Humboldt 5000 BLU Light Weight Deflectometer - Manual (Page 25)

25
Extension Cable
To expand the reach between the testing computer and load plate (for example, in areas that are difficult
to access, such as trenches and shafts), the measuring cable for transferring the sensor signals to the testing
computer can be extended up to a total maximum of 4 metres with the aid of an extension cable. This
extension cable can be purchased separately. It is equipped with a male jack plug as well as a female jack
socket at the other end. To connect the extension cable, disconnect the measuring cable from the testing
computer as described above. Open the hinged lid of the socket on the side of the testing computer and
insert the plug of the extension cable all the way until it stops. Afterwards, connect the measuring cable
and extension cable by sliding the plug of the measuring cable into the socket of the extension cable all
the way until it stops. Plugs with LEMO ‘PUSH-PULL’ lock (‘TERRATEST 5000 BLU’ ONLY) lock themselves
automatically inside the sockets; they can only be disconnected after unlocking. Accordingly, pull only
on the plug, never on the cable. Doing so may cause damage to the cable or socket.
Never pull on the measuring cable to disconnect the plug-socket connection; doing so may cause damage
to the cable and/or socket.
Never place any heavy objects on the extension cable; never twist or pull it. Take care that it does not
become knotted. Damaged cables can cause fire or electric shock.
Ensure that the extension cable is fully inserted into the socket. A poor connection can cause fire or
electric shock. Use only the measuring cables provided. Failure to do so may cause fire or electric shock.
When closing the lid of the testing computer, take care not to trap the measuring cable.
‘TERRATEST 4000 USB’ ‘TERRATEST 5000 BLU’
Male plug
Female socket
Male plug
Female socket