Blue Sea Systems M2 Vessel Systems Monitor User manual

M2 Vessel Systems Monitor (M2-VSM)
PN 1850
Installation Checklist
Check for components included
Read Warning and Cautions
Read QuickStart Installation Guide for mounting instructions
Read System Overview, Mounting Considerations, Detailed Wiring,
and Sensing Description
Read QuickStart Installation Guide for installation notes
Follow Initial System Setup instructions
 CongureDisplays
 CongureAlarms
Specications
Display Size 55mm x 28mm
Power Supply 7V–70V DC
Power Consumption 0.3W–1.0W*
NMEA2000LoadEquivalency 1
DC Voltage
Voltages 12V, 24V, 36V, 48V
Range 7V–70V DC
Resolution 0.01V DC
VoltageAccuracy +/-1%
DC Current
ShuntIncluded 1×PN8255(500A/50mV)
Range  −500Ato500A
CurrentAccuracy +/-1%
Resolution(100to500) 1A
Resolution(0.0to99.9) 0.1A
AlarmActivation HighandLowVoltage,
    HighCurrent,andLowBattery
AC Voltage
Range  50V–250VAC(RMS)
Resolution  1VAC
AC Current
Range  0Ato150A(300Aoptional)**
Resolution(100to150) 1A
Resolution(0.0to99.9) 0.1A
CurrentTransformer 1×PN8256(150A/50mA)
AlarmActivation HighandLowVoltage,Current,
    andFrequency
Frequency
Range  40Hz–90Hz
Resolution  1Hz
Power
Range 0W–45kW
Resolution(0W–9990W) 10W
Resolution(10kW–45kW) 0.1kW
Tanks†
Alarm  High/LowLevels
Senders  NorthAmerican240Ω–33Ω
European 10Ω–180Ω
    BlueSeaSystemsUltrasonic
Custom
SenderResolution 1%
CustomTankShapes AutoCalibration
AlarmNotication Runtimeperhour
    Cyclesper24-hour
Cycle Counter
Regulatory
Monitor face is IP66 – protected against powerful water jets
when installed according to instructions
* Variablewithvoltage,displayintensity,andsleepmode
** Willachieve300AwithanoptionalcurrenttransformerPN1829
† Compatiblewithbilgemonitorswithexternaloatswitchesorwithautomatic
 bilgeswitchesthatindicateonstatusviaa12Voutput.
Components Included
M2 Head Unit Surface Mount Gasket
Mounting Ring
Surface Mount Bezel
and Seal
Mounting Nut
Flat Mount Bezel
Screwdriver
Retail Package Only
Connectors
Bezel
Mount
Footer
Header
Carrier
Mount
#6-32 x 1/4"
Flat Head
Machine Screws
(4X)
#6-32 x 3/8"
Flat Head
Machine Screws
(4X)
Surface Mount Cover Flat Mount Clamp
Panel
Frame
PN 8255 Shunt (1X)
AC Current Transformer
8256
360 Panel Mounting Kit PN 1525 (sold separately)
1
Instructions

Resource Information
State-of-Charge(SOC)http://bluesea.com/viewresource/1324
ACCurrentMeasurementhttp://bluesea.com/viewresource/86
Warning and Caution Symbols
WARNING: The symbolreferstopossibleinjurytotheuserorsignicantdamagetothemeteriftheuserdoesnotfollowtheprocedures.
CAUTION: The symbolreferstorestrictionsandruleswithregardtopreventingdamagetothemeter.
WARNING
•VerifythatallACsourcesaredisconnectedbeforeconnectingordisconnectingthecurrenttransformer.Failuretodosowillgeneratelethalvoltages 
on the current transformer.
•Ifyouarenotknowledgeableaboutelectricalsystems,haveanelectricalprofessionalinstallthisunit.Thediagramsintheseinstructionspertainto 
the installation of M2 Digital Meters and not to the overall wiring of the vessel.
•Ifaninverterisinstalledonthevessel,itspowerleadsmustbedisconnectedatthebatterybeforethemeterisinstalled.
•IfanACgeneratorisinstalledonthevessel,itmustbestoppedandrenderedinoperablebeforethemeterisinstalled.
•VerifythatnootherDCorACsourcesareconnectedtothevessel’swiringbeforeinstallingthemeter.
CAUTION
• Thebackoftheunitisnotwaterproof.Donotinstallwherethebackofthemeterisexposedtowater.
Installation
1. TheM2VSMmustbeconnectedtoanon-switchedcircuittoensureaccurateandconsistentState-of-Chargemonitoring.
2.Makeallconnectionstothemeter’sterminalblockbeforeconnectingtheterminalblocktotheunit.
 Keephandsawayfromtheterminalblockwhenapplyingpowertothemeter.
3.AsthenalDCconnection,insertafuseintothein-linefuseholderonthewiretothepositive(+)batteryterminal.
Mounting Templates
Flat Mount
3.34" (84.8mm)
3.00" (76.2mm)
3.00" (76.2mm)
3.34" (84.8mm)
Surface Mount
3.40" (86.5mm)
3.46" (87.9mm)
Ø2.125"
(54mm)
2

STEP 1
Panel
Frame
360 Panel
Mount
Carrier
Use 1/4"
Mounting
Screws
STEP 2
Footer
Panel
Frame
Bezel
Header
Snap header
and footer
into mounting
clips and post.
Snap the
mounting bezel
into place
with the flat
edge up.
STEP 3
Panel
Frame
BezelFooter
Header
M2
Head
Unit
Mounting
Ring and Nut
Mounting
Substrate
Clamp
Flat
Mount
Bezel
M2
Head
Unit
Mounting
Ring and Nut
Mounting
Substrate
M2
Head
Unit
Surface
Mount
Bezel
and Seal
Mounting
Ring and Nut
Surface
Mount
Gasket
Surface
Mount
Cover
NOTE: During
installation use cover
to align the bezel
and gasket
Flat Mount
Surface Mount
360 Panel Mount PN 1525
Mounting Considerations
M2DigitalMetershavethreemountingmethods:Surfacemount,Flatpanelmount,and360panelmount.Whensurfacemountedperinstructionsthe
unitfaceiswaterprooftoIP66.Flatpaneland360mountingsystemsarenotwaterproof.Theunitshouldnotbeatpanelor360mountedifusedinan
exposedlocation.Forallmountings,thebackoftheunitisnotwaterproofandmustbekeptdry.
3

