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Summary of Contents for Maretron FFM100
- Page 1 ® ® FFM100 Fuel Flow Monitor User’s Manual Revision 1.2 Copyright © 2012 Maretron, LLP All Rights Reserved Maretron, LLP 9014 N. 23 Ave #10 Phoenix, AZ 85021 http://www.maretron.com Maretron Manual Part #: M003010 Revision 1.2 Page i...
- Page 2 FFM100 User’s Manual Revision History Revision Description Release for Review Public Release Corrected formatting problems in certain figures Added notes about tamper-proof silicone seals on sensor screws Added information about location of sensors Page ii Revision 1.2...
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Page 3: Table Of Contents
® ® Table of Contents General ..........................1 Introduction ........................1 Firmware Revision ......................1 Features ........................1 FFM100 Accessories ..................... 1 Quick Install ........................1 Theory of Operation ....................... 2 ... - Page 4 Installation Template ......................21 Maretron (2 Year) Limited Warranty ................... 22 Table of Figures Figure 1 - M1RSP-2R-E8 and M2RSP-2R-E8 Accuracy and Pressure Loss ......3 Figure 2 - M4ARP-2-E8 Typical Accuracy and Pressure Loss ..........4 ...
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Page 5: General
Congratulations on your purchase of the Maretron Fuel Flow Monitor (FFM100). Maretron has designed and built your monitor to the highest standards for years of reliable, dependable, and accurate service. Maretron’s Fuel Flow Monitor (FFM100) is used to adapt up to two positive displacement fluid ® flow sensors to the NMEA 2000 network (Fluid Flow sensors sold separately). -
Page 6: Theory Of Operation
FFM100 User’s Manual 1. Unpack the Box (Section 2.1) 2. Choose a Mounting Location (Section 2.2) 3. Mount the FFM100 (Section 2.3) 4. Mount the Flow Sensors and Connect Fluid Lines (Section 2.4) 5. Connect the Flow Sensors to the FFM100 (Section 2.5.1) ®... -
Page 7: Figure 1 - M1Rsp-2R-E8 And M2Rsp-2R-E8 Accuracy And Pressure Loss
® ® Figure 1 - M1RSP-2R-E8 and M2RSP-2R-E8 Accuracy and Pressure Loss Please refer to Figure 2 below for a chart detailing typical accuracy and pressure loss versus flow rate for the M4ARP-2-E8 fuel flow sensor. Revision 1.2 Page 3... -
Page 8: Diesel Fuel Flow Measurement
FFM100 User’s Manual Figure 2 - M4ARP-2-E8 Typical Accuracy and Pressure Loss 1.6.3 Diesel Fuel Flow Measurement Most diesel engines do not use all of the fuel that is supplied to them by the fuel pump via the supply line. A portion of the fuel is consumed by the engine, but the majority of the fuel is used for cooling the injection system and returned to the fuel tank via the return line. -
Page 9: Temperature Compensation
® ® Display/MFD Supply Fuel Flow Sensor Fuel Filter Engi ne Return Fuel Flow Sensor Fuel Tank Figure 3 - Diesel Fuel Rate Measurement Fluid Flow Sensor Locations 1.6.4 Temperature Compensation The task of computing fuel consumption for a diesel engine is further complicated by the following two factors: 1) Diesel fuel expands when heated 2) Diesel fuel is heated as it passes through the engine... -
Page 10: Fuel Flow Sensor Selection
FFM100 User’s Manual into account will result in the fuel consumption being underestimated. In fact, without compensating for temperature, if the engine were consuming no fuel, the return fuel flow rate is greater than the supply fuel rate, since the fuel is expanded by the engine’s heat as it passes through the injection system. -
Page 11: Accuracy Of Diesel Fuel Flow Measurement
® ® Max. return flow rate = 5 gallons / 0.25 hours = 20 gallons per hour Now, add in the engine’s consumption fuel rate at this RPM, which should be readily available from the manufacturer’s documentation for the engine, and calculate the maximum supply flow rate as follows: Max. -
Page 12: Choosing A Fluid Flow Sensor Mounting Location
NOTE: Maretron fuel flow sensors have anti-tamper blue silicone on one or more of the screws that hold the body of the sensor together. Do not remove these screws. -
Page 13: Mounting The Ffm100
® ® 2.3 Mounting the FFM100 Attach the FFM100 securely to the vessel using the included stainless steel mounting screws or other fasteners as shown in Figure 5 below. Do not use threadlocking compounds containing methacrylate ester, such as Loctite Red (271), as they will cause stress cracking of the plastic enclosure. -
Page 14: Nmea 2000
® ® ® NMEA 2000 network using a Maretron NMEA 2000 cable (or an NMEA 2000 compatible cable) by connecting the female end of the cable to the FFM100 (note the key on the male connector and keyway on the female connector). Be sure the cable is connected securely and that the collar on the cable connector is tightened firmly. -
Page 15: Configuring The Ffm100
