Reference Solar Cell and Meter


Reference Solar Cell and Meter
Reads calibrated sun irradiance and temperature
Easily integrated with I-V Test Station


The Reference Cell, which is an integral part of solar simulator calibration and solar cell I-V characterization, consists of a readout device and a 2 x 2 cm calibrated solar cell made of monocrystaline silicon. The cell is also equipped with a thermocouple assembled in accordance with IEC 60904-2. The Reference Cell comes with calibration data taken by NREL, on an accompanying certificate. It reads solar simulator irradiance in "sun" units; one sun is equal to 1000 W/m2 at 25 °C and Airmass 1.5 Global Reference. This tool's primary use is the testing of photovoltaic cells under standard conditions. The Readout Meter includes two BNC connectors for analog outputs for the sun irradiance and the temperature.

Specifications

General



Dimensions: 5.9 W x 3.8 H x 7.0 D inches (151x 95x178 mm)
Weight: 4 lb. (1.8 kg)
Operating Temperature: 10 ºC - 40 ºC
Operating Humidity: 0 – 90%RH Non-Condensing

Irradiance Readout

Range: 0 – 3.500 Sun
Accuracy: ±0.1% @ 1.0000 Sun @ 23 ºC
±0.2% +2 Counts @ 0.1000 – 1.9500 Sun (Low Display Range) @ 23ºC
±0.2% +2 Counts @ 1.900 – 3.500 Sun (High Display Range)@ 23 ºC
Resolution: 0.0001 Sun @ 0 – 1.9500 Sun (Low Display Range)
0.001 Sun @ 1.900 – 3.500 Sun (High Display Range)
Temperature Coefficient: ±150 ppm / ºC Max
Settling Time: <1 sec. for <0.25% (= 6ô)
Sampling Rate: 3 Readings / second
Autoranging: Switches to higher display range above 1.950 Sun, lower range below 1.900 Sun

Analog Outputs

Sun Irradiance: 1 volts/sun
Temperature: 10 mV / 1ºC

Temperature Readout

Range: 0 – 199.9 ºC
Accuracy: ±0.5 ºC Typical, ±1.0 ºC Max @ 24 – 26 ºC
±0.7 ºC Typical, ±1.2 ºC Max @ 10 – 40 ºC
Resolution: 0.01 ºC
Temperature Coefficient: ±0.02 ºC / ºC
Settling Time: <1 sec. for <0.25% (= 6ô)
Sampling rate: 3 Readings / second