the Connection Sequence described in the Before You Begin - Safety section. (See page 1.) PA4000 Power Analyzer...

  • Page 24: Concept Of Global, Group And Channel Parameters

    Wiring section of The Menu System chapter. (See page 44, Wiring.) Global, group and channel The PA4000 has many different settings that affect both the appearance of the results and the actual results. To make the instrument easier to operate, settings settings may have an effect on one or more parameters.

  • Page 25: Connecting To The Product Under Test

    To change the group or channel, the left and right arrow hard keys are used. Connecting to the product under test The PA4000 will measure up to 1000 V , CAT II and 30 A or 1 A directly using the 4 mm terminals on the rear of each analog card.
  • Page 26 For plug-connected single phase products, the simplest and safest way to make a connection to the product under test is to use a Tektronix Break Out Box. This provides a line socket for connection of the product and 4 x 4 mm sockets for direct connection to the PA4000 terminals as described above.

  • Page 27: Default Measurements

    Getting started Default measurements Switch on the supply to the load and the PA4000 is now ready to make measurements. Note that it is not necessary to switch the PA4000 either off or on when the load is being connected.

  • Page 28: Navigating The Results Screen

    If there are more columns to view than can be displayed on the screen at one time (for example: 6 columns of results in 4 column mode), the left and right arrow keys to the left of the display can be used. PA4000 Power Analyzer...

  • Page 29: Navigating The Menu System

    Getting started The PA4000 has the option of fixed or auto ranging. Default is auto range. If you choose a fixed range, or the peak of the input signal it larger than the range, then an over range condition will occur. This will be indicated on the results screen by all the results in the over ranged channel flashing on and off.

  • Page 30: On Screen Help

    [HELP] button to get a brief summary of help on that subject. Help does not exist on every screen and at every level therefore if the [HELP] button is pressed without any help showing then there is no help available at this level. PA4000 Power Analyzer...
  • Page 31 Getting started PA4000 Power Analyzer...

  • Page 32: Front Panel Operation

    [MATH] - Displays the math results as configured from the math menu [SETUP] - Displays a screen showing the current configuration of the unit Pressing any one of these keys will change the display to the appropriate display. Pressing it again will have no effect. PA4000 Power Analyzer...
  • Page 33 Results screen The results screen is the default, power on screen for the PA4000. The results screen displays all the requested results. The size / number of results on the screen can be control by using the ZOOM key.
  • Page 34 Changing the group is done by using both the left and right arrow keys to the bottom left of the display. This will change both the group for waveform selection and the waveforms displayed. PA4000 Power Analyzer...
  • Page 35 ( Harmonics do not need to be displayed as results for the bar chart to show harmonics. If harmonics is never displayed, and never configured, then the bar chart would be based on the default harmonic setup. PA4000 Power Analyzer...
  • Page 36 Volts, Amps and then Watts, returning back to Volts. Works on a per-group basis. Changes the harmonic selected by one to the right (higher order). Changes the harmonic selected by one to the left (lower order). Jumps to the harmonics setup menu. PA4000 Power Analyzer...
  • Page 37 Both the x and y axis are automatically scaled. For the y axis, the time will change automatically as the integration time increases. This allows for the best viewing of the graph. PA4000 Power Analyzer...
  • Page 38 Amps vectors only and both Volts and Amps vectors. Each vector displayed is shown in a different color. There can be up to 6 vectors displayed on the graph at one time. This would be a for a 3p4w configuration showing Volts and Amps. PA4000 Power Analyzer...
  • Page 39 Math screen The Math screen is used to display user configured values. These could simply be a selection of desired values displayed on one easy-to-read screen, or basic measurements mathematically manipulated to show a required a value. PA4000 Power Analyzer...
  • Page 40 Setup screen The setup screens are accessed by pressing the [SETUP] button. There are two screens. The first screen displays the current configuration of the channels and groups, and also items such as blanking and comms settings. PA4000 Power Analyzer...
  • Page 41 Front panel operation The second screen shows instrument configuration including information such as when the unit was last verified and last adjusted, the serial number of the unit and the firmware version, and information on the installed analog cards. PA4000 Power Analyzer...

