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John Chubb Instrumentation Ltd Unit 30, Lansdown Industrial Estate, Gloucester Road, Cheltenham, GL51 8PL, UK. Tel: +44 (0)1242 573347 Fax: +44 (0)1242 251388 email: [email protected] ______________________________________________________________________________________________ USER MANUAL: JCI 255 CALIBRATOR UNIT UM255 - Issue 7: June 2006 Contents: 1. Introduction 2. Operational features 3. Calibration procedure 3.1 General points 3.2 Settings for simple calibration checks 3.3 Formal calibration 4. Recalibration of JCI 255 unit 5. Personnel safety 6. Specification features References Annex 1: Calibration of corona charge decay measuring instrumentation Figures 1-3 Registered in England No 5798844. VAT GB 392 007 172 Registered Office: Unit 30, Lansdown Industrial Estate, Gloucester Road, Cheltenham, GL51 8PL, UK
