DS-100C Operating Manual
page C17
to be used to update the IV curve tracer internal firmware and to load updated
calibration constants. In the event that an update is needed, the proper use of
this port will be described at that time. This port may also be used for advanced
features in future releases of DS-100C firmware or IVPC.
Irradiance Inputs
The model DS-100C has two irradiance inputs for measuring pyranometers.
These inputs measure DC voltages only. In order to use a reference cell, the cell
must have a shunt resistor attached to convert the cell current to a voltage. Refer
to the IVPC Manual and Appendix C “DS-Tracer Technical Specifications” for
details on the voltage range of the irradiance inputs.
These inputs are differential, but there is a 10 K resistor form the negative
(black) input and the internal circuit common. Therefore the pyranometer can be
either electrically referenced to the same common as the other inputs such as
the computer, or it can be electrically floating.
Thermocouple Inputs
The standard model DS-100C is configured with two Type “T” thermocouple
inputs for measuring PV array module temperatures. Refer to the IVPC manual
for details on making temperature measurements and Appendix C DS-100
USB Drivers for details.
Aux Analog Inputs
This auxiliary analog input connection is currently disabled. However,
implementation is expected n future releases of IVPC and DS-100C firmware.
Summary of Contents for DS-100c
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