HyQuest Solutions
ML-IoT/C and /N Operation Manual © Copyright
Page -
16
Issue 1.2 28 Jun, 2021
3.6
SDI-12
SDI-12 Configure 6 x Sensors / Data Points
Each of the 6x SDI-12 data points are configured
and tested on these dialogs.
- Set the SDI-12 address,
- Set the specific command to be sent to the sensor,
- The data retrieved may consist of many data
points so specify which data point to use,
- Set the number of decimal places to use in the
final Adjusted result,
If you know how to calculate the Multiplier and
Offset then enter them directly – alternatively press
the “Calc Multiplier & Offset” button for guidance.
(See the screen shot below.)
- Set the Multiplier of the Raw data,
- Set the Offset,
- and press Save Settings, so the final
Adjusted Data = (Raw Data x Multiplier) + Offset
Click on “Measure Now” to perform an SDI-12
measurement of this data point. (If using the 12V
Boost Converter Option then you will need to set
the Warm Up Time below)
Repeat for each of the 6x data points.
SDI-12 Calculate Multiplier & Offset
This dialog will help you to set the specific
Multiplier and Offset for the selected SDI-12
sensor.
Make sure you have taken a recent Raw Data
measurement before proceeding with the following
steps :
1.
Select the required type of water
measurement, Ground Water or Surface
Water type – see the next page for the
option details.
2.
Enter the “New Reference” – that is, the
value you wish the Adjusted value to be.
3.
Press “Calculate” and the Multiplier and
Offset will be displayed along with the
new Adjusted value. Note that these values
are not saved yet !!!
4.
If the new adjusted value is what you
require, then press the “Save Multiplier &
Offset” button – the values will be saved
and you will return to the previous screen.
