Turnigy Mega Meter Manuale utente

INSTRUCTIONMANUAL

Multimeter

7IN 1

TABLE

OFCONTENTS

TABLEOFCONTENTS|

!*#'*/V?'

Introduction 03

Features 04

SetContents 04

BatteryChecker 06

BatteryInternalResistance 08

WattMeter 10

ServoTester 12

Tacheometer

RPM

Temperature 14

ThrustCalculator 15

ProductSpecifications 16

Warranty

And

Service 16

/!\N - Beforeyoustart

This

isa

sophisticatedunitwhichwill

bean

importanttool

your

electricpoweredmodelprogram.Please

carefulwith

it!And

please

readthisinstructionmanualthoroughlybeforeoperating.

not

disassemble,modify

subject

the

unit

forceimpact.

Keep

the

MegaMeterwellawayfromdirt

water.

Highpowerelectricalsystemsposedangersindependent

devices

the

MegaMeter

anditisthe

user'sresponsibility

tobe

familiarwith

thesedangers

and

take

any

necessaryaction

ensuresafe

use.

Shorting

rechargeablebattery

ora

MegaMeterconnected

toa

rechargeablebattery

batterycharger

can

supplyhugecurrents

and

haveseriousconsequencesincludingexplosions,causingfire,damage

toequipment

and

personalinjury.

There

are

risksassociatedwith

the

potentiallyhighcurrentsmeasured

the

MegaMeter.Theseinclude,

butarenot

limited

to,

fire,burns

andpersonalinjury.

The

usermust

familiarwith

the

relevantmeth-

ods,

procedures

and

connectioncomponentsbeforeusing

making

anyconnection.

not

exceed

maximum

of60

volts

forthe

mainpowerpack

(MPP)

Keepproperdistancefrompropellerduringmeasurementprocess.

INTRODUCTION

Thank

youforthe

purchase

thisTurnigyMegaMeter.

The

Turnigy

MegaMeter

can

carry

outan

enormousrange

functionsrelated

ElectricPoweredmodels

andhas

beendesignedwithease

ofuseas

aprimeobjective.ThisInstructionManualdescribes

the

scope

MegaMeter

andhowto

make

work

foryou.

Input

Voltage

'Port LCDDisplay

DotMatrix128*64

Connector

Temperature

SensorProbe

Mode

Connector

Servo

PotentiometerDial

toControlServos,

ESC,

other

devices

Output

.Optical

Tachometer

Sensor

Enter

FEATURES

BatteryChecker

BatteryInternalResistance

3.WattMeter

ServoTester

5.OpticalTachometer

6.TemperatureGauge

7.ThrustCalculator

SET

CONTENTS

InputCable

BatteryInternalResistanceCable

3.MegaMeter

TemperatureProbe

OutputCable

FEATURES

TheMainscreendisplays

allthe

availablefunctions.

The

desired

function

canbe

accessed

highlighting

the

desiredfunction

pressing'MODE'button,pressing

the

'ENTER'button

select

thatfunction.

INT

RESI

STftNC

WATTH

E T E R

SERUOTESTER

TACHOMETER

RPM

TEMPERATURE

THRUSTCfiLC.

. .

SET

BATTER

V CHE

KER

iraiiRiHimi

HiiTTMETE

SERUOTESTER

TACHOMETER

RPM

TEMPERATURE

THRUSTCALC...

SET

BATTERYCHECKER

INT.RESISTANCE

HATTMETER

SERUOTESTER

TACHOMETER

RPM

TEMPERATURE

THRUSTCALC.

. .

BATTERYCHECKER

INT.RESISTANCE

HATTMETER

SERUOTESTER

TACHOMETER

RPM

TEMPERATURE

napm

SET

BATTERYCHECKER

INT

RESISTAN

C E

SERUOTESTER

TACHOMETER

RPM

TEMPERATURE

THRUSTCALC...

