PV Power Analyzer VK-PA-1000 Specifications

Measurement Range

Voltage: 100 V
Current: 1 A
with 5½-digits resolution

Measuring Technique

Digital Source Meter

Inputs

Front:  4 probes for PV devise
Back: 4 wire connector for  reference cell (light intensity measurement)

A/D Converters

16 Bit (2 independent ADCs for V & I measurements)

User Interface and data collecting

Computer software is provided for control of all the functions and data logging. Measurement data can be saved as a text file and directly plotted  on ®Microsoft Excel graph.   (Windows based PC required)

Communication

Bluetooth

Power Requirement

100 – 240 VAC (50-60 Hz)

Main Functions

Solar Cell I-V curve Tracing

User selectable START, END and STEP voltages. Plots current and power vs. voltage curves. Calculated results include Voc, Isc, Jsc, Pmax, Vmpp, I mpp, FF, Rs, RSH, ƞactiveA, and ƞgeoA . User can set the desired scan speed, scan time, or holding time. Advanced I-V option allows initial, middle, and end point holding times. I vs. t transient plot for all data points and/or under a selected fixed voltage.

Maximum Power Point Tracking (MPPT)

Analyzer acts like the best load for the cell to extract maximum power and keep tracking MPP continuously. Plots Pmax ,Vmpp , Impp and Efficiency vs. time curves and also display current/power vs. voltage plots. In addition user can directly measure the open circuit voltage, short circuit current and plot the current vs. time under a given fixed output voltage.