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FFM100 Fuel Flow Monitor User`s Manual (pdf - updated

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1. seeessesss 19 3 5 9 Configuring Channel 1 Temperature SOUICE ccccccceeeeceeeeceeeeceeeeseeeesaeees 19 3 5 10 Configuring Channel 1 Temperature Label eeeeeeeessseesse 19 3 5 11 Configuring Channel 1 Flow Instance rarrrnnnnnrnrnnnenrnnnrnrannennannennnnrnnnnnennnnner 19 3 5 12 Configuring Channel 1 Flow Label rrrrannrnnnnnrnrnnnenrnnnrnrnnnennnnnnnnnnennnnnrnnnnnee 19 3 5 13 Configuring Channel 1 Volume Instance rrarrrrnannrnrannrnrannennnnnnnnansrnnnnennnnner 19 3 5 14 Configuring Channel 1 Volume Label rannnnnnnnrnnnnnennnnnnnrnnnennnnnnnnnnnnnnnnnnnnnner 20 A MAMENANG TETTE cs 20 9 TOBUDIeSITOOLlIG desea ash seri Boats deuda dena tace a lait doute Bie hes Bisa Lessee ee 21 6 Technical SPEEDS ae 22 7 TET SUNT PPT 23 9 NEA TEEN To Run E GIA Rav Dang rin Go iR es 24 9 Maretron 2 Year Limited Warranty eeessesssessesssseseneen nennen nennen nnns 25 Table of Figures Figure 1 M1AR and M2AR Accuracy and Pressure Loss rrrrnrrnnnrrnnnrrrnnrrnnnrrnnnrennnrrnnnrrrnnrennnn 3 Figure 2 MAAR Typical Accuracy and Pressure Loss eese 4 Figure 3 M8AR and M16AR Typical Accuracy and Pressure Loss ssuussse 5 Figure 4 Diesel Fuel Rate Measurement Fluid Flow Sensor Locations 6 Figure 5 Fluid Flow Sensor Selection C
2. Maretron FFM100 Fuel Flow Monitor User s Manual Revision 1 4 Copyright 2015 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 4 Page FFM100 User s Manual Revision History Release for Review Public Release Added notes about tamper proof silicone seals on sensor screws Added information about location of sensors Added information about configuration tools Modified troubleshooting guide Added Maretron Proprietary PGN s for fluid types other than fuel and extended range on trip volume 1 Fixed formatting issue in PGN table Updated part numbers of fuel flow sensors and added M8AR and M16AR Added information on flow and volume instance and label configuration 1 1 1 1 Corrected formatting problems in certain figures 3 4 Added information on proprietary PGNs Added diagram of fluid flow sensor plumbing with bypass valves Page Ii Revision 1 4 Maretran Table of Contents iz e 1 Mee ANOU EEE meederdeeneietereaanedinneeasederiescedtereenenes 1 2 FER VINN 1 VA FAE 1 1 4 uunltirive ccili m 1 To 0 Fe lt i acy M TT t TT 2 1 6 Theory of Operation ccccccccccceccecceececseeeeceeeeeseeeeesseeeeseaeeeseeeesseeesseueesseeesseeesseeeesaeeees 2 IF N MEN M etter eee eee 2 1 6 2 SN 2 1 6 3 Diesel Fuel
3. C which is appropriate for diesel fuel The configuration tools have predefined values for common fluids diesel engine oil gasoline and water You may select one of these values or choose your own 3 5 6 Configuring Channel 1 Data Damping Period NOTE This parameter is available only when the Operating Mode of the FFM100 is set to Iwo Independent Flow Rates You can configure a damping parameter to smooth the flow rate readings or make them more responsive The data damping is configurable between 0 2 25 0 seconds The default data damping period is 3 0 seconds Page 18 Hevision 1 4 Maretran 3 5 7 Resetting the Total Volume Recorded for Channel 1 NOTE This parameter is available only when the Operating Mode of the FFM100 is set to Iwo Independent Flow Rates The FFM100 maintains the total volume recorded in EEPROM so that it is maintained across power cycles Select this menu entry to reset the total volume recorded to zero 3 5 8 Configuring Channel 1 Temperature Instance Program this parameter to match the desired instance number of the temperature reading for this channel You can program this parameter to any value between 0 and 252 The default value for this parameter is O 3 5 9 Configuring Channel 1 Temperature Source Program this parameter to match the desired instance number of the temperature reading for this channel You can program this parameter to any value between 0 and 252 The default valu
4. FFM100s connected to the network would be numbered 1 2 and so on 3 1 2 Configuring Channel 0 Installation Orientation If you install the Channel 0 fluid flow sensor with the FLOW arrow on the sensors pointing in the same direction as the fuel flow you will not need to change this parameter from the factory default setting If you inadvertently install the sensor in the reverse direction rather than reinstalling the sensor you may change this parameter from Normal to Reverse and the FFM100 will compensate for the reversed installation of the flow sensor 3 1 3 Configuring Channel 1 Installation Orientation If you install the Channel 1 fluid flow sensor with the FLOW arrow on the sensors pointing in the same direction as the fuel flow you will not need to change this parameter from the factory default setting If you inadvertently install the sensor in the reverse direction rather than reinstalling the sensor you may change this parameter from Normal to Reverse and the FFM100 will compensate for the reversed installation of the flow sensor 3 1 4 Configuring Channel 0 Allow Negative Flow The M1AR M2AR M4AR M8AR and M16AR fuel flow sensors are capable of sensing flow in both directions When this parameter is in the default state of Yes the FFM100 will report Page 14 Hevision 1 4 Maretran reverse flow on Channel 0 as a negative flow rate If you do not wish to see negative flow rates from the
5. Flow Measurement esee 5 1 6 4 Temperature Compensation cccccccccseececeeececeeeeeseeeeeseeeeseeeessaeeessaeeesseeeesaaes 6 155 FAP SENSO Nr 7 1 6 6 Accuracy of Diesel Fuel Flow Measurement cccceceeeeceeeeseeeeeeeeeseeeeneeeenees 8 1 6 7 Choosing a Fluid Flow Sensor Mounting Location ssse 9 Installation eee 9 TUE BNR 9 2 2 Choosing a Mounting Location ararnnnrrnnnnnnnnnrnanrnnnnrnnnnrnnnnnnnnnrnnnnsnnansnnnnnnnnnennnsennnnannnnee 9 600100 Me EE 9 2 4 Mounting the Fluid Flow Sensor rrrnnrrrnnnnrnrnnnenrnnnrnvnnnrnrnnnenransennnnsennansennassnnnnsennnnseen 10 20 ZOMMCCUNG TNC FENTOO E 11 2 9 1 Fluid flow sensor GONNECIONS scresccecesaseredexenaxedexesexedsyamexedsxenexadexeeaxedexseexedexesexts 11 2 5 2 NMEA 2000 Connection cccccccccccccccccceecsseeeeeeeeesceesesseeeeeeeeeesseesessneeeeeesenens 12 Configuring the FFM100 rarnonnnrnnnnnnrnnnevnnnnenrannennnnsennnnsnnnnnsnnnnnsnnnnennnnsennnnsennassennasennnnssen 13 3 1 Advanced SOGA oN vs 14 3 1 1 Configuring Device Instance rrrnnnnrnnnnnrnnnnnernnnnenrnnnennanrrnnanrennnnsennunsnnnnnnnnnnee 14 3 1 2 Configuring Channel 0 Installation Orientation eeeesseuese 14 3 1 3 Configuring Channel 1 Installation Orientation seeessesssee 14 3 1 4 Configuring Channel 40 Allow Negativ