® ® ® connected or disconnected. Please follow recommended practices for installing NMEA 2000 network products. ® Figure 7 – NMEA 2000 Connector Face Views 3 Configuring the FFM100 The FFM100 has several configurable parameters, which are shown below including the default values. -
Page 16: Advanced Configuration
FFM100 User’s Manual 5. Channel #1 (Section 3.5) a. Channel Enable/Disable (Section 3.5.1) b. Engine Instance (Section 3.5.2) c. Engine Label (Section 3.5.3) d. K-Factor (Section 3.5.4) e. Temperature Coefficient (Section 3.5.5) f. Data Damping Period (Section 3.5.6) g. Reset Total Volume Recorded (Section 3.5.7) h. -
Page 17: Configuring Channel #1 Allow Negative Flow
FFM100, change the value of this parameter to “Yes”. 3.1.7 Configuring Installation Description You can configure the two installation description parameters with any text you wish. Examples include date of installation, location, etc. NMEA 2000 diagnostic tools such as Maretron ® N2KAnalyzer can display this information. -
Page 18: Configuring Channel #0
3.4.3 Configuring Channel #0 Engine Label Program this parameter with a text string which identifies the particular parameter being monitored by this channel. Maretron display products will display this label text when you are selecting data to display. 3.4.4 Configuring Channel #0 K-factor Program this parameter to match the K-factor that appears on the flow sensor connected to this channel. -
Page 19: Configuring Channel #0 Temperature Label
“Two Independent Flow Rates”. Program this parameter with a text string which identifies the particular parameter being monitored by this channel. Maretron display products will display this label text when you are selecting data to display. 3.5.4 Configuring Channel #1 K-factor Program this parameter to match the K-factor that appears on the flow sensor connected to this channel. -
Page 20: Configuring Channel #1 Data Damping Period
3.5.10 Configuring Channel #1 Temperature Label Program this parameter with a text string which identifies the particular temperature parameter being monitored by this channel. Maretron display products will display this label text when you are selecting data to display. 4 Maintenance Regular maintenance is not required;... - Page 21 ® ® • Ensure that the unit is mounted securely and cannot be moved relative to the mounting surface. If the unit is loose, tighten the screws holding the cable ties. • Check the security of the cable connected to the NMEA 2000 ®...
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Page 22: Troubleshooting
3. Check the fluid flow sensor body and rotors for excess wear caused by incorrect installation. Figure 8 – Troubleshooting Guide If these steps do not solve your problem, please contact Maretron Technical Support (refer to Section 7 for contact information). Page 18... -
Page 23: Technical Specifications
Configuration Information Protocol PGNs 059392 ISO Acknowledge 059904 ISO Request 060928 ISO Address Claim 065240 ISO Address Command 126208 NMEA Maretron Proprietary PGNs 128720 Configuration Electrical Parameter Value Comment Operating Voltage 9 to 32 Volts DC Voltage Power Consumption 150mA Maximum Current Drain ®... -
Page 24: Technical Support
Conducted, Radiated, Supply, and ESD per IEC 60945-10 Safety Precautions Dangerous Voltage, Electromagnetic Radio Frequency per IEC 60945-12 7 Technical Support If you require technical support for Maretron products, you can reach us in any of the following ways: Telephone: 1-866-550-9100... -
Page 25: Installation Template
® ® 8 Installation Template Please check the dimensions before using the following diagram as a template for drilling the mounting holes because the printing process may have distorted the dimensions. Figure 9 – Mounting Surface Template Revision 1.2 Page 21... -
Page 26: Maretron (2 Year) Limited Warranty
Maretron’s option, of any product not meeting the above limited warranty and which is returned to Maretron; or if Maretron is unable to deliver a replacement that is free from defects in materials or workmanship, Purchaser’s payment for such product will be refunded. -
Page 27: Appendix A - Nmea 2000 Interfacing
® ® ® Appendix A – NMEA 2000 Interfacing ® FFM100 NMEA 2000 Periodic Data Transmitted PGNs PGN 130312 –Temperature The FFM100 uses this PGN to provide a regular transmission of fluid temperatures. The factory default for periodic transmission rate is once every two seconds. The transmission of this PGN can be disabled (see PGN 126208 –... - Page 28 FFM100 User’s Manual 6: Fuel Rate – (16-bit signed integer) This field indicates the fuel consumption rate of the engine in units of 0.0001 cubic meters / hour. 7: Total Engine Hours – (32-bit unsigned integer) The FFM100 sets this field to a reserved NMEA 2000 value indicating “Data Not Available”.