100.073 Tower - Rain and Precipitation Sensor

Description

The most economical solution

It is a Tower rain gauge that measures the amount of rain fallen using a tilting bucket with automatic emptying. It has a reed switch that opens every time the weight of the accumulated water tilts the spoon, which produces a pulse that can be recorded using a datalogger or pulse counter. It is made of UV- and frost-resistant plastic.

Patented automatic emptying system

A magnet keeps the spoon in a balanced position, so that emptying occurs through a rapid movement of the tip, which immediately returns to the initial position to collect a new portion of water.

Technical specifications

Sensor specifications

• Collection area: 50 cm2
• Resolution: 1mm
• Accuracy: ±5%

Electric specifications

• Output signal: reed switch

Mechanical specifications

• Material: high strength plastic
• Dimensions DIA./H: 116/137 mm [+/- 2mm]
• Weight: 230g

P.C.B.

The electronic printed circuit board with individually tested and high-quality reed switches protected against extreme weather conditions such as extreme frost or heat. This include corrosion from salt water due to the PCB is coated with weather‐resistant varnish.

The PCB comes in two versions:

Tower Rain Gauge: Item no. 100.073. Comes with: PCB No. 9601 NC: normally closed. Two male spade connecters and 1 reed switch connected in series with a 1K ohm 1/4W resistor and a TVS-diode in parallel.

Tower Rain Gauge: Item no. 100.074. Comes with: PCB No. 9602 One Screw Terminal with 4 connections: 1-2 NC: Normally closed 3-4 NO: Normally open. Two separated circuits. Each with one reed switch connected in series with a 1K Ohm 1/4W resistor and a TVS-diodes in parallel.