Chapter 1 Preface MDC-2200/2500 Series
0093125002-04 1-2
1.2 For safe usage
Caution
Caution about the rotating aerial
The radar antenna may start to rotate without notice. Please stand clear
from the antenna for your safety.
Caution
Caution about electromagnetic disturbance
The operating antenna & scanner unit radiates high-energy
electromagnetic wave. It may cause harmful effect for human body due to
its continuous irradiation. As International regulation says, electromagnetic
waves less than 100 watt/m
2
does not have a harmful effect on human
bodies, but some kind of medical devices such as heart pacemakers are
sensitive even under the low energy electromagnetic wave. Any personnel
with such a device should keep away from the electromagnetic wave
generating position at all times.
Specified power density and distance from the device (in accordance with
the provision as specified in IEC 60945)
Model name Output power/
Antenna length
100W/m
2
10W/m
2
4kW / 3 feet Antenna 0.9m 2.85m MDC-2240
/MDC-2540
4kW / 4 feet Antenna 1.01m 3.2m
6kW / 4 feet Antenna 1.09m 3.46m MDC-2260
/MDC-2560
6kW / 6 feet Antenna 1.3m 4.10m
12kW / 4 feet Antenna 1.55m 4.89m MDC-2210
/MDC-2510
12kW / 6 feet Antenna 1.84m 5.81m
25kW / 6 feet Antenna 2.82m 8.91m MDC-2220
/MDC-2520
25kW / 9 feet Antenna 3.35m 10.6m
Caution about internal high voltage.
Confirm that the ship’s power source and power supply of this device is
turned off when doing an internal inspection of this device.
The maintenance and inspection of these devices should be performed by
qualified technical personnel.
Post the notice of “During inspection” label near the power switch of this
device during service and inspecting.
High voltage is used inside this device. This high voltage may remain in
the circuit even after the power switch had turned off.
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