Functions
DC Functions
• Monitorthevoltagesofuptotwobatterybanksandcurrentdrawononebatterybank.
• ProvidesbatteryState-of-Charge(SoC),capacity,amphours(Ah)remaining,andchargecycles.
AC Functions
• Monitorsthevoltages,currentdraws,frequency,andpowerofoneACsource.
Tank/Bilge Functions
• Monitoruptotwotanksorbilges
• ProvidesHigh/Lowlevelalarmsforeachtank
• Keepstrackoftotalbilgeruntimeinthelasthour
• Keepstrackofthetotalnumberofbilgecyclesinthelast24hours.
• Keepstrackoftheaveragenumberof24-hrbilgecyclesinthelastweek
• Keepstrackofthetotalnumberofbilgecycles
Connections
IMPORTANT! TheSensingDescriptionsectionofthismanualgivesimportantdetailstothelocationofsensorsintheACandDCelectrical
systemsoftheboat.Improperlocationandcongurationofsensorscanresultinerroneousreadingsandpossibledamagetocomponents.
Pin-out Table
Meter Power Supply Connections
Allmetersmusthavepins1(DCNeg.)and2(DCPos.)connected.Thesepinsareusedtoprovidepowertothemeter.Connectpin1togroundand
pin2toa12Vto48Vpowersource.Pin2isalsousedtomonitorthevoltagesonbank2.Thecurrentdrawfromthemeterislessthan50mA(typically
around20mAiftheback-lightisoff).Itwouldtakemorethan2monthstodraina100Ahbatteryto50%.Ifabatteryisgoingtobeleftunattendedfor
morethantwomonths,itisrecommendedtodisconnectthebatteryfromthemeter.
Detailed Wiring
4
Connector Pin Assignment Table
A. 2 Pin Connector* 3.5mm Function
1
2
1
2
1
2
Battery 1-
Battery 1+
AC Voltage - Neutral
AC Voltage - Hot
DC Negative required connection
DC Supply/Battery 2+ required connection
3Tank/Bilge 1
B. 2 Pin Connector** 5mm
C. 8 Pin Connector* 3.5mm
4
5
6
7
8
USB
M5
Tank/Bilge 2
DC Shunt 1–
DC Shunt 1+
AC Current Transformer – ***
AC Current Transformer + ***
USB Slave
NMEA 2000
* Supports wire sizes from 16-26 AWG
** Supports wire sizes from 12-24 AWG
*** Caution - Incorrect connections may damage the monitor
A B
AC NEUTRAL
AC HOT
Battery 1
Battery 2
Bilge
Tank
OR
NMEA
2000
To loads From Supply
Shunt
C
M5
USB
2 Bilges or
2 Tanks or
1 Bilge &
1 Tank
12345678
1212
Fuse
(5 Amp)
Fuse
(0.5 Amp)
Fuse
(5 Amp)

5
DC Connections
DC Current
TheM2VSMMetersrequiretheuseofashunt.ShuntsmustbeconnectedbetweenthenegativeterminalonBattery1andthemainnegativebus.Allloads
andchargesourcesshouldhavetheirnegativeterminalsonthemainnegativebus,withtheexceptionoftheM2negativesourcewhichmustbeconnected
directlytothebatterysideoftheshunt.ShuntsensewiresmustbeatwistedpairfromtheshunttotheM2MeterforpropercalculationofState-of-Charge
(SoC).Twistedpairwirecanbepurchasedfromelectricalsupplycompaniesormadebytwistingbyhandorwithanelectricdrillmotor.Thecurrent(Amper-
age)readingforBattery1shouldbenegativewhenitisnotbeingchargedandDCpowerisbeingused(loadsareactive).Ifnot,reversethetwistedpair
DC shunt sense leads.
ItispossibletoconnecttheDCshuntonthepositivesideofthecircuitwithaShuntShifter(8242),(forexampleontheoutputsideofanalternator)
howeverthemeasurementswillonlybeaccurateto+/-4%,asopposedto+/-1%onthenegativeside.
DC Voltage
DCpositive(+)voltagesupplywiresforM2Metersshouldbedirectlyconnectedtothepositivebatteryterminalwithadedicatedwirebeforeanyother
connections.ThiswillensurecorrectvoltageandSoCmonitoring.Useanappropriatein-linefuse(5Asuggested)onthepositivewire.Atwistedpairshould
beusedforV1.
AC Connections
AC Current
Inmostcases,theACCurrentTransformershouldbelocatedonthemainAClinewirebeforeanyotherdevices.Seehttp://bluesea.com/viewresource/86
formoreinformationonACCurrentTransformerlocation.
TheCurrentTransformerdoesnotindicatepolarity.Theleadsshouldbetwistedtoreducetheeffectsofinterferencefromotherelectricalcircuits.
AC Voltage
TheACsupplyHOT(Line,or“UngroundedConductor”)connectionshouldbeprotectedwithafast-actingfuseof0.25Ato0.5Atoprotectagainstshorts.
Bilge Sensor
Connect“switchon”leadofbilgepumptotheM2VSMunit.Thiswireshouldread+12/24Vwhenrunningand0Vwhenoff.
Tank Sender
TheM2VSMiscompatiblewiththreesenderprotocols.
Resistive2WireSenders:
• 10–180ΩVDO—TypicalofEurope
• 240–33ΩTeleex—NorthAmerica
Ultrasonic3WireSenders:
• BlueSeaSystemsPN1810andPN1811.
BlueSeaSystemsultrasonicsenderPN1810isusedforwater,waste,anddieselfueltanksupto32"(812mm)indepth.BlueSeaSystemsultrasonic
sender PN 1811 is used for gasoline tanks up to 24"(609mm)indepth.Whenconnectingthetanksendertogrounditisimportanttoconnectthemas
directlyaspossibletothemainnegativebustopreventhighloadssuchasbatterychargersfromaffectingthetankreadings.TheM2VSMwillnotproduce
accurate readings if a second gauge is connected to the same tank sender. Install a sender for each gauge if you wish to read a tank level from more than
onelocation.TheBlueSeaSystemsultrasonicsenderrequiresanexternalpowersource.Whenpowertothesenderislost,theM2VSMwillreadthetank
asfull,andmaytriggerthetank’shighlevelalarm.Foreachtankthesendermustbespecied,andtheshapeofthetanksetasrectangularor
auto-calibratedbeforeaccuratereadingsaredisplayed.
Resistive 2 Wire SenderBlue Sea Systems Ultrasonic Sender 1810, 1811
BLACK WIRE
12345678
USB
PIN 3 OR 4
OPTIONAL
SWITCH
SPDT
ON-OFF-ON
OPTIONAL SECOND TANK -
WORKS BEST IF BOTH
TANKS ARE THE SAME
SIZE AND SHAPE
8283
PINK WIRE
TANK 1
SENDER
OPTIONAL
TANK 2
SENDER
12345678
BLACK WIRE
PINK WIRE
PURPLE WIRE
PIN 3 OR 4
FUSE (5 AMP)
USB
TANK ONE EXAMPLE

