Vaisala WAA151 Installation Manual download pdf (Page 71)

Chapter 3 __________________________________________________________ Selecting Location

VAISALA ________________________________________________________________________ 69

The following numbers refer to Figure 59 on page 68:

1 = Cable to MAWS

2 = Water level

3 = Sensor level

4 = Local reference

5 = Common level

Typically, the water level sensor is installed in a stilling well or inside

a pipe for protecting the sensor against debris and vandalism.

Placement of DCU7110

Place the sensor according to the Figure 60 below. The water level is

then calculated from the formula:

h1 = H - h2

where

H = Offset to common level

h2 = Measured distance

0202-007

Figure 60 DCU7110 Placement over Water

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Vaisala WAA151 Installation Manual Page 71