  • Page 42: Soft Keys

    Tunnel up to the previous menu Tunnel down to the selected menu Move the selected measurement up or down in the list Move selected measurement up one row Move selected measurement down one row Select highlighted item PA4000 Power Analyzer...

  • Page 43: Operational And Alphabetical Buttons

    It can clear minimum / maximum hold results and reset the integrator. [INTEG. RUN] / [PQRS] - Pressing this key will start or stop the integrator. If the integrator is running, then the LED under this key will be flashing. PA4000 Power Analyzer...

  • Page 44: Number And Equation Buttons

    [+/-] / [x2] - positive or negative or, with [SHIFT], x squared. [ SHIFT ] - Enable the blue shift options on both the numeric and general keys. [ENTER] / [√] - Enter or, with [SHIFT], square root. PA4000 Power Analyzer...

  • Page 45: Logging Data To A Memory Device

    Front panel operation Logging data to a memory device The PA4000, can be used to log data to a USB flash drive. The unit will log all selected measurements into a comma separated value (CSV) formatted file that is stored on the connected USB flash drive. Results will be logged once per second.
  • Page 46 Math results are also returned when data logging. These will be after the channel results. Only enabled math results will be returned. The column name will consist of the function name and the units specified by the user. For additional information, see USB Host(See page 99, USB host.) PA4000 Power Analyzer...

  • Page 47: Connecting Signals

    · Always adhere to the instructions regarding the sequence of connection(See page 2, Connection sequence.) Signals are connected to the PA4000 on the rear of the PA4000. There are multiple inputs for each analog card as shown below. 1. Voltage high connection 2.
  • Page 48 4 mm VHI and VLO safety sockets at the rear of the PA4000. Current The PA4000 has two built-in current shunts. The shunt first allows currents of up to 30 A , 200 A peak to be connected directly to the black and yellow 4 mm AHI and ALO safety sockets at the rear of each measurement channel of the PA4000.

  • Page 49: To Connect A Simple Current Transformer

    For example, the Tektronix CL200 produces an output current that is 1/100 of the current being measured. To measure the correct current on the PA4000, use the scaling function of the analyzer to scale, or multiply, the CT output current.

  • Page 50: To Connect An External Resistive Shunt

    To connect an external resistive shunt Using a resistive shunt is a straightforward method of extending the current measuring range of the PA4000. The shunt resistor is connected in series with the load and the voltage across the shunt is directly proportional to current.

  • Page 51: To Connect A Transducer With A Voltage Output

    Press Press [MENU] to return to the measurement display. The PA4000 is now ready to make measurements using an external shunt. To connect a transducer with a voltage output These transducers contain active circuits that help to improve performance at high bandwidth.

  • Page 52: To Connect A Voltage Transformer / Transducer

    The output of the transducer is connected to the normal VHI and VLO terminals. Normally the positive or HI output of the transducer will be marked with the point of an arrow or a + symbol. Connect this terminal to the VHI input of the PA4000. Voltage scaling A voltage transformer (VT) produces a voltage output, which is proportional to the voltage being measured.

  • Page 53: Power For External Transducers

    Connecting signals To measure the correct voltage on the PA4000, use the scale function of the analyzer to scale, or multiply, the VT output current. For example, when measuring with a 1000:1 VT a scale factor of 1000 must be used.

  • Page 54: The Menu System

    See the Quick Start section of this manual for an overview of how to access and use the menu system. (See page 8, Navigating the menu system.) For help at any time while using the PA4000 press the HELP key at any time. Menu items To switch the display of the menu system off or on, press the ‘MENU’...
  • Page 55 When you enter the measurement screen you will have the following soft keys available: Tunnel Up Selection Up or top of list Move Measurement PA4000 Power Analyzer...
  • Page 56 If you need to change the order of the results, then you should navigate to the desired result and then click the “Move Measurement” soft key. When the move measurement key is pressed, the highlight bar will change from blue to red. The soft keys will then change as shown below: PA4000 Power Analyzer...
  • Page 57 Move selected measurement down (gray if at the bottom of the list already). Place the measurement in the selected position. The soft keys will change back to the standard measurement screen keys. An example of a measurement being moved is shown below: PA4000 Power Analyzer...