Getting Started
Example Screens
WhenanM2Meterisinitiallypoweredup,itwilldisplaytheBlueSeaSystemsLogoandtheserialnumberofthemeter.
Afteracoupleofseconds,theunitwilldisplayahigh-levelSystemSummaryscreen.
Pressinganybuttonwilldisplayatemporarypop-upmenu.Selectanoptionbypressingthebuttonbeneathit.Thepop-upmenuwilldisappearafterthe
rstbuttonispressed.
6
The menu system is a two dimensional matrix. Pressing the UP or DOWN arrowbuttonswilltransitionthedisplaybetweentheSystem
Summary,screenwhichdisplayssummaryinformationforeachofthe“voltage”,“current”,or“sensor”channels.
Press the Nextbuttontodisplaymoredetailedinformationaboutaninputchannel,ortoshowasingleparametersuchas“voltage”inthedisplay
(seeexamplebelow).
This Screen OR This Screen
With AC Without AC

7
Main Screens
Summary Screen
ThemainsummaryscreendisplayshowsthestateoftheM2-VSMataglance.Ontheleftitdisplaysthevoltage,current,andstate-of-chargeforBattery
1,andthevoltageforBattery2.Thearrowtotheleftofthebatterydisplayindicatesifthatbatteryisbeingcharged or discharged .
IfACispresent,thedisplaywilldisplayvoltageandcurrentaswellasagraphicalrepresentationofthetanklevel,and/orthebilgeruntimeoverthelast
hour.Intheaboveexamples,thebilgeran15minutesoverthelasthour.
IfACisnotpresent,theACdisplayshutsoff.Dependingonthetanksetup,thetanklevelsarenowdisplayedinpercentorvolume.TheBilgehastwo
additionalelds.Thetopnumberisthetotalnumberofcyclesinthelast24-hours.Thebottomnumberdisplaysthenumberofcyclesoverthelastseven
daysdividedby7.Thisisthedailyaverage.Comparethiscountwiththe24-hourcounttoseeifthebilgeisrunningmoreorlessoften.
Forexample,inB2the24-hourcountis42,whiletheAvgis15.Thistellsyouthatthebilgeisrunningmoreoftenthannormal.
SOC Summary Screens
The1850providessummaryinformationaboutthestate-of-charge(SOC)ofthemainbattery(DC1).
• Time to Alarm-IfanSOCalarmisset,thisdisplaystheestimatedtimebeforethealarmgoesoff(exclusiveofdelays).Ifnoalarmisset,this
 istheestimatedtimeuntilthebatteryiscompletelyempty.
• Ah Remain-Estimatedremainingcapacityofthebattery.
• Ah Used -ThisistheactualAhremovedfromthebatterysincethelastfullchargeincludingalldischargeandchargecycles. 
Note that Ah Used and Ah Remainwilladduptobelessthanthecapacityofthebatterysincetheefciencyofremovingenergyfromabatteryvaries
depending on the rate of discharge.
• Wh Used-Watthoursused.
• SOC Cycles -Thenumberoftimesthatabatteryhasbeenchargedanddischarged.Adischargeto50%onlycountsas0.5cycles.
• Est. Capacity-Ifabatteryisdischargebelow80%andallowedtorest(current<0.1Afor3hours),theM2canestimatethecapacityofthe
 battery.Thisfeatureisstillexperimentalandworkswellforsomeinstallations.Forbestresults,setthetemperaturetotheactualbatterytemperature.
 Note:TheM2willnotautomaticallyupdatetheuser’scapacitysetting.
Bilge Display
Thebilgefunctiondisplaysthefollowinginformation:
1. Thetotalnumberofcyclesinthelast24hours.
2. The24-houraverageoverthelast7days.
3. Thetotalnumberofcyclessincethecyclecounterwasreset.
Shortcut Menu
PresstheMenubuttontobringupashortcutmenuforadditionalsummaryscreensaswellasaccesstotheSetupmenus.PresstheUP and DOWN
arrowbuttonstomovethecursorovertheoptionsandpresstheSelect buttontoseeaselecteddisplay.Toreturntothepreviousdisplay,pressthe
Backbutton.

