Accessories - Scaler Board

The Scaler Board is designed to enable a volt – free pulse to be produced from the standard G L Flow Turbine. The circuit counts input pulses from the Turbine Meter and produces an output pulse every time it reaches the scale factor. It has the facility to scale the Flowmeter input to provide a suitable volt – free pulse output.

By referring to the Flowmeter Calibration Sheet (pulse per litre, gallon etc.), it is possible to calibrate the Scaler Board at a given flow rate or over the full flow range of the Turbine.

Specification

Supply Voltage	8 to 28 V (regulated D.C. Supply)
Current Dissipation	50 mA (max)
Max. Switch Operation	2.5 Hz with 1 : 1 mark space ratio
Pulse Width	200 mS (on time)
Max. Switch Voltage	200 V D.C.
Max. Switch Current	250 mA
Max. switch Power	3A