Getting started
Press the ON/OFF/VOLUME button (1). An audio signal and a short flash from the
display will confirm, that the instrument is switched on. Press the ON/OFF/VOLUME
button (1) quickly once (2sec) to switch the instrument off.
If the instrument is not used, it will automatically switch itself off after 30 minutes.
Height difference display
5 display steps indicate the divergence from the centre of the laser line.
The central bar indicates the “in line” position of the REC 150.
Rapid beeping note
= too high / back
Continuous
tone = “in line”
Slow beeping note =
too low / forward
1.
2.
3.
OK
1
1x
REC 150
REC 150
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