Watt Meter User Manual
Revision 1.0
WindyNation
100AMP DC WATT METER
MEA-DCMR-01
User’s Manual
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Table of Contents
Introduction .................................................................................................................................................. 3
1
1.1 Limited Warranty ................................................................................................................................. 3
1.2 Restrictions ......................................................................................................................................... 3
1.3 Warranty Claims & Return Procedures............................................................................................... 3
1.4 Disclaimer ........................................................................................................................................... 4
1.5 Limitation of Liability ........................................................................................................................... 4
2 Product Overview ........................................................................................................................................ 5
2.1 Features .............................................................................................................................................. 5
2.2 Specifications ...................................................................................................................................... 5
2.2.1 Electrical Measurement Ranges ..................................................................................................... 5
2.2.2 Physical Specifications ................................................................................................................... 5
2.3 Safety Precautions .............................................................................................................................. 5
3 Installation ................................................................................................................................................... 5
3.1 Connecting The Meter ........................................................................................................................ 5
3.1.1 Wiring .............................................................................................................................................. 6
3.1.2 Connectors ...................................................................................................................................... 6
3.2 Powering The Meter ........................................................................................................................... 6
3.2.1 Auxiliary Power .............................................................................................................................. . 7
3.2.2 Initial Verification ............................................................................................................................. 7
3.2.3 Problems ......................................................................................................................................... 7
4 Operation ..................................................................................................................................................... 7
4.1 Display Information ............................................................................................................................. 7
4.1.1 Start-Up Screen .............................................................................................................................. 7
4.1.2 Measurements ................................................................................................................................ 7
4.2 Resetting The Meter ........................................................................................................................... 8
5 Application ................................................................................................................................................... 8
5.1 Maximum Current Capacity ................................................................................................................ 8
5.2 Inductive Loads ................................................................................................................................... 9
5.3 Battery Characterization ..................................................................................................................... 9
5.3.1 Battery Charging ............................................................................................................................. 9
5.3.2 Battery Discharging ........................................................................................................................ 9
5.4 System Characterization ................................................................................................................... 10
6 Troubleshooting And Support .................................................................................................................... 10
6.1 Care .................................................................................................................................................. 10
6.2 Troubleshooting ................................................................................................................................ 11
6.3 Support ............................................................................................................................................. 11
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1 INTRODUCTION
Windy Nation Inc. (“Windy Nation”) is not assembling the wind unit, installing the blade system, or any other
product offered by Windy Nation. Windy Nation, and its directors, officers, and employees disclaim, and by
purchasing a Windy Nation wind-powered product you accept all liability and responsibility for damage to
property, injury, or death arising out of or related to the use or misuse of any product offered by Windy
Nation.
1.1 LIMITED WARRANTY
Windy Nation warrants that the 100Amp Watt Meter (the “Product”), will be free from manufacturing d efects
in materials and workmanship under normal authorized use consistent with product instructions for a period
of one (1) year from the date the original purchaser (“Customer”) receives the Product (the “Warranty
Period”). This warranty extends only to the original purchaser. The Customer’s sole and exclusive rem edy
and the entire liability of Windy Nation, its suppliers and affiliates for breach of the warranty is, at Windy
Nation’s option, either (i) to replace the Product (or defective component part(s)) with a new or reconditioned
Product (or component part(s)); (ii) to repair the reported problem; or (iii) to refund the purchase price of the
Product. Repaired or replaced products are warranted for the remainder of the original warranty period onl y.
No employee, agent, dealer or other person is authorized to give any warranties on behalf of Windy Nation
not expressly set forth in this limited warranty.
1.2 RESTRICTIONS
No warranty will apply if the Product (i) has been altered or modified except by Windy Nation; (ii) has not
been installed, operated, repaired, or maintained in accordance with instructions supplied by Windy Nation;
(iii) has been subjected to abnormal physical, thermal or electrical stress, misuse, negligence, or accident. If
Windy Nation determines that the problem with the Product is not due to a manufacturing defect in Windy
Nation’s workmanship or materials, or otherwise does not qualify for warranty repair, then the Customer will
be responsible for the costs of all necessary repairs and expenses incurred by Windy Nation.
1.3 WARRANTY CLAIMS & RETURN PROCEDURES
To be eligible for service under this warranty, the Customer must submit a service request within the
Warranty Period by contacting Windy Nation in writing or via telephone and obtaining a Retu rned Materials
Authorization (“RMA”) number. This RMA must be obtained before returning any product under this warranty.