  • Page 58: Measurements Configuration

    Formula) includes the effects of high frequency and noise. This equation only produces a valid number if the RMS is not less than the fundamental. If the fundamental is larger than the RMS the display shows ‘—-‘. The equations are: PA4000 Power Analyzer...
  • Page 59 Electrical Machinery - Cylindrical-Rotor Synchronous Generators" and are most often used on standby power generators and UPS. The harmonics included in a TIF measurement are from 1 to 73 odd and even. The formula for voltage and current TIF are: PA4000 Power Analyzer...
  • Page 60 Sum Max will appear to the right of the SUM results and Sum Min will appear to the left of the Sum results as appropriate. SUM results are available in all wiring configurations except 1 phase, 2 wire (1P2W). (See page 44, Wiring.) PA4000 Power Analyzer...

  • Page 61: Modes

    Reverting back to normal mode will restore any changed settings b. When a setting is forced, it cannot be changed by the operator while the PA4000 is in the non-normal mode Normal mode In normal mode, there are no special measurement methods used. Normal mode is suitable for most power applications and is the default mode.
  • Page 62 IEC 62301. Part of this standard requires the measurement of power over a prolonged period of time without missing any short duration power events. The PA4000 standby power mode provides continuous sampling of voltage and current to produce an accurate Watts measurement over the user specified period.
  • Page 63 Once the conditions have been met, integration will start. Stopping integration. The integration of a group can be stopped either manually or after a certain period of time. If the duration for the group is set to zero, then PA4000 Power Analyzer...
  • Page 64 1 – 100 Hz or 0.1 – 10 Hz, then the rate at which results are returned for that group is altered per the table below: Update rate >10 Hz (seconds) <900 Hz 1 – 100 Hz 0.1 Hz – 10 Hz 20.2 20.4 20.4 20.5 20.4 20.3 20.8 PA4000 Power Analyzer...

  • Page 65: Inputs

    Results from channels not in PWM Motor mode will be returned at the specified rate. Inputs This menu may be used to set up the physical inputs of the PA4000. For normal operation, with the exception of the shunt selection, it is not necessary to change these settings from default.
  • Page 66 The menu system Single-phase, two-wire and DC measurements. Select 1 phase, 2 wire mode. Single-phase, three-wire. Select 1 phase, 3 wire. Three-phase, three-wire (2 Wattmeter method). Select 3 phase, 3 wire. PA4000 Power Analyzer...
  • Page 67 0.0375 V 100 V 10 A 0.25 A 0.15 V 200 V 20 A 0.5 A 0.3 V 500 V 50 A 1.25 A 0.375 V 1000 V 100 A 2.5 A 1.5 V 2000 V 200 A PA4000 Power Analyzer...
  • Page 68 Shunts Default: 30A shunt The PA4000 has 3 different current inputs, or shunts. They are: 30A shunt – Used for normal current measurement in the range of 100mA to 30Arms (200Apk). This selection uses the yellow Ahi and the black Alo 4mm sockets.
  • Page 69 The waveforms at the output of a PWM motor drive are an example of this. External Frequency 1 / 2. On the rear of the PA4000 there are 2 counter inputs on the Auxiliary Inputs / Outputs connector. Either of these can be used as an external frequency source for signals where there is too much noise on the voltage and current waveforms.
  • Page 70 Enter the scale factor of the transducer being used. For example, the Tektronix CL1200 produces 1 amp for every 1000 amps flowing in the opening of the CL. It is a 1000:1 current transformer. Enter the scale factor 1000 and the PA4000 will display the correct current.

  • Page 71: Graphs And Waveforms

    Analog inputs Default: ±10 V range The PA4000 has 4 analog inputs on the rear of the instrument. Each of the 4 inputs can used to measure signal from a device such as a torque sensor. Each of the four inputs has 2 different ranges. The ranges are ±10 V and ±1 V. Each input is sampled every millisecond the average value over the update rate of the instrument.

  • Page 72: Interfaces

    RS232 baud rate Default: 38400 9600, 19200 and 38400 (default) are available. The PA4000 uses hardware handshaking (RTS / CTS) with no parity, 8 data bits and 1stop bit (N,8,1). The RS232 baud rate is unchanged after a “*RST” or “:DVC” command.

