3. Suggested Application
The KFF and KFG serie
s flow meters are used for measuring small liquid or gas flows.
These units are configured as follows:
Analog output
In order to transmit the measured flow results, a
n analog output (0-5 V) is provided.
A 500 Hz. max. pulse output is available on some models.
Flow sensor with analog output
Integrated sensor with LCD digital display (3-digit)
The KFF meters may only be used for measurement of low-viscosity, clear
fluids (<10 cSt). Measurement of liquids with higher viscosity can result in significant
measurement errors.
The KFG meters are calibrated at standard conditions in air (1
4.7 PSIG, 68° F).
Notes for KFG-1 series:
Non-conventional media, pressures or temperatures may
require a user calibration on
site, by means of a comparison unit
or volumetric test.
Attention! The media to be measured must not be contaminated. In
particular, large particles can cause jamming or destruction of the
rotor.
4. Operating Principle
KOBOLD flow meter KFG and KFF are being used to measure small and very
small flow volumes. The medium to be measured can be in gaseous form (KFG) or
in liquid form (KFF). These units function according to Pelton principle,
meaning that
the flowing medium will set a paddle wheel in rotation. The rotary movement is
translated into pulses via photo cells. An electronic integrator uses these pulses to
generate a flow proportional, analog output signal (0-5 V).
KFF, KFG
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