Xylem IQ SensorNet ViSolid 700 IQ (SW) - Manual (Page 29)

ViSolid
®
700 IQ (SW) Measuring
4 - 1 ba76040e02 07/2013
4 Measuring
The ViSolid
®
700 IQ (SW) measures the light scattered and reflected
by the total suspended solids in the measuring medium. The level of
total suspended solids that corresponds to the amount of light
measured is displayed. As different suspended solids scatter and
reflect light in different ways, the display of a suspended solid contents
in mg/l must be referred to a standard. A factory calibration to SiO2 is
stored in the sensor.
4.1 Measuring operation
Note
Large temperature differences between the sensor and measuring
medium can falsify the measurement result. Thus, as a precaution
during commissioning, wait for 15 minutes before using the measured
value.
Note
The allowed temperature of the measuring medium is 0 ... 60 °C.
The ultrasound cleaning system automatically switches off if the
temperature of the measuring medium increases to more than 60 °C.
When the temperature drops below 60 °C, it switches itself on again.
Switching off at temperatures above 60 °C prevents any overheating,
for example if the minimum immersion depth of the sensor is not
maintained.
1 Immerse the sensor in the measuring medium.
2 Read the measured value on the terminal of the IQ S ENSOR
N ET system.