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 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.
ASCII Commands to View Sensor and Temperature Filter Settings
Function
Command
Response
Explanation
Get Sensor Filter
GSFIL
A number between 0 and 100.
Number of seconds.
Get Temp Filter
GTFIL
A number between 0 and 100.
Number of seconds.
ASCII Commands to Set Sensor and Temperature Filter Settings
Function
Command
Explanation
Set Sensor Filter
SSFIL X
Where X is a number between 0 and 100. Units are in seconds.
Set Temp Filter
STFIL X
Where X is a number between 0 and 100. Units are in seconds.
All Set Commands will respond with “OK” if accepted and “ERROR” if not accepted
4 . 5 . 2 . 3
S E N S O R U N I T S
Select SENSOR UNITS from the Configuration pull-down menu to view or change units of measure.
Units shown in the sensor units window are active. To change units or to review options, scroll the selection list.
Click on the desired units of measure to place the new choice in the sensor units window. To accept the change, click OK.
To abort the change, click CANCEL.
For dissolved oxygen sensors, units of measure can be set to ppm or %. For special DO sensors, ppb units can also be selected.
Consult the factory for details.
Although temperature and sensor filter constants are independently controlled the best results
are generally achieved when both filters are set to the same constant.
