DS-100C Operating Manual
page C25
6.0 DS-100C Additional Capabilities
The DS-100C tracer has auxiliary capabilities. These include analog circuits for
reading external temperatures and irradiances.
Temperature & Irradiance Inputs
The DS-100C has two thermocouple temperature inputs and two dual, 5-way
binding posts for connecting pyranometers. You do not need to use these inputs
to take I-V curves. The temperature and irradiance inputs are enabled using the
AUTO feature of IVPC. When a curve is taken, the temperature and iradiance
inputs are sampled immediately before the DS-100C takes a curve. Refer to the
IVPC operating manual for details on using these inputs when taking I-V curves.
Temperature Connections
Two standard thermocouple connectors are available on the front of the DS-
100C. A standard DS-100C comes with Type- “T” thermocouple connectors. In
order to accurately acquire temperature data, only matching thermocouple types
can be used. The thermocouple inputs are electrically isolated from the PV
system, but not isolated from other analog circuits or the computer connections.
Therefore, it is necessary that the thermocouple be electrically insulated when
bonded to a surface.
Irradiance Connections
There are two dual, 5-way binding posts for
pyranometer inputs located on the front panel of the
DS-100C. These programmable inputs can
accommodate ± 5 V signals and accurately measure
millivolt signals. These inputs can be used for any
analog voltage measurement within the range of the
DS-100C. Refer to the
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