Operating instructions

OI: BK MIKRO LIN.B Characteristics
Rev. 2.02 dated 31.05.2007 Page 3 of 30
1 Characteristics
BK MIKRO LIN.B is a tool monitoring system customized for longitudinal scanning applications.
The complete BK MIKRO LIN.B system comprises:
• a control unit,
• a sensor (scanner),
• a connection cable.
BK MIKRO LIN.B monitors geometries which require longitudinal scanning, especially in cases
where rotary scanning is inappropriate or impossible, for example cavities, bore holes, limited
space arrangements or critical coolant pressure.
The two control units "Multi" and "Single" have different features of monitoring:
• Tool monitoring
Monitoring of the scanning position whose precise location has been previously entered
by "Teach-in", e.g. to carry out a tool check before each working cycle (tool monitoring).
For "Multi" 8 scanning positions can be coded.
• Object monitoring, free space monitoring
Monitoring a scanning range freely selectable via two adjusting switches, e.g. to check
cavities with varying depth (object monitoring), or to check bore holes (free space monitoring).
Features only for "Multi".
Two types of scanners are available for each control unit.
TK50-LIN.B : Scanner with maximum stroke of 50 mm.
TK100-LIN.B : Scanner with maximum stroke of 100 mm.
Principle of operation
The wand of the scanner scans tools, objects or critical process spaces free of potential,
in line with machine cycles.
A control unit equipped with a micro-computer triggers the movement of the wand upon an
external signal and passes the scanning result on to the machine control via relay contacts.
The galvanically isolated inputs and outputs guarantee a high degree of operational safety
and protection against interferences.
Further features
• Variants for the tip of the wand (also project-specific)
• Two steps for scanning intensity
• Output relay contacts selectable as N.C. or N.O.
• Various ranges of tolerance for "O.K." message
• Indication of the scanning result by two LEDs for "O.K." and "K.O." at the control unit
• Detection of cable breaks