Notification must include a description of the alleged defect, the manner in which the Product was used, the
serial number, and the original purchase date in addition to the name, address, and telephone number of the
Customer. Within five (5) business days of the date of notification, Windy Nation will provide the Customer
with an RMA number and the location to which the Customer must return the defective Product. Any Product
returned for warranty service shall be shipped at the expense and risk of the Customer. The Custome r mu st
return the entire Product kit (or, if authorized by Windy Nation, the defective component parts), within fifteen
(15) days after issuance of the RMA number. Windy Nation will be under no obligation to accept any returned
Product that does not have a valid RMA number. Customer’s failure to return the Product within fifteen (15)
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days of its receipt of an RMA number may result in cancellation of the RMA. All parts that Windy Nation
replaces shall become Windy Nation’s property on the date Windy Nation ships the repaired Product or part
back to the Customer. Windy Nation will use all reasonable efforts within thirty (30) days of receipt of the
defective Product to repair or replace such Product. If a warranty claim is invalid for any reason, the
Customer will be charged at Windy Nation’s then-current rates for services performed and will be charged for
all necessary repairs and expense incurred by Windy Nation. If Windy Nation determines that a warranty
claim is valid, it will ship the repaired or replaced Product to Customer at Windy Nation’s cost.
1.4 DISCLAIMER
EXCEPT FOR THE EXPRESS LIMITED WARRANTY SET FORTH IN THE PREVIOUS PARAGRAPH,
WINDY NATION DISCLAIMS ALL WARRANTIES, EXPRESS, IMPLIED AND STATUTORY INCLUDING,
WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE WITH RESPECT TO ANY PRODUCTS PROVIDED BY WINDY NATION. NO
ORAL OR WRITTEN INFORMATION OR ADVICE GIVEN BY WINDY NATION, ITS DEALERS,
DISTRIBUTORS, AGENTS OR EMPLOYEES SHALL IN ANY WAY INCREASE THE SCOPE OF THIS
WARRANTY. WINDY NATION DOES NOT WARRANT THAT THE QUALITY OR PERFORMANCE OF THE
PRODUCTS WILL MEET YOUR REQUIREMENTS OR THAT YOU WILL BE ABLE TO ACHIEVE ANY
PARTICULAR RESULTS FROM USE OR MODIFICATION OF THE PRODUCTS. Some jurisdictions do not
allow the limitation or exclusion of implied warranties or how long an implied warranty may last, so the above
limitations may not apply to you. In any such jurisdiction, the warranty shall be limited to the minimum
warranty and period required by law.
WINDY NATION EXPRESSLY DISCLAIMS ALL LIABILITY FOR BODILY INJURIES OR DEATH THAT MAY
OCCUR, DIRECTLY OR INDIRECTLY, BY USE OF THE PRODUCT BY ANY PERSON.
1.5 LIMITATION OF LIABILITY
UNDER NO CIRCUMSTANCES WILL WINDY NATION OR ITS AFFILIATES OR SUPPLIERS BE LIABLE
OR RESPONSIBLE FOR ANY LOSS OF USE, INTERRUPTION OF BUSINESS, LOST PROFITS, LOST
DATA, OR INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY KIND
REGARDLESS OF THE FORM OF ACTION, WHETHER IN CONTRACT, TORT (INCLUDING
NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF WINDY NATION OR ITS AFFILIATE OR
SUPPLIER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so these
limitations may not apply to you. Neither Windy Nation nor its affiliates or suppliers will be held liable or
responsible for any damage or loss to any items or products connected to, powered by or otherwise attached
to the Product. The total cumulative liability to Customer, from all causes of action and all theories of liability,
will be limited to and will not exceed the purchase price of the Product paid by Customer. This warranty gives
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the Customer specific legal rights and the Customer may also have other legal rights that vary from state to
state.
2 PRODUCT OVERVIEW
The Windy Nation Watt Meter measures current, voltage and time and from those measurements calculates
peak current (Amps), peak power (Watts), minimum voltage (Volts), power (Watts), energy (Watt-hours) and
charge (Amp-hours) values for you, in real-time, for the circuit in which you connect it.
