Windy Nation 100 AMP DC Watt Meter - Manual (Page 5)

Watt Meter User Manual
Revision 1.0
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 F EATURES
• 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 S PECIFICATIONS
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 S AFETY P RECAUTIONS
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 consequences including explosions, causing
fire, damage to equipment, and personal injury.
3 INSTALLATION
3.1 C ONNECTING T HE M ETER
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 connections. It is suggested that any
Page 5 of 11 Windy Nation 04/19/2012