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E&I Locked On HI-Z-800-D Manual

Broadband matching transformers
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E&I Locked On
Broadband Matching Transformers
HIGH RF VOLTAGES MAY BE PRESENT AT THE OUTPUT OF THIS UNIT. All
operating personnel should use extreme caution in handling these voltages and be
thoroughly familiar with this manual.
Do not attempt to operate this unit prior to reading this manual.

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Summary of Contents for E&I Locked On HI-Z-800-D

  • Page 1 E&I Locked On Broadband Matching Transformers HIGH RF VOLTAGES MAY BE PRESENT AT THE OUTPUT OF THIS UNIT. All operating personnel should use extreme caution in handling these voltages and be thoroughly familiar with this manual. Do not attempt to operate this unit prior to reading this manual.
  • Page 2 Warranty Electronics & Innovation Ltd., (hereafter E&I) warrants for the period of three years from the date of original delivery, each unit to be free of defects in materials and workmanship. For the period of 36 months E&I will, at its option, repair or replace defective parts so as to render the unit fully operational such that it performs according to the original specifications;...

  • Page 3: Chapter 1 Introduction

    Chapter 1 Introduction Locked On is a series of broadband matching transformers covering the frequency spectrum from 500 KHz to 5 MHz. It is rated at 1000 watts of RF power for output impedances ranging from 6 – 800 . INSTRUMENTATION IDENTIFICATION Each unit is identified by a serial number tag on the back panel of the unit.

  • Page 4: Operation

    Chapter 2 Operation 2.1 INTRODUCTION The Locked On RF variable matching transformers are used to transform the input of 50 ohms to impedance ranging from 6 to 800 ohms over a frequency range of 500 KHz to 5 MHz. There are several models that have different options. There are low impedance and high impedance versions.

  • Page 5: Chapter 3 Technical Description

    (vi) Connect the input signal to the BNC input connector. 2.4 Cautions: (i) Do not apply an input signal unless AC is on (ii) Do not switch the impedance selector while RF is applied to the input unless you have an “H” version (iii) Do not apply more than 1000 watts Chapter 3 Technical Description 3.1 GENERAL DESCRIPTION...
  • Page 6 Here the T1 and S1 are shown: The LO-Z operates is the same way: January 2013 Rev A...
  • Page 7 Cooling is performed by a DC fan that is connected to the power supply. In the D option the power supply also supports control board that measures the forward and reflected RF power and the LCD display. The power supply is connected to line filter that is part of the AC input block, as shown below.
  • Page 8 Shown below is the rear of the unit. There is an air exhaust and the AC input block. Chapter 4 Safety: Do not attempt to operate this unit with the cover removed. High AC and DC voltages are present. The cover protects against electrical shock due to AC line voltages, high DC and RF fields.
  • Page 9 Appendix 1 January 2013 Rev A...

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