Measurements
A measurement is the process of collecting data from a sensor. MONITOR provides the
ability to setup multiple measurements, each with its unique setup. Each measurement
will occur periodically and provide one or more results, which are usually related to
weather conditions. Measurement results are always logged. The log can hold almost
250,000 unique readings.
Sensors
As a data logger, MONITOR’s primary function is to measure and log data from sensors.
All commonly used environmental sensors are supported.
Here is a list of some of the many sensors supported by MONITOR and available through
Sutron:
•
AT/RH
(Air Temperature and Relative Humidity) - using analog or SDI-12
sensors
•
Precipitation
– using a tipping bucket
•
Wind Speed / Wind Direction
- RM Young or Gill ultrasonic via frequency,
analog, and SDI-12 inputs (includes vector averaging)
•
Stage
- using SDI-12 Shaft Encoder, Radar Level Recorder, Stage Discharge
Recorder, analog submersible, Bubbler
•
Barometric Pressure
- using the SDI-12 Accubar
•
Solar Radiation
via Differential Analog Input
Inputs available
Each of these inputs is capable of having one sensor connected to it, except for SDI-12
which can connect to multiple sensors.
Analog inputs
•
Two 0-5 V single ended analog input
•
Three Differential Analog Inputs (for bridge type sensors)
•
One 4-20mA input
Digital inputs
•
One counter digital input (used for tipping bucket)
•
One frequency/period input (used for wind speed)
•
Two discrete digital inputs (read line state as 1 or 0)
SDI-12 input
•
SDI-12 V1.3 compliant supports multiple sensors all connected to the same
bus
9