2.1 FEATURES
• Measures energy (Wh), charge (Ah), power (W), current (A) and voltage (V)
• Connector to use an optional receiver battery for measurement down to 0 V
• Accurate & precise – 0.01 A current and 0.01 V voltage resolutions
• Measures peak Amps, peak Watts and voltage minimum (sag)
• Rugged – handles 50 A continuous and 100 A peak at 60 V
• 14 AWG, super fine stranded, high temperature, silicone rubber insulated wire
• Small & light with a tough plastic case
• Acts like a wire so doesn't affect performance. Precision current sensing resistor, with only 0.001
Ohms resistance and circuitry that draws only 7 mA
• Uses DSP to increase ADC resolution and differential measurement amplifiers to increase noise
immunity
• Factory calibration stores constants in EEPROM to compensate for component tolerances
• Powerful, 8 MIPS micro-controller
2.2 SPECIFICATIONS
2.2.1 Electrical Measurement Ranges
Parameter Range Resolution Notes
Voltage 0* - 60 V 0.01 V *0 V min. w/ auxiliary power. Else 4.0 V.
Current 0 - 100 A peak 0.01 A 50 A continuous
Power 0 - 6554 W 0.1 W
Charge 0 - 65 Ah 0.001 Ah
Energy 0 - 6554 Wh 0.1 Wh
2.2.2 Physical Specifications
Parameter Value
Measurement Update Period 400 mS
Data Queue Sequence time 2 seconds
In Circuit Resistance 0.001 Ohms
Operation Current 7 mA
Dimensions 2.8" L x 1.7" W x 0.83" D
Weight 2.3 oz.
Display Screen 16 character x 2 row LCD
Nominal Operating Conditions 0° -50° C ambient temperature, non condensing humidity
2.3 SAFETY PRECAUTIONS
CAUTION: High power electrical systems pose dangers and it is the user's responsibility to be familiar with
these dangers and take any necessary action to ensure safe use. Shorting a battery or connecting your Watt
Meter to a battery can supply huge currents and have serious consequence s including explosions, causing
fire, damage to equipment, and personal injury.
3 INSTALLATION
3.1 CONNECTING THE METER
There are risks associated with the potentially high currents measured by your 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 connectio ns. It is suggested that any
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connectors and wires chosen for use be appropriately sized and rated for the inte nded application and
attached in the manner recommended by their respective manufacturers.
CAUTION: Poor connections and or intermittent/loose connections can cause component damage.
3.1.1 Wiring
Always connect and disconnect power at the meter FIRST on whichever of the LOAD or SOURCE sides that
has the highest electrical inductance. Long wire runs, motors, generators, etc. can have considerable
inductance.
Only qualified individuals should assemble any high current connections. The Red SOURCE wire goes to
Positive (Plus +) battery or other device terminals and black to Negative (Minus -).
3.1.1.1 Standard Connection Diagram
3.1.1.2 3-Phase AC Wind Turbine Connection Diagram
DC OUT +
AC INAC INAC IN
Bridge Rectifer
DC OUT -
Source
Load
3.1.1.3 Auxiliary Power Connection
3.1.2 Connectors
The Watt Meter is supplied with un-terminated wires so you can use whatever connector you may prefer.
If you decide to attach connectors to the SOURCE and LOAD, it is strongly recommended that you only use
female connectors on batteries and other power sources to prevent connectors and bare metal contacts from
shorting together. For example, with female (socket) connectors on your battery you will want male (plug)
connectors on the meter SOURCE leads and female connectors on the meter LOAD leads.
The user is responsible for selecting connectors rated to handle the current and voltage expected in the
user’s application and to follow the instructions provided with the connectors to ensure best results.
3.2 POWERING THE METER
The Meter requires a power source providing a minimum of 4.0 VDC to operate. This can come from a power
source (battery or generator) on the LOAD or SOURCE side or from the auxiliary 3-pin SOURCE power input
connector.
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If an auxiliary power source of 4.0 VDC or more is used (e.g. small receiver battery pack), the meter
operates independently of power sources on the LOAD or SOURCE leads. This allows measurements down
to 0VDC.
CAUTION: The Red leads and the Black leads of the Watt Meter are connected to each other so either side
can be electrically "hot" when a battery or other power source is connected to one side.
3.2.1 Auxiliary Power
By connecting a power source of at least 4.0 VDC to the 3-pin connector on the SOURCE side, the Meter
can measure down to 0 V (e.g. standard 9V battery). The 3-pin connector’s socket will accept a Futaba J
type, JR or HiTec type servo plug connector. Pin 1 is Negative and pin 2 (middle pin) is Positive. Pin 1 is the
pin farthest from the meter’s SOURCE wires. Pin 3, is to reset accumulated readings. See Section 4.2 for
reset operation.
