Sutron Corporation X-Link Operations & Maintenance Manual, Rev 1.63 5/24/2016 pg. 78
Below are listed all the
Measurement Types
available.
7.1.4.2.
Precip Accumulation and Precip Rate
Connection: Tipping bucket type sensor connected to terminals #8 and #9
X-Link can be set up with a tipping bucket in order to measure rainfall.
Precipitation accumulation is used to tally the total amount of precipitation since
the station has powered up. Count must be set to zero by the user when the
station is installed. Counts persist between power-ups.
Precipitation rate, unlike precipitation accumulation, measures the precipitation
that has occurred since the last measurement. So, if the measurement interval is
15 minutes, this measurement will report the rainfall in the last 15 minutes only.
Multiple measurements can be set up with the same input. For example, if you
wanted to know the daily rainfall and the rainfall during the last hour, set up two
measurements: one a
Precip Rate
with an interval of one hour, and another as
Precip Rate
with an interval of one day.
Usually, a slope is applied to convert the counts from the tipping bucket into
inches of rain. For example, setting the
Slope
to 0.01 means that 100 counts
from the tipping bucket equal to one inch of rain.
Precip readings are debounced for 3ms.
7.1.4.3.
SDI-12
Connection: terminals #12 GND, #13 SDI-12 PWR and #14 SDI-12 Data
SDI-12 is a standardized three wire digital interface. Many manufacturers
provide SDI-12 sensors that measure different environmental effects. SDI-12
sensors provide digital data which improves their reliability and accuracy in
terms of logger sensor communications.
For more details on SDI-12, refer to the
More About SDI-12
section.
Setting up an SDI-12 sensor requires the use of these unique setup fields:
7.1.4.4.
SDI-12 Address
Multiple sensors can be connected to the same SDI-12 bus. However, each
sensor needs a unique address. The address is a single ASCII character. Most
sensors default with the address 0. If you are connecting several sensors,
connect them one at a time. As each sensor is connected, issue the 0Ax!
