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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
supplied 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 – 1000 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 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
INSTRUCTION MANUAL CT 24
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