Installing the 3TB in a borehole
times during tightening in order to ensure that the connector is screwed fully
home.
4. If your system does not have a separate surge-suppressor sonde, fix the main
lifting cable to the shackle on top of the strain relief mechanism and run the
signal cable through the mechanism using the built-in clamps (without
tightening them). Otherwise, fix the main lifting cable to the shackle on top
of the surge-suppressor sonde.
Caution:
Do not allow the signal cable or the surge
suppressor cable to bear any of the sensor's weight.
5. Attach the lifting loop to the sensor using four M5×16 screws (provided).
6. Join the loop to the bottom of the strain relief mechanism or surge-
suppressor sonde using the linking cable provided.
7. Using a small winch, hoist up the sensor package and strain relief
mechanism until both are hanging by the lifting cable, with the strain relief
mechanism extended. If not using a separate surge-suppressor sonde,
tighten the cable clamps on the strain relief unit, allowing a little slack in the
signal cable.
27
Issue G - November 2019
