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ELECTRA/SELECTRA
Ratemeter
Operators Manual
March 2004

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Summary of Contents for Thermo Electron ELECTRA

  • Page 1 ELECTRA/SELECTRA Ratemeter Operators Manual March 2004...
  • Page 3 © Thermo Electron Corporation 2005 ALL RIGHTS RESERVED. REPRODUCTION IN WHOLE OR IN PART OF ALL MATERIAL IN THIS PUBLICATION, INCLUDING DRAWINGS AND DIAGRAMS, IS FORBIDDEN. THIS INSTRUCTION MANUAL IS CONFIDENTIAL TO THERMO ELECTRON CORPORATION AND IS SUPPLIED FOR USE ONLY IN...
  • Page 5 EU Member State, and this product should be disposed of or recycled through them. Further information on Thermo Electron’s compliance with these Directives, the recyclers in your country, and information on Thermo Electron products which may assist the detection of substances subject to the RoHS Directive are available at...
  • Page 7 RATEMETER TYPE ELECTRA & SELECTRA CONTENTS 01.03.04 1. INTRODUCTION....................1 1.1 GETTING STARTED: QUICK OPERATION GUIDE ............1 1.2 BASIC DESCRIPTION......................3 2. DETAILED DESCRIPTION ................5 2.1 CASE ............................5 2.2 ELECTRONICS ........................5 2.3 PROBE CALIBRATION ......................6 2.4 PROBE INTERCHANGEABILITY (SELECTRA ONLY) ...........6 3.
  • Page 9 6. SELF TEST ROUTINES AND ERROR MESSAGES ........45 6.1 SELF TEST ROUTINES.......................45 6.2 ERROR MESSAGES ......................47 7. MAINTENANCE ....................49 7.1 CLEANING INSTRUCTIONS .....................49 8. UPGRADES......................50 DRAWINGS GENERAL ASSEMBLY E38718/A, B & C OUTLINE DRAWING C38719 ( ii )
  • Page 11: Safety Information

    SAFETY INFORMATION WARNING SYMBOLS The following is an explanation of the warning symbols seen on the instrument. Please read this information before using and/or maintaining this equipment. As seen on End Plate 1 near the battery compartment lid. CAUTION: Only use battery types defined in this manual complying with IEC 86-1&2.
  • Page 13: Power Supply

    As seen on the component side of the HV/Amplifier Board Type 5460A/B/C. CAUTION: Risk of hazardous electric shock. circuit board poses no danger when inside the instrument however only qualified, approved Service personnel should attempt to service the instrument. Details are contained in the Service Manual.
  • Page 15 • The instrument should be operated with batteries only in a harsh r.f. environment. In other environments, only Thermo Electron approved DC Adaptors should be used in place of batteries. These Adaptors include a ferrite tube close to the +5 V connector.
  • Page 17 INTRODUCTION The ELECTRA is a portable ratemeter for use with a variety of GM and Scintillation probes for the measurement of Radioactive Contamination and Radiation. The SELECTRA is a portable ratemeter derived from the ELECTRA, dedicated for use with the Thermo Electron range of ‘intelligent’ GM and Scintillation ‘I’ series probes for the measurement of Radioactive Contamination and Radiation.
  • Page 18 Integrate → Rate 1.1.3 ⇒ press Ratemeter Mode 1.1.4 Modify Parameters ⇒ First press Parameter List ⇒ then use to find the parameter then press Parameter flashes to show edit mode then use to select the ⇒ 19.50 required value then press new value registered...
  • Page 19: Basic Description

    BASIC DESCRIPTION The unit consists of two circuit boards, an HV/Amplifier board and a Processor and Interface board, housed in a painted rectangular section aluminium extrusion. Two end plates hold the boards in place and locate the battery holder. A further two plastic end caps prevent unauthorised adjustment of the internal switches, adjustment of the sounder audible level and interference with the power sources available.
  • Page 20 A test mode is provided to aid customer testing and error messages are provided in normal use to assist fault finding and diagnosis. There are two versions of the ELECTRA: ELECTRA1A is to be fitted with a PET probe connector.

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