Conversion of the measured values:
Abslute value:
(Iout – 4 mA) * 1.25
( * 1 mg/l / 1 mA)
4 mA corresponds to 0 mg/l,
20 mA corresponds to 20 mg/l.
Relative value: (Iout – 4 mA) * 12.5
( * 1 %Sat / 1 mA)
4 mA corresponds to 0 %sat,
20 mA corresponds to 200 %sat
f an error occurs, a current of 24 mA is output, the type of error is
indicated by the LED:
Brightly red:
DO value too high,
sensor defective or incorrectly wired (short circuit)
Flashing red:
DO value too low, sensor defective or incorrectly wired
Flashing blue:
NTC error, short circuit or not connected
The small hole under the right cable gland must not be closed. It is
used for pressure equalization, since the electronics contains an air
pressure sensor. This is needed for accurate calibration and for
calculating the saturation value.
It must not be stung with a sharp object in the hole, since the
housing is then no longer waterproof.
4
Содержание OxyScan Transmitter waterproof
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