  • Page 73: Datalog

    – FN30 and apply the green tick to the one you wish to view. Next press the [MATH] hard key to display your equation, the math’s results display will show “PF 463.27 mPF” Example: CH1:W = 21.49, CH2:W = 53.79 Name = “EFFICIENCY” PA4000 Power Analyzer...
  • Page 74 Amps Peak (negative) Volts Crest Factor Amps Crest Factor Impedance Fundamental Watts VARF Fundamental Volt-Amps Reactive Fundamental Volts Fundamental Amps Fundamental Power Factor Resistance Reactance Voltage Distortion Factor VTHD Voltage Total Harmonic VTIF Voltage Telephone Distortion Influence Factor PA4000 Power Analyzer...
  • Page 75 Functions will be calculated in the order of 1 through 30, so this will have to be factored in when writing equations. Operators available from the front panel keyboard are: + - x / ( ) - {shown as ^2 and will square the preceding number} PA4000 Power Analyzer...

  • Page 76: System Configuration

    The blanking levels are set to 5% of the currently selected range, with the exception of the lowest current range. For the lowest current range, blanking is set to 10%. If blanking operates on either voltage or current then all related measurements would be blanked including W, VA and PF. PA4000 Power Analyzer...
  • Page 77 Future implementation. Clock These options may be used to check or set the PA4000’s internal clock: Set Time - Enter the time using the format shown and press OK to confirm. Set Date - Enter the date using the format shown and press OK to confirm.

  • Page 78: User Configuration

    Pressing any key will turn the display back on, but the PA4000 will remain in remote mode until the [LOCAL] key is pressed. Pressing the [LOCAL] key to switch the display on will not return the PA4000 to local mode.
  • Page 79 Save to USB – Not yet implemented. Load from USB – Not yet implemented. NOTE. Loading a configuration that has never been saved will result in an error message. The current configuration of the unit will not be changed. PA4000 Power Analyzer...

  • Page 80: Remote Operation

    Remote operation Remote operation Overview Using the remote commands the PA4000 can be used to perform high speed, complex or repetitive measurements. All PA4000s have the ability to communicate via RS232, Ethernet, or via USB as standard. Optionally, a GPIB port can be added.

  • Page 81: Interfacing With Gpib Systems (Optional)

    Remote operation Interfacing with GPIB systems (optional) The PA4000 optionally supports control via a GPIB port. This option must be installed by an authorized Tektronix representative. See IEEE 488/GPIB for a detailed pin description of the GPIB connector. (See page 98, IEEE 488 / GPIB (optional).)
  • Page 82 Remote operation Status Byte Register (STB) Read by “*STB?”. Bit 5 - ESB Summary bit to show standard event status. PA4000 Power Analyzer...
  • Page 83 Bit 3 - OVA. Enable OVA bit in DSR. Bit 1 - NDV. Enable NDV bit in DSR. (Default to enabled on power-up.) Bit 0 - DVL. Enable DVL bit in DSR. (Default to enabled on power-up.) PA4000 Power Analyzer...

  • Page 84: Command Listing

    Vertical bar indicates the choice of parameters | Commands and responses are sent as ASCII strings terminated with a line feed. The PA4000 is not case sensitive and white space characters are ignored except where required between command and parameter.

  • Page 85: Ieee 488.2 Standard Commands And Status Commands

    *IDN? Unit identity Syntax *IDN? Return format Tektronix, PA4000, serial number, Firmware version Description The serial number is the serial number of the main chassis. The firmware version is the version of the firmware suite, which includes all processors *CLS...
  • Page 86 The data status register is cleared once it has been read :DVC Device clear Syntax :DVC Return format None Description Performs a soft reboot. This is has the same affect as *RST or :CFG:USER:LOAD 0 (loading the default user configuration) PA4000 Power Analyzer...

  • Page 87: Channel And Group Commands

    Select active channel Syntax :INST:NSELC <channel number> <channel number> is an integer between 1 and 4, depending on the number of channels installed in the PA4000 None Return format Description Sets the number of the channel selected (between 1 and 4 depending on...

