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BIRD THRULINE 4021 Instruction book

Manual is about: RF Power Meter. DIRECTIONAL RF POWER SENSORS 4020 SERIES; 4027A SERIES; 4027F SERIES

Summary of THRULINE 4021

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    Instruction book thruline ® rf power meter model 4421 and thruline ® directional rf power sensors 4020 series, 4027a series, and 4027f series ©copyright 2003 by bird electronic corporation instruction book part number 920-4421 rev g thruline ® is a registered trademark of bird electronic corporation...

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    I safety precautions the following are general safety precautions that are not necessarily related to any specific part or procedure and do not necessarily appear elsewhere in this publication. These precautions must be thoroughly understood and apply to all phases of operation and maintenance. Keep...

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    Bird 4421 rf power meter ii safety symbols the caution symbol appears on the equipment indicating there is important information in the instruction manual regarding that particular area. See page 50 for specific cautions. Note: calls attention to supplemental information. Warning statements the foll...

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    Iii caution statements the following equipment cautions appear in the text whenever the equipment is in danger of damage and are repeated here for emphasis. Safety statements usage any use of this instrument in a manner not specified by the manufacturer may impair the instrument’s safety protection....

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    Bird 4421 rf power meter iv uso el uso de este instrumento de manera no especificada por el fabricante, puede anular la protecciÓn de seguridad del instrumento. Benutzung wird das gerÄt auf andere weise verwendet als vom hersteller beschrieben, kann die gerÄtesicherheit beeintrÄchtigt werden. Utilis...

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    V assistenza tecnica le istruzioni relative all’assistenza sono previste esclusivamente per il personale opportunamente addestrato. Per evitare pericolose scosse elettriche non effettuarre alcuna riparazione a meno che qualificati a farla. Units are equipped with rechareable batteries. These are to ...

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    Bird 4421 rf power meter vi about this manual this manual covers the bird 4421 rf power meter, bird 4020 series power sensors, bird 4027a series precision power sensors, and bird 4027f series precision filtered power sensors. Specific models include: this instruction book is arranged so that essenti...

  • Page 9: Table of Contents

    Vii table of contents safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . I about this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . Vi introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 power meter . . . . . . . . . . . . . . . . . ...

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    Viii setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 dip switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 talker-only mode . . . . . . . . . . . . . . . . . . . . . ....

  • Page 11: Chapter 1

    1 chapter 1 introduction power meter the bird 4421 rf power meter is one component of a complete rf power measurement system. An rf power sensor such as a bird 4021 is also required. The system can be controlled with the front panel buttons, or remotely with the optional interfaces. Items supplied y...

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    Bird 4421 rf power meter 2 power sensors power sensors are available with a variety of connectors; see “available connectors” on page 50 for a complete list. Since the accuracy is critically dependent on the connectors used at calibration, do not remove or change the connectors. 4020 series bird 402...

  • Page 13

    Introduction 3 4027f series bird 4027f series power sensors are similar to the 4027a series. However, additional filtering allows the 4027f to ignore harmonics of the signal being measured. The 4027f is also less sensitive to am components of the signal. 4027f sensors are accurate to ±1% at specifie...

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    Bird 4421 rf power meter 4.

  • Page 15: Chapter 2

    5 chapter 2 installation this chapter provides information on preparing the bird 4421 for use. Interface module to use the bird 4421 remotely, the optional interface module must be installed (see figure 3): 1. Unscrew and remove the interface access cover on the power meter’s rear panel. 2. Remove t...

  • Page 16

    Bird 4421 rf power meter 6 sensor connection 1. Turn off the on/off rocker switch on the meter’s rear panel. 2. Align the latch on the cable with the notch of the “power sensor” socket on the power meter’s rear panel. 3. Insert the cable until it clicks into place. 4. Connect the other end of the se...

  • Page 17

    Installation 7 230v ac power setting ac voltage the 4421 is factory set for 115 vac input voltage. To change the voltage setting: 1. Open the ac module door and remove the voltage selector drum. 2. Rotate the voltage selector drum to the desired voltage: y for 115 vac, position the drum so that the ...

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    Bird 4421 rf power meter 8.

