Balluff BTL7-E570 Series - Page 54

20 english
6
Calibration procedure (continued)
6.5 Calibration procedure notes
Prerequisites
– The programming inputs are connected or the
calibration device is in place.
– The BTL is connected to the system controller.
– Voltage or current values from the BTL can be read
(using a multimeter, the system control or the adjusting
box).
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 null 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 inverting
The following examples refer to BTLs with 0 to
10 V or 4 to 20 mA output.
For all other versions, use the values in the value
table below.
Output
gradient
BTL Unit Min.
value
Nullvalue Indication for
adjustment
Indication
for teach-in
End
value
Max.
value
Error
value
Rising BTL7-A… V −0.5 0 2.0 4.0 +10.0 +10.5 +10.5
BTL7-G… V −10.5 −10.0 2.0 4.0 +10.0 +10.5 +10.5
BTL7-C… mA 0 0 6.0 12.0 20.0 20.4 20.4
BTL7-E… mA 3.6 4.0 6.0 12.0 20.0 20.4 3.6
Falling BTL7-A… V +10.5 +10.0 8.0 6.0 0 −0.5 −0.5
BTL7-G… V +10.5 +10.0 −2.0 −4.0 −10.0 −10.5 −10.5
BTL7-C… mA 20.4 20.0 14.0 8.0 0 0 20.4
BTL7-E… mA 20.4 20.0 14.0 8.0 4.0 3.6 3.6
Tab. 6-1: Value table for teach-in and inverting
Null point End point
BTL7-A/C/E/G5_ _-M_ _ _ _-J-DEXC-TA12
Magnetostrictive Linear Position Sensor – Rod Style
Type of protection “db” and “ta”
Flameproof enclosure