Klein Marine Systems, Inc. HydroChart 5000, Operation And Maintenance Manual

Page: 41 / 82

Sonar Head Unit Installation
3-5
To install the Sonar Head Unit:
1. Align the bolt hole patterns and secure the mounting flange to the pipe flange
using stainless steel hardware. Be sure to maintain the long axis of the Sonar
Head Unit parallel to the keel at all times. However, offsets can be corrected
with a patch test as described in “Bathymetric System Calibration and Patch
Test” on page 3-15.
2. If your installation permits, it is suggested that you attach straps to the eye rings
or handles on the fore and aft portions of the Sonar Head Unit and secure them to
the bow and stern of the survey vessel to minimize any induced body motion. The
eye rings and handles are shown in Figure 3-3.
3. Remove the dummy plug from the connector on the end of the Sonar Head Unit
jumper cable, and then apply a
thin film of silicone grease to the pins of the
connector. Do not over grease. Align this connector with the female connector of
the deck cable and press the connectors firmly together. If necessary, use a slight
side to side rocking motion while pressing on the connectors, but do not bend the
pins. When properly inserted there should be no gap between the surfaces of the
two connectors. Screw the locking sleeves together to complete the connection.
4. Secure the deck cable to the Sonar Head Unit using tie-wraps.
Figure 3-3:
Sonar Head Unit Eye Rings and Handles
WARNING
In all of the remaining steps, be sure that the power is turned
off and the TPU power cable is disconnected from the power source.
Failure to follow this practice may result in personal injury or damage to
the Sonar Head Unit or to the TPU electronics, or to both.
SHOCK HAZARD
Do not connect or disconnect the deck cable from the
Sonar Head Unit or the TPU when the power is on. Failure to follow this
practice may result in personal injury and will damage the Sonar Head
Unit or the TPU electronics, or both.
Handles (2)
Eye rings (2)