SET

U P

BATTER

CHECKER

INT.RESISTANCE

HATTMETER

SERUOTESTER

C H

METER

Hdiijjiiaiiisia

THRUSTCALC...

SET

U P

BATTERYCHECKER

INT.RESISTANCE

HATTMETER

TACHOMETER

RPM

TEMPERATURE

THRUSTCALC...

SET

BATTERYCHECKER

INT.RESISTANCE

HATTMETER

SERUOTESTER

naaaaflamaaa

TEMPERATURE

THRUSTCALC...

SET

BATTERY

CHECKER

BATTERY

CHECKER

TheMegaMeterallowsyoutochecktheindividualcellvoltagesofa 2

cells-8cellsLithiumbattery.TheMegaMeterindividuallymeasures&

diagnosesthecellvoltagesofthemultiplecells,theresultisdisplayed

onthelargeliquidcrystalscreen.TheMegaMeterreplacesallofthe

tediousmeasurementandcalculationsrequiredinthepasttodetermine

theoverallvoltageoftheLiPo,LiFe& Lilonpackandtheindividualcell

voltagesthatdeterminethebalanceoftheLithiumpack.

TheMegaMeternowmakesitpossibletodetermineandverifythe

detailedstateoftheLithiumbattery.

Abalancedbatteryprovidesa saferenvironmentwhenflying.Ifyou

knowthatyourcellbalanceisoutyoucanaddresstheissue.

Thepreventionofdeterioratingcellsovertime,willimprovethe

efficiencyandstabilityoftheLithiumbattery.

WhenyouconnectthebalanceleadtotheMegaMeteryoumust

ensurethatboththeGroundpin'sforthebalanceconnectorandthe

MegaMeter

gotogether.DifferentBalanceleadshavedifferentwiringconfigurations

andsomearecolored.

TheMegaMeterhas2.54mmpinintervals.Iftheconnectoronyou

batterydoesnotfitdonotforcetheconnector,obtaina suitablead-

aptorleadfromyourhobbyshop.

Battery

Connection

Diagram

BATTERY

CHECKER

•Connectthebalanceleadto'VOLTPORT'

•Press'ENTER'toentermainfunctionscreen

•Press'ENTER'toselectBATTERYCHECKERfunction

•Press'MODE'toselectbatterytype

•Press'ENTER'toconfirmbatterytype

Battery

Type

Number

Cells

Serial

Pack

Voltage

)

Remaining

Amount%

Balance

Status

LiPo -8

5 23 . 15 9 U

•i:i3 .

SH -i 25 3 .8 H 7!

'353.

2 H53 .8 5 91

S5 3 .

0-7

7 65 3 .8781

175 8 8:>(.

69K E1

69K

Individual

Cell

Voltage

S31

yL ;;<;!

Balance

Gauge

The

Highest

Cell

Voltage

Lowest

Cell

Voltage!

Cell

Voltage

Differential

Serial

voltage

Packvoltageofthewholebattery(totalvoltageofallcells)isindicated

The

number of

serial

cells

Thetotalnumberofcellsinthebatterypackisindicated(6Sasindicatec

inthepicture6 serialcells).Thisisthesameasthecellquantity.

Remaining

amount fuel

gauge

Theremainingamountgaugegivesyoua graphicalbargraphdisplay

ofthestatusofthebatterybygraphandthebalanceofthecellsby

graph.

Whenthebatteryisfullychargedthegraphextendsto"F"on

theright handsideoftheLCD.Asintheexampleyoucanseethatthe

batteryisabout50%used.Therearetimeswhendifferencesoccur

betweentheremainingamountandtheactualremainingamount.

Thesedifferencescanbeassociatedwiththequalityanduseofthe

batteryanditscells.A batterythathasalwaysbeenchargedwitha

reputablebalancerislikelytoreproduceaccuratereadingsonthe

MegaMeter.A batterythathashada hardlifefulldischargeandre-

chargewithnobalancechargingismorelikelytohavediscrepancies

betweenactualandshownresults.