8
Alarm Setup
The meter supports two types of alarms, local alarms that are only displayed on the meter and CZone alarms that are displayed on CZone displays and
canbeusedtocongureCZoneswitching.CZonealarmsareconguredintheCZonecongurationtoolwhilelocalalarmsareconguredonthemeter.
Themeter’salarmcanbesettotriggerundercertainconditionsofbatteryvoltage,current,state-of-charge,tanklevel,orbilgeactivity.Inaddition,each
alarmcanbeputonadelaytopreventfalsetriggers.AlarmscanbesetfromtheAlarmSetupmenu.Togetthere,rstnavigatetotheSetupmenu.Then
scrolltoAlarmSetupandpresstheSelectbutton.
Setting Alarms
TheM2Meterfamilyprovidesmonitoringcapabilityofinputchannels.ThemetercanmonitorVoltage,Current,Frequency,Tanks,andBilge.Alarmsare
triggeredifachannelisaboveorbelowacertainuserselectedthresholdvalue.ThefollowingexampleindicateshowtosetupanovervoltageAlarm.
1.GototheAlarmSetupmenu.
2.Scrolltothedesiredinputchannel(i.e,DC1VoltsHi).
3.Press the Selectbuttonandthecursorshouldstartblinking.
4.Set the voltage threshold using the and buttons.(Holdingdownthebuttonsallowsfasterselection.)
5.Press the EnterbuttontosavethechangeortheCancelbuttontocancelanychange.
NOTE:Alowvoltagethresholdcannotbesetaboveahighvoltagethreshold.Likewise,ahighvoltagethresholdcannotbesetbelowthelowvoltage
threshold. The meter will automatically increase or decrease the voltage thresholds to enforce this.
Intheaboveexample,analarmwillsoundanytimeDC1voltageisgreaterthanorequalto17V.
Conguration
Setup Menu
MetersettingscanbeconguredfromtheSetupmenu.ThismenucanbeaccessedbypressingtheMenubuttonandthenscrollingtoandselecting
Setup. Press the UP and DOWN arrowbuttonstomovethecursor.Thedifferentsetupoptionsaredescribedbelow.
NMEA Setup
CZone Conguration
TouseCZone,rstconguretheDIPSWITCHsettingtomatchthesettingthatwasdenedintheCZonecongurationtool.ThenturntheCZonemenu
to ON.Themeterwillrebootandpullthecongurationinformationfromthenetwork.NotethattheNMEAcablemustbeconnectedtoaliveCZone
networkwithpropercongurationdata.TheCZonecongurationlewillautomaticallypopulatemostcongurationdatafortheM2VSMincluding:
NMEA2000instances,batteryvoltage,batterytype,batterycapacity,fullchargevolts,fullchargeamps,andtank/bilgeconguration.
NMEA 2000 Conguration
Fornon-CZonesystems,theuserwillhavetoenterNMEA2000instanceinformationforDC1,DC2,AC1,andtheTanks(ifused).
TheusershouldconguretheinstanceinformationbeforeconnectingtotheN2Knetworktopreventconicts.

9
Silent Alarm
Thisturnsoffthealarmbuzzer.Alarmswillonlyshowonthemainscreen.
Voltage Alarm
Voltagealarmscanbesettodetecthigh(Hi)orlow(Lo)voltageconditions.
Current Alarm
Thecurrentalarmcanbesettodetectovercurrentconditions.
State-of-Charge (SoC) Alarm
TheState-of-ChargealarmcanbesettodetectlowState-of-Chargeconditions.
Tank Alarm
Alarmscanbesettodetecttanklevels.
Bilge Alarm
Bilgealarmscanbesettodetectiftherun-timeexceedsacertainvalueinat60-minuteperiod(BilgeTimeHi)orifthenumberofcyclesina24-hour
period exceedsathreshold(BilgeCycleHi).
Alarm Delay
Analarmdelaycanbespeciedsothatalarmsdon’timmediatelytrigger.Thiscanbeusefulwhenmonitoringastartingbattery,sothatthealarmdoesn’t
trigger every time an engine is started.
Theholdofftimeroperatesasacount-up/count-downtimer.Whentheinputexceedsthealarmvalue,thetimerwillstartcountingupuntilitreachesthe
delaytime.Whenitreachesthedelaytimer,analarmwillsound.Ifthealarmconditiongoesawaybeforethedelaytimerhasbeenmet,thetimerwill
countdownuntilthetimeriszeroagain.Forexample;iftheAlarmDelayissetfor5minutesandanalarmconditionisactivefor4minutestheninactive
for1minute,ifthealarmconditionisactiveagain,thealarmwillsoundin2minutes(5minutes-4minutes+1minute).Notethatthereisonlyonedelay
per channel.
Clearing Alarms
Whenanalarmoccurs,thebuzzerwillsound,theredALARM LED will light. The screen will display which alarm was triggered, the alarm set point and
thecurrentvalue.Pressinganybuttonsilencesthebuzzerandanotherbuttonpressreturnstothepreviousdisplay.
Untilthecauseofthealarmisresolved,theALARM LED will remain ON and the channel that triggered the alarm
(Voltage,Current,State-of-Charge,orFrequency)willblink.
Viewing Alarms Status
Foranyactivealarm,theparameterwillashifitisdisplayed.Toviewacompletelistofactivealarms,pressMenu>Setup>Alarm Setup.Anyactive
alarmwillash.Youmayhavetoscrollthroughthemenutoseeallofthealarms.