When using Auxiliary power, you may see small measurement values when the SOURCE and LOAD leads
are not connected or are shorted together (e.g. 0.01 Volts). It is normal for small “shorted lead” voltage
values to be displayed in this situation and this will NOT affect the accuracy of real measurements.
CAUTION: Never short leads for testing with a power source connected to either set of leads!
3.2.2 Initial Verification
• No exposed wires or bare connectors that can short circuit prior to conne cting a battery or
power source.
• Wire and connector insulation are not damaged with no bare spots that can short.
o Properly insulate any exposed areas with electrical tape or shrink tubing.
• LOAD wires are safely routed and any unused wires are capped with connectors.
3.2.3 Problems
When power is applied correctly, the meter display will show the "Startup Screen" and then begin
measurements. If the Startup Screen does not appear, immediately remove the power sources and refer to
the troubleshooting section of this manual.
4 OPERATION
4.1 DISPLAY INFORMATION
4.1.1 Start-Up Screen
When power is first applied to the meter SOURCE leads, a startup screen with the firmware revision number
is briefly displayed, prior to measurement beginning.
4.1.2 Measurements
The measurement screen is displayed after the startup screen. All data values are identified by their units
(e.g. Ah, Wh, Ap, Vm, Wp) and are updated every 400 mS.
Amps, Volts, and Watts values are continuously displayed while other all other measured values (Ah, Wh,
Ap, Vm, Wp) are presented sequentially, every 2 seconds, in the "Cycle" position of the display.
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4.1.2.1 Amps (A)
The Amps value displayed is the average current flowing through the meter’s black wire over the last screen
update interval.
The meter’s circuit operation draws a slight amount of current (~7 mA) from the SOURCE side. Being
hundreds of times less current than is drawn by typical loads, this slight additional current can be ignored
and the SOURCE’s current be considered equal to the LOAD’s current for most practical purposes. Amps
values are measured on the LOAD side. Currents over 50 Amps should be measured for reduced time due
to wire heating.
4.1.2.2 Volts (V)
The Volts value displayed is the average voltage over the last screen update interval. The Volts value is
measured on the SOURCE side.
4.1.2.3 Watts (W)
The value displayed is the average power delivered in Watts over the last screen update interval. Watt
values are measured on the LOAD side.
4.1.2.4 Cycle – Amp Hours (Ah)
The value displayed is the total charge in Amp-hours delivered to the LOAD since power was applied to the
meter. It is measured on the LOAD side. For accurate results, be careful not to interrupt the SOURCE
connection to the meter during a charge measurement.
4.1.2.5 Cycle – Watt Hours (Wh)
The value displayed is the total energy delivered to the LOAD in Watt-hours since power was applied to the
meter. It is measured on the LOAD side. For accurate results, be careful not to interrupt the SOURCE
connection to the meter during an energy measurement.
4.1.2.6 Cycle – Peak Amps (Ap)
The displayed Peak Amps value (Ap) is the maximum current drawn on the LOAD side, since the startup
screen ended.
4.1.2.7 Cycle – Minimum Volts (Vm)
The displayed Minimum Volts value (Vm) is the minimum voltage (or “sag”) measured on the SOURCE side,
since the startup screen ended.
4.1.2.8 Cycle – Peak Watts (Wp)
The displayed Peak Watts value (Wp) is the maximum power drawn on the LOAD side, since the startup
screen ended.
4.2 RESETTING THE METER
Resetting your meter will clear all accumulated readings including Ah, Wh, peak current, etc. Your meter can
be reset to zero in one of two ways:
1) Completely remove all voltage from the meter; Source's Red AND/OR Auxiliary Connector Pin 2
2) Briefly connect the Auxiliary Connector's pin 3 to zero Volts. E.g. pin 1 or the meter's black wire.
a) Note that the meter will be held in reset and not function if pin 3 is continuously connected.
Pin 1 is the pin farthest from the meter’s SOURCE wires and Pin 3 is nearest the SOURCE wires.
5 APPLICATION
You can think of the meter like a set of jumper wires. Connect it in the same way and you can measure what
the jumper wires are connected to. Like Jumper wires, the meter is essentially a direct conne c tion between
correspondingly colored SOURCE and LOAD wires, i.e. both the “SOURCE” and “LOAD” leads of the meter
are electrically “hot” when a battery is connected to either side.
