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The View menu turns on or off the toolbar and status bars. It’s best to leave these on.
9.2
Analog configuration.
After clicking
Analog
you can select all parameters of the analog inputs. Analog inputs, which should be logged, must be
checked in the Measure column.
Any UVS or CDS3 sensor needs to be attached to AIN3 or AIN4 because of their higher output voltage.
For the differential input AIN9 to AIN11 one needs to select Bipolar (BIP) and the input voltage range (19 – 2500mV). E.g. a
CMP pyranometer will produce max. around 20mV so the 38mV range would be the right selection. A SP Lite2 or equivalent
needs the 156mV setting for normal outdoor use.
Inputs AIN9 - AIN12 offer ratio measurements by checking RATIO box. It is designed for Pt-100
measurements, where AIN9 is connected to a high precision 100Ω reference resistor and AIN10 is
connected to the Pt-100 sensor. This way the user can measure temperature with the 4 wire method (for
highest precision). See section 9.5
When you select RATIO AIN10, the logger will make the following calculation:
Value = 100Ω * Uin10/Uin9 = resistance of the Pt-100
78mV would be the right voltage range for Pt-100 measurements.