Cell

balance

gauge

TheCellbalancegaugemeasuresthedifferencebetweenallcellsthat

areconnectedtotheMegaMeter.

BATTERY

INTERNALRESISTANCE

BATTERY

INTERNALRESISTANCE

Thedifference

showngraphicallybetween

the

cellthat

showing

thehighestcellvoltage

tothe

cellthat

showing

the

lowestcellvoltage

(largestcellvoltagedifference)indicated

onthe

graph.When

the

cell

voltagesreadequal,

thebar

extends

allthewaytothe

right

(O).

This

indicatesthat

the

cells

areall

balanced

toa

satisfactorylevel.When

thecellshave

difference

voltage

thebar

shortens

and

indicates

towards

the

left

(X).In

order

maintainlonglastingbatterylife

ifthe

balancegaugedoes

not

show

satisfactorycellbalancethen

cell

balancershould

applied

tothe

packbefore

use.Ifthe

cellbalance

indication

islow

after

the

battery

has

beenusedthis

canbe

normal

and

chargingshouldoccurwith

balancecharger.

BATTERY

INTERNALRESISTANCE

TheMegaMeter

has

beencreated

give

youthe

ability

make

aninformeddetermination

what

the

truecell

and

packratings

byproviding

usefulmeasure,

the

cellinternalresistance.

•Connectbattery

MegaMeter

via

VoltagePort

power

onthe

•MegaMeterUsingsuppliedcable(pitch2.54mm)

measure

indi-

vidualinternalresistance

•PressMODE'

select

'INT.

RESISTANCE'function

•Press'ENTER'

confirmselection

ConnectionDiagram

for

Measurement

Battery

InternalResistance

Once

have

idea

ofthe

internalresistance

ofa

cell

wecan

then

usethat

determine

how

efficient

our

powersetup

isas

well

knowing

how

muchpower

beingturned

heat

inthe

batterypack

andadditionallyknow

how

much

the

voltage

can

potentiallydropunder

load.

BATTERYCHECKER

•mSHECBl

Int

.Resistance

WATTMETER

SERUOTESTER

Res:33noh

TACHOMETER

RPM

TEMPERATURE

THRUSTCALC...

SET

Let

itbe

statedthatthere

isno

perfecttest

for

cellinternalresistance.

Due

tothe

nature

batteries,cellsexhibitcharacteristics

resistance

capacitance

and

inductance

which

all

contribute

tothe

measured

internalresistance.Internalresistance

can

varyconsiderablyeven

within

the

same

cell,

thismakes

the

task

determining

the

internal

resistance

a lot

harder.

Factorseffectingresistancereadings:

Contact

corrosion

While

not

actuallypart

ofthe

cellitself,havingdirtycontacts

tothe

cells

canmake

noticeabledifference

inthe

resistance.Wipingclean

the

contacts

can

improvecontactresistance

by10or

moremilliohms.

Cell

temperature

Formanycellchemistries

the

resistance

ofthe

packdecreasesinitially

fromroomtemperature

toa

certainlevel(perhaps

45C)

afterwhich

the

resistance

ofthe

packwillincreaseagain.Lithiumcells

particular

sufferpoorcellresistancenear

OC.

Cell

charge

Generally

the

closer

toa

fullcharge

cell

isthe

lower

the

internal

resistance.

Cell

age

Ascellsbecomeoldertheirinternalresistancetends

increase.

TheMegaMeter

has

beenbuilt

allowcells

tobe

testedunder

known

setof

loadswhichwillfacilitatecomparisons.

09-

WATT

METER

WATT

METER

PRECAUTIONS

Donot

leave

cellconnected

tothe

MegaMeter

for

morethanfive

minutes.

awarethatalthough

the

MegaMeteronlytakessmallsamples

from

thebatterypack,

the

voltagewill

reduced.Makesure

you

check

yourpackbalance.

3.Avoidplugging

the

cell

reversepolarity.

