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Operating instructions
4point light 10W (V 4.58)
U
90,ref
= voltage at ADC with reference resistor, transmitter ON
U
0,Off
= voltage at ADC with reference resistor, transmitter OFF
U
90,Off
= voltage at ADC with reference resistor, transmitter OFF
The voltages will be corrected according to the following equations:
(
) (
)
(
)
(
)
(
) (
)
2
2
,
0
0
,
90
90
,
90
90
,
0
0
,
90
90
,
0
0
*
B
A
B
U
U
A
U
U
i
B
U
U
A
U
U
iB
A
U
U
i
U
U
U
Off
Off
Off
Off
Off
Off
Korr
+
−
−
−
+
−
+
−
=
+
−
+
−
=
U
0
, U
90
= voltage at ADC
The following voltages will be displayed and saved:
(
)
(
)
)
(
*
*
*
2
2
,
90
90
,
0
0
,
0
I
k
B
A
B
U
U
A
U
U
U
Off
Off
Korr
+
−
+
−
=
(
)
(
)
)
(
*
*
*
2
2
,
0
0
,
90
90
,
90
I
k
B
A
B
U
U
A
U
U
U
Off
Off
Korr
+
−
−
−
=
10.1.4 Error definition
Calculation of standard deviation:
−
−
=
−
=
−
=
2
1
0
1
0
2
2
1
1
1
N
i
i
N
i
i
x
N
x
N
Typical error percentage:
100
*
*
Avg
x
N
Error resistivity = error (U0) in %
Error phase:
1000
*
0
90
U
U
[mrad] where
(
)
N
U
U
90
90
=
.