  • Page 88: Unit Information Commands

    <serial number> is a 12 character string <hardware revision> is up to 4 characters Return format Tektronix, <card type>, <serial number>, <hardware revision> <card type> is either CPU for the main card, or ANALOG for a channel card <serial number> is a 12 character string <hardware revision>...
  • Page 89 VAH - VA Hours *1 VRH - VAr Hours *1 AHR - Amp Hours *1 WAV - Average Watts *1 PFAV - Average Power Factor *1 CVAR - Correction VArs *1 VF - Fundamental Volts rms AF - Fundamental Amps rms PA4000 Power Analyzer...
  • Page 90 To add results to a group the command “:INST:NSEL <group> must be used first. If it is not, then the last selected group will be affected (or group 1 if no group has previously been selected). PA4000 Power Analyzer...
  • Page 91 1 through 43. Description The move command is used to change the order of results on both the screen in the returned results using FRD?. FRF? can be used to confirm the order of results. PA4000 Power Analyzer...

  • Page 92: Measurement Configuration Commands

    Where <value> equals 0 for odd and even and 1 for odd only. Description If harmonics measurements are selected (see :SEL), the PA4000 can display all harmonics, or just the odd number harmonics from the first harmonic up to the number specified.
  • Page 93 Where value> = the maximum harmonic to be display in the range of 1 to 100. Description If harmonics measurements are selected (see :SEL), the PA4000 will display all the harmonics up to the number specified by <value >. The harmonics displayed can be restricted to odd numbered harmonics only using the harmonic sequence command.
  • Page 94 For total harmonic distortion (THD) readings (also known as the series formula), the formula can either include or exclude the DC component. This command works on a group. Use the :INST:NSEL command first to select the active group. PA4000 Power Analyzer...
  • Page 95 0 or 1 Description Returns the status of the minimum value column. A 0 will be returned if disabled; a 1 if enabled. This command works on a group. Use the :INST:NSEL command first to select the active group. PA4000 Power Analyzer...
  • Page 96 0 or 1 Description Returns the status of the SUM results column. A 0 will be returned if disabled; a 1 if enabled. This command works on a group. Use the :INST:NSEL command first to select the active group. PA4000 Power Analyzer...

  • Page 97: Mode Setup Commands

    :MOD:BAL:FREQ? Return format Ballast frequency for the selected group. Description This command returns the ballast frequency for the active group. Since this command works with a group, use the :INST:NSEL command first to select the active group. PA4000 Power Analyzer...
  • Page 98 Sets the signal to be monitored for comparison against the threshold. The command is followed by the normal signal selection parameter such as VRMS or PWF. Syntax :MOD:INT:ST:LVL:THRES <threshold> Description Set the threshold level. A float from ± 1E9. PA4000 Power Analyzer...

  • Page 99: Input Setup Commands

    :MOD:PWM command to select PWM Motor mode. Input setup commands The input setup commands correspond to the Inputs menu. (See page 44, Inputs.) They are used to control how signal inputs to the PA4000 are channelled and controlled. :WRG Wiring configuration...
  • Page 100 2000 V 200 A Syntax :RNG:VLT | AMP? Return 0 through 12. Description Returns the range configuration that applies to the currently selected group. If the currently selected group is in auto-range, then 0 will be returned. PA4000 Power Analyzer...
  • Page 101 EXT2 = set external counter input 2 as the source Description Sets the frequency source the currently selected group. The first channel in the group will used to determine the frequency. Use the :INST:NSEL command first to select the active group. Syntax :FSR? PA4000 Power Analyzer...
  • Page 102 0 = 10Hz to 50kHz 1 = >10Hz 2 = 1 to 100Hz 3 = 0.1Hz to 10Hz This command works on a group. Use the :INST:NSEL command first to select the active group. Syntax :FSR:RNG? PA4000 Power Analyzer...
  • Page 103 Sets the scaling factor for the currently selected channel. Use the :INST:NSELC command first to select the active channel. If the GRP option is used then the same scaling factor will be applied to all channels in the group. PA4000 Power Analyzer...

