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GENERAL INFORMATION
1.
GENERAL INFORMATION
With the CT 24 it is possible to convert a low level voltage
output from a solar sensor to the standard level of 4 – 20
mA or (using the installed 500 Ohm resistor) to a 2 – 10
Volt signal.
The CT 24 amplifier is designed to use with Kipp & Zonen
solar sensors, to allow long cables between sensor and
data logger without external interference.
The large operation temperature range from - 30°C to +
70°C and the waterproof housing (IP 65) makes that the
CT 24 can be used under the same conditions as all solar
sensors.
The amplification can be adjusted from the standard 0 –
20 mV is 4 – 20 mA to a value that takes the calibration
factor of the sensor into account, like 0 – 1600 W/m² is 4
– 20 mA.
Even negative inputs are allowed through a positive shift
of the zero point from +4 to + 8 mA. This allows for
negative input signals of about 250 W/m² like a
pyrgeometer and net radiometer produces.
The CT 24 is protected against reversed polarity, voltage
surges on input and output lines and is shielded against
EMF disturbance.
For pyranometers with temperature sensors there are
special connector strips in the CT 24 to connect these
sensors from in going to out-going cable.
7
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