TLM200 Tank Level Monitor User's Manual
Contents
1. Revision 1 1 Page 7 www busse yachtshop de info busse yachtshop de TLM200 User s Manual 3 4 Tank Depth or Custom Calibration The TLM200 can be easily programmed for use with tanks of rectangular cross section see Section 3 4 1 For non rectangular tank shapes you can perform custom calibration so that the TLM200 accurately reflects fluid levels See Section 3 4 2 3 4 1 Tank Depth Programming The TLM200 can be used with tanks that have rectangular cross sections The TLM200 comes from the factory programmed for a 104 2 64m deep tank In order to obtain correct level readings on a tank having a rectangular cross section but shallower than 104 you must program the TLM200 with the actual depth of the tank using a display product such as the Maretron DSM250 Refer to the DSM250 User s Manual for configuring the TLM200 as the manual provides detailed instruction on configuration procedures 3 4 2 Custom Calibration For accurate tank level readings the TLM200 must be custom calibrated if the tank shape is irregular or non rectangular You can calibrate the TLM200 using a display product such as the Maretron DSM250 Refer to the user s manual of the particular product that will be used for configuring the TLM200 as these manuals provide detailed instruction on configuration procedures 4 Maintenance Regular maintenance is not required however an occasional inspection will ensure continued proper operation of the M2. is programmed properly see Section 3 4 1 If using custom calibration re calibrate the TLM200 see Section Figure 5 Troubleshooting Guide If these steps do not solve your problem please contact Maretron Technical Support refer to Section 7 for contact information 6 Technical Specifications Specifications Parameter Value Comment Accuracy 2 Resolution 1 Number of Tank Types 16 Fuel Fresh Water Waste Water Live Well Oil etc Number of Tanks per Tank Type 16 16 Tanks per Tank Type Numbered 0 15 Maximum Tank Depth 104 2 64m Minimum Depth Reading 6 15 24cm Sensor Deadband Support for Irregularly Shaped Yes Can be Calibrated for any Shape Tank Tanks Programmable Tank Capacity Yes Allows Displays to Calculate Amount Remaining Maximum Tank Angle 6 Certifications Parameter Comment NMEA 2000 Level B Maritime Navigation and Radiocommunication Equipment amp Systems Tested to IEC 60945 FCC and CE Mark Electromagnetic Compatibility NMEA 2000 Parameter Group Numbers PGNs See Appendix A for Details Description PGN PGN Name Default Rate Periodic Data PGNs 127505 Fluid Level 0 4 Times Second Response to Requested PGNs 126464 PGN List Transmit and Receive N A 126996 Product Information N A Revision 1 1 Page 9 www busse yachtshop de info busse yachtshop de TLM200 User s
3. the TLM200 Interface Component The actual mounting of the TLM200 interface component is not critical and the unit can be mounted in any orientation The TLM200 NMEA 2000 connector and cable are all waterproof rated IP67 protected against temporary immersion in water so you can mount the unit virtually anywhere Once you have located a suitable mounting location you can secure the TLM200 interface component by placing wire ties with screw eyes on the attached cables next to the TLM200 interface component Revision 1 1 Page 5 www busse yachtshop de info busse yachtshop de TLM200 User s Manual 2 4 Connecting the TLM200 There is one connection point see Figure 3 for the TLM200 the NMEA 2000 connection Please refer to Section 2 4 1 for making NMEA 2000 connection Cable to NMEA 2000 Sensor Connector Component A RE eri gt Moe thao Tank Level Mppis IMME 2 16 YOC Sh S999999 van mA NMEA 2000 LEMN Figure 3 TLM200 Connections 2 4 1 Connecting to NMEA 2000 Interface The Maretron TLM200 provides a connection to an NMEA 2000 interface through a five pin male connector see Figure 4 You connect the TLM200 to an 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 TLM200 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
