BIRD 4421B540-2 User manual

SENSOR INTERFACE MODULE
MODEL
4421B540-2
Operation Manual
©Copyright 2017 by Bird Technologies, Inc.
Instruction Book Part Number 920-4421B540-2 Rev. A

i
Safety Precautions
WARNING
Keep Away From Live Circuits
Operating Personnel must at all times observe general safety precautions. Do
not replace components or make adjustments to the inside of the test
equipment with the high voltage supply turned on. To avoid casualties,
always remove power.
WARNING
Shock Hazard
Do not attempt to remove the RF transmission line while RF power is present.
WARNING
Do Not Service Or Adjust Alone
Under no circumstances should any person reach into an enclosure for the
purpose of service or adjustment of equipment except in the presence of
someone who is capable of rendering aid.
WARNING
Safety Earth Ground
An uninterruptible earth safety ground must be supplied from the main
power source to test instruments. Grounding one conductor of a two
conductor power cable is not sufficient protection. Serious injury or death
can occur if this grounding is not properly supplied.
WARNING
Resuscitation
Personnel working with or near high voltages should be familiar with modern
methods of resuscitation.
WARNING
Remove Power
Observe general safety precautions. Do not open the instrument with the
power on.
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.

Safety Precautions
ii
Safety Symbols
WARNING
Warning notes call attention to a procedure, which if not correctly
performed, could result in personal injury.
CAUTION
Caution notes call attention to a procedure, which if not correctly performed,
could result in damage to the instrument.
The caution symbol appears on the equipment indicating there is
important information in the instruction manual regarding that
particular area.
Note: Calls attention to supplemental information.
Caution Statements
CAUTION
4421B540-2 Sensor Interface Module must be unplugged from the power
supply when making connections or disconnections to the power sensor.
CAUTION
Before connecting the power sensor to a transmission line, refer to the power
sensor instruction book. Note the potential hazard when working with RF
power.
The following equipment cautions appear in the text and are repeated here for
emphasis.
On page 6.
On page 7.

Sensor Interface Module
iii
Safety Statements
USAGE
ANY USE OF THIS INSTRUMENT IN A MANNER NOT SPECIFIED BY
THE MANUFACTURER MAY IMPAIR THE INSTRUMENT’S SAFETY
PROTECTION.
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.
UTILISATION
TOUTE UTILISATION DE CET INSTRUMENT QUI N’EST PAS
EXPLICITEMENT PRÉVUE PAR LE FABRICANT PEUT
ENDOMMAGER LE DISPOSITIF DE PROTECTION DE
L’INSTRUMENT.
IMPIEGO
QUALORA QUESTO STRUMENTO VENISSE UTILIZZATO IN MODO
DIVERSO DA COME SPECIFICATO DAL PRODUTTORE LA
PROZIONE DI SICUREZZA POTREBBE VENIRNE COMPROMESSA.

Safety Precautions
iv
SERVICE
SERVICING INSTRUCTIONS ARE FOR USE BY SERVICE - TRAINED
PERSONNEL ONLY. TO AVOID DANGEROUS ELECTRIC SHOCK, DO
NOT PERFORM ANY SERVICING UNLESS QUALIFIED TO DO SO.
SERVICIO
LAS INSTRUCCIONES DE SERVICIO SON PARA USO EXCLUSIVO
DEL PERSONAL DE SERVICIO CAPACITADO. PARA EVITAR EL
PELIGRO DE DESCARGAS ELÉCTRICAS, NO REALICE NINGÚN
SERVICIO A MENOS QUE ESTÉ CAPACITADO PARA HACERIO.
WARTUNG
ANWEISUNGEN FÜR DIE WARTUNG DES GERÄTES GELTEN NUR
FÜR GESCHULTES FACHPERSONAL.
ZUR VERMEIDUNG GEFÄHRLICHE, ELEKTRISCHE SCHOCKS, SIND
WARTUNGSARBEITEN AUSSCHLIEßLICH VON QUALIFIZIERTEM
SERVICEPERSONAL DURCHZUFÜHREN.
ENTRENTIEN
L’EMPLOI DES INSTRUCTIONS D’ENTRETIEN DOIT ÊTRE RÉSERVÉ
AU PERSONNEL FORMÉ AUX OPÉRATIONS D’ENTRETIEN. POUR
PRÉVENIR UN CHOC ÉLECTRIQUE DANGEREUX, NE PAS
EFFECTUER D’ENTRETIEN SI L’ON N’A PAS ÉTÉ QUALIFIÉ POUR CE
FAIRE.
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.

