JUMO dTRANS CR 02, Operating Manual, Page: 53 / 120

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9 Calibrating a sensor with a standard signal
9.1 General information
9.1.1 Operating modes
The operating mode selection depends on which sensor (transmitter) is
connected.
Linear operating mode
For example sensor for free chlorine, redox, pressure, liquid level or humidity
pH operating mode
For example pH sensor
Conductivity operating mode
For example sensor for conductivity, concentration
Customer specs.
For sensors with non-linear characteristics.
Up to xx interpolation points can be defined in an instrument table.
This allows for an excellent approximation of a non-linear characteristic.
Chlorine, pH and temperature-compensated
Combination of chlorine sensor and pH sensor and temperature sensor.
The measured value for chlorine often depends to a great extent on the pH
value of the solution.
The chlorine measurement is compensated depending on the pH value in this
operating mode. The pH measurement is temperature-compensated
During calibration, relays and analog output signals adopt their configured
states!
Sensors with a standard signal output can only be connected to an "Analog
input (universal)" optional board!
The sensors connected to the instrument should be cleaned and the instru-
ment itself calibrated, at regular intervals (subject to the sample medium).
Every successfully completed calibration is documented in the calibration
logbook, see chapter 10 "Calibration logbook", page 73.