10
Display Setup
ThemeterdisplaysettingscanbeaccessedfromtheDisplaySetupmenu.Fromthesetupscreen,scrolltoDisplaySetupandpresstheSelectbutton.
Thedifferentdisplaysettingsaredescribedbelow.Tochangeasetting,pressEnter and press the LEFT or RIGHT arrowbuttonstoviewthe
availablesettingoptions.PressEnter to save the setting. Press Cancel to cancel a change.
NoneofthesesettingsaremodiedbyCZone.
Brightness
Thissettingisforadjustingthebrightnessofthedisplay.Thevalueisapercentagewhere0%isdimmestand100%isbrightest.
Sleep Timer
Followingacertainperiodofinactivity,themeterwillenterasleepmodeandwillturnoffthedisplay.Anybuttonmaybepressedtoexitthesleepmode
and restore the display. The Sleep Timersetsthenumberofminutesfrom0to600beforeenteringsleepmode.Thisfeaturewillbedisabledbychang-
ing the setting to OFF.
Dim Timer
Inadditiontosleepmode,themetercanalsodimitsdisplayafteraperiodofinactivity.Thedurationofdelayinminutesfrom0to600canbeadjusted
withthissetting.ThisfeaturewillbedisabledbychangingthesettingtoOFF.BycontinuouslypressingtheLEFT buttonthemetercanbeplacedin
AUTOdimmode.Inthismodethemeterwillautomaticallydimaftertwominuteswhentheambientlightislow(nightmode).Whenthelightincreases,
themeterwillreverttoitsnormalbrightness.
Units
Select either Imprl(imperial)orMtrc(metric).Thesearetheunitsusedtospecifythebatterytemperatureanduidvolume.
Demo Mode
With Demo Mode ON,themeterdisplaysfactoryprogrammedvaluesfortheBatteryVoltages,Current,andState-of-Charge.Changingthesettingto
OFFreturnsthemetertodisplayactualmeasuredvalues.Thismodeistypicallyusedforcommercialorpromotionalpurposes.Note:Alarmsettingswill
still respond to the actual settings and not the Demo settings. To enter Demo Mode, press Menu>Setup>Display Setup>Demo Mode. Press the LEFT
or RIGHT arrowbuttonstotoggleDemoModeON or OFF.
Changing System Labels
TheM2allowstheusertochangethelabelsthataredisplayedaboveeachchannel.Eachchannelcanhaveamaximumof16characters
howeverinthesummaryscreensonlytherst5charactersofthebilgeandtankaredisplayed.IfCZoneiscongured,thenthelabelswillbe
overwrittenbyCZone.
Changing Label Names
Tochangethenameofabattery,followtheinstructionsbelow:
1.Navigatetothesetupmenuforthedesiredbattery(suchasDC1Setup).Menu->Setup->DC1 Setup
2.Inthebatterysetupmenu,movethecursortobatterynametobechanged(indicatedbythe >> symbol)
3. Press Select to enter the name editing mode.
4.UsetheLEFT and RIGHT arrowbuttonstomovethecursoroverthecharacters.
5. When the cursor is over a character, press Entertoeditthatcharacter.Thecursorwillstartblinking.
6.UsetheUP and DOWN arrowbuttonstoselectanewcharacterandpressOk to set that character.
7.Oncealldesiredcharactershavebeenchanged,presstheCancel buttontoexitthenameeditingmode.

11
DC1 Setup
Themeterprovidessetupsettingsforeachbattery.Toaccessthesesettings,rstgototheSetupmenu.Scrolltothedesiredbatterylabelfollowedby
Setup(suchasDC1Setup),thenpressSelect. NOTE:Somesettingsmaynotbeavailableforallbatteries.
Thebatterysetupsettingsaredescribedbelow.Tomakeachange,scrolltosettingandpressEnter. Press the LEFT or RIGHT arrowbuttonsto
viewtheavailablesettingoptions.PressEnter to save the setting. Press Cancel to cancel a change.
Enable
Todisplaythebatteryanditsmeasurements,changethissettingtoON.IfenableisOFF,thebatteryalongwithitsmeasuredvalueswillnotbedisplayed.
However,anyassociatedalarmsettingsarestillactive.Tode-activatethealarm,disablethemintheAlarmSetupmenu.
Set State-of-Charge (SoC) to FULL
Whenthisoptionisselected,themeterwillconsiderthebattery’spresentState-of-ChargetobeFULL. To do this, scroll to Ok and press Select.
The screen will then return to the meter summary display.
Battery Voltage
Thissettingindicatesthenominalvoltageofthebattery.Theoptionsare12V,24V,36V,&48V.ThisisautomaticallysetbyCZone.
Bat. Type
Thissettingindicatesthebatterytype.Theavailableoptionsarelistedbelow:
•FLStd-StandardFloodedLeadAcidBatteries
•AGM-StandardAbsorbedGlassMat(AGM)Batteries
•TPPL-ThinPlatePureLeadAGMBatteries
•GEL-GelBatteries
•FLRsv-FloodedAcidReserve.PremiumFloodedLeadAcidBatteriessuchasRolls.
•FLLoM-FloodedLowMaintenance.SealedFloodedLeadAcidBatteries
•FFFL-FireyAGMBatteries
Bat. Capacity
Thissettingindicatesthecapacityofthebatteryinamp-hours.Theavailablerangeis0Ato5000A.ThisisautomaticallysetbyCZone.
Full Chrg Volts
Thissettingindicatesthevoltageatwhichthebatteryisconsideredtobefullycharged.Theavailablerangeis0.1Vto70.0V.Thisshouldbesettothe
absorptionvoltageofyourcharger.Ifyoudon’tknowtheabsorptionvoltage,youcanguretheabsorptionvoltageoutbyobservingtheoutputvoltage
ofthechargeronceitenterstheabsorptionphase.Ifyouhavemultiplechargingsources,setittothehigherabsorptionvoltage.Inextremelyhotorcold
temperaturestheabsorptionvoltagewillneedtobesetslightlyhigher(forcold)orslightlylower(forhot).ThisisautomaticallysetbyCZone.
Example 1.InBlueSeasSystems’P12ChargerthisparameteriscalledtheAbsorb Voltage. For lead acid values, the default value is 14.5 V DC. So in
the M2 the Full Chrg Voltssettingwouldbesetslightlysmallerthanthe14.5V(14.4V).
Example 2.Anunknown10Achargerisconnectedtoapartiallydischargedbattery.Initiallythemetershouldreadapproximately10Aofchargingcurrent
withthevoltageincreasingovertime.Atsomepoint(around14.5-14.8VDC)thevoltageshouldstabilizeandthechargingcurrentwillstartdecreasing.
This voltage is the Full Charge Voltage. Set the Full Chrg Volts to0.1Vbelowtheobservedvoltage.

