ProMinent DULCODOS Ammonia, Руководство по эксплуатации, Страница: 26 / 52

5. Check the operation of the “transfer pump” and check that it
switches off via the level switch in the metering vessel: Start
up the “transfer pump” using the green key
[Start filling metering vessel] (is the multifunctional switch
turned to “External”?) and fill the metering vessel until the
level switch is triggered and the “transfer pump” stops. At the
same time, check the parts, such as the “transfer pump”, suc‐
tion line, the line to the metering vessel and the metering
vessel itself for leak-tightness. Finally close the stopcock
once more.
6. Functional test of the “metering pump": Switch on the
“metering pump” at the multifunctional switch and bleed the
liquid end - see "Operating instructions for solenoid metering
pump Beta ® BT4b and BT5b". Check the leak-tightness of
the “metering pump”, metering line and injection valve and
their threads. Finally switch off the “metering pump”.
7. Check whether the suction line and the vapour recovery line
are fastened to the suction lance with hose clips. Ensure the
line connectors are securely seated and check for leaks.
8. Only with concentrations above 15% w/w: Take appropriate
measures to prevent a spark jumping to ignite the ammonia-
air atmosphere when attaching the suction lance to the
storage tank.
9. Replace the test tank with a storage tank.
10. After commissioning the ammonia water metering system,
carry out one more complete visual inspection to ensure its
final safety.
The ammonia water metering system can now be handed over for
operation.
Start up
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