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MD74RDI/W DATASHEET

MD74RDI/W DATASHEET

MD74RDI/W DATASHEET

Product catalog summary
Overview: The MD74RDI/W is a weatherproof digital Rudder Angle Indicator designed for marine applications. It features a four-digit display with a resolution of 0.1°, a visual LED bar indicator, and three touch membrane buttons for setup. It can be mounted on a panel or bulkhead and is housed in a robust, weatherproof aluminum enclosure compliant with IEC 60945 standards.
Applications: The device displays rudder sensor angle data from NMEA 0183 compatible equipment, suitable for both interior and exterior use.
Accessories: Available accessories include the MD74TB Bulkhead Mounting Kit and the MD74DIM Remote Dimming Control.
Related Products: Other related products include the standard MD74RDI Rudder Angle Indicator and the MD61 Rudder Angle Sensor Transmitter.
Features: Key features include a large format LCD display, NMEA 0183 digital input, local and remote dimming control compatibility, and compliance with Wheelmark approval when part of a Marine Data Rudder Angle Indication System.
Operational Specifications: The device offers an accuracy of ±0.1°, with digital display capabilities for port and starboard indication. In case of data loss, the display shows ‘.0’ and illumination is turned off.
Environmental Specifications: The device operates within a temperature range of -25°C to +55°C and can be stored between -25°C to +70°C. It is RoHS compliant and maintains a compass safe distance of 20 cm.
Approvals: The MD74RDI/W conforms to several standards including BS EN 60945:2002, BS EN 61162-1:2016, and ISO 20673:2007. It has type approval from DNV GL Wheelmark when installed as part of the Marine Data Rudder Angle Indicator System.
Physical Specifications: The device weighs 1.0 kg and has dimensions of 137 mm in height, 250 mm in width, and 78 mm in depth. It is constructed from aluminum alloy with a Window Grey powder coat finish.
Electrical Specifications: The power supply requirement is 24 V dc (18-32 V) with a maximum of 10 W. It supports digital RS422 NMEA 0183 data input with auto-selecting baud rates and includes dimming capabilities from 0-24 V dc.
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Catalog excerpts

MD74RDI/W DATASHEET-1

RUDDER INSTRUMENTATION / RUDDER ANGLE INDICATORS MD74RDI/W WEATHERPROOF DIGITAL RUDDER ANGLE INDICATOR SKU: F074029 View Online › OVERVIEW FEATURES The MD74RDI/W is a weatherproof four digit digital Rudder Angle Large Format LCD Digital Display to 0.1° Indicator which accepts NMEA 0183 input, and is accurate to a Visual LED Bar indicator which shows Rudder Angle resolution 0.1°. It also features a visual bar LED indicator to show NMEA 0183 Digital Input The Rudder Angle Indicator can be panel mounted (kit included) or Local and Remote Dimming Control Compatible Internal components are housed within a robust weatherproof Panel Mounted or optional Bulkhead Mount Fully sealed to IEC 60945 Exposed Area Classification Wheelmark Approved when installed as part of a Marine Data Rudder Angle Indication System rudder angle, along with 3 touch membrane buttons for setup. bulkhead mounted with an optional adjustable Trunnion Bracket. aluminium enclosure, fully sealed to IEC 60945 Exposed Area Classification. A standard, non-sealed version is also available. The MD74RDI/W offers a weatherproof Rudder Angle Indicator solution for interior or exterior applications and is finished in Window Grey (RAL7040) Powder Coat. Displays Rudder Sensor Angle Data transmitted from NMEA 0183 (IEC 61162-1) compatible equipment MD74DIM - Remote Dimming Control RELATED PRODUCTS • MD74RDI - Rudder Angle Indicator (Standard) The complete range of Marine Data Rudder Angle Indicators MD61 - Rudder Angle Sensor Transmitter

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MD74RDI/W DATASHEET-2

Digital Display to 0.1°, Port and Starboard indication Panel mount or Bulkhead mount (accessory) Loss of Valid Data: Display shows ‘.0’. Illumination turned off Captive 2.5 m 8 core screened 7/0.2 data cable Aluminium alloy enclosure Window Grey (RAL7040 ) Fine-texture Powder Coat ENVIRONMENTAL IEC 60945 Equipment Category: Operating temp: Storage temp: Exposed Area Power Supply: Data input: Compass Safe Distance: Data sentences: 0-24 V dc (with respect to supply negative) Conforms with: BS EN 60945:2002 Inc. corrigendum April 2008 (BSI, 2008), BS EN 61162-1:2016 (BSI, 2016) BS EN 62288:2014...

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