Explanation of the criteria for classification and numbering of components     C53.1.02
   (JUN 00)
Explanation of the dates on the component's description



1.   Purpose and objectives

     To measure snow depth automatically.

2.   Description

     The gauge uses a laser method to measure snow depth and is equipped with a communication function (RS-232C) allowing it to be used in snow information networks in a wide variety of sites. In addition, a modem for use with telephone wires can be installed.

3.   Input

     Actual snow depth up to 5m.

4.   Output

     The snow depth with a resolution of 2cm as a digital signal (RS-232C) or an analog signal 0V-1V DC.

5.   Operational requirements and restrictions

     When selecting a location for measurements, select a place where the snow level will not be affected by the topography, one unsusceptible to snow drifts, and if possible, a level and open area.

6.   Form of presentation

     A catalogue and instrument specifications are available.

7.   Operational experience

     About 50 sets were installed in Japan in 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.


(First entered: 01 FEB 93

Last updated: 21 APR 00)