MI 12
MI 12-B
1 2 3 4 5 6
4. LED probe status
Lit when probe is seated.
Off when stylus is deflected or an error
has occurred.
5. LED power
Lit when power is on.
6. Start button - switch SW1
Manual start push button.
Press button to switch system to operating
mode. Alternatively a signal from the machine
control can be used for the same purpose.
1. Audible indicator (bleeper)
The speaker is behind the front panel.
2. LED error
Lit when optical beam obstructed,
probe out of range, probe switched off,
etc.
3. LED low battery
Replace probe battery as soon as
practicable, after this LED lights up.
APPENDIX 4
MI 12 INTERFACE UNIT
The MI 12 is fully described in
User's guide H-2000-5073
1-39
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