Affixing The Cover Strip; Fastening The Tape To A Cylindrical Surface - Balluff BML-M0 I A Série Notice D'utilisation

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BML-M0 -I -A
Magnetic Tape – Incremental Magnetically Coded Position Measuring System
4
Installation (continued)
4.5

Affixing the cover strip

To protect the magnetic tape from damage caused by
chips or chemicals, you may cover it using a stainless steel
cover strip (accessory).
Before affixing the cover strip, carefully clean the surface of
the magnetic tape (turpentine, mild plastic cleaner, no
acetone or benzine).
Marking the reference point
Mark the reference point on the right of the
machine part before affixing the cover strip!
Procedure is identical to that for affixing the magnetic
tape. As soon as the cover strip is completely bonded,
make sure that the sensor does not touch the cover strip
at any point.
4.6

Fastening the tape to a cylindrical surface

The tape can be bonded e.g. to a cylinder or shaft.
The pole width on the tape surface is larger than in the
center (Fig. 4-6).
The greater the distance to the sensor, the greater the pole
width and resulting non-linearity.
Note the following installation information to keep non-
linearity to a minimum:
– The cylinder diameter must be greater than 95 mm.
– The area of travel must be less than 360°.
– The distance between the sensor and tape must be
kept to a minimum. The linearity barely changes at a
distance of 0.1 mm.
– Installation options (see Fig. 4-3, Positions 1 and 2):
bond to the surface, countersink in a slot, and bond
cover.
Always fasten the tape ends with cylinder
screws, countersunk screws, or clamps (see
Fig. 4-5).
Fig. 4-6: Pole width P is dependent on the distance to the sensor
12 english
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