Output is a switch closure for each bucket tip. A multiplier in the datalogger program determines the units in which rainfall is reported. Rainfall is measured in millimeters. Barometric pressure is calculated from the measured output voltage using a simple equation. Pressure measurements are reduced to sea level.
Barometric pressure is reported in millibars.
The data logger is accessed with a portable computer. The data logger must be programmed before it will make any measurements. A program consists of a set of instructions entered into a program table. The interval at which the table is executed determines how frequently the sensors are measured. The UWL Meteorology Station data logger measures the sensors every minute.