Nunotani Nautical Instruments Mfg.Co., Ltd.
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List of Products
Magnetic Compasses
Telegraph Synchro
Telegraph Micro Computer
Shaft Revolution Indicator
Rudder Angle Indicator
Relative Wind Indicator Propeller
True Wind Indicator Supersonic
Electric Window Wiper
Clear View Screen
Remote Control System

Relative Wind Indicator Propeller

The propeller in the transmitter is rotated by the wind, and the generator inside generates power. Wind velocity is measured through utilizing the proportion between the power output and the rotation and the wind velocity. The angle of wind direction is communicated to the self-synchronizing machine inside, and directions are sent through remote transmission utilizing its synchronicity.

Propeller transmitter 4PN

Power supply
AC100 / 110V , 200 / 220V , 50 / 60HZ 1φ
Wind direction transmission unit
AC synchronous
Wind velocity transmission unit
Power generator
Measurement range
Wind direction: 0 - 360 degrees
Wind velocity: 2 - 60 m/s
Measurement precision
Wind direction: ≤ 5°
Wind velocity: ≤ 0.5% (≤ 10 m/s) ≤ 5% (≥ 10 m/s)

Receiver with a signal converter inside 21ELSCD

Receiver with a signal converter inside 21ELSCD
Wind direction command unit
AC synchronous
Wind velocity command unit
Rectifier type voltmeter
Equipped with EL lighting & dimmer

Set receiver 21S

Set receiver 21S
Wind direction command unit
AC synchronous
Wind velocity command unit
Rectifier type voltmeter

Wind direction meter receiver (AC synchronous) / wind velocity meter receiver (Rectifier type voltmeter)

Wind direction meter receiver (AC synchronous) / wind velocity meter receiver (Rectifier type voltmeter)

Signal converter

Power supply
AC100 / 110V , 200 / 220V , 50 / 60HZ 1φ
Power consumption
≤ 25VA
Input signals
Wind direction: AC synchronous signals
Wind velocity: AC voltage (0 - 60 m/s)
Measurement range
Wind direction: 0 - 359Wind direction: 0 - 359°
Wind velocity: 0 - 60 m/s
Format configuration & output signals
Format configuration & output signals
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