5.2.1 liquid line of water inlet tank
Explanation：
Z1——heater； Z2——lamp coller； Z3——float； Z4——temperature sensor；
Z5——water tank； Z6——magnetic pump； Z7——water seven-pass；Z8——air discharger
Z9——flow controller；Z10——pressure sensor；Z11——5 valve plate assembly；A——detergent；
B——probe inner wall rinsing；C——Cuvette rinsing；D——stirring rod rinsing；E——probe external
wall rinsing ； F——water inlet ； G——incubation bath inlet ； H——air outlet ；
M——overflow outlet； N——cuvette rinsing
1, When the low water level float detects out the signal, open the inlet valve SV13, and water tank
begins to be infused water until the high water level float detects out signal, then turn off SV13 to stop
the water. Influent flow is as follows:
2, When the low water level float did not detect out signal, the water tank heater began to work,and
temperature control started. Magnetic pump began to work simultaneously.
3, Output water pressure of water tank is controlled by the magnetic pump and fixed damper regulator.
Magnetic pump head is 4.6 m（50Hz）. Control water pressure is around 0.45kgf/cm2.
4,The tank water is pumped into the seven-pass through magnetic pump: the first pass to the
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