Edgetech 4200 User Manual

3-27
Figure 3-14: 4200 Tow Vehicle with Optional Depressor Wing being Recovered
To recover the tow vehicle:
1. Click the Towfish Control tab and clear the High Sonar On and Low Sonar On checkboxes for
Discover 4200-SP, or the High Frequency On and Low Frequency On checkboxes for Discover 4200-
MP. This tab is shown in F
IGURE 3-10 for Discover 4200-SP and in FIGURE 3-11 for Discover 4200
MP.
2. Slowly pull in the tow cable until the tow vehicle is just below the surface.
3. Slow the survey vessel speed to under two knots. However, if practical, the survey vessel should
be put in neutral while the tow vehicle is brought on board.
4. Retrieve the tow vehicle from the water and carefully lower it on deck.
5. Do one of the following to turn off the power to the tow vehicle.
• For the 4200 Rack Mount Topside Processor, turn off the TOWFISH POWER switch.
• For the 4200-P Portable Topside Processor or the 701-DL Digital Link, turn off the POWER
switch.
6. Disconnect the tow cable from the tow cable connector.
7. Install the dummy plug on the tow vehicle.
8. Refer to SECTION
4: MAINTENANCE for instructions on how to clean and inspect the tow vehicle,
the tow cable, and the underwater connectors after use.

Edgetech 4200 Specifications

General

Brand	Edgetech
Model	4200
Category	Sonar
Language	English