The

MegaMeter

can

copewith

areversedconnection

fora

few

seconds

butit's

stillbetter

not

todo

the

firstplace.

WATT

METER

ThisfunctionmeasuresCurrent(Amps),Peakcurrent,Voltage(Volts),

Power(Watts),Energy(Watt-Hours)

and

Charge(Amp-Hours)values

for

you,

real-time,

for

the

circuit

which

you

connect

it.

Speed

Motor

•1—

•

Controller

MegaMeter

activatedwhen

the

battery

connected

the

unit.

•Press'MODE'

select'WATTMETER'function

•Press'ENTER'

confirmselection

Now

youcan

stopwonderingwhat'sgoing

withyourelectricmodel

and

get

answersthatallow

you

applyscience

yourhobby.

The

precisemeasurements

you

collectwillhelp

you

finetuneyourmodel

get

allthe

performancethat

you

paid

for.

Withwattmeterfunction,

itis

now

easy

determinethingslike:

•Flighttime

•Currentthrough

ESCand

motor

•

ESC,BECand

motorefficiencies

•Charge

put

into

and

removedfrom

battery

and

the

performance

batterychargers

•Batteryhealth

•

Why

power

lostduringacrobatics

extremeconditions

•Effect

gearing

and

propellersize

and

shape

powerconsumption

andbatterycurrents

•Effects

modifications,

ageand

damage

manyelectricalsystem

components

•Cleverhobbyistswilldiscover

new

applications

furtherimprove

electricmodelperformance.

Thefollowing

are

someexamples

meterconnections.Manyother

arrangements

and

uses

are

possible

Testing

Loads

(e.g.

motors)

WATT

METER

Battery

Pack

CURRENT:^.

5.11ft

PEAK

'j.i.

52.

lift

DL.TftGE

25.13

N-ftTTflGE

882

K(H

)

Energy:

8 2 N h

Speed

Controller

Battery

Pack

CURRENT:^.

5.11ft

PEAK

'j.i.

52.

lift

DL.TftGE

25.13

N-ftTTflGE

882

K(H

)

Energy:

8 2 N h

Speed

Controller

Battery

Pack

CURRENT:^.

5.11ft

PEAK

'j.i.

52.

lift

DL.TftGE

25.13

N-ftTTflGE

882

K(H

)

Energy:

8 2 N h

Speed

Controller

CURRENT:^.

5.11ft

PEAK

'j.i.

52.

lift

DL.TftGE

25.13

N-ftTTflGE

882

K(H

)

Energy:

8 2 N h

Motor

Battery

SOURCEside,ElectronicSpeedController

(ESC)and

motor

LOADside,with

ESCon,

the

metershows

the

currentinto

the

motor,voltage

and

power

the

battery

and

accumulates

the

charge

(Ah)while

the

motor

running.

Battery Charging

Battery

Charger

HATT

METER

CURRENT:

3 5

1 1 A

Battery

Charger

PEAK

CO:

1 ifl

UOLTfiSE:

5'.

Battery

Charger

WATTftGE:

S S 2

.SIM

ftK<H>:

13@3.

2 H

Energy

32Hh

Charge.

2 Ah

Battery

WATTftGE:

S S 2

.SIM

ftK<H>:

13@3.

2 H

Energy

32Hh

Charge.

2 Ah

With

batterycharger

onthe

SOURCEside

and

batterypack

onthe

LOADside,

the

metershows

the

chargingcurrentinto

the

battery,

the

voltage

and

chargingpower

the

battery

and

accumulates

the

charge

(Ah)into

the

battery.

Battery Discharging

Battery

Pack

CURRENT

PEKKCc

y•

UQL

TftGE:

T T

Discharge

Load

When

the

battery

discharged,

the

meterindicates

the

totalcharge

(Ah)

the

batterydelivered

the

load

well

current,voltage

and

dischargingpower.

SERVOTESTER

TACHEOMETER

RPM

Receiver

Servo

Testing

Battery

Pack

U0 L T A G E

WATTAGE

PEftKCH)

Reciver

Servo1

Servon.

