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Handbook · The practical half

Pre-use Genny and CAT Checks

Chapter 20 of 33 · printed page 12

Following a visual inspection to ensure the equipment is not obviously damaged, a calibration check must be undertaken. The following procedure is for Radiodetection CAT3 and CAT4 only.

Pull the on/off trigger on the unit; immediately as the display indicates all the icons, press and hold the depth button as indicated. The date is indicated as last calibration date or next calibration due date depending upon model and version. The screens that follow show the day, month and year in sequence — different models will vary. The figures below show the sequence on a CAT4.

The figures

5 from the printed chapter
Hand holding a CAT4 with every display segment lit (8.8.8) during the power-on self-test.
Fig 01Hand holding a CAT4 with every display segment lit (8.8.8) during the power-on self-test.
CAT4 display during the power-up sequence, reading 1.04-S.
Fig 02CAT4 display during the power-up sequence, reading 1.04-S.
CAT4 display during the power-up sequence, reading 22-D.
Fig 03CAT4 display during the power-up sequence, reading 22-D.
CAT4 display during the power-up sequence, reading 05-M.
Fig 04CAT4 display during the power-up sequence, reading 05-M.
CAT4 display during the power-up sequence, reading 14-Y.
Fig 05CAT4 display during the power-up sequence, reading 14-Y.
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Pre-use checks