ROCTEST PISA-M, Instruction Manual, Page: 12 / 17

E10350-161101 IPI
Page 9
3.5 INSTALL THE TOP WHEEL
1. Connect the data cable to top sensor. Cable runs from top sensor to data logger
(see Figure 11).
2. Connect top wheel to gauge tube.
Figure 11
3.6 SUSPEND THE SENSORS
1. Check that suspension cable is securely clamped.
2. Use the chain and S-hook to make fine adjustments to the final depth of the
sensor (see Figure 12).
Figure 12
3.7 NOTE ON RETRIEVING SENSORS
Withdraw the sensors one by one rather than trying to pull out the entire chain. If you try
to extract the entire chain at once, you will bend the gauge tubes and the wheels.
1. Draw each sensor upwards.
2. Clamp the gauge tube of the sensor below.
3. Disconnect the sensor, and repeat. If you intend to reinstall the sensors, check
that they are still numbered for order of installation.