SERVOTESTER

Servotesters

are

veryuseful

for

exercisingyourservos

and

Electronic

SpeedControl

(ESC)

without

the

need

turn

yourtransmitter,

and

you

donot

evenneedyourreceiver.

The

servotesterwill

putouta

signaljustlike

the

signalsnormallysent

yourreceiver

tothe

servos

ESC.The

dialknob

onthe

servotesterwillchange

the

signaljust

likemovingyourtransmitterstickwouldchange

the

signalgoing

toa

servo

orESC.

Tousethetestertoevaluatea servo

Connecting

battery

tothe

i-Meter

voltport.Plug

servointo

the

servoport.

The

servo

canbe

controlledwith

the

adjustmentdialunder

ManualMode.Press'MODE'buttononce

tosetthePPM

signal

auto.

Theservotesterwill

use

1520us

centre

and

automaticallyoutput

cyclingsignal

move

the

servo

arm

back

and

forward.

TousetheServoTestertooperateanESCandmotor

Connecting

battery

tothe

MegaMetervoltport.Anotherplugconnec-

ted

tothe

ServoTester

isthe

plugfrom

theESC

thatnormallygoes

thereceiver.Connect

theESCto

motorleads.When

you

connect

the

battery

totheESCit

willpower

up.It

shouldreact

the

same

way

doeswhenpowered

using

the

radiogearwith

the

throttlestick

theminimumpowerposition.

Youcannow

spin

upthe

motor

turning

theservotesterknob.

receiver

transmitter

needed.This

isa

great

wayto

testmotors

onthe

bench.

TACHEOMETER

RPM

There

isan

opticaltachometerwithinMegaMeter.

opticaltacho

sensor

fitted

tothe

rightsideMegaMetercase

andis

activated

pointingMegaMetertowards

the

propeller

ata

distance

of10and

20cm

from

the

propeller.

•Connectbattery

MegaMeter

via

VoltagePort

power

onthe

•MegaMeterPress'MODE'

select"TACHOMETER

RPM"

•Press'ENTER'

confirm

the

function

•Press'MODE'again

change

the

range

of1-5

blades

•Press'ENTER'

start

RPM

measurement

Thefluctuatinglightcaused

bythe

rotation

ofthe

propeller

sensed

andcountedover

period

either

1 or2

seconds.Allow

couple

seconds

for

readings

steady.

With

gearedmotor,

the

motor

RPM

willnormally

higherthan

the

prop.

RPM,butitisthe

prop

rpm

which

beingmeasured

and

quoted,

the

gearratio

isnot

reallyrelevant.

TEMPERATURE

PleaseDON'T

use

opticaltachometerwithfluorescentlightingwhich

willgivefalsereadings,such

3000

3600

rpm.

Theoptical

RPM

sensorwillfunctionover

largerange

propeller

sizes,

RPMand

lightingconditions.

Ithas

evenable

measure40mm

diametermodelboatpropsspinning

intheair.

Experimentwithdifferent

sensorpositions.

somecases,bestresults

maybe

achieved

testing

inthe

shade.With

the

motorrunning,move

the

opticalsensor

toabout

10-20cm

from

the

propellers,taking

alldue

care.Small

propellers

may

requirecloserpositioning.

The

number

propeller

bladesshouldalso

beset.

Wrongsettingwillaffect

RPM

readings

for

theopticaltachometer.

For

example,fitting

threebladedpropellers,

butleaving

the

i-Meter

bladefigure

at2

wouldcause

the

optical

tachometer

read

50%

high.

TEMPERATURE

There

isa

temperaturesensoravailable,

soyoucan

monitor

the

temperature

battery,motor,electronicspeedcontroller,

etc.