6. from the bow are stern the engines are numbered starting from the port side and proceeding towards the starboard side Field 2 Trip Fuel Used This field indicates the total fuel used since the counter was last reset with a resolution of 0 001 cubic meters Field 3 Fuel Rate Average The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available Page A2 Appendix A NMEA 2000 Interfacing Revision 1 4 Field 4 Field 5 Maretran Fuel Rate Economy This field indicates the current fuel consumption rate with a resolution of 0 0001 cubic meters hour Instantaneous Fuel Economy This field indicates the current fuel consumption rate with a resolution of 0 0001 cubic meters hour 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 NMEA Request Group Function Transmission Periodic Rate Field 1 2 5 6 SID The sequence identifier field is used to tie related PGNs together Temperature Instance The FFM100 sets this field to identify a particular temperature measurement from the source specified in Field 3 Every temperature measurement from a given source type on the network should have a distinct instance value so that monitoring devices and displays can identify which meas
7. parameter is 0 3 5 14 Configuring Channel 1 Volume Label NOTE This parameter is available only when the Operating Mode of the FFM100 is set to Iwo Independent Flow Rates Program this parameter with a text string which identifies the particular volume 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 however an occasional inspection will ensure continued proper operation of the Maretron FFM100 Perform the following tasks periodically e Clean the unit with a soft cloth Do not use chemical cleaners as they may remove paint or markings or may corrode the FFM100 enclosure or seals Do not use any cleaners containing acetone as they will deteriorate the plastic enclosure e 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 e Check the security of the cable connected to the NMEA 20008 interface and tighten if necessary e Check the security of all of the fluid flow sensor connections on the top of the unit and tighten if necessary Page 20 Hevision 1 4 Maretran 5 Troubleshooting If you notice unexpected operation of the Maretron FFM100 follow the troubleshooting procedures in this section to remedy simple problems Symptom Troubleshooting Procedure No Fuel Flow data visi
8. valve normally operated in the fully closed position will enable the sensor to be removed for servicing while allowing fluid to flow normally through the system Please refer to Figure 7 below for an example of bypass valve and isolating valve installation Page 10 Hevision 1 4 Maretron Fluid Flow Sensor Isolating Valve i Ps Isolating Valve Bypass Valve Figure 7 Fluid Flow Sensor Installation with Bypass and Isolating Valves 2 5 Connecting the FFM100 The FFM100 requires two types of electrical connections 1 the fluid flow sensor connections which are described in Section 2 5 1 and 2 the NMEA 2000 connection refer to Section 2 5 2 2 5 1 Fluid flow sensor Connections The FFM100 fluid flow sensor connections are made by connecting to the 12 pin terminal strip on the top of the unit First remove the four screws at the corners of the unit detaching the splash guard from the unit On the bottom of the splash guard you will find a label detailing the wire connection to pin number assignments which are repeated in the table below Pin SignalName Connection 1 PO l FluidflowsensorOpowerconnecton 2 GO Fluidflow sensor 0 ground connection 3 AO l FluidflowsensorOphase A connection 4 BO Fluid flow sensor 0 phase B connection 5 CO Fluid flow sensor 0 phase C connection 6 TO F
9. which identifies the particular flow parameter being monitored by this channel Maretron display products will display this label text when you are selecting data to display 3 4 12 Configuring Channel 40 Volume Instance Program this parameter to match the desired instance number of the volume reading for this channel You can program this parameter to any value between 0 and 252 The default value for this parameter is O 3 4 13 Configuring Channel 40 Volume Label Program this parameter with a text string which identifies the particular volume 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 Disabling Channel 1 NOTE This parameter is available only when the Operating Mode of the FFM100 is set to Two Independent Flow Rates By default the channel is enabled and will measure the flow rate and transmit it over the NMEA 2000 network If this parameter is programmed to Disable the channel will be Revision 1 4 Page 17 FFM100 User s Manual completely disabled and will not measure flow rate nor transmit it over the NMEA 2000 network 3 5 2 Configuring Channel 1 Engine Instance NOTE This parameter is available only when the Operating Mode of the FFM100 is set to Two Independent Flow Rates Program this parameter to match the desired engine instance number of the flow rate and total fue
10. 0 Section 3 4 Channel Enable Disable Section 3 4 1 Engine Instance Section 3 4 2 Engine Label Section 3 4 3 K Factor Section 3 4 4 Data Damping Period Section 3 4 5 Reset Total Volume Recorded Section 3 4 6 Temperature Instance Section 3 4 7 Temperature Source Section 3 4 8 Temperature Label Section 3 4 9 20700009 CpOo c oococpm Revision 1 4 Page 13 FFM100 User s Manual j Flow Instance Section 3 4 10 k Flow Label Section 3 4 11 I Volume Instance Section 3 4 12 m Volume Label Section 3 4 13 5 Channel 1 Section 3 5 Channel Enable Disable Section 3 5 1 Engine Instance Section 3 5 2 Engine Label Section 3 5 3 K Factor Section 3 5 4 Temperature Coefficient Section 3 5 5 Data Damping Period Section 3 5 6 Reset Total Volume Recorded Section 3 5 7 Temperature Instance Section 3 5 8 Temperature Source Section 3 5 9 Temperature Label Section 3 5 10 Flow Instance Section 3 5 11 Flow Label Section 3 5 12 Volume Instance Section 3 5 13 Volume Label Section 3 5 14 SP 3 ATT Tea 9a oP 3 1 Advanced Configuration 3 1 1 Configuring Device Instance NMEA 2000 provides a unique device instance for each flow measuring device on a vessel This value should be programmed in each FFM100 so that each FFM100 is associated with a unique device instance number The default instance number is 0 which is used to indicate the first FFM100 that is hooked to the network Subsequent
