
Copyright 2009 Maretron, LLP. All rights reserved. As Maretron is constantly improving
its products, all specifications are subject to change without notice. Maretron’s products
are designed to be accurate and reliable; however, they should be used only as aids to
navigation and vessel monitoring, and not as a replacement for traditional navigation
and vessel monitoring techniques. A prudent captain or navigator never relies on a single
source for navigation or system monitoring information. “NMEA 2000” is a registered
trademark of the National Marine Electronics Association.
23
Environmental Mechanical Electrical
NMEA 0183
Sentences
NMEA 2000
®
Parameter
Group Numbers (PGNs)
Certifications
Specifications
Parameter Value Comment
Static Heading Accuracy <1° RMS ±45° Pitch and Roll - 15°C to 35°C
Heading Display Resolution 0.1° With Maretron Display
Settling Time 1 Second To Static Accuracy after 35°/Second Turn
Heading Update Rate 10 per Second
Heading Deviation Yes Automatic
Alignment Calibration Yes In Boat Calibration with Maretron Displays
Pitch and Roll Range ±80° With Maretron Display
Pitch and Roll Accuracy <1° ±45° Pitch and Roll - 15°C to 35°C
Pitch and Roll Display Resolution 0.1° With Maretron Display
Pitch and Roll Update Rate
1 per Second
Pitch and Roll to Boat Alignment Yes In Boat Calibration with Maretron Displays
Rate of Turn Range 0° - 90°/ Second At 0° Pitch and Roll
Rate of Turn Accuracy ±1° per Second 0° Pitch and Roll - 15°C to 35°C
Rate of Turn Update Rate 10 per Second
NMEA 0183 Standard Compatible Up to 38,400 Baud (40 Hz Update Rate)
Parameter Value Comment
Operating Voltage 9 to 16 Volts DC Voltage
Power Consumption < 150mA Average Current Drain
Load Equivalence Number (LEN) 3 NMEA 2000
®
Spec. (1 LEN = 50mA)
Reverse Battery Protection Yes Indefinitely
Load Dump Protection Yes Energy Rated Per SAE J1113
Parameter Value Comment
Size 4.46” x 3.23 x 2.14” (113mm x 82mm x 54mm) Including Mounting Flanges
Weight 7 Oz. (198 g) Including Mounting Bracket
Mounting Deck or Bulkhead
Parameter Value
IEC 60945 Classification Exposed
Degree of Protection IP67
Operating Temperature -25°C to 55°C
Storage Temperature -40°C to 70°C
Relative Humidity 93%RH @40° per IEC60945-8.2
Vibration 2-13.2Hz @ ±1mm, 13.2-100Hz @ 7m/s
2
per IEC 60945-8.7
Rain and Spray 12.5mm Nozzle @ 100liters/min from 3m for 30min per IEC 60945-8.8
Solar Radiation Ultraviolet B, A, Visible, and Infrared per IEC 60945-8.10
Corrosion (Salt Mist) 4 times 7days @ 40°C, 95%RH after 2 hour Salt Spray Per IEC 60945-8.12
Electromagnetic Immunity Conducted, Radiated, Supply, and ESD per IEC 60945-10
Safety Precautions Dangerous Voltage, Electromagnetic Radio Frequency per IEC 60945-12
Sentence Acronym Sentence Name Description
Transmitted
Sentences
HDG
Heading, Deviation, and Variation 10 Times/Second
HDM
Heading, Magnetic N/A
HDT
Heading, True N/A
ROT
Rate of Turn 5 Times/Second
PMAROUT
Maretron Proprietary Attitude (Pitch and Roll) 1 Time/Second
TXT
Text Transmission N/A
Received
Sentences
RMC
Recommended Minimum Specific GNSS Data N/A
VTG
Course Over Ground and Ground Speed N/A
DSM250 Screen Shots
Description PGN # PGN Name Default Rate
Periodic Data PGNs
127250 Vessel Heading 10 Times/Second
127257 Attitude 1 Time/Second
127251 Rate of Turn 10 Times/Second
Response to Requested PGNs
126464 PGN List (Transmit and Receive) N/A
126996 Product Information N/A
126998 Configuration Information N/A
Protocol PGNs
059392 ISO Acknowledge N/A
059904 ISO Request N/A
060416 ISO Transport Protocol, Connection Management N/A
060160 ISO Transport Protocol, Data Transfer N/A
060928 ISO Address Claim N/A
065240 ISO Address Command N/A
126208 NMEA Request/Command/Acknowledge N/A
Maretron Proprietary PGNs
126720 Configuration N/A
Standard Comment
NMEA 2000
®
Standard Level A
Maritime Navigation and Radio Communication Equipment & Systems IEC 61162-3
Maritime Navigation and Radio Communication Equipment & Systems IEC 60945
FCC and CE mark Electromagnetic Compatibility
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