4. types Fuel Fresh Water Waste Water Live Well Oil Black Water DOJ AUNI You configure or program a TLM200 tank type using a display product such as the Maretron DSM250 Refer to the DSM250 User s Manual for configuring the TLM200 as the manual provides detailed instruction on configuration procedures 3 2 Configuring Tank Number As shipped from the factory the TLM200 transmits the Tank Number as 0 The TLM200 supports up to sixteen tanks 0 through 15 for a given type of tank which means you can monitor up to 16 separate fuel tanks or 16 separate fresh water tanks The TLM200 is configured or programmed by choosing a TLM200 tank number using a display product such as the Maretron DSM250 Refer to the DSM250 User s Manual for configuring the TLM200 as the manual provides detailed instruction on configuration procedures 3 3 Configuring Tank Capacity In addition to indicating the fluid level within a tank the TLM200 also has the ability to be configured or programmed with the attached tank s capacity This way you will be able to view the tank s capacity as well as the amount of fuel remaining anywhere on the vessel where there is an NMEA 2000 compatible display It is not required but you can enter the TLM200 tank capacity using a display product such as the Maretron DSM250 Refer to the DSM250 User s Manual for configuring the TLM200 as the manual provides detailed instruction on configuration procedures
5. Manual 126998 Configuration Information N A Protocol PGNs 059392 ISO Acknowledge N A 059904 ISO Request N A 060928 ISO Address Claim N A 065240 ISO Address Command N A 126208 NMEA N A Electrical Parameter Value Comment Operating Voltage 9 to 16 Volts DC Voltage Power Consumption lt 100mA Average Current Drain Load Equivalence Number LEN 2 NMEA 2000 Spec 1LEN 50mA Reverse Battery Protection Yes Indefinitely Load Dump Protection Yes Energy Rated per SAE J1113 Mechanical Parameter Value Comment Size 3 9 x 1 2 x 1 0 Interface Component 99mm x 30 5mm x 25 4mm 2 6 dia X 2 0 Sensor Component 66 0mm dia x 50 8mm 96 2 44m Interconnecting Cable Weight 15 oz 425g Mounting SAE J1810 5 hole bolt Can mount to 1 25 BSP or 1 5 NPT using pattern available adapters Environmental 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 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 7days 40 C 95 RH after 2 hour Salt Sp
6. Maretron TLM200 Tank Level Monitor User s Manual Revision 1 1 Copyright 2009 Maretron LLP All Rights Reserved Maretron LLP 9014 N 23 Ave 10 Phoenix AZ 85021 http www maretron com Maretron Manual Part M002401 Revision 1 1 Page www busse yachtshop de info busse yachtshop de TLM200 User s Manual Revision History Revision Description 1 0 Original document 1 1 Removed all references to airlocks Corrected typo in NMEA Protocol PGN list Page ii Revision 1 1 www busse yachtshop de info busse yachtshop de Maretron Table of Contents k RMS re edet 1 MM MAH hase etd te cs acre E AE eee edie even eee eee eee 1 1 2 Gasoline TANKS aoa e vee evsueyieaveeeytreuneevivevicaybeuysueuiveeteryhveybeeyiueul eureauieey bestest enekele 1 1 3 Firmware REVISION icici ae ieee VEE AEA EAAS 1 14 POTN S onirin i a a a aaa a aaar aiani ia 1 Ve TEM200 ACCCSSONGS sce tect tutta ee a e ehetieteebbie 2 1 6 Quick Install ieee ln s cee ed cress eae ened esaedeic iene cece dedenndedc det careeicemese bre eee rennene nnn 2 2 AMS TAM AMO escacetascoreaegscscsiinctecd dvaiitadendtinc endian telbadeicc deed bedandnen iiad eid i enia ideia 2 2 1 Unpacking the BOK oare we tee den 2 2 2 Choosing a Mounting Location nnn eenenennneeneeeeerennnnnnnnneeneneeeennnnnnnnnneneeneenn 2 2 2 1 Effect of Pitch and Roll on the TILM200 ssigenegeriensterenertberie tekende rigenddelide 3 2 3 Mounting hen EMZOD sa
7. OR 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 responsibility 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
8. aretron TLM200 Perform the following tasks periodically 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 2000 interface and tighten if necessary 5 Troubleshooting If you notice unexpected operation of the Maretron TLM200 follow the troubleshooting procedures in this section to remedy simple problems Page 8 Revision 1 1 www busse yachtshop de info busse yachtshop de No tank level output If operating in the NMEA 2000 Maretron Mode check the connection to the NMEA 2000 interface see Section 2 4 1 and r se if necessary Ensure that power is supplied to the NMEA 2000 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 Removed the TLM200 sensor component from the tank opening and ensure that the surface of the ultrasonic sensor is not fouled Inaccurate tank level output If operating with a rectangular tank ensure that the tank depth