11. Channel 40 sensor you may change this parameter to No When this parameter is set to No the FFM100 will report a zero flow rate for Channel 0 when reverse flow occurs 3 1 5 Configuring Channel 1 Allow Negative Flow The M1AR M2AR M4AR M8AR and M16AR fuel flow sensors are capable of sensing flow in both directions When this parameter 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 negative flow rates from the Channel 1 sensor you may change this parameter to No When this parameter is set to No the FFM100 will report a zero flow rate for Channel 1 when reverse flow occurs 3 1 6 Configuring Differential Mode Allow Negative Flow In differential mode if no fuel consumption occurring but fuel is flowing through both the supply and return fuel flow sensors the resulting calculated net fuel consumption can result in a small negative value When this parameter is set to the default state of No the FFM100 will report this as a zero flow rate value If you wish to see these small negative values transmitted by the 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 3 1 8 C
12. PGNs Electrical NMEA 2000 Spec 1LEN 50mA Indefinitely Mechanical Parameter Value Comment Size 3 50 x 4 20 x 2 03 Including Flanges for Mounting 88 9mm x 106 7mm x 51 6mm 13 02 368 5 g Page 22 Revision 1 4 Maretran Environmental Value Exposed IP64 25 C to 55 C 40 C to 70 C Relative Humidity 93 RH 40 per IEC60945 8 2 2 13 2Hz 1mm 13 2 100Hz 9 7m s per IEC 60945 8 7 Ultraviolet B A Visible and Infrared per IEC 60945 8 10 4 times 7days 40 C 95 RH after 2 hour Salt Spray Per IEC 60945 8 12 Conducted and Radiated Emission per IEC 60945 9 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 Fax 1 602 861 1777 E mail support omaretron com World Wide Web http www maretron com Mail Maretron LLP Attn Technical Support 9014 N 23 Ave Suite 10 Phoenix AZ 85021 USA Revision 1 4 Page 23 FFM100 User s Manual 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 3 45 87 6mm 3 00 76 2mm 4 20 106 7mm Figure 11 Mounting Surface Templat
13. Temperature Source This field is used to indicate the type of temperature measurement being taken Possible values for this field include Sea Temperature Outside Temperature Inside Temperature Engine Room Temperature Main Cabin Temperature Live Well Temperature Bait Well Temperature Refrigeration Temperature Heating System Temperature and Freezer Temperature Actual Temperature This field is used to indicate the temperature in units of 0 001 C Set Temperature The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available Reserved bits The FFM100 sets all bits in this field to a value of 1 Revision 1 4 Appendix A NMEA 2000 Interfacing Page A3
14. ble on NMEA 20009 network No Fluid Temperature data visible on NMEA 20009 network Fluid will not flow through the fluid flow Sensors Heduced flow through the fluid flow sensors Inaccurate fluid flow reading Ensure that the FFM100 is properly connected to the NMEA 20009 network Ensure that fluid flow sensors are properly connected to the FFM100 Ensure that each channel that you wish to monitor is configured correctly and that instance numbers are configured correctly Ensure that the FFM100 has the appropriate NMEA 2000 PGNs enabled If operating in the NMEA 20009 Mode check the connection to the NMEA 20009 interface see Section 2 5 1 and tighten if necessary Ensure that power is supplied to the NMEA 20009 network Proper network power can be checked by measuring the voltage at an open tee between NET S and NET C The voltage should be between 9 and 16 volts Ensure that both trunk line terminators are in place Proper network termination can be checked by removing network power and measuring the resistance at an open tee between NET L and NET H signals The resistance should read approximately 60 ohms two 120 ohm terminators in parallel equals 60 ohms Check the meter for foreign matter blocking the rotors by pouring fluid through the meter If foreign matter is found to be blocking the rotors please contact Maretron to obtain an RMA number in order to return the product to th
15. e Page 24 Hevision 1 4 Maretron 9 Maretron 2 Year Limited Warranty Maretron warrants the FFM100 to be free from defects in materials and workmanship for two 2 years from the date of original purchase If within the applicable period any such products shall be proved to Maretron s satisfaction to fail to meet the above limited warranty such products shall be repaired or replaced at Maretron s option Purchaser s exclusive remedy and Maretron s sole obligation hereunder provided product is returned pursuant to the return requirements below shall be limited to the repair or replacement at 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 Maretron assumes no liability whatsoever for expenses of removing any defective product or part or for installing the repaired product or part or a replacement therefore or for any loss or damage to equipment in connection with which Maretron s products or parts shall be used With respect to products not manufactured by Maretron Maretron s warranty obligation shall in all respects conform to and be limited to the warranty actually extended to Maretron by its supplier The foregoing warranties shall not apply with respect to products subjected to negligence misuse misapplication accident damage
16. e 2 Hevision 1 4 Maretron Please refer to Figure 1 below for a chart detailing typical accuracy and pressure loss versus flow rate for the M1AR and M2AR fuel flow sensors 0 35 0 15 0 Umm 0 15 0 35 Flow rate Accuracy 30 s kPa 20 C Pressure loss Figure 1 M1AR and M2AR Accuracy and Pressure Loss Revision 1 4 Page 3 FFM100 User s Manual Please refer to Figure 2 below for a chart detailing typical accuracy and pressure loss versus flow rate for the M4AR fuel flow sensor o Es e LL e z an uf o D 3 uh dq i A Flow rate 6 Figure 2 M4AR Typical Accuracy and Pressure Loss Page 4 Revision 1 4 Maretron Please refer to Figure 3 below for a chart detailing typical accuracy and pressure loss versus flow rate for the M8AR and M16AR fuel flow sensors 100 Accuracy 9 5 Pressure loss kPa 0 10 20 30 40 50 60 70 80 20 100 Flow Rate Figure 3 M amp AR and M16AH 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 For diesel engines the FFM100 will operate in its differential mode and will measure the net fuel consumption of these e
