Furuno CH-250 - Manual (Page 14)

1-4
1.4 Raising, Lowering the Transducer
1.4.1 Lowering the transducer
With the boat at the fishing ground, press the [ ↓] switch to lower the transducer. The lamp
above the switch blinks while the transducer is being lowered and lights when it is completely
lowered. The down arrow of the transducer status indicator at the top right corner of the display
is filled when the transducer is completely lowered.
CAUTION
Do not exceed 20 knots when operating
the equipment and do not exceed 15
knots when lowering or raising the
transducer.
The transducer may become damaged.
1.4.2 Raising the transducer
Press the [ ↑ ]
switch to raise the transducer. The lamp above the switch blinks while the
transducer is being raised and lights steadily when it is fully raised. The up arrow of the
transducer status indicator at the top right corner of the display is filled when the transducer is
fully retracted.
Note 1: With speed input, the transducer can be raised automatically when the ship’s speed
exceeds a preset speed between 5 and 15 knots. If speed data is erroneous the
transducer may be raised at a speed different from the preset speed. For further details
about the automatic retraction feature, see AUTO RETRACTION on page 5-12.
Note 2: An alarm may sound depending on ship’s speed. For details see page 5-13.