Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide
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The filter setting can be changed by selecting the edit box and typing in the desired constant. To accept the change, click OK.
To abort the change, click CANCEL.
If the sensor filter is set to 5 seconds, it will take 5 seconds to reach 90% of the final value when the reading changes.
Measurements are averaged to reduce periodic variations.
The default filter setting is 1 second and the maximum filter is 100 seconds. Use zero seconds for a completely
unfiltered reading.
4 . 4 . 2 . 2
T E M P E R A T U R E F I L T E R
Select TEMPERATURE FILTER from the Configuration pull-down menu to view or change the temperature filter constant.
The filter setting can be changed by selecting the edit box and typing in the desired constant. To accept the change, click OK.
To abort the change, click CANCEL.
If the temperature filter is set to 5 seconds, it will take 5 seconds to reach 90% of the final value when the reading changes.
Measurements are averaged to reduce periodic variations.
The default filter setting is 1 second and the maximum filter is 100 seconds. Use zero seconds for a completely unfiltered
reading.
The toroidal sensor head has significant mass and although the temperature element is located as close to the process as
possible, temperature readings can take up to 40 minutes to reach steady state when exposed to extreme temperature changes.
This is important to note when calibrating the sensor.
Although temperature and sensor filter constants are independently controlled the best results are
generally achieved when both filters are set to the same constant.