17. e Flow eeseeeeeeeeeeeeeeee 14 3 1 5 Configuring Channel 1 Allow Negative Flow rernnrrvvnnnnrrenrnnrrernnnrrennnnerenrnnvne 15 3 1 6 Configuring Differential Mode Allow Negative Flow 15 3 1 7 Configuring Installation Description rrrrronrerrnnnrrrnnnerrnnnrnrannennannennansnnnnnennnnnee 15 3 1 8 Configuring NMEA 2000 PGN Enable Disable sseesssesesssss 15 3 1 9 Restoring Factory Default Settings rrrrrrnnrrrrnnnrrrnnnerrnnnrnrnnnernnnnennnnrrnnnnennnnner 15 3 2 Configuring the Device Label sess 15 3 5 Gonliguring the Operating Mode Luna bore Far iniiai aa EEEN 15 sp Needed 16 3 4 1 Enabling Disabling Channel 40 arrrrnrrrrnrrrrarrrrnnrrrnnrnrnnrnnnnrrnnnrnnnnrnnnennnnnnnnnee 16 3 4 2 Configuring Channel 0 Engine Instance rrrrnnrrnnnnnvnnnnnvnvnnrennnnrennnnrennnnrennnne 16 3 4 3 Configuring Channel 0 Engine Label rannnnnnnnnnnnnnnnnnnnennnnnennnnnennnnrennnnnennnne 16 3 4 4 Configuring Channel 0 K factor cccccsccccssecccescecceseeceseecsseessueeessueeesseees 16 3 4 5 Configuring Channel 0 Data Damping Period rrarnenrnnrrnrannennnnnernnnnnnnnnnnnnnnrr 16 3 4 6 Resetting the Total Volume Recorded for Channel 0 16 3 4 7 Configuring Channel 0 Temperature Instance rarrrnnnnnrnnnnnvnnnnrennnnrennnnr
18. e factory for servicing Ifa line strainer is installed check to see whether it is blocked and clean if necessary Check the sensor connections to see if they are over tightened and re adjust if necessary lfaline strainer is installed check to see if it is partially blocked and clean if necessary Ensure that the fluid being measured is less than 1000 centipoise viscosity Ensure that the fluid flow rate is within the minimum and maximum specifications for the sensor Check for air in the system and bleed if present Figure 10 Troubleshooting Guide If these steps do not solve your problem please contact Maretron Technical Support refer to Section 7 for contact information Hevision 1 4 Page 21 FFM100 User s Manual 6 Technical Specifications Specifications Parameter Differential Mode 1 75 of Using M1AR sensors reading K factors programmed into FFM100 4 1 fuel supply fuel consumption ratio Accuracy Two Independent 0 25 of Using M1AR sensor reading K factors programmed into FFM100 Resolution 0 1 LPH 0 026 GPH Certifications Parameter NMEA 20009 Maritime Navigation and Radiocommunication Equipment amp Systems Maritime Navigation and Radiocommunication Equipment amp Systems NMEA 20009 Parameter Group Numbers PGNs See Appendix A for Details Description PGN PGNName 9 Default Rate Periodic Data PGNs Response to Requested PGNs Protocol
19. e for this parameter is 129 User Defined 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 3 5 11 Configuring Channel 1 Flow Instance NOTE This parameter is available only when the Operating Mode of the FFM100 is set to Iwo Independent Flow Rates Program this parameter to match the desired instance number of the flow reading for this channel You can program this parameter to any value between 0 and 252 The default value for this parameter is O 3 5 12 Configuring Channel 1 Flow Label NOTE This parameter is available only when the Operating Mode of the FFM100 is set to Iwo Independent Flow Rates Program this parameter with a text string which identifies the particular flow parameter being monitored by this channel Maretron display products will display this label text when you are selecting data to display 3 5 13 Configuring Channel 1 Volume Instance NOTE This parameter is available only when the Operating Mode of the FFM100 is set to Iwo Independent Flow Rates Revision 1 4 Page 19 FFM100 User s Manual Program this parameter to match the desired instance number of the volume reading for this channel You can program this parameter to any value between 0 and 252 The default value for this
20. ennnne 17 3 4 8 Configuring Channel 0 Temperature SOUICE cccccccccseeeeeseeeeeeeeeesaeeeesaaeess 17 3 4 9 Configuring Channel 0 Temperature Label rrrrnnrnnnnnnrnnnnnennnnrennnnrennnnnnnnnne 17 Revision 1 4 Page ili FFM100 User s Manual 3 4 10 Configuring Channel 40 Flow Instance arrrnrnnnrnrnnnerrannrnranrennnnnernnnsrnnnsennnnner 17 3 4 11 Configuring Channel 0 Flow Label rrrrannrnnnnnrnrnnnrnnannrnrannnnnnnnnnnnnsnnnnnennnnner 17 3 4 12 Configuring Channel 0 Volume Instance rrnrrrnrnnnvnnnnnvnvnnrennnrrennnrrennnnrennnne 17 3 4 13 Configuring Channel 0 Volume Label rannnnnnnnnnnnnnnnnnnrnnnnnennnnnennnnnnnnnnnnnnnne 17 3 5 Gohfidg rng GS hahfiel JET vasssrsssgssesodsssegeeke A 17 351 Eriabling Disablina Channel E ien undue bu beoe e i ree e te ir ei e et ien 17 3 5 2 Configuring Channel 1 Engine Instance seeeeeeeeereeeeeese 18 3 5 3 Configuring Channel 1 Engine Label annrnnnnnrnnnnnrnnnnnrnnnnnvnnnnnnnnnnsnnnnnsnnnnnee 18 3 5 4 Gontiguring Channel 1 IKSTaetOEss 44225 18 3 5 5 Configuring Channel 1 Temperature Coefficient seessssssss 18 3 5 6 Configuring Channel 1 Data Damping Period sssesusss 18 3 5 7 Resetting the Total Volume Recorded for Channel 1 19 3 5 8 Configuring Channel 1 Temperature Instance
21. hart for Diesel Engine Applications 7 FIgure 6 MOUNTING IDE FEMTOO suede oci otia buo drap hehe nea bevi quta ideo eid pedune Dese va o Dex ne beca 10 Figure 7 Fluid Flow Sensor Installation with Bypass and Isolating Valves 11 Figure 8 Fluid flow sensor Connection Diagram rrrrnnrnnnnnrvnnnnenvnnnrnvnnnrnrnnnennnnnennnnnnnnnnennnnner 12 Figure 9 NMEA 20009 Connector Face Views rrrrrrrrrvrrrvvvrvrrvrnrrrenenrnrrnnrrvnnnrsrrrsrrrrnersrersennne 13 Figure TO s Troubleshooting GUDE sia 21 Figure TT MOUNTING Surnace Templie srno pinon etes uaa e ae EI PEU e RUE U cera cese cu sueta 24 Table of Appendices Appendix A NMEA 2000 Interfacllitusssss s vidct tte tb UR e Pub Rr e t t E us A1 Page iv Hevision 1 4 Maretran 1 General 1 1 Introduction 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 20008 network Fluid Flow sensors sold separately This allows you to observe engine fuel usage on a vessel where there are NMEA 2000 compatible displays With the appropriate sensor the FFM100 reports flow rate for diesel engines or gasoline engines The FFM100 can be used with the positive displacement se
22. he default data damping period is 3 0 seconds 3 4 6 Resetting the Total Volume Recorded for Channel 0 The FFM100 maintains the total volume recorded in EEPROM so that it is maintained across power cycles Select this menu entry to reset the total volume recorded to zero Page 16 Hevision 1 4 Maretran 3 4 7 Configuring Channel 40 Temperature Instance Program this parameter to match the desired instance number of the temperature reading for this channel You can program this parameter to any value between 0 and 252 The default value for this parameter is 0 3 4 8 Configuring Channel 40 Temperature Source Program this parameter to match the desired instance number of the temperature reading for this channel You can program this parameter to any value between 0 and 252 The default value for this parameter is 129 User Defined 3 4 9 Configuring Channel 40 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 3 4 10 Configuring Channel 40 Flow Instance Program this parameter to match the desired instance number of the flow reading for this channel You can program this parameter to any value between 0 and 252 The default value for this parameter is O 3 4 11 Configuring Channel 0 Flow Label Program this parameter with a text string
