Overview; Mounting The Drain Water Sensor - Priva Compass Installation Manual

Overview

Overview of the Drain water sensor
A. Drain trough
B. Substrate slab
C. Tray
D. Dirt filter
E. Water level in the flow tube when drain water has drained away
F. Flow tube/trap
G. Temperature sensor (NTC 1 kΩ/25°C or thermistor 3 kΩ/25°C) and EC sensor (moulded-in)
H. Outflow cap with opening diam. 1.5 mm
J. Tipping ladle
K. Reed relay contact
L. Magnet (counterweight of tipping ladle)
M. Junction box

Mounting the Drain water sensor

If the Drain water sensor is used for a crop in the soil, the Drain water sensor is buried in
the soil.
The Drain water sensor must not stand in water, as this may cause corrosion. For that reason,
bear in mind the following:
• The drain water should be able to drain away into the ground. With loam and clay in
particular, this can be a problem.
If necessary, ensure that the drain water drains away correctly.
• The groundwater level should not be too high.
Also make sure that the Drain water sensor is well ventilated, so that dirt cannot accumulate.
If the Drain water sensor is placed in an enclosed space below ground level, its service life
is reduced considerably.
Installing Priva Compass - 00.014
Drain water sensor
97