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Full Chrg Amps
InadditiontoVoltage,theusercansettheChargingCurrentatwhichthebatteryisconsideredfullycharged.Thevalueisapercentagebetween0.0%
and10.0%ofthebattery’ssetAmp-hourcapacity.Thisvalueshouldbesetto0.2%higherthantheEndofAbsorptionAmps.Thatisthecurrentwhere
thebatterychargerswitchesfromAbsorbtoFloatstage.Valuesaretypically2%forAGMand3%forLeadAcid.Asabatteryages,thispercentagemay
needtobeincreased.ThisisautomaticallysetbyCZone.
Charge Eff.
Thissettingisforindicatingthebattery’spercentchargeefciency.Thevaluemaybesetbetween0%and100%.Theusercanadjustthecharge
efciencyupordowndependingontheageand/ortypeofbatterythattheyareusing.AGMBatteriestendtobemuchmoreefcientthanLeadAcid
Batteries.IftheM2meterindicates100%beforethechargerisdonewithitsbulkchargethentheefciencyislikelytoohigh.Trydecreasingitacouple
percent.IftheM2meterneverindicatesfullchargethenefciencyislikelytoolow.Tryincreasingitacouplepercent.Thisisautomatically
setbyCZone.
Thechargeefciencycanbecalculatedasfollows:
1. Set the Charge Eff.Valueto100%.
2. Dischargethebatterysomewherebetween25%to50%.
3. Check the SoC summary screen and note the Ah Usedvalue(itwillbeanegativenumber).Thisis Discharge Amps.
4. Chargethebatteryusinga3-stagecharger.
5. WhenthechargergoesfromAbsorptiontoBulk,thebatteryisconsideredfullycharged.
6. Check the SoC screen again and note the Ah Used(itwillbeapositivenumber).ThisisCharge Amps.
7. ThenewChargeEfciencyvalueiscalculatedbyDischarge Amps/Charge Amps.
8. Set the Charge Eff.valuetothevalueabove
Forexample,ifwehada100Ahbattery,wewouldremove50AhatroughlyC/20(5Ampsfor10hours).Wewouldthenchargethebatteryandwhenwe
transitiontooat,wemightsee4Ah Used.Sothechargeefciencywouldbe50/(50+4)or92.5%efciency.
Temperature
Specifythelowesttemperaturethatthebatterieswillbeexposedto.Astemperaturedrops,theeffectivecapacityofbatteriesalsodrops.
TheM2calculatesthebatterycapacitybasedonthisworstcasetemperature.Thisnumbercouldbeadjustedseasonallytoprovidebetteraccuracy
SoC Volt. Sync
ThissettingallowtheM2toestimatethecurrentState-of-Chargeafterthebatteryhasrestedforaperiodoftime.Incertainsituationswheresmall
chargesareaffectingthevoltagereading(somesolarinstallationswoulddothis),thesynchronizationwillestimatetheSOCincorrectly.Inthatcase,turn
this feature off.
Shunt Value
TheM2isshippedwithasingle500A/50mVshunt(theratiois10000:1).Theshuntvalueassumesthatthefullscaleshuntoutputvoltageis50mV.To
useashuntwithasmalleroutputvoltageusethefollowingformula:ShuntValue=(NewShuntRatio)/20.Forexampletousea400A/20mVshunt
(Note:20mV=0.02V),youwouldsetShuntValueto(400A/0.02)/20=1000A.
Zero Shunt
Menu->Setup->DC1 Setup->Zero Shunt.Tozeroouttheshunt,connectbothofthecurrentsensewirestothenegativebusbarsideoftheshunt.
Then press the ResetbuttonontheM2Metertoconrmtheaction.
State-of-Charge (SoC) Cycles
Menu->Setup->DC1 Setup->SoC Cycles.TheSoCCyclesoptionallowstheusertoresetthebattery’srecordedSoCcyclesto0.Todothis,scrollto
and press Select onSoCCycles.Textwillappearaskingtoconrmorcanceltheresetrequest.PressYestoconrmorNo to cancel the action.
State-of-Charge (SoC) Default Settings
Toresetthebattery’sState-of-Chargesettingstothedefaultvalues,pressSelectonSoCDefaults.Textwillthenappearaskingtoconrmorcancelthe
resetrequest.PressYestoconrmor Notocancel.Thefollowingchangeswilloccurafterareset:
1.SoCCycleswillberesetto0
2.SoCisResetto98%