5.1 MAXIMUM CURRENT CAPACITY
Current flowing through the watt meter’s wires generates heat due to the resistances of the wires and of the
precision internal current shunt used for current measurements. Though very low ( ~ 0.004 Ohms in 14 gage
wires and 0.001 Ohms in shunt), these resistances are finite and at high currents the heat generated
becomes noticeable. This is because heat is created with the "square" of the current.
I.E.: heating power (W) = current
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Doubling the current increases the heat produced four times, so at 75 Amps, approximately 28 Watts of heat
is produced – mostly in the Meter’s wires.
The high current handing capabilities will be maximized when the meter's SOURCE and LOAD wires are
kept short and cool. Cut the wires as short as is convenient for high current operation. A fan blowing over the
wires will help their cooling. At moderate currents there is little heating. Using a "three-wire" connection will
also lower heat generation.
5.2 INDUCTIVE LOADS
Loose connections and long wires on circuits switching high currents can damage electrical components.
The problems can be largely eliminated by ensuring that connections are secure/not intermittent (e.g. not just
twisted together) and to a lesser degree by keeping wire lengths short and by twisting wire pairs together to
reduce their inductance.
Wires exhibit a property called inductance. Inductance is an indication of the amount of energy stored in a
wire's magnetic field due to the flow of current.
If you interrupt the current flow, say with a switch or pulling apart a connector, the magnetic field collapses
and induces a voltage in the wire to try and oppose the drop in current. Depending on the specifics of the
wire, current and materials near the wire (like iron) the induced voltage can be quite high. In fact, it can give
you a mild shock and damage electrical components still connected to the wire by generating voltages that
exceed their ratings. This is one of the reasons capacitors and diodes are needed on brushed motors in
addition to reducing RF noise.
Always disconnect the meter from the highest inductance wiring first.
5.3 BATTERY CHARACTERIZATION
5.3.1 Battery Charging
You can monitor the current, accumulated charge and energy into and voltage on a charging battery.
Connect the meter as shown in Section 3.1.1. Be sure the battery is not connected before the source
generator is turned on, as the meter will track the minimum voltage on the battery during the ch arging
process. With the source on and the battery charging, the meter displays the ongoing charging electrical
values. The current (As) and power (W) show the average rate of charge and the voltage indicates the
current battery charging voltage.
CAUTION: When charging a battery, do not operate it outside its manufacturer's specifications. Do not allow
the battery voltage to exceed the maximum value specified or charge at a current that exceeds the maximum
specified.
5.3.2 Battery Discharging
When discharging a battery pack through the meter into a load you can monitor key battery parameters like
actual available charge and energy, peak and average current and battery voltage.
Connect the meter as follows:
The diversion load device you connect on the LOAD side must be capable of handling the discharge po wer
the battery pack can provide. Example loads include, light bulbs, power resistors, and devices spe cifically
designed to discharge a battery like some chargers in discharge mode.
If the battery pack voltage at the end of discharge will be less than the minimum 4.0 V the meter requires a
battery of at least 4.0 V to the 3-pin auxiliary power connection.
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After connecting the LOAD to the meter, connect the battery. Discharging begins when the battery is
connected.
When the battery is discharged, the meter display indicates the total charge (Ah) and energy (Wh) the
battery delivered to the load as well as the peak Amps (Ap) and peak Watts (Wp) used and the minimum
voltage on the battery during the discharging process.
5.3.2.1 Battery Efficiency
Battery Charging Efficiency (BCE) is the ratio of energy put in to energy removable.
Charging Efficiency = Discharge Energy ÷ Charge Energy.
Efficiency is never 100% due to a variety of losses involved. If the charge energy was 15 Wh and the
discharge energy is 14.2 Wh the Charging Efficiency is: 14.3 ÷ 15 = 0.95 or 95%
BCE depends on both the charger and the battery so it can be difficult to determine where problems are
without extra batteries or chargers.
5.3.2.2 Battery Health
Battery Health is determined by comparing the actual energy or charge capacity with the manufacturer's
specifications or a "new" battery as a reference. Since it can be difficult to get manufacturer specifications to
match test results, it is often simpler than and just as useful to record the capacity value of a "new" battery
and save that as a baseline. Note that a "new" battery may be defective and give out of specification results.