9. ct the TLM200 Section 2 4 Configure or Program the Tank Type Section 3 1 Configure or Program the Tank Number Section 3 2 Configure or Program Tank Capacity Section 3 3 Configure for Tank Depth and Shape o Configure or Program the Tank Depth Section 3 4 1 o Custom Calibration Section 3 4 2 NOOR ON 2 Installation 2 1 Unpacking the Box When unpacking the box containing the Maretron TLM200 you should find the following items e 1 TLM200 Tank Level Monitor e 1 TLM200 Gasket e 1 TLM200 User s Manual e 1 Warranty Registration Card If any of these items are missing or damaged please contact Maretron 2 2 Choosing a Mounting Location The primary function of the TLM200 is to sense levels of liquid in tanks using ultrasonic technology and transmit this information over NMEA 2000 network so that tank level information can be viewed anywhere on the vessel where there is an NMEA 2000 compatible display The TLM200 tank level monitor consists of two parts 1 the sensor which mounts onto the top of the tank and contains the ultrasonic fuel measurement components and 2 the interface which converts the measured data into NMEA 2000 format and transmits the data over the NMEA 2000 network The interface component of the TLM200 may be mounted anywhere subject to the length of the cable connecting it to the sensor component Page 2 Revision 1 1 www busse yachtshop de info busse yachtshop de Ma
10. e 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 damages 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 Statements 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 F
11. his field identifies the type of fluid contained within the tank Currently the defined fluid types are fuel fresh water wastewater live well oil and black water The TLM200 ships from the factory with a default value of 0x0 indicating Fuel 3 Fluid Level This field is used to indicate the current fluid level in percentage The value transmitted in this field depends on the sender resistance value 4 Tank Capacity This field is used to indicate the tank capacity The TLM200 ships from the factory with a default value of OXFFFFFFFF indicating Data Not Available 5 Reserved This field is reserved by NMEA therefore the TLM200 sets all bits to a logic 1 Revision 1 1 Appendix A NMEA 2000 Interfacing Page Al www busse yachtshop de info busse yachtshop de
12. nector Face Views nnee 6 Figure 5 Troubleshooting Guide nnnnnnnnennnnnnenneneereereennnnnenneeeeeeeenennnnnnnnveneeneeeenennnnn 9 Table of Appendices Appendix A NMEA 2000 Interfacing nnee A1 Page iv Revision 1 1 www busse yachtshop de info busse yachtshop de Maretron 1 General 1 1 Introduction Congratulations on your purchase of the Maretron Tank Level Monitor TLM200 Maretron has designed and built your monitor to the highest standards for years of reliable dependable and accurate service The TLM200 is used to sense levels of liquid tanks using ultrasonic technology and transmit the liquid levels over the NMEA 2000 network This allows you to observe tank levels anywhere on the vessel where there is an NMEA 2000 compatible display such as the Maretron DSM250 The TLM200 is capable of sensing tanks up to 104 2 64m in depth It can be used for diesel fresh water grey water black water and oil tanks Unlike most tank senders that only work with rectangular tanks the TLM200 can be calibrated for irregular tank shapes so you know the true level of your tanks The TLM200 can be mounted on tanks with a SAE J1810 5 hole mounting pattern or to tanks using 1 5 NPT or 1 25 BSP threaded openings via available adapters The Maretron TLM200 is designed to operate within the harsh demands of the marine environment However no piece of marine electronic equipment can function properly unles
