Hanna Instruments bl 7917 用户手册

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页码 44
17
Downhill Installation
Suggested installation when pumping from one container to another,
each at different levels and with only nominal pressure.
START-UP
At start-up, purge all chemical gases and air from the suction tubing,
valves and pump head. Start the pump.
When all the air or gas is vented, the solution being metered will
appear in the output line.
Note: only when operating under pressure, the pump must be started
unloaded.