Basic Operation - WEBTEC RFS200 Manuel De L'utilisateur

Basic operation

The flow metering is achieved with a tapered piston in a sharp-edged orifice. With as little as 10 L/min the piston moves to the point at which the
switch is activated, and the hours counter starts recording. Greater flow moves the piston further through the orifice and it will continue counting.
When flow reduces below 10 L/min the switch is deactivated and the counter stops. This arrangement allows the possibility for the switch point
to be set higher, but this is a factory only adjustment.
The unit will allow reverse flow to pass with ease, but the counter module will not register any time.
The hours counter permanently displays cumulative time and cannot be reset.
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