ICS Schneider Messtechnik Snap 41, Инструкция по эксплуатации и информация о безопасности

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11.1.2 Cleaning at the End of a Measurement Series
At the end of your measurement series, clean your Snap 41 thoroughly
before you store it. You need not dry the measuring cell (provided that the
cleaning liquid will not freeze in the measuring cell). You can leave deionized
water in the measuring cell when you store the instrument for a day.
11.1.3 Cleaning Visible Residues in the Measuring Cell
Some samples may cause residues in the measuring cell after longer mea-
surement periods. In this case, use an enzymatic lab cleaner to remove the
residues from the cell. We recommend “Winepress Cleaner PM Membrane
Presses”, cat. no. 409004, by Wigol
®
or “TM Desana” by Thonhauser. Refer
to the instructions of the manufacturer concerning the concentration of the
cleaning agent.
11.1.4 Cleaning Agent – Recommendations
For cleaning the instrument, use two cleaning liquids:
• Cleaning liquid 1 dissolves and removes sample residues in the
measuring cell. It has to be a good solvent for all sample components.
• Cleaning liquid 2 removes cleaning liquid 1 (has to be a good solvent for
cleaning liquid 1) and evaporates easily so that it accelerates drying of
the cell. It must not attack the U-tube or leave any deposits, as drops of
cleaning liquid 2 will remain in the U-tube.
TIP:
To prevent limestone deposits, never use tap water as the cleaning
liquid 2. Use ultra-pure water instead.
Strong alkaline lab cleaners (pH > 10.5) should only be applied briefly and at
temperatures below 25 °C because strong bases attack the glass surface
upon prolonged exposure and at high temperatures.
NOTICE
If you want to dry the measuring cell with compressed air, do not apply an
overpressure of more than 1 bar (14.5 psi).