By occasionally discharging a battery pack and comparing the energy delivered to the baselin e value
delivered when it was first put into service, you can track that battery's health. The percentage of baseline
capacity at which a battery is considered to be at the end of its life depends on battery chemistry and how it
is used. A reduction in charge capacity can also be an indication of battery pack damage or imminent failure.
To summarize, the percentage of baseline or initial capacity indicates a battery's health.
Baseline Capacity Ratio = Current Capacity ÷ Original Capacity
5.4 SYSTEM CHARACTERIZATION
It can be very difficult to find out why a component fails. The Watt Meter’s ability to capture even brief
current/power peaks and voltage minimum values can help.
The Peak Amps, Peaks Watts and Voltage Minimum values will be the peaks and minimum captured
following the meter’s power on sequence. Be careful in adjusting test setups to not accidentally cause a peak
or voltage minimum that isn't the one you are watching for. This might happen if, for example, you connect
another component to the system while it is measuring.
The meter’s Peak Amps, Peaks Watts and Voltage Minimum values are cleared whenever the meter is
powered up, so remove all power sources when you need to clear them for a new measurement.
6 TROUBLESHOOTING AND SUPPORT
The Watt Meter is ruggedly constructed and requires minimal care. There are no adjustable or field
serviceable parts inside. The case is welded shut and cannot be opened without damag e. Opening the case
will void the warranty.
6.1 CARE
To clean your meter, moisten a cloth with a few drops of mild hand dishwashing detergent in a cup of
lukewarm water and gently wipe clean. Do not exert too much pressure on the display as this can
permanently damage it.
Store your meter in a safe place where it is protected from impact and scratches to the LCD display. Do not
store in direct sunlight. Prolonged exposure (years) to direct sunlight will break down the plastics.
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6.2 TROUBLESHOOTING
Problem Possible Remedies
1. Make sure the LOAD side wires are not shorted together or connected to
something that is shorting them.
2. Check you have a power source (battery or charger) supplying at least 4.0
V connected to the SOURCE side wires or to the Auxiliary Power Connector.
Don't see the Startup Screen
after applying power
Display screen characters are
dim
Display went blank
Only have volt readings – no
Amps, Power or other readings
Auxiliary power not working
Peak Amps, Peak Watts or
Minimum Voltage don't change
or seem wrong
Meter & wiring get warm
3. Check wiring Polarity. The Red wire should be connected to the positive
(Red, +, Positive, etc.) side of the power source and the Black wire to the
negative side.
4. Try a 9 Volt consumer electronics type alkaline battery as the source
power. If this works, your other power source is likely too low a voltage.
5. Make sure reset signal on pin 3 of Aux. connector is not connected to 0V.
Probably due to low voltage. Check you have a power source (battery or
charger) supplying at least 4.0 V connected to the SOURCE side wires or to
the Auxiliary Power Connector.
It is possible the LCD got too hot and stopped working. Disconnect both sides
of the meter for 15 minutes, allowing the LCD to cool, and then try
reconnecting.
1. Check the connections on the LOAD side are good and have correct wiring
polarity and that any switches or devices that must be turned on are on.
2. Test the meter is working with a known charged battery of sufficient
voltage connected to the SOURCE side wires and a simple, known good
load.
3. The Meter only measures currents flowing in the direction of SOURCE to
LOAD. Make sure that the setup is arranged correctly.
1. Check the 3-pin plug is inserted properly. Black (Negative, -) wire (pin 1)
should be farthest from where the meter's SOURCE wires enter the case.
Red (Positive, +) wire (pin 2) should be in the middle of connector.
2. Check the Auxiliary battery or power is supplying at least 4.0 V
1. Any time the Amps value is more than the Peak Amps value the Peak
Amps value will match it. The Peak Watts value is determined the same way.
Similarly, any time the Volts value is less than the Minimum Volts value the
Minimum Volts value will match it.
2. To reset Peak Amps/Watts and Minimum Voltage, remove power to the
meter.
It is normal for the meter and its wiring to get warm at high currents. You can
cool it with a small fan blowing on the wires.
6.3 SUPPORT
If you are experiencing technical problems, and cannot find a solution in this manual, you can contact Windy
Nation Inc. for further assistance.
• Call: (805) 323-6445
• Email: info@windynation.com
• Write: 1082 Front Street, Unit B, Ventura, CA 93001
For challenging issues or to just ask a question, consider using our FREE Community Forums! Consult our
community of DIYers for fast answers to all your questions.
Post on our Forums: http://www.windynation.com/community/
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