PRONOVA Stelzner EC 2000, Technical Instructions

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37
GB
Button Description
Ein/Aus
Switches the device on or off,
when pressed longer switches to A0 mode. (The device will then not automati-
cally switch off 10 minutes after the last button was pressed.).
Mode Switching between measuring variables and pH measuring
AM Start AM measuring
CAL Start calibration (pH or conductivity measurement)
4. MULTI 2000
The type-IX advisory kit for measuring pH,
activity, conductivity and temperature
The new MULTI 2000 integrates all the mea-
suring possibilities of several meters into one
instrument: It can take direct measurements
of salt content, conductivity, temperature
and pH value.
The activity of soils and substrata can also
be determined with the MULTI 2000 meter.
This activity corresponds to the dissolved
total salt content (in grams of salt per litre).
The meter measures directly in the plant ca-
nopy, the soil, or substratum (i.e., directly at
the roots). This gives insight into the potential
absorption of nutrient salts by plants while
taking all soil characteristics into conside-
ration (such as temperature, moisture and
density). The scheduling of fertilization is
simplified when periodic activity measure-
ments are carried out. During crop develop-
ment, you can monitor different soil layers for
nutrient availability, long-term fertilizer attri-
butes and deployed fertilizer concentration.
The electrical conductivity in a solution can
be measured by switching into EC mode and
attaching the corresponding temperature-
compensated conductivity electrode. You
can make a targeted calculation of your fer-
tilizer use by factoring in the EC value of the
water you are using. This is the basis for all
crop processes that use irrigation-based fer-
tilization, including surface fertilization, dam
irrigation, drip irrigation, and also particularly
for soil-free crops.
The new microprocessor-controlled MULTI
2000 is also useful for providing a quick and
reliable check of the pH value. You can use
this meter to check the conductive slope
(and functionality) of a pH electrode.
The pH glass insertion electrode comes
with several diaphragms. Thus it is possible
to measure in solutions, substrata, natural
soils or mineral wool. A new feature here
is the ability to measure the temperature
in the field. The temperature is measured
in the same place that the pH, activity and
conductivity are being monitored (e.g., in
the fertilizer solution or in the different pot-
ting depths). The temperature probes can be
used either in solutions or in substrata. The
technical manual includes instructions, gui-
deline tables, usage tips, and the EC values
of typical fertilizers.
General
The MULTI2000 can be used to determine
the pH as well as conductivity, temperature
and soil activity, depending on the sensors
connected.
The device automatically recognises the
sensors connected (conductivity, tempera-
ture and soil activity) and selects the mat-
ching measuring range. The mode button can
be used to switch to pH measurement.
MULTI 2000