LEMKEN Primus 10 - Volumetric Metering of the Nozzles and Calibrating the Flowmeter

Preparations
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5.6 Volumetric metering of the nozzles and calibrating the flowmeter
Automatic control of the distribution rate
[l/ha] is achieved via the travel speed and
the flow of the spraying fluid through the
nozzles. The spraying fluid flow rate de-
pends on the selected nozzles and the
spray pressure.
The spraying fluid flow rate is measured
using the flowmeter. If the spraying fluid n
flows through the flowmeter, impulses are
triggered. The impulses are recorded and
used to calculate the flow rate.
To ensure the calculated flow rate corres-
ponds to the actual flow rate, the flow rate
can be checked by volumetric metering the
nozzles and the flowmeter can be calibra-
ted.
Applications:
 Before commissioning for the first time
 At the start of each season
 If the distribution rate displayed differs
from the actual distribution rate sprayed
 When the flowmeter has been replaced
or repaired
Preconditions:
 The general approach taken to working
with the control system is well known.
 Measurement cup on hand.
 The entire implement is cleaned with
clean water.