13. nsor component over the gasket so that the bolt holes line up Insert the mounting bolts through the TLM200 sensor component and gasket into the tank fitting the tank fitting may instead have studs installed so in this case install the nuts over the studs and tighten them to a torque of 10 15 ft lbs 13 6 20 3 N m Mounting Screws x5 Bal TLM200 Sensor Component TLM200 Gasket SAE 5 Bolt Tank Fitting TLM200 Interface Component Figure 1 TLM200 Mounting SAE 5 Hole Bolt Pattern Page 4 Revision 1 1 www busse yachtshop de info busse yachtshop de Maretron 2 3 1 2 Installation on a Tank with a 1 25 BSP or 1 5 NPT Threaded Tank Fitting For a threaded tank sender mounting hole first thread the adapter into the tank opening and tighten to a torque of 3 5 ft lbs 4 1 6 8 N m Next place the TLM200 gasket over the adapter so that the bolt holes on the gasket line up with the bolt holes on the adapter Place the TLM200 sensor component on top of the adapter so that the bolt holes on the TLM200 sensor component line up with the bolt holes on the adapter Place the included mounting screws through the bolt holes on the TLM200 sensor component and thread them into the adapter tightening them to a torque of 10 15 ft lbs 13 6 20 3 N m Mounting Screws x5 TLM200 Sensor Component TLM200 Gasket Threaded Adapter Threaded Tank Fitting AS Figure 2 TLM200 Mounting With Threaded Adapter 2 3 2 Mounting
14. ray Per IEC 60945 8 12 Electromagnet Emission Conducted and Radiated Emission per IEC 60945 9 Electromagnetic Immunity Conducted Radiated Supply and ESD per IEC 60945 10 Safety Precautions Dangerous Voltage Electromagnetic Radio Frequency per IEC 60945 12 Page 10 Revision 1 1 www busse yachtshop de info busse yachtshop de 7 Technical Support Maretron If you require technical support for Maretron products you can reach us in one of the following ways Telephone Fax E mail World Wide Web Mail Revision 1 1 1 866 550 9100 1 602 861 1777 support maretron com http www maretron com Maretron LLP Attn Technical Support 9014 N 23 Ave Suite 10 Phoenix AZ 85021 USA Page 11 www busse yachtshop de info busse yachtshop de TLM200 User s Manual 8 Maretron 2 Year Limited Warranty Maretron warrants the TLM200 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 abov
15. retron The sensor component of the TLM200 must be mounted on the tank whose level is to be monitored The mounting hole through which the TLM200 measures fluid level should be located as close to the center of the tank both front to back and side to side as possible This will ensure maximum accuracy of reading in the event that the vessel experiences pitch and roll 2 2 1 Effect of Pitch and Roll on the TLM200 Assuming that the TLM200 sensor component is mounted on a flat tank top the TLM200 will operate correctly as long as the vessel does not experience pitch and or roll in excess of 6 for an extended period of time This can occur on a sailboat when the boat is heeled over or ona powerboat with a non displacement planing hull Temporary pitch and roll due to wave motion and will not adversely affect tank level readings 2 3 Mounting the TLM200 2 3 1 Mounting the TLM200 Sensor Component The TLM200 comes from the factory ready to mount on a tank with the standard SAE J1810 5 Hole mounting pattern Maretron offers adapters to allow mounting the TLM200 on a tank with a 1 5 NPT connection or a 1 25 BSP connection Revision 1 1 Page 3 www busse yachtshop de info busse yachtshop de TLM200 User s Manual 2 3 1 1 Installation on a Tank with a SAE J1810 5 Bolt Fitting To install the TLM200 on a tank with a SAE J1850 5 bolt fitting place the gasket over the tank fitting so that the bolt holes line up Please the TLM200 se