23. ity for the selection of the software programs or products to achieve the intended results and for the installation use and results obtained from said programs or products No specifications samples descriptions or illustrations provided Maretron to Purchaser whether directly in trade literature brochures or other documentation shall be construed as warranties of any kind and any failure to conform with such specifications samples descriptions or illustrations shall not constitute any breach of Maretron s limited warranty Warranty Return Procedure To apply for warranty claims contact Maretron or one of its dealers to describe the problem and determine the appropriate course of action If a return is necessary place the product in its original packaging together with proof of purchase and send to an Authorized Maretron Service Location You are responsible for all shipping and insurance charges Maretron will return the replaced or repaired product with all shipping and handling prepaid except for requests requiring expedited shipping i e overnight shipments Failure to follow this warranty return procedure could result in the product s warranty becoming null and void Maretron reserves the right to modify or replace at its sole discretion without prior notification the warranty listed above To obtain a copy of the then current warranty policy please go to the following web page http www maretron com company warranty php Revi
24. l used for this channel You can program this parameter to any value between 0 and 252 3 5 3 Configuring Channel 1 Engine Label NOTE This parameter is available only when the Operating Mode of the FFM100 is set to Iwo 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 3 5 5 Configuring Channel 1 Temperature Coefficient NOTE This parameter is available only when the Operating Mode of the FFM100 is set to Differential Mode In a diesel engine the diesel fuel is used to help cool the fuel injection system Therefore the fuel returned from the engine to the tank has a higher temperature than the fuel sent to the engine from the tank Diesel fuel expands when heated To calculate the most accurate fuel usage measurement the FFM100 accounts for this expansion by sensing the temperature at the supply flow sensor and the receive flow sensor and calculating the effect of the temperature difference on the fuel expansion In order to do this compensation this parameter is programmed with the appropriate value for thermal expansion coefficient of the fluid being measured The default value of this field is 0 08396
25. luidflow sensor 0 temperature sensor connection 8 Gi ___ Fluid flowsensor 1 ground connection 9 Ali ___ Fluid flow sensor 1 phase A connection 1 1 Table 1 Fluid Flow Sensor Connections Revision 1 4 Page 11 FFM100 User s Manual For differential mode Channel 0 must be connected to the fuel flow sensor on the supply fuel line and Channel 1 must be connected to the fuel flow sensor on the return fuel line Please refer to Figure 8 for connecting the FFM100 to a M1AR M2AR M4AR M8AR or M16AR fluid flow sensor This figure shows the connection of the fluid flow sensor to channel 0 Connections to other channels are similar Hed Green PO GOnle AO 9 BO C0 o S TO P1N G1 A1 0 Bis C1 8 T1S O EO A Fluid flow sensor FFM100 Screw Terminals Figure 8 Fluid flow sensor Connection Diagram 2 5 2 NMEA 2000 Connection The NMEA 2000 connector can be found on the side of the enclosure The NMEA 20009 connector is a round five pin male connector see Figure 9 You connect the FFM100 to an NMEA 20009 network using a Maretron NMEA 20009 cable or an NMEA 20009 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 Connect the other end of the cable
26. lves the following steps Please refer to the individual sections for additional details Unpack the Box Section 2 1 Choose a Mounting Location Section 2 2 Mount the FFM100 Section 2 3 Mount the Flow Sensors and Connect Fluid Lines Section 2 4 Connect the Flow Sensors to the FFM100 Section 2 5 1 Connect the FFM100 to the NMEA 20009 network Section 2 5 1 Configure the FFM100 Section 3 QUOD UII a 1 6 Theory of Operation The FFM100 operates by using positive displacement fluid flow sensors These sensors are volumetric they measure the volume of fluid passing through them as opposed to the mass of the fluid 1 6 1 Operating Modes The FFM100 can operate in one of two user selectable operating modes 1 Differential Flow Rate this mode is used for diesel engines that recirculate unused fuel back into the fuel tank These engines will have separate supply and return fuel lines In this mode Channel 0 must be connected to the fuel flow sensor on the supply fuel line and Channel 1 must be connected to the fuel flow sensor on the return fuel line 2 Two Independent Flow Rates the FFM100 can measure flow rates from two independent sources for example a water flow rate on one channel and a gasoline fuel flow rate on another channel 1 6 2 Sensor Accuracy The M1AR M2AR M4AR M8AR and M16AR fuel flow sensors use positive displacement technology These sensors are extremely accuracy over a wide flow range Pag
27. male to the NMEA 20008 network in the same manner The FFM100 is designed such that you can plug or unplug it from an NMEA 20009 network while the power to the network is connected or disconnected Please follow recommended practices for installing NMEA 20009 network products Page 12 Hevision 1 4 Maretran Sockets Pins Connector Threads Connector Threads Male Connector Female Connector Pin 1 Shield Pin 2 NET S power supply positive V Pin 3 NET C power supply common V Pin 4 NET H CAN H Pin 5 NET L CAN L Figure 9 NMEA 2000 Connector Face Views 3 Configuring the FFM100 The FFM100 has several configurable parameters which are shown below including the default values If you are not using the default values then you will need to configure the FFM100 appropriately You can configure the FFM100 using a Maretron DSM150 display DSM250 display or Maretron N2KAnalyzer software For full details on the configuration procedure please refer to the User s Manual for the product which you are using to configure the FFM100 1 Advanced Configuration Section 3 1 Device Instance Channel 0 Installation Channel 1 Installation Channel 0 Allow negative flow Channel 1 Allow negative flow Differential Mode Allow negative flow Installation Description NMEA 2000 PGN Enable Disable i Restore Factory Defaults 2 Device Label Section 3 2 3 Operating Mode Section 3 3 4 Channel
