Sensopart FT 50 RLA 70-L8 Mounting And Operating Instructions page 54

No. LED pattern
Description
18 „Autom. zero" function (with Q
Q Q
1 2
I OK
Switch with
C FA
SET
The output characteristics (4-20 mA) are simultaneously displaced with this function. When this
function is activated and Q
mA. The incline of the characteristic curve is maintained. The max. value of the characteristics
is limited by the measuring range.
The distance to the object must be within the measuring range.
54
Status indicator „ZA"
as control input):
1
ON, if autom. zero active
OFF, if autom. zero inactive
= +U , the current measured value is set as the output value of 4
1 B
Analogue signal
20 mA
4 mA
+U
B
Q
1
-U
B
20 mA
4 mA
Autom. zero at 150 mm
80 150
t(s)
Factory setting
mm
300
FT 50 RLA Disctance sensor - GB - 068-13671 - 20.04.2009-05
Mounting and
operating instructions
Factory setting
Inactive
(„ZA" = OFF)
Illustr. 13
15500148
Illustr. 14
15500858