Installation - Teledyne WORKHORSE Operation Manual

May 2015

Installation

The H-ADCP must be rigidly mounted to a structure, such as a large vessel, solid wall, pier, or pile. The
mounting structure must be firm, stable, without settlement or displacement over time. In order to gain
the maximum profiling range at a site, TRDI recommends the H-ADCP be mounted near the middle of the
water depth at the mounting structure location. For a site with a significant seasonal change of water lev-
el, the H-ADCP may need to be mounted at different elevations according to seasonal water level change.
In deep water we recommend the H-ADCP be mounted 5 to 20 meters below the surface.
Proper transducer mounting is critical to system performance. There are a few basic variations for
H-ADCP system installation:
1. Fixed mounted
2. Rail system that allows the H-ADCP to be moved up and down for maintenance
3. Dual taught wire system lowered via a winch
4. Free hanging from a spreader bar lowered over the side of the platform from a winch
The two preferred methods are fixed mounted or via the dual taught wire method to eliminate any head-
ing, roll or pitch movement. Changes in transducer orientation will cause errors in water velocity meas-
urements. Fixed mounted and rail system mounted H-ADCPs result in optimal system performance, along
with ease of maintenance when using a rail system.
Consideration should be taken into account when mounting to a platform with Dynamic Positioning as
there can be turbulent flow around the transducer, causing flow noise that will reduce system range per-
formance.
Your H-ADCP transducer housing and mounting plate is made of aluminum that is protected by
sacrificial anodes
Other metals may cause corrosion
Use isolating bushings when mounting the H-ADCP to a metal structure. Keep this in mind
when fabricating a fixture, which materials to use, or deciding how to place it at the installation
site.
Page 20
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
and a hard anodize coat and
damage.
WorkHorse H-ADCP Operation Manual
paint. Do not connect other metal to the H-ADCP.