28. ngines by separately measuring the fuel sent to the engine via the supply line and the fuel returned to the fuel tank from the engine via the return line The difference between these two readings is the fuel consumption of the engine Please refer to Figure 4 below for a system diagram demonstrating the location of the supply and return fuel flow sensors in a diesel fuel system Revision 1 4 Page 5 FFM100 User s Manual FFM100 ken Supply Fuel Flow Sensor Fuel Filter gt me DEEP S9rr Return Fuel Flow Sensor e Fuel Tank Figure 4 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 When using volumetric sensors such as positive displacement sensors or turbine flow sensors simply subtracting the return flow rate from the supply flow rate without taking these factors into account will result in the fuel consumption being underestimated In fact without Page 6 Hevision 1 4 Maretran 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 The M1AR M2AR M4AR M8AR and M16AR f
29. nsors to detect flow rates of many other types of fluid as well including water hydraulic oil or other fluids The Maretron FFM100 is designed to operate within the harsh demands of the marine environment However no piece of marine electronic equipment can function properly unless installed calibrated and maintained in the correct manner Please read carefully and follow these instructions for installation calibration and usage of the Maretron FFM100 in order to ensure optimal performance 1 2 Firmware Revision This manual corresponds to FFM100 firmware revision 1 2 2 1 1 3 Features The Maretron FFM100 has the following features NMEA 2000 interface Adapts up to two fluid flow sensors to the NMEA 2000 network Each channel independently programmable to match fluid flow sensor characteristics The FFM100 can be programmed to measure a differential flow rate using two fluid flow sensors supply and return flow for diesel engines or two completely independent flow rates 1 4 FFM100 Accessories Maretron offers the following accessories for the FFM100 e M1AR Fuel Flow Sensor 2 to 100 LPH 0 53 to 26 4 GPH e M2AR Fuel Flow Sensor 25 To 500 LPH 6 6 to 132 GPH e M4AR Fuel Flow Sensor 180 To 1500 LPH 48 to 396 GPH e M8AR Fuel Flow Sensor 8 To 70 LPM 2 1 to 18 5 GPM e M16AR Fuel Flow Sensor 10 To 100 LPM 2 6 to 26 4 GPM Hevision 1 4 Page 1 FFM100 User s Manual 1 5 Quick Install Installing the Maretron FFM100 invo
30. onfiguring NMEA 2000 PGN Enable Disable The FFM100 is capable of transmitting NMEA 20009 messages or PGNs associated with monitored fluid senders You may individually enable or disable each of these messages You may also change the rate of transmission of each of these messages if desired 3 1 9 Restoring Factory Default Settings selecting this configuration option causes all stored parameters in the FFM100 to be reset to the values they contained when the unit was manufactured 3 2 Configuring the Device Label Program this parameter with a text string which identifies this device Maretron display products will display this label text when you are selecting data to display 3 3 Configuring the Operating Mode The FFM100 can be operated in one of two selectable operating modes 1 Differential Flow Rate default in this mode the FFM100 measures fuel consumption of a diesel engine by measuring the flow rate of the fuel sent from the fuel tank to the engine and the flow rate of the fuel returned from the engine to the fuel tank and computing the difference between these Revision 1 4 Page 15 FFM100 User s Manual two flow rates with temperature compensation This difference is the flow rate of the fuel actually consumed by the engine and is transmitted as a single parameter over the NMEA 2000 network In this mode Channel 0 must be connected to the fuel flow sensor on the supply fuel line and Channel 1 must be connected to
31. otal Engine Hours The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available 8 Engine Coolant Pressure The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available 9 Fuel Pressure The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available 10 Reserved The FFM100 sets all bits in this field to a value of 1 11 Engine Discrete Status 1 The FFM100 sets all bits in this field to a value of 0 12 Engine Discrete Status 2 The FFM100 sets all bits in this field to a value of 0 13 Percent Engine Load The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available 14 Percent Engine Torque The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available PGN 127497 Trip Parameters Engine The FFM100 uses this PGN to transmit more slowly changing engine data The factory default for periodic transmission rate is once per second The transmission of this PGN can be disabled see PGN 126208 NMEA Request Group Function Transmission Periodic Rate Field 1 Engine Instance This field indicates the particular engine for which this data applies A single engine will have an instance of 0 Engines in multi engine boats will be numbered starting at 0 at the bow of the boat incrementing to n going in towards the stern of the boat For engines at the same distance
32. s by circumstances beyond Maretron s control to improper installation operation maintenance or storage or to other than normal use or service THE FOREGOING WARRANTIES ARE EXPRESSLY IN LIEU OF AND EXCLUDES ALL OTHER EXPRESS OR IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND OF FITNESS FOR A PARTICULAR PURPOSE otatements made by any person including representatives of Maretron which are inconsistent or in conflict with the terms of this Limited Warranty shall not be binding upon Maretron unless reduced to writing and approved by an officer of Maretron IN NO CASE WILL MARETRON BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES DAMAGES FOR LOSS OF USE LOSS OF ANTICIPATED PROFITS OR SAVINGS OR ANY OTHER LOSS INCURRED BECAUSE OF INTERRUPTION OF SERVICE IN NO EVENT SHALL MARETRON S AGGREGATE LIABILITY EXCEED THE PURCHASE PRICE OF THE PRODUCT S INVOLVED MARETRON SHALL NOT BE SUBJECT TO ANY OTHER OBLIGATIONS OR LIABILITIES WHETHER ARISING OUT OF BREACH OF CONTRACT OR WARRANTY TORT INCLUDING NEGLIGENCE OR OTHER THEORIES OF LAW WITH RESPECT TO PRODUCTS SOLD OR SERVICES RENDERED BY MARETRON OR ANY UNDERTAKINGS ACTS OR OMISSIONS RELATING THERETO Maretron does not warrant that the functions contained in any software programs or products will meet purchaser s requirements or that the operation of the software programs or products will be uninterrupted or error free Purchaser assumes responsibil
