XLINK 500/100 Operations & Maintenance Manual page # 26
The key settings for a tipping bucket rain gauge are:
Measurement Type: Precip Accumulation or Precip Rate
Slope: 0.1mm, 0.2mm, 0.01inches or other value to match the calibration of the sensor.
Note: Measurement type: digital/counter1 or counter2 can also be used for tipping bucket rain
gauges. Be sure to select “debounce” for this measurement type as most tipping bucket rain
gauge switches are noisy and can produce multiple counts per tip if they are not de-bounced.
For more information, please see the section
The typical connection of the tipping bucket rain gauge is shown below.
4.8.
Connecting Pulse Sensors
Up to two sensors with pulse output are supported. The pulse output can come from a switch
that is momentarily closed (as in most flow meters and tipping buckets), or it can come from a
device that actively puts out pulses to represent the value to be measured. Pulses are measured
by the Digital inputs DIN#1 or DIN#2. Output can be counted at a rate up to 10,000 counts per
second (de-bounce off). If the signal provided by the device is not clean, de-bouncing should be
enabled. Otherwise, noise may be counted as signal. To ensure that the de-bouncing does not
interfere with the pulse counting, de-bouncing should only be enabled for signals occurring less
than 100 times per second.
