For I-V Tracing, Maximum Power Point Tracking, & Cyclic Voltammetry
The Measuring Range (up to ±12V, up to ±4A)

Specifications
Measurement Range(For details see page 4)

Voltage: ±12 V
Current: ±2A (±4 A Pulse)with 5½-digits resolution

Measuring Technique

Digital Source Meter Type

InputsFront: 4 probes for PV devise

A/D Converters

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

User Interface and datacollecting

Computer software is provided forcontrol of all the functions and data
logging. Measurement data can besaved as a text file (.csv or .txt) anddirectly plotted on ®Microsoft Excelgraph. (Windows based PC required)

Communication

BluetoothPower Requirement

100 VAC (50-60 Hz)
230 VAC (50-60 Hz)

Dimensions, Weight

260 mm(W) x 350 mm(D) x 133 mm(H) ,6 kg

Features of Solar Cell I-V Tracer
User selectable START, END and STEP voltages. Plots current andpower vs. voltage curves. Calculated results include Voc, Isc, Jsc,Pmax, Vmpp, I mpp, FF, Rs, RSH, ƞactiveA, and ƞgeoA. User can set thedesired 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 fixedvoltage. Programmed Continuous IV” function allow user to takeseries of IV curves on given time intervals.

Features Cyclic Voltammetry (CV)Allows user to get both three electrode and two electrode CV plots for given voltage range,
scan speed and number of cycles. This function mimics the analog triangle wave of voltage
without digital voltage steps.

Features of Maximum Power Point Tracking (MPPT) Function
Analyzer acts like the best load for the cell to extract maximum
power point (MPP) and keep tracking MPP continuously. Plots
Pmax ,Vmpp , Impp and Efficiency vs. time curves and also display
current/power vs. voltage plots.
Features of Potentiostat/Galvanostat Function
Plot the current vs. time under a given constant voltage orconstant current. User can directly measure the open circuit
voltage, and short circuit current of the cell.

SPD Laboratory, Inc.

2-35-1 Johoku, Hamamatsu, 432-8011, JAPAN
Tel: +81-53-474-7901 Fax: +81-53-401-7080
Email: inq@spd-lab.com
Web: http://www.spdlab.com/English/VK-PA-300.html

All the graphs and data can be saved
in a Microsoft Excel Workbook.

I-V curve fitting function automatically fit the I-V data with two diode model and calculate various parameter.

“Programmed Continuous IV” function allow user to take series of IV curves on given time intervals. User canalso determine the cell keeping condition during I-V measurements. Data can be save in a single Excel file orseparate files.

All the graphs and data can be saved
in a Microsoft Excel Workbook.

“Advanced IV Setup” allows user to change various settings such as “start” point holding time, “end” point
holding time, current vs. time plot for each data point, and/or at given fixed voltage in the middle of I-V
curve tracing.

“Advanced MPP tracking” function shows the power, current, voltage and efficiency curves from the starting
point of the MPP tracking so that user can see how it reach to maximum power point from different
starting points and directions. It is continuously plot the conversion efficiency vs. tme curve.

All the graphs and data can be saved
in a Microsoft Excel Workbook.

“Cyclic Voltammetry” allows user to get both threeelectrode and two electrode CV plots for given voltage
range, scan speed and number of cycles.

“Data Save Option” tab allow user to specify results
saving folder and file name prefix. User can save setting
parameter also.

“Analyzer Settings” tab allows user to change specificparameters of the PV power analyzer.

“POT/GAL” Tab allows user to set constant voltage orcurrent to the sample and measure and plot data. Also
Voc and Isc of solar cells can be measured with singleclick .

“Help” shows contact information and Software Version.

If needed user can recalibrate VK-PA-300 with astandard meter. (Please request password to access to calibrationmenu)

VK-PA-300 Detailed Electrical Specifications
Measuring Technique

Digital Source Meter with 4 probes connection to DUT.

Measuring Range

Voltage: ±12 V

Specifications of A/D Converters

Resolution: 24 Bit
Utilize on-chip digital calibration to eliminate offset and gain errors.
ADC integration time can be selected from 16 different values from 400 ms to 33.3
μs.

Built-in Voltage Reference Parameters

Output Voltage : 2.500 ± 0.001 V Output Voltage Drift : 3 ppm/°C (-40°C to +85°C)
Output Noise : 100 nV/Hz½Current: ±2 A Continuous 4 A (pulse)

Voltage measuring ranges and reading (24-bit ADC) resolution and voltage setting (16-bit DAC) resolutions
Range± 150 mV

± 300 mV

± 600 mV

±1V±2V±4V±8V± 1 2VReading
Resolution

9 nV

19 nV

37 nV

74 nV

149 nV298 nV

0.6 μV

1.2 μV

Setting
Resolution

9.5 μV

9.5 μV19.1 μV

19.1 μV

38.1 μV

76.3 μV

153 μV305 μV

Current measuring ranges and reading (24-bit ADC) resolution and current setting (16-bit DAC) resolutions
Current Measuring Range

Current Reading Resolution(24-bit ADC)

± 6 μA

0.8 pA

1 nA± 12 μA

2 pA

1 nA

± 25 μA

3.4 pA

1 nA± 50 μA

7 pA

1.7 nA± 100 μA

13 pA

3.5 nA± 200 μA

27 pA

7 nA

± 250 μA

37 pA

9 nA

± 500 μA

74 pA

19 nA

± 1 mA

148 pA

38 nA± 2 mA

295 pA

76 nA± 6 mA

887 pA

0.9 μA± 12 mA

1.8 nA

0.9 μA± 25 mA

3.5 nA

0.9 μA± 50 mA

7.1 nA

1.8 μA± 100 mA

14 nA

3.6 μA± 200 mA

28 nA

7.3 μA± 500 mA

75 nA

19.1 μA±1A

149 nA

38.1 μA±2A

298 nA76 μA±5A

0.6 μA

153 μA

SPD Laboratory, Inc.

Current Setting Resolution(16-bit DAC)

2-35-1 Johoku, Hamamatsu, 432-8011, JAPAN
Tel: +81-53-474-7901 Fax: +81-53-401-7080 Email: inq@spd-lab.com
Web: http://www.spdlab.com/English/VK-PA-300.html