  • Page 19: Chapter 3

    9 chapter 3 operating instructions this chapter describes operator controls and indicators on the bird 4421 rf power meter. If your power meter is equipped for remote operation using a gpib or rs-232 controller, refer to the instructions in chapter 4 or chapter 5 respectively. Push button functions ...

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    Bird 4421 rf power meter 10 error codes the bird 4421 displays error codes when the rf power is either below the selected range (underrange) or above the selected range (overrange). Figure 7 displays the error codes and figure 8 lists the function limits. Audible warning if the rf power level exceed...

  • Page 21: Chapter 4

    11 chapter 4 ieee-488 gpib interface this chapter discusses setup of the ieee-488 interface module and describes the ieee commands that apply to the bird 4421. Operators should understand ieee standard 488-1978 and have basic computer programming skills before attempting to write any programs. Cauti...

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    Bird 4421 rf power meter 12 description the bird 4421 ieee-488 interface module is a plug-in board that can be factory or field installed. An eight-position dip switch is used to set operational conditions and interface addresses. The current bus status is displayed on the bottom line of the display...

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    Ieee-488 gpib interface 13 interface capabilities the interface module’s capability function codes are listed in figure 10. Indicators the bottom line of the power meter’s display shows indicators describing the status of the bird 4421 when used with the ieee interface. These are: remote: when remot...

  • Page 24

    Bird 4421 rf power meter 14 setup dip switch after installing the interface module, set the interface to addr (addressable) by turning dip switch 1 on. This makes the 4421 respond to controller commands. Note: a dip switch is on when pressed in at the top, and off when pressed at the bottom. Set the...

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    Ieee-488 gpib interface 15 command syntax the bird 4421 accepts two types of commands. General bus commands are commands, such as device clear (dcl), that apply to any ieee interfaced device. Device-dependent commands are specific to the 4421. If an invalid command is sent to the unit, an error cond...

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    Bird 4421 rf power meter 16 general bus commands the general bus commands supported by the ieee-488 interface module are listed in figure 12. The syntax for executing general commands varies among controllers; check the documentation supplied with your controller for the proper command structure. Re...

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    Ieee-488 gpib interface 17 interface clear (ifc) function terminates all bus activity and passes control to the system controller. Remarks all devices are set to talker and listener idle states. Ren is set to false. Remote, talk, listen, and local lockout modes are cancelled, and their indicators ar...

  • Page 28

    Bird 4421 rf power meter 18 serial polling enable/disable (spe/spd) function enables or disables the serial polling sequence. Remarks the spe command puts all devices in serial poll mode waiting to be addressed. The spd command clears the srq bit (bit 6) and ends the polling sequence. When addressed...

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    Ieee-488 gpib interface 19 device dependent commands the device-dependent commands used by the 4421 power meter are listed in figure 15, organized by category. Note: the programming card also has a complete command list. Figure 15 ieee-488 device dependent command summary category command descriptio...

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    Bird 4421 rf power meter 20 forward carrier wave (fc) forward dbm (fd) reflected carrier wave (rc) reflected dbm (rd) function selects forward or reflected rf power measurement mode. Remarks measurement results are returned in watts or dbm. Standing wave ratio (sw) return loss (rl) function selects ...

  • Page 31

    Ieee-488 gpib interface 21 range (rxx) function selects a measurement range listed in figure 16. Remarks if the selected range is outside the range of the connected power sensor, the command is ignored. Terminators (yx) function selects the characters that follow the end of a data string. Set x to: ...

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    Bird 4421 rf power meter 22 prefixes (px) function turns the prefix mode on or off. Set x to: y “y” to enable prefixes. Y “n” to disable prefixes. Remarks prefixes are sent over the bus with the measurement, and indicate the status of the current measurement (see figure 17 for examples): y “fc”,”fd”...

  • Page 33

    Ieee-488 gpib interface 23 triggers (tx) function selects the condition which will trigger a reading (see figure 18). Remarks failure to trigger device before requesting a reading will lock the bus. T1 halts the bus until a reading is available. T0 and t1 do not set the measurement complete srq. T2,...

  • Page 34

    Bird 4421 rf power meter 24 status (ux) function reads a status word and returns the information as a string. Set x to: y “0” for machine status. Y “1” for error status. Y “2” for revision history. Remarks after sending the status command, a status word is sent the next time the unit is addressed to...

