FMT Swiss AG 23295, Руководство по эксплуатации

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Operating instructions for turbine flow meter
G
1.2.3 Measuring chamber
The measuring chamber is located in the centre of the meter.
There is a turbine in the measuring chamber, set in rotation by the flow of liquid. Each revolution will
generate an electrical pulse that is processed by the microprocessor on the control circuit board.
The microprocessor uses a calibration factor (i.e. a ‚weighting‘ assigned to each pulse) to convert the
pulses generated by the gears‘ revolutions into an intelligible value representing the volume of liquid
that has passed through. It is then displayed in the unit pre-set before in the corresponding registers of
the LCD display for partial and total volumes, respectively.
All of our turbine flow meters leave the factory with a default calibration factor = 1000 called
„FACTORY K FACTOR“. There is a possibility to calibrate the meter in order to adapt that factor to the
physical properties of different liquids.
However, there is always a possibility to return to the manufacturer‘s default setting.
1.2.4 Battery compartment
The meter is powered by two 1.5 V standard batteries (N1).
The battery compartment is inside the body. To replace the batteries, you must remove the cover.
1.3 Technical data
Designation 23295
Measuring system Turbine
Accuracy l/pulse 0,017
Flow rate range l/min 10 - 100
Operating pressure bar 40
Burst pressure bar 80
Storage temperature °C -20 to +70
Storage humidity R.H. 95 %
Max. operating temperature °C 60
Flow rate loss at max.
flow (with diesel oil)
bar 0,2
Compatible liquids Heating oil, diesel, hydraulic oils
Viscosity range cSt 2 - 2000
Accuracy
(within flow rate range)
±0,5 %
Repeatability 0,2 %
Weight kg 0,39
Threads at
inlet and outlet
1“
Power supply (batteries) V 2 x 1,5
Lifetime of batteries (est.) h 14.000 - 30.000
Table 1-1: Technical data