Amprobe GP-2 Geo-Test Manual do Utilizador descarregar pdf (Página 11)

GP-2 GeoTest

EN - 11

secondary display on the left-hand side = 003 (no. of measurements = 3

means that 3 earth measurements have been taken consecutively)

secondary display on the right-hand side = average of the measurements

taken ((Val1+Val2)/no. of measurements = (0.90+0.96+0.93)/3 = 0.93Ω)

NOTE! A test with a result over 700Ω is not inserted in the calculation of average value.

Example:

measurement

Main display: 1,07Ω

Secondary display on the left-hand side: 1

Secondary display on the right-hand side: 1,07Ω

measurement

Main display: 4,15Ω

Secondary display on the left-hand side: 2

Secondary display on the right-hand side: 2,61Ω

measurement (not inserted in the average value)

Main display: 1018Ω

Secondary display on the left-hand side: 2

Secondary display on the right-hand side: 2,61Ω

Press CLR if you want to cancel the average value of the resistance and the no.

of measurements which are included in the calculation (displayed on the

secondary displays on the right-hand side and on the left-hand side

respectively). A screen similar to the following will be displayed:

0.960.96 ΩΩ

- - - - - - - - -- - -

The test results can be stored in memory by pressing SAVE (see paragraph

5.1).

NOTE! The resistance measurement is taken according to a 4-wire voltmetric method.

Therefore, it is not affected by the resistance value of the cables used: it is not

necessary to calibrate the cables or their extension.

SAVE

CLR

Last value of resistance

measured

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 40 41

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Amprobe GP-2 Geo-Test Manual do Utilizador Página 11