  • Page 35

    Ieee-488 gpib interface 25 revision history word (u2): the format of the revision history word is shown in figure 22. Self test (j0) function initiates a hardware and software test. Remarks results are stored in the u1 status word (see “status” on page 24). “j0” must be sent each time before reading...

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    Bird 4421 rf power meter 26 writable store (wxxxxxx) function storage for six bytes of ascii data. Remarks data stored is lost when the 4421 is turned off. Data is sent back as part of the u2 status word..

  • Page 37: Chapter 5

    27 chapter 5 rs-232 interface this chapter discusses setup of the rs-232 interface module and describes the rs-232 commands that apply to the bird 4421. Operators should understand eia standard rs-232-c and have basic computer programming skills before writing any programs. Description the bird 4421...

  • Page 38

    Bird 4421 rf power meter 28 setup dip switch after installing the interface module, set the dip switches according to application needs and the requirements of the controller. Available settings and factory defaults are listed in figure 24. Note: a dip switch is on when pressed in at the top, and of...

  • Page 39

    Rs-232 interface 29 4. Send the character u (hexadecimal 55) from the controller to the power meter. 5. Wait 1 second. 6. If the power meter’s front panel displays listen, the baud rate has been determined. If not, repeat steps 4 and 5. If, after 30 seconds, the module cannot absolutely determine a ...

  • Page 40

    Bird 4421 rf power meter 30 general bus commands the general bus commands supported by the rs-232 interface module are listed in figure 25. Initialize (int) function resets the bird 4421 and returns it to the factory defaults. Remarks if int is linked with any other command within a string, it must ...

  • Page 41

    Rs-232 interface 31 baud select (bx) function selects a baud rate listed in figure 26. Remarks when the meter recognizes a valid bx command, its baud rate is immediately changed. (the controller is assumed to be transmitting at the new rate; otherwise sending commands would not be possible.) this co...

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    Bird 4421 rf power meter 32 device dependent commands the device-dependent commands used by the 4421 power meter are listed in figure 27, organized by category. Note: the programming card also has a complete command list. Figure 27 rs-232 device dependent command summary category command description...

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    Rs-232 interface 33 forward carrier wave (fc) forward dbm (fd) reflected carrier wave (rc) reflected dbm (rd) function selects forward or reflected rf power measurement mode. Remarks measurement results are returned in watts or dbm. Standing wave ratio (sw) return loss (rl) function selects swr or r...

  • Page 44

    Bird 4421 rf power meter 34 range (rxx) function selects a measurement range listed in figure 28. Remarks if the selected range is outside the range of the connected power sensor, the command is ignored. Terminators (yx) function selects the characters that follow the end of a data string. Set x to:...

  • Page 45

    Rs-232 interface 35 prefixes (px) function turns the prefix mode on or off. Set x to: y “y” to enable prefixes. Y “n” to disable prefixes. Remarks prefixes are sent over the bus with the measurement, and indicate the status of the current measurement (see figure 29 for examples): y “fc”,”fd”,”rc”,”r...

  • Page 46

    Bird 4421 rf power meter 36 status (ux) function reads a status word and returns the information as a string. Set x to: y “0” for machine status. Y “1” for error status. Y “2” for revision history. Remarks after sending the status command, a status word is sent the next time the unit is addressed to...

  • Page 47

    Rs-232 interface 37 revision history word (u2): the format of the revision history word is shown in figure 33. Self test (j0) function initiates a hardware and software test. Remarks results are stored in the u1 status word (see “status” on page 36). “j0” must be sent each time before reading the re...

  • Page 48

    Bird 4421 rf power meter 38.

  • Page 49: Chapter 6

    39 chapter 6 maintenance the bird 4421 power meter requires only simple, routine maintenance. Y wipe off dust and dirt regularly. Y check the connectors and cables for damage. Y clean the connector contacts with alcohol or dry cleaning solvent. Troubleshooting since the power meter and power sensor ...

  • Page 50

    Bird 4421 rf power meter 40 problem possible cause correction power meter has no power have the batteries been charged? Recharge the batteries is the ac power cord connected to the ac line? Connect ac power is the voltage selector drum set to the wrong line voltage? Change the selector setting (see ...

