Knick Ceramat WA 154, Руководство пользователя

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23
Cavity Rinsing Function
In SERVICE position, inlet and outlet are directly connected with the calibration chamber.
The ceramic slides are mounted in an outer housing, which is in contact with the process.
There is a risk that process fluid penetrates into the cavity between ceramic and outer housing.
Such fluids can be drained off using the cavity rinsing function. For this procedure, the inlet is rerouted to the
cavities when the sensor lock-gate moves to PROCESS position. When the rinsing function is activated (eg, by
Unical), the cavities are rinsed and the fluids are drained off through the outlet.
Normally, rinsing should be performed every 8 hours for 30 seconds.
With very frequent probe movements, aggressive or sticky process media, the rinsing intervals should be
accordingly reduced.
Outlet
Outer housing
(PVDF, PEEK)
Ceramic,
rotating
Ceramic,
fixed
Inlet
Sensor
Cavity
Ceramic sensor lock-gate
in PROCESS position
Cavity