  • Page 104: Graph And Waveform Commands

    Returns the measured analog signal on the selected input. Graph and waveform commands Currently not implemented. Interface commands Interface commands are used to set up and control the various ways of communicating with the PA4000. :COM:RS2 RS232 configuration Syntax :COM:RS2:BAUD <baud rate>...
  • Page 105 Syntax :COM:IEE:ADDR? Return address in the range of 1 to 30. Description Returns the GPIB address for the PA4000. If -1 is returned, then there is no GPIB card installed. :COM:ETH Return Ethernet configurations Syntax :COM:ETH:SUB | IP | GATE?

  • Page 106: Datalog Command

    IP = IP address GATE = Default gateway Return IP address in the format xxx.xxx.xxx.xxx Description These commands are used to return the statically assigned IP values for the PA4000. :COM:ETH:MAC Ethernet MAC Address Syntax :COM:ETH:MAC? MAC = MAC address Return MAC address in the format of 12 HEX characters.

  • Page 107: Math Commands

    Remote operation Math commands The math commands enable the setting up of the math screen on the PA4000 as well as the returning of the results. :MATH:FUNC Math function information Syntax :MATH:FUNC <func number="">,<name>,<formula >,<unit> Where: <func number>= 1 through 30 <name>...

  • Page 108: System Configuration Commands

    Change the display update rate. If the update rate is set below 0.5 seconds, then the number of harmonics returned in the update period will be reduced. Syntax :UPDATE? Return The update rate as a float. Description Returns the units update value. PA4000 Power Analyzer...
  • Page 109 The user can also set the date on the analyzer using the :SYST:DATE:SET command. In this case, the <date value> should be in the format specified. For example, if the specified format were 0 (mm-dd-yyyy), then the command would be: :SYST:DATE:SET 12:31:2011 PA4000 Power Analyzer...
  • Page 110 This command allows the display to be switched off to reduce the power consumption of the analyzer. The operation of the display is determined by <value> 0 = always on 1 = off after 10 minutes with no key press or comms 2 = off in remote control mode. PA4000 Power Analyzer...

  • Page 111: User Configuration Commands

    0 for failure. Sending and receiving commands As stated before, there are many ways in which to send commands to the PA4000, but there are some common rules for all methods: All instructions should be terminated with a line feed (ASCII 10) character.

  • Page 112: Communications Examples

    This can be set-up as a discipline in the software to occur after every read and write command sent. Example 1. User sends a query to the PA4000 to determine the status of the shunt. The PA4000 will respond with a CR added to the end of the string;...
  • Page 113 Watt, VA, Var, PF, Vpk+, Apk+ Returning results The PA4000 updates the results at the specified update rate. To return results as soon as they are available, set up the DSE register to enable bit 1, the New Data repeatedly Available (NDV) bit.
  • Page 114 *RST (resets the instrument to default values) *IDN? (identifies the instrument, returns a string that can be used by the user in the software “Tektronix, PA4000, Serial Number, Firmware Version”). :INST:NSEL 1 (selects group 1) :WRG:3P3 (sets channel 1 and channel 2 for 3 phase 3 wire set-up as part of group 1).

  • Page 115: Software

    Software PA4000 download software The PA4000 has been designed so that the user can add new features simply by updating the firmware within the product. The firmware is updated by using a free PC software program. This program can be found on the PA4000 section of Tektronix’s web site (www.Tektronix.com).
  • Page 116 CAUTION. Do not remove power from the PA4000 during the download. During the final section of the download, the PA4000 screen will go blank and the blue [SHIFT] LED will blink. Once the download is complete, the PA4000 will restart automatically and will then be ready for use.

  • Page 117: Specifications

    , DC to 1 MHz, continuous connection 50 V for 1 second High and low input impedance to ground: 45 pF Analog card power supply ±15 V supply outputs (optional) ±15 V ±5%, 250 mA max (protected) per analog card output PA4000 Power Analyzer...

  • Page 118: Power Input

    80 % for temperatures up to 31 °C decreasing linearly to 50 % relative humidity at 40 °C Optional parts GPIB card The GPIB card enables the PA4000 to be control using the industry standard IEEE 488 instrument protocol. This option (Opt. GPIB) is factory installed. PA4000 Power Analyzer...

