YSI IQ SensorNet ViSolid Sensor 700 IQ - Manual (Page 29)

ViSolid
®
700 IQ (SW) Measuring
ba76040e04 05/2014 4 - 1
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
1 Immerse the sensor in the measuring medium.
2 Read the measured value on the terminal of the IQ S ENSOR
N ET system.
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.
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.