HOMS COMPONENT

RAINFALL LOGGER

1.   Purpose and objectives

     To acquire contact pulse signal data from a tipping bucket rainfall  gauge and to process them.

2.   Description

     This rainfall logger is used with a tipping bucket rain gauge. It  acquires data from the rain gauge and processes them using a microprocessor  unit. Intensity and accumulated amount of rainfall, and daily maximum  values are obtained graphically and numerically.      The roll chart needs to be changed every 3 months.

3.   Input

     Contact pulse signal of a tipping bucket rain gauge.

4.   Output

     Data stored on an IC card memory, printed listings and graphical and  text display on a liquid crystal panel. An alarm signal, either audible or  as a contact pulse, can be generated.

5.   Operational requirements and restrictions

     The logger requires a regulated power supply and the installation must  avoid vibration, high temperatures and humid conditions.

6.   Form of presentation

     A catalogue and instrument specifications are available.

7.   Operational experience

     About 120 sets were installed in Japan during 1999.

8.   Originator and technical support

     Yokogawa Denshikiki Co.,Ltd.

9.   Availability

     From the HOMS National Reference Centre for Japan.

10.  Conditions on use.

     Hardware is for sale.

Last updated: 21 APR 00)
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