Issue: 03.2013 (EN) 5
Application errors
Observe the following points in order to avoid incorrect
measurements:
▪ do not take measurements during incorrect
development stages
▪ do not perform measurements on insufficiently
developed leaves
▪ do not perform all measurements on the same plant
▪ do not perform all measurements on a small area of
the field
▪ do not use the N-Tester on areas with sulphur
deficiency
▪ do not use with visible drought stress (leaves rolled
together)
▪ do not measure using an old software version
Exclusion of warranty
The manufacturer is not liable for the following damages to
the device:
▪ damage to the device following impacts or vibration
▪ damage to the device resulting from penetrating
moisture
▪ damage to the display resulting from pressure
application and scratches
▪ malfunctions due to damage to the measuring head
and scratches, etc. in the sample slot
▪ malfunctions from cleaning the sample slot with
cleaning agents containing alcohol or other chemicals
▪ damage caused by heat or intensive solar radiation:
The device must not be placed in the immediate
vicinity of heat sources or be exposed to direct
sunlight.
▪ incorrect disassembly of the device
▪ incorrect storage (see 'Transport and storage' on
page 22)
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