33. sion 1 4 Page 25 FFM100 User s Manual This page intentionally left blank Page 26 Revision 1 4 Maretran Appendix A NMEA 2000 Interfacing FFM100 NMEA 2000 Periodic Data Transmitted PGNs PGN 65286 Fluid Flow Rate The FFM100 uses this proprietary PGN to provide a regular transmission of fluid flow rates for various types of fluids The factory default for periodic transmission rate is twice every second The transmission of this PGN can be disabled see PGN 126208 NMEA Request Group Function Transmission Periodic Rate Field 1 Manufacturer Code This field contains Maretron s NMEA 20000 manufacturer code which is 137 Reserved The FFM100 sets all bits in this field to a value of 1 Industry Group This field contains the Marine industry group code which is 4 SID The sequence identifier field is used to tie related PGNs together Flow Rate Instance The FFM100 sets this field to identify a particular fluid flow measurement from the fluid type specified in Field 6 Every flow measurement from a given fluid type on the network should have a distinct instance value so that monitoring devices and displays can identify which measurement is which 6 Fluid Type This field is used to indicate the type of fluid flow measurement being taken Possible values for this field include Fuel Fresh Water Waste Water Live Well Oil and Black Water 7 Reserved bits The FFM100 sets all bits in this field to a
34. the fuel flow sensor on the return fuel line 2 Two Individual Flow Rates in this mode the FFM100 can measure two independent flow rates of any fluids diesel oil water etc and transmit the two flow rate measurements as separate parameters 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 rate and transmit it over the NMEA 2000 network If this parameter is programmed to Disable the channel will be completely disabled and will not measure flow rate nor transmit it over the NMEA 2000 network 3 4 2 Configuring Channel 0 Engine Instance Program this parameter to match the desired engine instance number of the flow rate and total fuel used for this channel You can program this parameter to any value between 0 and 252 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 40 K factor Program this parameter to match the K factor that appears on the flow sensor connected to this channel 3 4 5 Configuring Channel 40 Data Damping Period You can configure a damping parameter to smooth the flow rate readings or make them more responsive The data damping is configurable between 0 2 25 0 seconds T
35. to indicate the trip volume in units of 1x10 m Revision 1 4 Appendix A NMEA 2000 Interfacing Page A1 FFM100 User s Manual PGN 127489 Engine Parameters Dynamic The FFM100 uses this PGN to transmit fluid flow rate information The factory default for periodic transmission rate is twice per second The transmission of this PGN can be disabled see PGN 126208 NMEA Request Group Function Transmission Periodic Rate Field 1 Engine Instance This field indicates the particular engine for which this data applies A single engine will have an instance of 0 Engines in multi engine boats will be numbered starting at 0 at the bow of the boat incrementing to n going in towards the stern of the boat For engines at the same distance from the bow are stern the engines are numbered starting from the port side and proceeding towards the starboard side 2 Engine Oil Pressure The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available 3 Engine Oil Temperature The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available 4 Engine Temperature The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available o Alternator Potential The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available 6 Fuel Rate This field indicates the fuel consumption rate of the engine in units of 0 0001 cubic meters hour 7 T
36. tron 2 2 Choosing a Mounting Location Please consider the following when choosing a mounting location 1 The FFM100 is waterproof so it can be mounted in a damp or dry location 2 he orientation is not important so the FFM100 can be mounted on a horizontal deck vertical bulkhead or upside down if desired 3 The FFM100 is temperature rated to 55 C 130 F so it should be mounted away from engines or engine rooms where the operating temperature exceeds the specified limit 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 6 below Do not use threadlocking compounds containing methacrylate ester such as Loctite Red 271 as they will cause stress cracking of the plastic enclosure Hevision 1 4 Page 9 FFM100 User s Manual Figure 6 Mounting the FFM100 2 4 Mounting the Fluid Flow Sensor Since the FFM100 supports different fluid flow sensors depending on the application please consult the installation instructions that are packaged with each sensor for detailed installation instructions When plumbing the fluid flow sensors into your fluid flow system please keep in mind that the fluid flow sensors may need to be removed for servicing Installing the fluid flow sensors with an isolating valve before and after the sensor normally operated in the fully open position and a bypass loop with a bypass
37. uel consumption you wish to monitor Approximate Engine Fluid Flow Sensor Flow Rate Range Power Range see warning above M1AR 0 53 to 26 4 GPH 20 to 200 HP 2 to 100 LPH 14 9 to 149 kW 15 to 500 LPH 149 to 746 kW 180 to 1500 LPH 746 to 2237 kW 8 to 70 LPM 223 kW to 6266 kW 10 to 100 LPM 6266 kW to 8952 kW Figure 5 Fluid Flow Sensor Selection Chart for Diesel Engine Applications Hevision 1 4 Page 7 FFM100 User s Manual If you are unable to obtain maximum supply fuel flow rates from the engine manufacturer another way to get a good estimate of the engine s fuel feed rate is to disconnect the fuel return line from the tank and direct it into a five gallon bucket Run the engine at maximum RPM until the bucket is filled and calculate the return fuel flow rate by dividing the amount of fuel in the bucket by the amount of time it took to fill the bucket For instance if it took 15 minutes 0 25 hour to fill the five gallon bucket the return flow rate is 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 supply flow rate Max return flow rate Max consumption flow rate For this example let s assume that the engine manufacturer s documentation shows that the fuel consumption of the engine at the ma
