Trouble or fault
Not paired.
Invalid entry.
The command is not possi-
ble; no reaction.
Surveillance mode is active.
Sleep mode is active.
Low battery in the rotating
laser.
10
RoHS (Restriction of Hazardous Substances)
Click on the link to go to the table of hazardous substances: qr.hilti.com/r5952923.
There is a link to the RoHS table, in the form of a QR code, at the end of this document.
11
Disposal
WARNING
Risk of injury due to incorrect disposal! Health hazards due to escaping gases or liquids.
▶ DO NOT send batteries through the mail!
▶ Cover the terminals with a non-conductive material (such as electrical tape) to prevent short circuiting.
▶ Dispose of your battery out of the reach of children.
▶ Dispose of the battery at your Hilti Store, or consult your local governmental garbage disposal or public
health and safety resources for disposal instructions.
38
English
Possible cause
The devices are not paired.
Invalid entry; the command is not
possible.
Valid entry, but the tool doesn't
react.
Surveillance mode is active. Re-
alignment not possible.
The tool is in sleep mode.
Low battery in the rotating laser.
Action to be taken
▶ Pair the rotating laser and the
laser receiver. → page 33
▶ Make a valid entry again. Read
the operating instructions.
▶ Check that all devices are
switched on.
▶ Check that all devices are within
direct range.
▶ Repeat the entry.
▶ Check the positions of the
rotating laser and the PRA 30
laser receiver.
▶ Check that all devices are within
direct range.
▶ Restart automatic alignment.
▶ Activate / deactivate sleep
mode. → page 32
▶ Charge the battery.
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