When

nosensor

connected,displaywillindicate0.0°C

and

32°F

•Connecttemperatureprobe

MegaMeter

•Press'MODE'

select"TEMPERATURE"

•Press"ENTER"

confirmselection

Current

Temperature

Celsius

TEMPERATURE

Current

Temperature

Fahrenheit

Peak

122F

PeakValue

Celsius

PeakValue

Fahrenheit

THRUSTCALCULATOR

RUST

CALCULATOR

Thethrustcalculator

can

estimate

the

thrust

ofan

airplane,there

are

manyvariances

and

someknownfactors.

Letsassume

have

airplane

and

this

isits

firstflight.

know

the

size

ofthe

propeller

andwecandoa

staticfullthrottle

rpm

checkwith

tachometer

onthe

ground.

Wecannowadd

theseknownfiguresinto

ThrustCalculator.

Bythe

factthat

youcan

verifythrust

becomes

possible,

estimate

the

generalpower

ofthe

airplane

advance.

Thiswillgive

you

moreknowledgeaboutyourplane

andthe

power

characteristics

makeyourfirstflightlesschallenging

and

safe,after

all

youmay

haveotherflightcharacteristics

deal

with.

Thisshould

help

youto

estimateflighttake

off

distances,recoveryfrom

stall.

For

moreexperiencedpilotsthiswillenablethem

calculate

ifthe

plane

going

tobe

able

hover.

Itcan

show

you

whatchanges

tothe

power

calculationwill

affected

bya

differentsizepropeller.

Propeller

Length(inch);

THRUSTCALC

^propeller's

Effectiveness;

[Coefficient

Propeller

Revolution

RPM

(Revolutions

Per

Minute)

oneter

Blades:

RPM

Thrust:

10.00

.00

110

0 0

Number

ofBlades

5 3

L b

CF(Propeller'sEffectivenessCoefficientTable)

Manufacturer CF

Standardpropeller 1.00

APCpropeller 1.06

APC

1.50

APC

propeller 1.09

MenzSpropeller 1.03

Bambulapropeller 1.02

Bollyclubman 1.04

Cox 1.10

GWS

0.75

GWS

RS(SF)

1.10

Smart 1.02

ZingerWood 1.00

PRODUCTSPECIFICATIONS

Thestaticthrustcalculation

takenfrom

the

October

86AMA

magazine,

airdensity

based

29.92

inHg,and

propellerpitch

isnot

used

this

calculation.Practicaltestsrevealedverylittle

ifany

change

thrust

due

topitchvariation

atthe

same

RMP.

believedthatthis

partly

duetoany

increase

thrustbeingnegated

bybladestalling

anda

moreturbulentinfluxareawithincreasedpitch.

Thisobviouslyonlyapplies

staticconditions,

not

flyingconditions.

PRODUCTSPECIFICATIONS

•

Max

inputvoltage:

60V

•Voltagemeasurementrange:

2-8S

LiPo/LiFe/Lilon

•Voltagedisplayresolution:0.001V

•VoltPort:2.54mmpitchpins,

pins

•

Max

current:

100A

•Shuntresistance^.001

ohm

•Displayedresolution

A:0.01

•Temperatureresolution:

Celsius

Fahrenheit

•

PPM

signaloutput:750uS

2150uS

•Number

propellermeasurable

: 1 to5

•Propellerrotatingrange:1-60000RPM

•Dimension:95.3x72.8x21

5mm

•

Net

Weight:

85g

WARRANTY

ANDSERVICE

Weguaranteethisproduct

tobe

free

manufacturing

and

assembly

defects

fora

period

ofone

yearfrom

the

time

purchase.

The

warranty

onlyapplies

material

operationaldefects,which

are

present

atthe

time

purchase.Duringthatperiod,

willrepair

replacefree

servicecharge

for

productsdeemeddefective

dueto

thosecauses.

Youwill

required

produceproof

purchase(invoice

receipt).

Thiswarranty

isnot

valid

forany

damage

subsequentdamage

arising

asa

result

misuse,modification

orasa

result

failure

observe

the

proceduresoutlined

thismanual.

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