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DC2 Setup
Enable
Turnthechannelonoroff.IfEnableissettoOFFthenthechannelwillnotbedisplayedinthemainmenus.Thealarmfunctionsforthatchannelwill
notbedisabled.Todisablethealarmforachannel,setthealarmforeachchannelto OFF.
AC1 Setup
Enable
To display the channel and its measurements, change this setting to ON.IfenableisOFF,thechannelalongwithitsmeasuredvalueswillnotbe
displayed.However,anyassociatedalarmsettingsarestillactive.Tode-activatethealarm,disablethemintheAlarmSetupmenu.
Toggle A/V
SwitchtheCurrentandVoltagedisplayonthechannel’sSummaryScreen.IfthisoptionissettoOFFthenVoltagewillbedisplayedinthecentereld.
If the option is set to ON Currentwillbedisplayedinthecentereld.
Example:ToggleA/VSettoOFF
Full Scale Amps
TheM2isshippedwitha150AAC/50mAACcurrenttransformer(theratiois3000:1).Thefullscaleoutputisbasedontransformerswithamaximum
outputvalueof50mAAC.Adifferentvaluetransformercanbecalculatedwiththefollowingformula:FullScaleAmps=NewRatio/20.Forexampleto
replacethestandardtransformerwitha100A/20mAtransformer(Note:20mA=0.02A):(100A/0.02)/20=250A.
Tank / Bilge Setup
Themeterhastwoinputsthatcanbeconguredaseitherabilgeortank.Toaccessthesesettings,rstgototheSetupmenu.
Scrolltothedesiredinput.Thetanksetupsettingsaredescribedbelow.
To make a change, scroll to setting and press Enter. Press the LEFT or RIGHT buttonstoviewtheavailablesettingoptions.
Press Enter to save the setting. Press Cancel to cancel a change.
Select
Denewhatisconnectedtotheinput:Bilge, Tank, or Off.IfCZoneisenabled,thenCZonewillcongurethiseld.IfselectisOFF, the input along with
itsmeasuredvalueswillnotbedisplayed.However,anyassociatedalarmsettingsarestillactive.Tode-activatethealarm,disablethemintheAlarm
Setup menus.
Bilge Functions
Cycle Reset
Resetthebilgecyclecountertozero.
Tank Functions
Volume
Setthevolume.CZonewillautomaticallycongurethissetting.
Show Percent
If this value is ON, then tank values will displayed as a percentage. If the value is OFFthenitwillbedisplayedineithergallonsorliters.
Sensor Type
ThissettingpresetstheResistanceLoandResistanceHivaluesbasedonthetypeofsenderattachedtothemeter.TheCZonecongurationtoolwill
setthisautomatically.Theavailableoptionsarelistedbelow:
• USA–NorthAmericanStandardtypeofsenderbetweenwitharesistancebetween240and33ohms.
• Euro–EuropeanStandardtypeofsenderwitharesistancebetween10and180ohms
• 1810–BlueSeaSystemsUltrasonicTankSenderforDiesel,Water&Waste.
• 1811–BlueSeaSystemsUltrasonicTankSenderforGasolineOnly
• Cstm–IndicatestheResistanceLoorResistanceHivaluehasbeenmanuallychanged.

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Resistance Lo/Resistance Hi
Thetankmeteroperatesbyreadingtheresistanceofthetanksender.Theresistancevalue(inohms)canbeenteredhereforanemptytank
(ResistanceLo)andforafulltank(ResistanceHi).ChangingeitherofthesevalueswhentheSender Type is set to either 1810 or 1811 will give
unpredictableresultswhenanUltrasonicTankSenderisused.
Tank Depth (Only used with 1810 and 1811 Senders)
Thissettingindicatesthedepthofthetankininches.ThissettingisnotaffectedbyswitchingtheunitsinSetup->Display->Units.Alsonotethatthis
setting is only used for ultrasonic senders.
Tank Shape
• Rect – Standard Rectangular Tank
• Tri–TriangularShapedTank.GoodfortanksinBilges.
• Auto–Thissettingonlyshowsupafterthetankhasbeenautocalibrated.ChangingthisvaluebacktoRectorTriwilloverwritetheauto-calvalues.
• Cstm–ThissettingindicatesthattheUserhasmanuallychangedthetanksettings.
Custom Tank Shapes
TheM2TankMetercandenecustomtankshapes.ThiscanbedonetwowaysbyeitherusingtheAutoCalibratefeatureormanuallyenteringthetank
Parameters.ForCZonesystems,customshapesaredenedinthecongurationtool.
Manually Entering Custom Tank Shapes
TheM2TankMeterhasvesetuppointsthatcanhelpdeneoddsizedshapes.Eachofthesetpointsallowstheactualvolumeofthetanktobedened
forvarioussensorreadings.Forexample,settingtheSensor20%valueto10%,indicatesthatwhenthetanksensorreads20%thetankisreallyjust
10%full.Similarsetpointsareavailableat40%,60%,80%,and100%.
Ifatankcanbecompletelyemptied,thentocalculatethesetpointsdothefollowing:
1. Emptythetank.(Ifthetankcannotbecompletelyemptied,theestimationworksbestifthetankisemptiedwiththesensorreadingunder20%.)
2. SetthetanksshapetoRect.(Rectangular)
3. Set the tank to display percentage.
4. Addliquidtothetankuntilthemeterreads20%.
5. Recordtheactualnumberofgallonsaddedtothetank.
6. Keeponaddingliquidandrecordthenumberofgallonsaddedwhenthemeterreads40%,60%,80%and100%.
7. Press Setup->Tank X Setup and scroll down to Sensor 20%.
8. Enterthefollowingvalue:(TankCapacity–TotalGallonsAdded+GallonsAddedat20%)/(TankCapacity)
9. RepeatStep8for40%,60%,80%and100%.
Example: Triangle Tank
Auserhasatrianglefueltankthathasatank
capacityof50gallons.Thetankisn’tcompletelyempty
andthemeterreadingislessthan20%inRectangular
mode.Theuseraddsfueluntilthemeterreads20%.
Theamountoffueladdedwas1gallon,at40%hehas
added7gallons,at60%hehasadded17gallons,at
80%hehasadded31gallonsandat100%hehasadd-
ed 49 gallons. The total gallons added is 49 gallons.
TocalculatetheSensor20%valueweusethe
equationinstep8above:(50g–49g+1g)/50g=4%.
TocalculatetheSensor40%valueweusethe
equationinstep8above:(50g–49g+7g)/50g=16%.
Likewisewecancalculatetherestofthevalues
(60%&80%)asshowninthetable.
100%-Sensor80%
fullValue%-80%
100%-75%
90%-80%
Sensor 100%=Sensor 80%+20%*
=75%+20%*
=125%
Note:Itispossibletohavethetankfullbeforethesensorreads100%byinputtingavalueintotheSensor100%eldthatisgreaterthan100%.For
exampleifthesensorreadingforafulltankis90%andSensor80%iscalculatedtobe75%thenSensor100%canbecalculatedwiththefollowing:
Rectangular
Tank
Reading
100%
Gallons
Added
at X%
49 gallons
Sensor
X%
100%
Custom
Tank
Reading
50 gallons
80% 31 gallons 64% 32 gallons
60% 17 gallons 36% 18 gallons
40% 7 gallons 16% 8 gallons
20% 1 gallon 4% 2 gallons
0% 0 gallons -0 gallons