  • Page 51

    Maintenance 41 functional test this test determines whether the power meter or the sensor is malfunctioning. 1. Turn the power meter off. The on/off switch on the rear panel of the meter should be off and the ac power cable should be connected. 2. Turn on the on/off switch on the rear panel of the m...

  • Page 52

    Bird 4421 rf power meter 42 12. Press dbm. “dbm” should change to “swr”. 13. Press fwd. “swr” should change to “fwd”. “ ” should change to “.000 w”. 14. Press light. The back-light should turn on. 15. Press light. The back-light should turn off. 16. Press v (up). The power meter should change ranges...

  • Page 53

    Maintenance 43 customer service if you need to return the unit for any reason, contact the bird service center for a return authorization. All instruments returned must be shipped prepaid and to the attention of bird service center. Bird service center 30303 aurora road cleveland (solon), ohio 44139...

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    Bird 4421 rf power meter 44 specifications note: due to the wide variety of available connectors, frequency range and maximum power may be reduced. Insertion loss is specified with female n connectors. Choose connectors appropriate for the frequency and power of operation. Bird 4421 rf power meter f...

  • Page 55

    Maintenance 45 specifications common to all sensors impedance 50 ohms nominal vswr range 1.00 to 2.00 (40.0 to 9.5 db return loss) sampling rate approximately 2 readings/second calibration technique calibration vs. Frequency curve stored in nonvolatile memory in each sensor. Sensor output corrected ...

  • Page 56

    Bird 4421 rf power meter 46 bird 4020 series rf power sensors power range 4021, 4022 4024, 4025 300 mw – 1 kw 3 w – 10 kw frequency range 4021 4022 4024 4025 1.8 – 32 mhz 25 mhz – 1 ghz 1.5 – 32 mhz 100 khz – 2.5 mhz accuracy, fwd ± 3% insertion vswr (insertion loss) 4021, 4024, 4025 4022 1.05 (0.05...

  • Page 57

    Maintenance 47 caution changing the sensor’s connectors will invalidate calibration data, and may reduce the maximum power rating of the unit. Bird 4027a series rf power sensors power range 4027a12m 4027a25m 4027a35m 4027a60m 4027a100m 4027a150m all other models 300 mw – 1 kw 3 w – 9 kw 3 w – 7.5 kw...

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    Bird 4421 rf power meter 48 bird 4027f series rf power sensors power range 100 w – 10 kw frequency range 4027f2m 4027f10m 1.8 – 2.2 mhz 12 – 15 mhz power accuracy 15 to 35 °c (59 to 95 °f) 0 to 50 °c (32 to 122 °f) ± 1% ± 3% harmonic rejection, minimum 4027f2m 4027f10m frequency > 3.8 mhz: 30 db 3.6...

  • Page 59

    Maintenance 49 ieee-488 interface module logic levels meets all ieee standard 488-1978 specifications modes of operation switch and bus selectable talk only allows the 4421 to send to the bus keyboard- initiated measurements only addressable allows the 4422 to be addressed as talker or listener unde...

  • Page 60

    Bird 4421 rf power meter 50 replacement parts available connectors description qty part number fuse, iec (5 x 20 mm) type t 115 vac, 0.25 a 230 vac, 0.125 a 1 5a2257-10 5a2257-7 cord, ac power 115 vac 230 vac harmonized 1 5-1286 5a2416 cable, sensor 1 4421-038 ieee-488 bus interface module 1 4421-48...

  • Page 61: Limited Warranty

    Limited warranty all products manufactured by seller are warranted to be free from defects in material and workmanship for a period of one (1) year, unless otherwise specified, from date of shipment and to conform to applicable specifications, drawings, blueprints and/or samples. Seller’s sole oblig...

  • Page 62: Declaration of Conformity

    Declaration of conformity manufacturer: bird electronic corporation 30303 aurora road cleveland, ohio 44139-2794 product: rf power meter and sensors models: 4421 4021 4022 4024 4025 4027a2m 4027a4m 4027a10m 4027a12m 4027a25m 4027a35m 4027a60m 4027a250k 4027a400k 4027a800k 4027f2m 4027f10m the unders...