Campbell Scientific CS420 and CS425 PDCR 1830-8388 Pressure Transducer - Manual (Page 5)

CS420-L and CS425-L Pressure
Transducers
This manual describes using the CS420-L and CS425-L pressure transducers with
Campbell Scientific’s CR800, CR850, CR1000, CR3000, CR5000, CR10(X), CR23X,
CR510, CR500, and 21X dataloggers. Information provided in the manual includes
datalogger-to-sensor connection, datalogger programming, use of multiplexers in the
system, and maintenance requirements.
1. General Information
The CS420-L is Druck’s model PDCR 1830-8388; the CS425-L is model
PDCR 1230-8388. Druck PDCR 1230 and 1830 pressure transducers are used
for surface and ground water level measurement. The CS425-L sensor can be
ordered in pressure ranges between 5 and 900 psi and has an accuracy of
±0.25% of the Full Scale Range (FSR); the CS420-L can be ordered in
pressure ranges between 1 and 900 psi and has an accuracy of ±0.1% FSR.
Further information on sensor construction can be obtained from Druck’s 1230
or 1830 Pressure Transducer brochures.
2. Specifications
Overpressure
8x for 1 and 2.5 psig range
6x for 5 psig range
4x for 10 psig and above ranges
Excitation Voltage
10 Volts at 5 mA maximum
Output Voltage
25mV for 1 psig range
50mV for 2.5 and 5 psig ranges
100mV for ranges 10 psi and above
Output is ratiometric to supply
Combined non-linearity, hysteresis and repeatability
±0.1% of Full Scale, Best Fit Straight Line for CS420-L
±0.25% of Full Scale, Best Fit Straight Line for CS425-L
Operating Temperature Range
-20ºC to +60ºC
Compensated Temperature Range
-2ºC to +30ºC
Long Term Stability
Typically ±0.1 mV/annum
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