测深仪使用说明书hydrotrac

Figure 1.1

strike damage and smoothing the flow of water over the face of the transducer.

Paper

Guides

Captive

Fasteners

Supply Take-up

Thermal

Printhead

Figure 2.6

Paper Supply & Take-up Rolls

Figure 2.7

2.4.1 PAPER LOADING

Step 1: In order to gain access to the paper supply and re-wind areas, open the chart panel by unscrewing the two black captive fasteners at the extreme left of the front panel (Figure 2.7). Open the panel by pulling the handle at the left side of the front panel until the support arm engages a stop.

Step 2: If paper has been previously installed in the unit, place the power switch in the STBY position and press the CHART FEED switch (upper right) until sufficient paper has been advanced to clear any previously recorded data. Cut the paper at a convenient point past the recorded data and remove the old chart.

Step 3: Swing the panels completely open to the last stop point on the support arm (Figure 2.8). This will allow access to the paper supply and take-up assemblies located at the rear of the panel.

Step 4: Locate the printhead release lever located below the printhead on the front side of the panel (Figure 2.9). Push the lever all the way to the left in order to raise the printhead away from the paper and roller.

Figure 2.8 Front Panel Extended

release

Figure 2.9

Figure 3.1

Figure 3.2 Parameter Setting

↓Units Range

Blanking (set at 4.5

)

Note: Alarm activated

when depth is

less than

“Blanking”

Figure 3.3

Figure 3.5 Bar Check Calibration

F ix

L in e

W a te r D e p th

T im e

D a te

E v e n t

N u m b e r Entering a value for GAUGE results in a line offset from the bottom return by the value entered, being printed on the sounder’s chart. This feature is intended to produce evidence of the collection of GAUGE data during the

change either the displayed depth or the digital output of the HYDROTRAC. The GAUGE line is often used as a tracking confirmation indicator, since the line is continuously

Figure 3.7

The above image is of a sunken barge lying on the bottom of the Mississippi River in about 16 meters of water. The other objects visible in the record, above and to the left of the barge, are “sand waves”.

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