38. uel flow sensors feature embedded temperature sensors so that the temperature of both the supply and return fuel is sensed and used in real time by the FFM100 to compensate for the expansion of the fuel due to the increase in temperature for the most accurate possible fuel flow measurement 1 6 5 Fuel Flow Sensor Selection The fluid flow sensors must likewise be sized to accommodate the flow rate of fluid flowing through the supply and return lines as opposed to the net fuel consumption used by the engine If too small a fuel flow sensor is used excessive back pressure will occur through the sensors and the sensor may wear prematurely For example consider the M1AR fluid flow sensor which is rated at a maximum flow rate of 26 4 GPH 100 LPH A typical diesel engine will consume 20 of the fuel sent to the engine so under this assumption this fuel sensor will be able to support a diesel engine which consumes 5 28 GPH 20 LPH WARNING The fluid flow sensor you select must have sufficient range to measure the supply flow rate of the engine whose fuel consumption you are monitoring The table in Figure 5 below shows the maximum fuel supply flow rates that can be sensed by each fuel flow sensor and approximate engine power ranges for each fuel flow sensor type Please consult your engine s documentation or contact your engine manufacturer for the maximum supply fuel flow rate sometimes called fuel feed rate for the specific engine whose f
39. urement is which Temperature Source This field is used to indicate the type of temperature measurement being taken Possible values for this field include Sea Temperature Outside Temperature Inside Temperature Engine Room Temperature Main Cabin Temperature Live Well Temperature Bait Well Temperature Refrigeration Temperature Heating System Temperature and Freezer Temperature Actual Temperature This field is used to indicate the temperature whose source is specified in field 2 in units of 0 01 C Set Temperature The FFM100 sets this field to a reserved NMEA 2000 value indicating Data Not Available Reserved bits The FFM100 sets all bits in this field to a value of 1 PGN 130316 Temperature Extended Range 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 NMEA Request Group Function Transmission Periodic Rate Field 1 2 SID The sequence identifier field is used to tie related PGNs together Temperature Instance The FFM100 sets this field to identify a particular temperature measurement from the source specified in Field 3 Every temperature measurement from a given source type on the network should have a distinct instance value so that monitoring devices and displays can identify which measurement is which
40. value of 1 8 Fluid Flow Rate This field is used to indicate the rate of fluid flow in units of 1x10 m hour PGN 65287 Trip Volume The FFM100 uses this proprietary PGN to provide a regular transmission of trip volume The factory default for periodic transmission rate is twice every second The transmission of this PGN can be disabled and the trip volume can be reset over the NMEA 2000 network see PGN 126208 NMEA Request Group Function Transmission Periodic Rate Field 1 Manufacturer Code This field contains Maretron s NMEA 20000 manufacturer code which is 137 Reserved The FFM100 sets all bits in this field to a value of 1 Industry Group This field contains the Marine industry group code which is 4 SID The sequence identifier field is used to tie related PGNs together Volume Instance The FFM100 sets this field to identify a particular trip volume measurement from the fluid type specified in Field 6 Every trip volume measurement from a given fluid type on the network should have a distinct instance value so that monitoring devices and displays can identify which measurement is which 6 Fluid Type This field is used to indicate the type of trip volume measurement being taken Possible values for this field include Fuel Fresh Water Waste Water Live Well Oil and Black Water 7 Reserved bits The FFM100 sets all bits in this field to a value of 1 8 Trip Volume This field is used
41. w Rate 80 2 LPH This assumes that the supply sensor reads 0 2596 high Measured Return Flow Rate 59 85 LPH This assumes that the return sensor reads 0 25 low Page 8 Hevision 1 4 Maretran Calculated Fuel Consumption 20 35 LPH Error 1 75 The resulting 1 75 error value is what appears in the FFM100 specifications for differential flow rate accuracy 1 6 7 Choosing a Fluid Flow Sensor Mounting Location Choosing a proper mounting location for fluid flow sensors 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 installation instructions packaged with each fuel flow sensor contain details on choosing a mounting location and installation The ideal location for the supply fuel flow sensor is immediately after the fuel filter 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 Removing these screws will void the warranty on the sensor 2 Installation 2 1 Unpacking the Box When unpacking the box containing the Maretron FFM100 you should find the following items 1 FFM100 Fuel Flow Monitor 1 Parts Bag containing 4 Stainless Steel Mounting Screws 1 FFM100 User s Manual 1 Warranty Registration Card If any of these items are missing or damaged please contact Mare
42. ximum RPM is 5 gallons per hour We can calculate the maximum supply flow rate as follows Max supply flow rate 20 gallons per hour 5 gallons per hour 25 gallons per hour The 25 gallons per hour maximum supply flow rate is within the specifications of the M1AR fuel flow sensor so the M1AR is appropriate for this fuel flow application If the maximum supply flow rate had exceeded the M1AR specifications you would have needed to select the next larger fuel flow sensor the M2AR 1 6 6 Accuracy of Diesel Fuel Flow Measurement Even though the fluid flow sensors used with the FFM100 are rated at 0 25 accuracy since the fuel consumption measurement is calculated as the difference of the supply and return fuel flow rates the accuracy of the fuel consumption measurement when operating in differential mode for a diesel engine depends on the ratio of the flow rate of fuel consumed by the engine to the flow rate of fuel supplied to the engine Following is a worst case analysis of diesel engine fuel consumption measurement accuracy with a 4 1 supply rate to consumption rate ratio this ratio is typical of many diesel engines This assumes that both the supply and return fuel flow sensors are at the limit of their specifications in the way that will cause the most inaccuracy in the fuel consumption calculation Actual Supply Flow Rate 80 0 LPH Actual Engine Fuel Consumption 20 0 LPH Actual Return Flow Rate 60 0 LPH Measured Supply Flo

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