Cleaning And Maintenance - hillvert HT-IRI-02 Bedienungsanleitung

b) In order to define the desired soil humidity level, select the appropriate
switch on the control panel.
S – 25 % humidity level, low (1).
M – 45 % humidity level, medium (2).
L – 65 % humidity level, high (3).
OFF – off button (4).
In order to define the expected humidity level select an appropriate switch on
the control panel and press it.
The sensor has built-in LED control lamps.
The indicator light will turn on once one of the levels – S, M or L – is selected.
This confirms the selection of device settings. If the program is not changed
within
in the memory of the device and the LED indicator light will turn off.
The intensity tolerance of S, M and L levels is + 15%. If the actual humidity level
is greater, the sensor will sends a signal to the controller. The set soil irrigation
cycle will be skipped.
To start the device:
c) Insert detection probes into the soil, start the measurement.
d) The device has a built-in low power mode. If the battery voltage drops
below 2.4V, all control lamps will light up and go out simultaneously. In
this case, batteries need to be replaced.
e) The connection port has two electric circuits: open and closed. The open
circuit occurs when the humidity of the soil is higher than the value stored
in the device's memory. If the humidity level is lower than the declared
level, the circuit is closed.
CAUTION!

3.4. Cleaning and maintenance

a) Use only non-corrosive cleaning agents for cleaning the surfaces.
b) Do not spray the unit with a stream of water or immerse it in water.
c) Perform regular inspections of the unit checking technical fitness and any
damages.
d) Use a soft cloth for cleaning.
e) Do not leave the batteries in the device when it will not be used for a long time.
f) Do not use sharp and/or metal objects (e.g. a wire brush or metal spatula) for
cleaning, as these may damage the surface of the material from which the unit
is made.
1 minute,
Do no use 1.2 V batteries!
the settings will be saved