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Table 2 Specifications of measuring instruments

From: An experimental study on effect of dust on power loss in solar photovoltaic module

Instrument Rating and range Application
Multimeter (MASTECH, M3900) DC voltage: 200 mV/2/20/200/1000 V ± 0.5% DC current: 20 μA ± 2.0%, 200 μ/2 m/20 mA ± 0.8%, 200 m/2A ± 1.2%, 10A ± 2.0% Resistance: 200/2 k/20 k/200 k/2 MΩ ± 0.5%, 20 MΩ ± 1.0% PV module output voltage and current measurement
Solar irradiation meter (DT-1307) Resolution: 1 W/m2 Sampling time: approx. 0.25 s Range: 1999 W/m2 Accuracy: ± 5% Size (mm): 160 (L)* 63 (W)* 28(H) Weight: about 250 g Operating temperature: 40 °C Solar irradiation intensity measurement
Rheostat load Resistive loads with adjustable node Resistance: 50 Ω Current: 0.71 A (maximum) Power: 35.5 W Single-tube single-wire wound Restive load for voltage and current measurement