15
Using Auto-Calibrate
TheAuto-Calibratefunctionrequiresthetanktobelledataconstantrateandforthesensorreadingbeinitiallylessthan15%.Forgrey,waste,and
watertanksahosecanbeusedtoprovideaconstantow.Dieselandgastankscanbemoredifcultbecausefoamingmaycausetheusertoslowdown
llingoncethetankisalmostfull.Iffoamingisaproblemthenusethemanualmethoddescribedabove.
1. Select Setup->Tank(1-4)->Auto Calibrate->Ok
2. Ifthesensorreadsmorethan15%anerrormessagewillbedisplayedalongwiththesensorreading.Atthispointthetankcanbeemptiedor
 thebackbuttoncanbepressedtoexittheautocalibrateprocedure.
3. Ifthesensorislessthan15%thenanoptiontostartthecalibrationprocessisgiven.
4. Press the Startbuttonandstartllingthetankataconstantrate.
5. Thetimerwillstartcountingasthetanklls.Inadditionthesenderwillindicatethatthetankisgettinglled.Whenthetankreaches100%
the timer will automatically stop. Press the FinishbuttontoacceptthecalibrationvaluesortheCanceltoabandonthechanges.Ifthetankis
 fullbeforethesenderreaches100%thenpressFinish.
6. AftertheFinishbuttonispressedtheM2willpopulateSensor20%-Sensor100%withthepropercalibrationvalues.Scrolldowntoinspect
the values.
Version Info
TheVersionInfooptionintheSetupmenudisplaystheproductname,serialnumber,andsoftwareversion.Thisinformationwillbedisplayedonascreen
after scrolling to Version Info and pressing Select.PressinganybuttonwillreturntotheSetupmenu.
Factory Reset
TheFactoryResetoptionintheSetupmenuallowstheusertorestorethemeter’sfactorydefaultsettings.FirstscrolltoFactoryResetand
press Select.Textwillappearaskingtoconrmorcanceltheresetrequest.PressYes toconrmorNo to cancel the reset.

PGN’s Used with 1850
PGN Number Description Fields
127506 DC Detailed Status State-of-Charge(Timeremainingwillfollow)
127508 BatteryStatus BatteryVoltage,BatteryCurrent
127503 ACInputStatus Voltage, Current, Real Power
127504 ACOutputStatus Voltage, Current, Real Power
127505 FuidLevel Type,Level,Capacity
PGN Number Description
59392 ISOAcknowledgement
59904 ISORequest
160160 ISO Transport Protocol, Data Transfer
60416 ISO Transport Protocol, Connection Management
60928 ISOAddressClaim
65240 ISOCommandedAddress
126208 RequestGroupFunction
126993 Heartbeat
CZone Proprietary PGN’s
65280 PGN_ZONE_COMMAND_MESSAGE Circuits
65281 PGN_ZONE_FEEDBACK_MESSAGE FeedbackonCircuits
65284 PGN_CZONE_STATUS_MESSAGE Connectionanddeviceinfo(serial/rmware/..)
65288 PGN_ZONE_COMMAND_MESSAGE
65290 PGN_CONFIG_CLAIM Conglerequest
65291 PGN_DATA_BLOCK_FEEDBACK Congle
65293 PGN_SI_RAW_DATA_REQUEST_MESSAGE Not used for MV
65295 PGN_CZ_ALARM_MESSAGE AlarmPGN
65297 PGN_CZONE_ENGINEERING_MSG Congtoolcommunication
130816 PGN_DATA_BLOCK ForCong.Transfer
16

Software Upgrade
New Method
1. ThisupgrademethodonlyworkswithWindows7PCsandabove,andMACOSX10.8andabove.
2. Downloadthenewrmwarefromhttp://www.bluesea.com/m2rmware.
3. Extractthermware.binlefromziple.
4. Remove all connections from the meter.
5. PlugaUSBmicrocableintothebackofthemeter.
6. Whileholdingthe2ndbuttonfromtheleftconnecttheUSBcabletoaPCoraMAC
 b.OnaMAC...
7. Thecomputerwillcreateanewdriveonthecomputer.Note:IfthePCdoesn’trecognizetheM2-VSM,thentryusingadifferentcable.
 a.OnaPC,thenewdrivewillhavebelabeledasCRP_DISABLD(D:)where“D:”isthedriveletterandmaybeadifferentletter.
While holding the 2nd button from the left connect the USB cable to a PC or a MAC
17

18
9. Copythenewrmware.binletotheM2-VSMfolder.
10.UnplugtheUSBcablefromthecomputer.
11. Youcanplugtheusbcablebackintothecomputertoverifythenewrmware.TheM2-VSMshouldpower
up and you can navigate to Setup->Version Info to verify the new SW Revision.
4600 Ryzex Way
Bellingham,WA98226USA
p 360.738.8230
f 360.734.4195
[email protected]
bluesea.com
980033760 Rev. 001
8. Deletethermware.binlefromtheM2-VSMfolder.
 a.OnaPC,selectthelewithyourmouseandpressthedeletekey.
 b.OnaMac,selectthelewithyourmouseandmovetotrash.