CRD-04 Heading Recorder

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CRD-04

Heading Recorder

The CRD-04 Heading Recorder is a dual-channel heading and rudder angle recorder compatible with the standard NMEA protocol. It can display and record HDT (Heading) and RSA (Rudder Angle) data from external devices in real-time, suitable for navigation status monitoring and recording in the maritime field. This recorder features heading and rudder angle data display, data export, and real-time printing of heading data, meeting the needs of ships for recording and analyzing heading and rudder angle information.

Technical Features

Dual-channel independent input, compatible with NMEA0183 standard HDT and RSA sentences.

Supports adjustable baud rates (1200 to 115200 bps) across multiple settings to match different signal sources.

Real-time display and recording, updates and stores heading/rudder angle data to SD card every second.

Equipped with a 4.3-inch display, supports Chinese/English language switching and brightness adjustment.

Built-in data export function, supports copying historical record files via USB flash drive.

Provides RS-422 differential signal interface and RS-232 printer interface, offering strong compatibility.

Compact structure, dimensions 180mm × 89mm × 49.3mm, facilitating easy installation and integration.

Application Areas

Navigation status monitoring and recording in the maritime field.

Recording and analysis of ship heading and rudder angle data.

Navigation safety and compliance assurance.

Navigation data analysis and reporting.

Technical Specifications

Performance	Data Recording	Updates and stores heading/rudder angle data per second
	Data Display	4.3-inch screen, real-time values and 1-hour trend curve
	Data Export	Supports exporting historical data in CSV format via USB.
	Data Protocol	NMEA0183 (HDT/RSA sentences)
	Baud Rate	Each channel supports 1200~115200 bps, 8 adjustable levels.
	Real-time Printing	Can connect to a thermal printer to print heading data at set intervals.
Electrical	Operating Voltage	24VDC
	Rated Voltage/Current	DC24V，≤1A
	Screen Supply	DC5V
	Printer Supply	24V OUT± (Provided by the device. If it does not match the printer's actual operating voltage, connect to an appropriate power source)
Physical	Dimensions	180mm × 89mm × 49.3mm (L×W×H)
Physical	Weight	1.5kg (excluding connectors)
Interfaces & Communication	Signal Input	Dual-channel RS-422 differential input (Heading, Rudder Angle)
	Printer Interface	RS-232 (RX, TX, GND)
	Debug Interface	Ethernet port (for device debugging)
	USB Interface	For data copying (recommended ≤32GB, FAT32 format).
Data Management	Storage Media	Built-in SD card
	File Format	CSV (Timestamp, Heading, Rudder Angle columns)
	File Naming	CSV files named by date/time
Environmental	Operating Temperature	-20℃ ~ 55℃
	Humidity	≤95% (+25℃)
	Atmospheric Pressure	80~116 kPa
	Vibration	No significant vibration or shock
Usage	Installation	Dry, stable, well-ventilated environment.
	Clock Maintenance	Built-in battery, recommended replacement every 3 years.
	Power-up Interval	Wait 15 seconds after power-off before restarting.