Sensor Interface Module
v
About This Manual
This manual covers the operating and maintenance instructions for the
following models:
Changes to this Manual
We have made every effort to ensure this manual is accurate. If you discover
any errors, or if you have suggestions for improving this manual, please send
your comments to our Solon, Ohio factory. This manual may be periodically
updated. When inquiring about updates to this manual refer to the part number
and revision on the title page.
Chapter Layout
Introduction — Describes the features of the 4421B540-2, lists equipment
supplied and optional equipment, and provides power-up instructions.
Theory of Operation — Describes how the 4421B540-2 works and its
functions.
Installation — Describes the how to install the 4421B540-2.
Operation — Describes procedures require for operating the 4421B540-2.
Maintenance — Lists routine maintenance tasks as well as troubleshooting
for common problems. Specifications and parts information are also included.
4421B540-2

vi
Table of Contents
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Caution Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Safety Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Changes to this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Chapter Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Purpose and Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Items Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Bird’s Virtual Power Meter Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Interface Module Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Items required but not supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Chapter 2 Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Sensor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chapter 3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Download and Install VPM3 software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Driver installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connecting the 4421B540-2 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 4 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Equipment Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 5 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Preparation for Shipment or Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1
Chapter 1 Introduction
This instruction book is for operators of the Bird 4421B540-2 Sensor Interface
Module. This section contains introductory information including items
supplied.
Purpose and Function
The purpose of the 4421B540-2 Sensor Interface Module is to provide a means
of communicating with Bird 402X Series power sensors instead of using the Bird
4421 RF Power Meter.
Items Supplied
Figure 1 Items Supplied
Item Qty Name Description
1 1 Sensor Cable Used to connect the 4421B540-2 to the
power meter
2 1 4421B540-2 Interconnected between computer and
Series 4020 power sensor.
3 1 Instruction Book Instructions on using the 4421B540-2
4 1 Power Supply +12V Power Supply
5 1 USB Cable USB A-B Cable

Introduction
2
Bird’s Virtual Power Meter Software
Bird’s VPM3 software provides a graphical user interface for communicating
with Bird 402X Series Sensors.
VPM3 software is available for download from Bird’s website:
http://www.Birdrf.com
Search = VPM3
Interface Module Driver
The interface module requires a USB driver, included with the VPM3 software,
to operate properly. VPM3 software must be installed on any PC
communicating with the interface module.
Items required but not supplied
The following items are required for use with the interface module but are not
supplied:
PC meeting the following requirements
Vista Sp1, Windows 7, Windows 8, Windows 10
Web Browser
Adobe Reader
800 x 600, 256 color display (1280 x 720, 16 bit or higher resolution
recommended)
200 MB free disk space
1 available USB port
Bird 402X Power Sensor

3
Chapter 2 Theory of Operation
Theory of operation is included to provide a level of understanding needed to
avoid potential errors. The following paragraphs describe the operation of the
402X power sensors, the equipment needed to calibrate them, and the
4421B540-2.
Sensor Operation
Inherent to the operation of the power sensor is the linearization circuitry of the
diode. With this proprietary method the power sensor is able to linearize the
otherwise nonlinear response of the diode. This enables the sensor to be
calibrated at relatively low power with less cost and effort and still maintain
accurate measurements at higher power levels.
In addition to the linearizion of the diode output, a temperature compensating
network is added to counteract drift commonly encountered in other power
meters that use diode sensors.
Since all coupling devices exhibit variations in coupling over a wide bandwidth,
calibration must take place to normalize the frequency response of the 402X
power sensor. Each power sensor has a unique, but repeatable, frequency
versus amplitude response. This information is stored in memory in the sensor
and used by the microprocessor to assign a correction factor to the measured
frequency.
The RF signal is sampled by a detector circuit. Each sensor has at least two
detectors, one for each direction i.e. forward and reflected. Some sensors have
two detectors for each power direction to cover the frequency bandwidth. The
sensors automatically select which detector to use, with the aid of the
frequency counter.
Since the calibration is stored in memory within the sensors, a calibration key is
necessary to unlock the memory and allow a change in calibration to take place.
This calibration key is required only when the sensor’s calibration needs to be
corrected.