Daystar DS-1000
PV I-V Curve Tracer

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Product Overview

DAYSTAR DS-1000

The New Daystar DS-1000 I-V curve tracer is a portable self-contained unit for testing photovoltaic systems. It weighs 12 kg and is packaged in a non-metallic case 44 x 35 x 20 cm. The DS-1000 uses a capacitive load to vary the impedance connected to the output terminals of the PV array under test. The voltage and current are sampled as the capacitors in the Tracer are charged. True short-circuit current is measured by starting the sequence at a negative voltage. Unique switching of load capacitors allows a slower sweep rate which yields more accurate IV curves. 1000 data pairs of current and voltage are included in each IV curve. This data set is transferred to the control computer for display, analysis, and storage using the powerful Windows-based IVPC software. This data set is transferred to the control computer for display, analysis, and storage using the powerful Windows-based IVPC software. The displayed I-V curve includes values of:

• Open Circuit Voltage, Voc
• Short Circuit Current, Isc
• Peak Power
• Voltage at Peak Power, Vpk
• Current at Peak Power, Ipk
• Fill Factor

The DS-1000 has two thermocouple inputs, Type T is standard, and two analog voltage inputs that can be used for irradiance sensors. Values from attached sensors are saved as part of the I-V curve data record. USB and RS-232 se000rial connections are supported. The DS-1000 is packaged in a rugged non-metallic cases which increases safety. They can be operated continuously for more than ten hours before battery recharge.