  • Page 119: Communication Ports

    Specifications Transducer power supply The PA4000 can have an optional ±15 V supply for use with external transducers. The supply is capable of supplying 250 mA per rail, per analog card. This option (Opt. 15V) is factory installed. Communication ports The PA4000 is fitted with RS232, Ethernet, and USB as standard.
  • Page 120 D- (i/p and o/p) D+ (i/p and o/p) 0V (o/p) USB peripheral USB 2.0 compatible. Will work with any USB 2.0 system. Full Speed (12 Mbits/sec). Description VBus (i/p) D- (i/p and o/p) D+ (i/p and o/p) 0 V (i/p) PA4000 Power Analyzer...

  • Page 121: Auxiliary Inputs/Outputs

    Status indicator LEDs: Green – Connection established Yellow – Data activity Auxiliary inputs/outputs The PA4000 is fitted with a number of auxiliary inputs and outputs. They are: 4 Analog inputs 2 counter inputs 4 digital outputs The pin connections on the auxiliary connect are:...

  • Page 122: Host/Client Port

    Hertz (Hz) True Power Watt (W) Power factor Apparent Volt-Amps Power (VA) Reactive Volt-Amps Power Reactive (VAr) (+)ve Peak Volt (V) Voltage (-)ve Peak Volt (V) Voltage (+)ve Peak Amp (A) Current (-)ve Peak Amp (A) Current PA4000 Power Analyzer...
  • Page 123 Voltage Crest Factor Current Crest Factor Voltage Total Harmonic Distortion Voltage Distortion Factor Voltage Telephone Influence Factor Current Total Harmonic Distortion Current Distortion Factor Current Telephone Influence Factor Impedance Ohm (θ) Resistance Ohms (Ω) Reactance Ohms (Ω) PA4000 Power Analyzer...

  • Page 124: One Phase, Three Wire Sum Formulae

    Watt (W) harmonic f = real part of fundamental V or I fundamental q=imaginary or quadrature part of V or I V and I fundamental are complex numbers in the form r+jq One phase, three wire SUM formulae PA4000 Power Analyzer...

  • Page 125: Three Phase, Four Wire Sum Formulae

    ±0.2% of Reading ± 0.1% of Range + (0.01 * F)% of reading ±0.05 V – Low Bandwidth ±0.2% of Reading ± 0.1% of Range + (0.01 * F)% of reading ±0.5 V – High Bandwidth CF Accuracy (valid for a crest factor of 1 to 10) PA4000 Power Analyzer...
  • Page 126 (valid for a crest factor of 1 to 10) Frequency 10Hz to 1MHz 0.05% of reading 0.1Hz to 10Hz 0.1% of reading Power – W, VA, VAr, and PF W Accuracy VA Accuracy VAr Accuracy PF Accuracy Fundamental Power – Wf, VAf, VArf, and PFf PA4000 Power Analyzer...
  • Page 127 If no frequency is measured, then the signal is considered DC for the purpose of accuracy. Specifications are valid only when applicable voltage and current inputs are > 10% of range. The exception is harmonics where the specification is valid when the magnitude of the harmonic is >2% of range. PA4000 Power Analyzer...
  • Page 128 :NAME, 79 Features and abilities, xiii datalog, 85 return results repeatedly, 92 basic features, xiii :DSE, 65 :RNG, 79 :DSE?, 65 *RST, 65 :DSR?, 65 :SCL, 82 :DVC, 65 :SEL, 68 *ESE, 64 select and return result, 91 PA4000 Power Analyzer...
  • Page 129 39 systems, 59 voltage, 27 minimum hold columns, 39 overview, 59 SUM results column, 39 Menu system, 33 main menu, 33 Safety Summary, vi measurements, 33 Software, 94 menu items, 33 PA4000 download navigation, 33 software, 94 PA4000 Power Analyzer...
  • Page 130 98 power supply, 97 Status reporting, 60 display data status enagle register, 62 display data status register, 62 standard event status enable register, 63 standard event status register, 63 status byte, 60 status byte register, 61 PA4000 Power Analyzer...

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