Calibration Procedure Notes - Balluff BTL7-A Serie Betriebsanleitung

BTL7-A/C/E/G _ _ _ -M _ _ _ _ -A(8)-SA211/SA311-S32/S115/S135/KA_ _/FA_ _
Magnetostrictive Linear Position Sensor – Rod Style
6
Calibration procedure (continued)
6.5

Calibration procedure notes

Prerequisites
– The calibration device is in place or the programming
inputs are connected.
– The BTL is connected to the system controller.
– Voltage or current values from the BTL can be read
(using a multimeter or the system controller).
Values for null and end point
– Any desired position of the magnet can be used as the
null or end point. However, the null and end points may
not be reversed.
– The absolute null and end points must lie within the
minimum or maximum range of what can be output
(see value table).
– The distance between the zero point and end point
must be at least 4 mm.
The last set values are always saved, regardless
of whether the setting was ended using the
buttons, the programming inputs or
automatically after 10 min have expired.
Value table for teach-in and adjustment
The following examples refer to BTL with 0 to
10 V or 4 to 20 mA output.
For all other versions, use the values in the
value table below.
Output BTL
gradient
Rising BTL7-A...
BTL7-G...
BTL7-C...
BTL7-E...
Falling BTL7-A...
BTL7-G...
BTL7-C...
BTL7-E...
Tab. 6-1: Value table for teach-in and adjustment
16 english
Zero point
Unit Min. Null
value value
V −0.5 0
V −10.5 −10.0
mA 0 0
mA 3.6 4.0
V +10.5 +10.0
V +10.5 +10.0
mA 20.4 20.0
mA 20.4 20.0
Indication for Indication
adjustment for teach-in
2.0 4.0
2.0 4.0
6.0 12.0
6.0 12.0
8.0 6.0
−2.0 −4.0
14.0 8.0
14.0 8.0
End point
End Max. Error
value value value
+10.0 +10.5 +10.5
+10.0 +10.5 +10.5
20.0 20.4 20.4
20.0 20.4 3.6
0 −0.5 −0.5
−10.0 −10.5 −10.5
0 0 20.4
4.0 3.6 3.6