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Table of contents for the manual
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Page 1
Revision 1.2 Page i ® ® FFM100 Fuel Flow Monitor User’s Manual Revision 1.2 Copyright © 2012 Maretron, LLP All Rights Reserved Maretron, LLP 9014 N. 23 rd Ave #10 Phoenix, AZ 85021 http://www.maretron.com Maretron Manual Part #: M003010[...]
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FFM100 User’s Manual Page ii Revision 1.2 Revision History Revision Description 1.0 Release for Review 1.1 Public Release 1.2 Corrected formatting problems in certain figures Added notes about tamper-proof silicone seals on sensor screws Added information about location of sensors[...]
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Revision 1.2 Page iii ® ® Table of Contents 1 General ....................................................................................................................... ......... 1 1.1 Introduc tion .................................................................................................................. .. 1 1.2 [...]
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FFM100 User’s Manual Page iv Revision 1.2 3.5 Configuring Channel #1 ............................................................................................... 15 3.5.1 Enabling/Disabling Channel #1 ......................................................................... 15 3.5.2 Configuring Channel #1 Engine In stance .[...]
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Revision 1.2 Page 1 ® ® 1 General 1.1 Introduction Congratulations on your purchas e of the Maretron Fuel Flow Monitor (FFM100). Maretron has designed and built your monitor to the highest standards for year s of reliable, dependable, and accurate service. Maretron’s Fuel Flow Monitor (FFM 100) is used to adapt up to tw o positive displacement [...]
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FFM100 User’s Manual Page 2 Revision 1.2 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 Sens ors to the FFM100 (Section 2.5.1 ) 6. Connect the FFM100 to the NMEA 2000 ® network (Section 2.5.1 ) 7.[...]
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® ® 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[...]
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Page 8
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 t he engine, but the majority of the fuel is used for cooling the injection system and r[...]
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Page 9
® ® Return Fuel Flow Sens or Fuel Tank Supply Fuel Flow Sens or Engi ne Dis p la y /MFD Fuel Filter Figure 3 - Diesel Fuel Rate Measurem ent 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 ex pands when heated [...]
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FFM100 User’s Manual Page 6 Revision 1.2 into account will result in the fuel consum ption being underestimat ed. 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 [...]
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Revision 1.2 Page 7 ® ® Max. return flow rate = 5 gall ons / 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 documen tation for the engine, and calcul ate the maximum supply flow rate as follows: Max. supply flow rate = Ma x. return flow ra [...]
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FFM100 User’s Manual Page 8 Revision 1.2 1.6.7 Choosing a Fluid Flow Se nsor Mounting Location Choosing a proper mounting location for fluid flow s ensors is critical to obtaining accurate tank level measurements. Because of the positive displacement design of the FFM100 sensors, no pulse dampening or flow straightening is necessary . The install[...]
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Revision 1.2 Page 9 ® ® 2.3 Mounting the FFM100 Attach the FFM100 securely to the vessel usi ng the included stainle ss 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. Figu[...]
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FFM100 User’s Manual Pin # Signal Name Connection 1 P0 Fluid flow sensor 0 power connection 2 G0 Fluid flow sensor 0 ground connection 3 A0 Fluid flow sensor 0 phase A connection 4 B0 Fluid flow sensor 0 phase B connection 5 C0 Fluid flow sensor 0 phase C connection 6 T0 Fluid flow sensor 0 te mperature sensor connection 7 P1 Fluid flow sensor 1 [...]
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® ® connected or disconnected. Pl ease follow recommended practi ces for installing NMEA 2000 ® network products. Figure 7 – NMEA 2000 ® Connector Face Views 3 Configuring the FFM100 The FFM100 has several confi gurable parameters, which are shown below including the default values. If you are not using the defaul t values, then you will need[...]
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FFM100 User’s Manual Page 12 Revision 1.2 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. T[...]
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Revision 1.2 Page 13 ® ® 3.1.5 Configuring Channel #1 Allow Negative Flow The M1RSP-2R-E8, M2RSP-2R-E8, and M4ARP-2- E8 fuel flow sens ors are capable of sensing flow in both directions. When this param eter is in the default state of “Yes”, the FFM100 will report reverse flow on Channel #1 as a negative flow rate. If you do not wish to see n[...]
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FFM100 User’s Manual Page 14 Revision 1.2 the two flow rate measurements as separate parameter s over the NMEA 2000 network. 3.4 Configuring Channel #0 3.4.1 Enabling/Disabling Channel #0 By default, the channel is enabled and will measure the flow ra te and transmit it over the NMEA 2000 network. If this param eter is programmed to “ Disable?[...]
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Revision 1.2 Page 15 ® ® 3.4.9 Configuring Channel #0 Temperature Label Program this parameter with a te xt string which identifies the par ticular temperature parameter being monitored by this channel. Maretron display products will display this label text when you are selecting data to display. 3.5 Configuring Channel #1 3.5.1 Enabling/Disablin[...]
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FFM100 User’s Manual Page 16 Revision 1.2 is programmed with the appropriate value for thermal expansion coefficient of the fluid being measured. The default value of this field is (0. 083%/°C), which is appropriate for diesel fuel. The configuration tools have predefined values for common flui ds: diesel, engine oil, gasoline, and water. You ma[...]
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Revision 1.2 Page 17 ® ® • Ensure that the unit is mounted securely an d cannot be moved relative to the mounting surface. If the unit is loose, ti ghten the screws holding the cable ties. • Check the security of the cable connected to the NMEA 2000 ® interface and tighten if necessary. • Check the security of all of the fluid flow sensor [...]
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FFM100 User’s Manual Page 18 Revision 1.2 5 Troubleshooting If you notice unexpected operation of the Mare tron FFM100, follow the troubleshooting procedures in this section to remedy simple problems. Symptom Troubleshooting Procedure No Fuel Flow data visible on NMEA 2000 ® network. 1. Ensure that the FFM100 is properly connected to the NMEA 20[...]
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Revision 1.2 Page 19 ® ® 6 Technical Specifications Specifications Parameter Value Comment Accuracy (Differential Mod e) ±1.75% of reading Using M1RSP-2R-E8 sen sors K factors programmed into FFM100 4:1 fuel supply/fuel consumption ratio Accuracy (Two Indepe nde nt Sensors) ±0.25% of reading Using M1RSP-2R-E8 sen sor K factors programmed into F[...]
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FFM100 User’s Manual Page 20 Revision 1.2 Environmental 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- 100 Hz @ 7m/s 2 per IEC 60945-8.7 Solar Radiation Ultraviolet [...]
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® ® 8 Installation Template Please check the dimensions before using the fo llowing diagram as a template for drilling the mounting holes because the printing proc ess may have distorted the dimensions. Figure 9 – Mounting Surface Template Revision 1.2 Page 21[...]
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FFM100 User’s Manual Page 22 Revision 1.2 9 Maretron (2 Year) Limited Warranty Maretron warrants the FFM100 to b e free from defects in materials and workm anship for t wo (2) years from the date of original purchase. If within the applicable per iod any such products shall be p roved to Maretron’s satisfaction to fail to meet the above lim ite[...]
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Revision 1.2 Appendix A – NMEA 2000 ® Interfacing Page A1 ® ® 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 tr[...]
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FFM100 User’s Manual Page A2 Appendix A – NMEA 2000 ® Interfacing Revision 1.2 6: Fuel Rate – (16-bit signed integer) This fi eld 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 ?[...]