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P/N: FPM100-01
Fluid Pressure Monitor

Maretron’s Fluid Pressure Monitor is used to adapt up to six pressure transducers to the NMEA 2000® network (pressure transducers sold separately). This allows you to observe fluid pressures and tank levels anywhere on the vessel where there are NMEA 2000® compatible displays. With the appropriate transducer, the FPM100 reports either pressure or vacuum for a variety of applications including water pressures, oil pressures, hydraulic pressures, or system vacuum for detecting clogged filters.

nmea-2000-logo-productsThe FPM100 also has a tank level mode, so that fluid levels in a tank can be monitored via a pressure transducer mounted at the bottom of the tank and transmitted over the NMEA 2000® network. This allows you to monitor the fluid levels in tanks that are extremely deep, have internal structures, or are otherwise not suited for other tank level sensing technologies. In this mode, the FPM100 can be calibrated for irregular tank shapes so that you know the true level of the tanks.


  • Adapts up to six pressure transducers to the NMEA 2000® network
  • Each channel independently programmed to match pressure transducer characteristics
  • Each channel independently programmed in pressure/vacuum mode or tank level mode
  • In Tank Level Mode, measures levels of extremely deep or irregularly shaped tanks


  • Water Pressure
  • Atmospheric Pressure
  • Compressed Air Pressure
  • Hydraulic Pressure
  • Steam Pressure
  • User Defined Pressure Sources
  • Fuel Tank Level / Volume Remaining
  • Fresh Water Tank Level / Volume Remaining
  • Waste Water Tank Level / Volume Remaining


Part number Description
FPM100-01 Fluid Pressure Monitor
PT-0-3PSI-01 Pressure Transducer 0 to 3 PSI
PT-0-5PSI-01 Pressure Transducer 0 to 5 PSI
PT-0-10PSI-01 Pressure Transducer 0 to 10 PSI
PT-0-50PSI-01 Pressure Transducer 0 to 50 PSI
PT-0-100PSI-01 Pressure Transducer 0 to 100 PSI
PT-0-300PSI-01 Pressure Transducer 0 to 300 PSI
PT-0-500PSI-01 Pressure Transducer 0 to 500 PSI
PT-0-1000PSI-01 Pressure Transducer 0 to 1000 PSI
PT-0-3000PSI-01 Pressure Transducer 0 to 3000 PSI
PT-0-5000PSI-01 Pressure Transducer 0 to 5000 PSI
PT-SNUB-01 Pressure Snubber

Note: Maretron pressure transducers are not approved for use with gasoline. If you wish to use the FPM100 to monitor pressures or levels of gasoline, you must obtain a pressure transducer that is approved for use with gasoline.

Specifications (Pressure/Vaccuum Mode)

Parameter Value Comment
Accuracy +/-1% FS Exclusive of Pressure Transducer
Resolution +/-0.33% FS Over Full Pressure Transducer Range
Number of Pressure Source Types 21 Water Pressure, Atmospheric Pressure, Compressed Air Pressure, Hydraulic Pressure, Steam Pressure, 16 User Defined Sources

Specifications (Tank Level Mode)

Parameter Value Comment
Accuracy +/-1% FS Exclusive of Pressure Transducer
Resolution +/-0.33% FS Over Full Pressure Transducer Range
Number of Tank Types 16 Fuel, Fresh Water, Waste water, Live well, Oil, etc.
Number of Tanks per Tank Type 16 Tanks per Tank Type Numbered 0-15
Support for Irregularly Shaped Tanks Yes Can be Calibrated for any Shape Tank
Programmable Tank Capacity Yes Allows Displays to Calculate Amount Remaining


Standard Comment
NMEA 2000® Standard Level A
Maritime Navigation and Radiocommunication Equipment & Systems IEC 61162-3
Maritime Navigation and Radiocommunication Equipment & Systems IEC 60945
FCC and CE Mark Electromagnetic Compatibility

NMEA 2000® Parameter Group Numbers (PGNs). See manual for details

Description PGN # PGN Name Default Rate
Periodic Data PGNs 127505
Fluid Level
Actual Pressure
0.4 Times/Second
0.5 Times/Second
Response to Request PGNs 126464
PGN List (Transmit and Receive)
Product Information
Configuration Information
Protocol PGNs 059392
ISO Acknowledge
ISO Request
ISO Address Claim
ISO Address Command
NMEA Request/Command/Acknowledge
Maretron Proprietary PGNs 126720 Configuration N/A


Parameter Value Comment
Operating Voltage 9 to 32 Volts DC Voltage
Power Consumption (Maximum) <400mA Maximum Current Drain
Load Equivalence Number (LEN) 8 NMEA 2000® Spec. (1LEN = 50 mA)
Reverse Battery Protection Yes Indefinitely
Load Dump Protection Yes Energy Rated per SAE J1113


Parameter Value Comment

3.50” x 4.20” x 2.03” (88.9mm x 106.7mm x 51.6mm)

Including Flanges for Mounting

Weight 13 oz. (368.5 g)  


Parameter Value
IEC 60945 Classification Exposed
Degree of Protection IP64
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/s2 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 7 days @ 40°C, 95%RH after 2 hour Salt Spray Per IEC 60945-8.12
Electromagnetic Emission Conducted and Radiated Emission per IEC60945-9
Electromagnetic Immunity Conducted, Radiated, Supply, and ESD per IEC 60945-10
Safety Precautions Dangerous Voltage, Electromagnetic Radio Frequency per IEC 60945-12


Download User Manuals


Marinplus AB/Odelco AB
Missionsvägen 77
SE-167 33 BROMMA


+46 8 718 03 00


Marinplus AB has merged with Odelco AB, thereby becoming the first and only distributor that can offer a complete range of products and solutions for power supply, modern electrical systems, rescue and security systems.


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