ProMinent Chlorinsitu-III, Assembly And Operating Instructions Manual

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9.1.4 Product tank alarm
This alarm occurs when the level in the product tank reaches the
switch. The following causes are possible:
n
The level switch in the product tank is not working correctly.
n
Product is escaping from the pump valve to the product tank
into the product tank.
n
The product tank is filled with external liquids.
This alarm occurs when the level in the product tank is too low.
The following causes are possible:
n
More product is pumped out of the product tank than is pro‐
duced by the system.
n
No product is produced.
n
The level switch in the product tank is not working correctly.
n
The external contact is missing.
9.1.5 Caustic tank
This alarm occurs if the air flow in the hydrogen discharge channel
is too low when the fan rotates. The following causes are possible:
n
The hydrogen discharge conduit is blocked.
n
The sensor air flow is not correctly set up.
n
The fan is faulty.
This alarm occurs if the switch for the minimum liquid level of the
caustic tank is reached. The following causes are possible:
n
Lye is escaping from the caustic tank.
n
The lines to the caustic tank are not leak-tight.
n
No process water is entering the caustic tank.
n
Lye leaks from the system through the membranes in the
membrane cell.
n
This alarm can occur if the system is idle and does not produce
for longer than one day.
This alarm occurs if the switch for the high liquid level in the caustic
tank has been reached. The following causes are possible:
n
The overflow from the caustic tank to the production tank is
(even partially) blocked.
n
Cooling water penetrates the caustic tank and/or the produc‐
tion tank.
n
The line from the production tank to the product tank is blocked
and the
[Production tank liquid level too high] alarm is not
working.
This alarm occurs if the water pressure is too low and the metering
time is therefore longer than the interruption time. The following
causes are possible:
n
The water pressure is too low.
n
The process water flow meter is faulty.
n
The water valve is not mechanically opened.
Product tank level too high
The level of the product tank is too
low
Air flow too low
The liquid level of the caustic tank is
too low
Level of the caustic tank is too high
Water supply too low
[ALARM] / Troubleshooting menu
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