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Turbine signal adapter board
This board conditions the low level analog signal from a turbine meter pickup for use with other equipment's digital inputs.
The low-level AC signal is amplified and squared. The squared signal drives an open collector transistor to provide a pulsed DC signal interface to the other equipment's digital input. This signal is referenced to the voltage supply common and will couple directly to an input requiring a sinking signal. A pull up resistor is necessary for inputs that require a sourcing signal. Each turbine signal cycle produces one output pulse.
|Size:||1-1/2" x 3" PC board|
|Terminals:||Removable terminal blocks|
|Operating temperature:||-40 to 158 deg. F (-40 to 70 deg. C)|
|Relative humidity:||5 to 90% non-condensing|
|Typical:||10 mA @ 9-24 VDC|
|Input:||20 mVrms to 10 Vpp 10 Hz to 3 kHz|
|Output:||Open collector FET; 30 VDC max; FET source to voltage supply common; on board 100 Ohm current limiting resistor|