BIRD THRULINE 4024 User Manual

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Thruline

®

RF Power Meter Model 4421

and

Thruline

®

Directional

Rf Power Sensors

4020 Series, 4027A Series,

4027F Series, and 4028 Series

Operation Manual

©Copyright 2016 by Bird Electronic Corporation

Instruction Book Part Number 920-4421 Rev W

Thruline

®

is a Registered Trademark

of Bird Electronic Corporation

Table of Contents

Other manuals for BIRD THRULINE 4024

Instruction Book62 pages

Questions and Answers:

K
kennethbaileyAug 5, 2025
How to troubleshoot a BIRD THRULINE 4024 Measuring Instruments power meter with no power?
- W
  wilsonpatrickAug 5, 2025
  If your BIRD Measuring Instruments power meter has no power, check the following: * Ensure the batteries are charged; if not, recharge them. * Verify the AC power cord is connected. * Make sure the ON/OFF rocker switch on the rear panel is set to ON. * If using a Cal Cart, confirm its AC power cord is connected. * Check the fuse rating and replace the fuse if it is blown.
E
Erica MorganAug 9, 2025
What to do if the display of my BIRD THRULINE 4024 Measuring Instruments shows dashes moving across the screen?
- M
  Melissa OsborneAug 9, 2025
  If your BIRD Measuring Instruments power meter displays dashes moving across the screen, ensure the sensor cable is properly connected to both the power meter and the power sensor. If the cable is connected correctly, the cable might be defective, so replace it.
J
James SolisAug 13, 2025
Why is the IEEE-488 Interface on my BIRD Measuring Instruments not responding?
- W
  wmeyerAug 13, 2025
  If the IEEE-488 Interface of your BIRD Measuring Instruments does not respond, verify that the address in the interface program matches the address setting on the DIP switches of the interface module. If they don't match, change either the program or the DIP switch setting to ensure they are the same. Check if the power meter fails the self-test. If it does, replace the I/O hub PCB. Also, verify the IEEE cable is not defective and replace it if necessary.
J
Jacob SmithAug 18, 2025
What to do if the RS-232 Interface on my BIRD THRULINE 4024 fails to respond?
- F
  flynchAug 18, 2025
  If the RS-232 Interface of your BIRD Measuring Instruments does not respond and fails the J0 self-test command, ensure the DIP switches are set correctly. If the switches are correctly set, the RS-232 cable may be defective; replace it with a new one.
C
Christopher GeorgeAug 22, 2025
Why does my BIRD Measuring Instruments power meter turn off while on battery power?
- J
  Jason GreenAug 22, 2025
  If your BIRD Measuring Instruments power meter turns off while on battery power, and the display shows “LO BAT”, recharge the battery. If “LO BAT” is not displayed, the meter should be returned for service.
J
Jonathan CastanedaAug 26, 2025
What does it mean if my BIRD Measuring Instruments power meter displays 'TALK' with RS-232 but doesn't operate correctly?
- B
  Bryan WeaverAug 26, 2025
  If, with the RS-232, the power meter displays “TALK” but does not operate as expected, verify that DIP switch 2 is set to ON for “talk/listen” operation or OFF for “talk always”. Also, ensure DIP switch 1 is set as indicated.
C
Caleb MaldonadoAug 30, 2025
What should I do if the display on my BIRD THRULINE 4024 is blank or not updating?
- R
  Robert CarterAug 30, 2025
  If the display of your BIRD Measuring Instruments is blank or not updating, and the batteries have not been charged, recharge the battery. If the batteries are charged, return the meter for service.

BIRD THRULINE 4024 Specifications

General

Brand	BIRD
Model	THRULINE 4024
Category	Measuring Instruments
Language	English

Summary

Safety Precautions

General Safety Warnings

Key safety precautions like avoiding live circuits, shock hazards, and proper grounding.

Equipment Caution Statements

Service Safety Instructions

Battery Safety Precautions

AC Power and Fuse Safety

Chapter 2: Installation

Sensor and RF Line Connection

Instructions for connecting the RF power sensor and RF line.

Chapter 3: Operating Instructions

Push Button Functions

Explains the function of each push button on the meter.

Error Codes and Audible Warnings

Lists error codes and explains audible warnings.

Chapter 4: IEEE-488 GPIB Interface

GPIB Description and Connector

Overview of the GPIB interface and its connector pin assignments.

GPIB Command Syntax and Bus Commands

Device and Group Commands

Serial Polling and Status Byte

Device Dependent Commands

Measurement Commands

Details commands for measurement modes like Forward, Reflected, SWR, and Return Loss.

SRQ Mask and Status Commands

Chapter 5: RS-232 Interface

RS-232 Description and Connector

RS-232 Setup

RS-232 Command Syntax

Explains the syntax for RS-232 commands.

RS-232 General Bus Commands

RS-232 Device Dependent Commands

RS-232 Measurement Commands

Details commands for RS-232 measurement modes.

RS-232 Status and Error Reporting

Explains RS-232 commands for status and error reporting.

Chapter 6: Maintenance

Cleaning Procedures

Instructions for cleaning the power meter and sensors.

Troubleshooting Guide

Troubleshooting table for common problems and their causes/corrections.

Functional and Button Tests

Power Meter Repair

Replacing Fuses

Step-by-step guide for replacing fuses in the AC module.

Battery Replacement Overview

Introduces the process for replacing internal rechargeable batteries.

Replacing Older Model Batteries

Detailed steps for replacing batteries in older model units.

Replacing Newer Model Batteries

Detailed steps for replacing batteries in newer model units.

Battery Assembly Removal

Replacement Parts

Replacement Part Numbers

Lists part numbers for replacement components.

Customer Service

Service and Contact Information

Provides information on service procedures and contact details.

Limited Warranty

Standard Warranty Terms

Outlines the standard warranty conditions for the products.

Special Lifetime Sensor Warranty

Details the lifetime warranty for specific power sensor heads.

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