visiferm™ do sensors - Forbes Marshall

ATTENTION !
VISIFERM DO Operating Instructions
When using the sensor in the 4-20 mA mode, the 4-20 mA interface
must become configured again! See also, ‘Activation of the 4-20 mA
mode’.
3. If you should have selected a concentration (mg/L, ppm, ug/L or ppb)
as a measuring value, then you may input the salinity in mS/cm for
the correct calculation of the concentration of salty measuring media
such as waste water: Configuration measurement / Set salinity of
process water / Salinity: …. / Go.
7. Preparation for the measurement
1. Removal of possibly present protective caps from the VP head and
from the sensor cap.
2. Ensuring that the sensor was configured per software as desired. In
the case of doubt, definitely examine as described in the section
‘Electrical connection: RS-485 Modbus interface’! At this stage also
the state of the sensor and sensor cap can be checked in the
VisiConfigurator program area ‘Sensor Info’.
3. Installation of the sensor (thread: PG 13.5).
4. Attach the VISIFERM DO sensor according to chapter ‘Electrical
Connection‘ in the desired configuration. Note: Due to the integrated
optoelectronics the sensor has an intrinsic warming which stabilizes
itself within few minutes. If the sensor is not dipped into the liquid,
then it displays a mildly enhanced temperature.
5. If the sensor is operated in the ECS mode, then the used measuring
device must be calibrated (adjusted) according to the sensor. For this,
follow the instructions of the manufacturer of the measuring devices.
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