16. s installed calibrated and maintained in the correct manner Please read carefully and follow these instructions for installation calibration and usage of the Maretron TLM200 in order to ensure optimal performance 1 2 Gasoline Tanks The TLM200 is NOT intended for use in tanks containing gasoline Use in tanks containing gasoline will void the product warranty 1 3 Firmware Revision This manual corresponds to TLM200 firmware revision 1 1 4 1 4 Features The Maretron TLM200 has the following features e Transmits liquid levels over an NMEA 2000 Interface e Integrated ultrasonic level sensor e Can be used in tanks up to 104 deep e SAE J1810 5 hole 1 5 NPT or 1 25 BSP Mounting e Accommodates Irregularly Shaped Tanks with 16 Point Calibration e 16 Programmable Tank Types Including Fuel Fresh Water Waste Water Live Well e Programmable Tank Number s Up to 16 per Tank Type e Programmable Tank Capacity Revision 1 1 Page 1 www busse yachtshop de info busse yachtshop de TLM200 User s Manual 1 5 TLM200 Accessories Maretron offers the following accessories for the TLM200 e TA 5H 1 5NPT 1 5 NPT Displacement Hull Tank Adapter e TA 5H 1 25BSP 1 25 BSP Displacement Hull Tank Adapter 1 6 Quick Install Installing the Maretron TLM200 involves 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 Conne
17. ssen yc searteiscircadecel bei dou elitciciggldaseniealgencibate ld neni ete 3 2 3 1 Mounting the TLM200 Sensor Component nennen eeeennnennnneen 3 2 3 2 Mounting the TLM200 Interface Component nennen eeeennnenneneen 5 2 4 Connecting the TLM200 ansssersernsaennsensesdrennteenennnndeeeentn orana benden nende otten senden 6 2 4 1 Connecting to NMEA 2000 Interface nanne 6 3 Configuring the TEM200 nnnminteeentnenentenserdebreneniende etende neben 7 3 1 Configuring Tank Type tects tenet deedeetee tenten 7 Se CGontig nng Tank NUMDOT sneven ee EE AKG 7 3 3 Configuring Tank Capacity eere onee 7 3 4 Tank Depth or Custom CADrAMON ss sanesnereerenasrnnnsersnstn bites sneek 8 3 4 1 Tank Depth Programming re er eea ekend 8 3 4 2 Custom Ce ROBO ereen 8 4 DNL CEs daidan pd aada dente adanida dbase oe bide danda o aariaa 8 5 TEOUBISSMOOUME nrs eten 8 6 Technical SPS ClO CUONNS sanne sanne eenst ren dbensaccouectebonde 9 7 Technical SUP DOM e ciiid aain 11 8 Maretron 2 Year Limited Warranty nanne enenennneeeeereeeenennnnnnneereeneeeennnnnnnnnnen 12 Revision 1 1 Page iii www busse yachtshop de info busse yachtshop de TLM200 User s Manual Table of Figures Figure 1 TLM200 Mounting SAE 5 Hole Bolt Pattern nanne eenennneenenee eenen 4 Figure 2 TLM200 Mounting With Threaded Adapter nnn eennnnnnnnneeeen ee eenennenn 5 Fig re 3 FEMZ00 Connect S a pE entente ane 6 Figure 4 NMEA 2000 Con
18. the cable connector is tightened firmly Connect the other end of the cable male to the NMEA 2000 network in the same manner The TLM200 is designed such that you can plug or unplug it from an NMEA 2000 network while the power to the network is connected or disconnected Please follow recommended practices for installing NMEA 2000 network products Pins Sockets Ne Connector Threads S 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 4 NMEA 2000 Connector Face Views Page 6 Revision 1 1 www busse yachtshop de info busse yachtshop de Maretron 3 Configuring the TLM200 The TLM200 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 refer to the corresponding section for configuring the TLM200 appropriately Tank Type Default is Fuel Section 3 1 Tank Number Default is Tank 0 Section 3 2 Tank Capacity Default is No Tank Capacity Transmitted Section 3 3 Tank Depth or Custom Calibration Default is a 104 2 64m deep tank with rectangular cross section Section 3 4 1 RON 3 1 Configuring Tank Type As shipped from the factory the TLM200 transmits the tank type as Fuel You can reconfigure the TLM200 for any of these tank
19. 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 Page 12 Revision 1 1 www busse yachtshop de info busse yachtshop de Maretron Appendix A NMEA 2000 Interfacing TLM200 NMEA 2000 Periodic Data Transmitted PGNs PGN 127505 Fluid Level The TLM200 uses this PGN to indicate the attached tank s fluid instance fluid type fluid level and tank capacity Field 1 Fluid Instance This field is used to identify the tank number and ranges between 0 and 15 There can be up to 16 tanks of a given type as defined by the Fluid Type field This field is programmable through the NMEA command PGN The TLM200 ships from the factory with a default value of zero 2 Fluid Type T
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