88
This figure corresponds to 80 measurements of 250µs. To get the 250µs measurement,
you must therefore divide the figure obtained by 80.
The measurement becomes 316352/80 = 2802.4
The measurement thus calculated must be linearised according to the following formula to get
the true measurement:
Measurement = Xa + b
The coefficients a and b are given in the table below, they depend on the type of probe used,
which can be found from the probe code given by reading the state of the instrument.
In the example used above, if the coefficient a is 1.893 x 10
-3
i.e. 0.00163 and coefficient b
is 7.300, the real measurement becomes :
2802.4 x 0. 7.300 = 12.60V/m
Each probe code contains 6 linearisation slopes whose coefficients depend on the measurement.
The table below indicates the number of the linearisation table allocated to each of the 17
probe codes.
Probe code
Linearisation table number
Measurement unit
from 255 to 251
Measurement blocked
Display ANT
from 250 to 237
01
V/m
from 236 to 223
02
´
from 222 to 209
03
´
from 208 to 195
04
´
from 194 to 181
05
´
from 180 to 167
06
´
from 166 to 153
07
´
from 152 to 139
08
´
from 138 to 125
09
A/m
from 124 to 111
10
´
from 110 to 97
11
´
from 96 to 83
12
´
from 82 to 69
13
´
from 68 to 55
14
´
from 54 to 41
15
´
from 40 to 27
16
´
from 26 to 0
17
´
