Skyrc WM-010 User manual

INTRODUCTION
Thank you for purchasing the Watt Meter WM-010. We are confident you will find it
to be an indispensable tools you use to make your hobby more funs and enjoyable.
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Parameter Range or Value Resolution
Voltage 0-60V (*1) 0.01V
Current 0-100A peak (*2) 0.01A
Power 0-6000 W 0.1W
Dimensions 51.3X42.9X13.7mm
Net Weight 42g/1.48oz
Display 26.5x28.5mm LCD
INSTRUCTION MANUAL
WATT METER CAUTIONS: High power electrical systems pose dangers independent of devices like
the Watt Meter and it is the user's responsibility to be familiar with these dangers
and take any necessary action to ensure safe use. Shorting a rechargeable battery or
WM-010
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Measures energy (Wh), charge Ah power W current A and voltage (V)
Measures temperature in both Celsius & Fahrenheit (optional temperature probe is
necessary)
Auxiliary battery to power watt meter for measurement down to 0V
Accurate & precise 0.01 A current and 0.01V voltage resolutions
Rugged handles 50 A continuous and 100 A peak at 60V
Small & light with a tough plastic case
Precision Alu-Chrom current sensing resistor, with only 0.001 Ohms resistance
Factory calibration stores constants in EEPROM to compensate for component
tolerances
·,,Measures peak Amps, peak Watts voltage minimum (sag) peak temperature
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FEATURES
SPECIFICATIONS
Charge 0-65Ah 0.1mAh
Energy 0 - 6554 Wh 0.1KWh
Auxiliary Power 4.0V-60V
(*1) 0
(*2) 50 100
35 .
100 .
Vm w a p
Ac Ap a d sw a i f a a
atc aobt of
Ao t d o a t a w t
inimum ith uxiliary ower
ontinuous, eak, ssumes evice’ ires re n ree ir nd
ttached o onnections t r elow emperature f low
peration ime epends n mbient emperature nd iring emperature
You can calibrate all values to zero by pressing 'SW' button for more than 3 seconds.
a Watt Meter connected to a rechargeable battery or battery charger can supply
huge currents and have serious consequences including explosions causing fire
damage to equipment and personal injury
There are risks associated with the potentially high currents measured by the Watt
Meter These include but are not limited to fire burns and personal injury
The user must be familiar with the relevant methods procedures and connection
components before using or making any connection It is suggested that any
connectors and wires chosen for use be appropriately sized and rated for the
intended application and attached in the manner recommended by their respective
manufacturers Poor connections and reckless wire handling in electrical systems
may have serious consequences Intermittent and loose connections can cause
component damage
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Safe Operation Limitations
The Watt Meter is designed to be safe to use when operated within the parameter limits it
was designed for Typical applications are well within these limits but it is the users
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responsibility to be familiar with the Watts Up specifications and ensure the unit is
operated within its limits.
Safe Operating Limits (Do Not Exceed)
Parameter Operating Range Notes
Voltage 0V-60V
Current 0-100A intermittent
50A continuous
Assumes devices wires are
in free air and attached to
connections at or below
temperature of 25 C(77 F)
with adequate air flow. 100A
operation time depends on
ambient temperature and
wiring temperature.
Nominal
Operating
Conditions
0-50 C ambient air
temperature non condensing
,
humidity
Maximum temperature must
be reduced at maximum
current rating
CAUTION Exceeding these limits may permanently damage the Watt Meter and may:
cause personal injury and may cause fire.
LCD screen may turn dark black due to the heat generate by continue use of Watt
Meter. Please turn off loading and wait for few minutes. The LCD screen will turn
visible again
APPLICATION
Watt Meter measures current, voltage, peak current (Amps), peak power (Watts),
minimum voltage (Volts), power (Watts), energy (Watt-hours) charge (Amp-hours)
and temperature, peak temperature values for you, in real-time, for the circuit in
which you connect it
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Switch
Temp. Socket
Loading
Source
Auxiliary
Socket
LCD Screen
Temperature 1C/1F
SAFETY PRECAUTIONS
0 - 150 C/32 F-302 F

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Battery
Charger Battery
Battery
Pack
Discharge
Load
Battery on SOURCE side, Electronic Speed Controller (ESC) and motor on LOAD
side, with ESC on, the meter shows the current into the motor, voltage and power at the
battery and accumulates the charge (mAh) while the motor is running.
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
Battery
Pack
Speed
Controller Motor
Now you can stop wondering what s going on with your electric model and get
answers that allow you to apply science to your hobby The precise
measurements you collect will help you fine tune your model to get all the
performance that you paid for
With watt meter function it is now easy to determine things like
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Current through an ESC and motor
The temperature & peak temperatures of ESC, motor
Estimate battery s running time for car or airplane
ESC, BEC and motor efficiencies
Charge put into and discharge from a battery
Presence of peak currents that can damage components
Presence of voltage sags that cause components to operate out of specification
Why power is lost during acrobatics or extreme conditions
Effect of gearing and propeller size and shape on power consumption and
battery currents
Clever hobbyists will discover new applications to further improve electric model
performance.
SW
SW
SW
SW
Pressing button to show different parameter‘SW’
When the battery is discharged, the meter indicates the total charge (Ah) the battery
delivered to the load as well as current, voltage and discharging power.。
With a battery charger on the SOURCE side and battery pack on the LOAD side, the
meter shows the charging current into the battery, the voltage and charging power at the
battery and accumulate the charge (mAh) into the battery.
The following are some example Watt Meter connections. Many other arrangements
and uses are possible.
Testing Loads(e.g.motors)
Battery Charging
Battery Discharging
Temperature Measuring
Battery
Pack Speed
Controller Motor
Temperature probe
(optional part)
We guarantee this product to be free of manufacturing and assembly defects for a
period of one year from the time of purchase. The warranty only applies to material
or operational defects, which are present at t he time of purchase. During that
period, we will repair or replace free of service charge for products deemed
defective due to those causes.
You will be required to produce proof of purchase (invoice or receipt). This
warranty is not valid for any damage or subsequent damage arising as a result
of misuse, modification or as a result of failure to observe the procedures outlined
in this manual.
WARRANTY & SERVICE
MADE IN CHINA www.skyrc.com 2011.06
Ap=Peak Amps
Vm=Min Volts(Sag)
Wp=Peak Watt
Wh=Watt hours
Cp=Peak Temp.
(Celsius)
Fp=Peak Temp.
(Fahrenheit)
A=Ampere
V=Volt
W=Watt
mAh=Charge
C=Celsius
F=Fahrenheit