HYDROLAB HL Série Manuel D'utilisation page 18

4. Lower the instrument into the water to be measured. For the best results, make sure that all of the
instrument is in the water. Do not put the communications module in the water.
5. Attach the instrument and cabling to a structure. Refer to
on page 18.
When deployment is complete, prepare the instrument for travel. Refer to
travel on page 22.
Attach to a buoy, anchor or structure
Do not use pipe clamps to attach the instrument because instrument damage can occur.
For unattended monitoring, attach the instrument to a buoy, anchor or structure.
Install in a location:
• Where instrument damage will not occur such as from floating material, sand, gravel, silt,
navigation or vandalism
• Where the instrument will not come in contact with mud such as after the water recedes
• Where ice will not form around the instrument or sensors
To attach the instrument to a:
• Buoy—use a marking buoy that will not attract vandalism.
• Structure—attach the instrument to the downstream side of a piling to prevent damage from
floating material. Refer to
Tie-wraps on both ends of the instrument housing. Attach the deployment cable in the same way
(if used) to prevent cable damage from floating material, navigation and vandalism. To prevent
vandalism, install the instrument and cable so they are not easily seen.
Figure 11 Attach the instrument to a structure
18 English
N O T I C E
Figure 11. Carefully install straps such as web belts and large plastic
Attach to a buoy, anchor or structure
Prepare for storage or