User’s & Technical Manual –
LEVEL TRANSMITTER LTR7000
GELEC
Industrial Electronics
PAGE
22
10.
CALIBRATION PROCESS - DEFAULT SETTINGS
LTR7000 operating model involves
two critical levels (‘Low level’ & ‘High Level’) which
can be re-calibrated by the user
in order to meet the application requirements. The
device configures the output linearization after each level calibration. The fluid level during
process and therefore the magnetic float
, should be between ‘Low’ and ‘High’ l
evels in
order to cause the relevant output changes.
Notice that if the level during process exits the calibrated level limits, but it is still within the
LTR7000 active measuring segment, there will not be an ERROR 2 output signal. In this case,
the output maintains the minimum/maximum value of the selected output range.
LOW LEVEL
‘Low Level’ is defined as the level where the LTR7000 provides the
minimum output value
of the selected output range
(for example 4mA, if the selected range is 4-20mA).
Unless otherwise stated on the product label,
LTR7000 is factory calibrated to provide
the minimum output when the float
’s magnet
(north pole) is aligned with the bottom
engraved line,
which defines the low end of the
device’s
active measuring segment.
FACTORY CALIBRATED LOW LEVEL (min output signal)
