Table of Contents
Advertisement
6 CLEANING AND MAINTENANCE
DAILY CLEANING
6.1
The 9065C must be rinsed with cold water every day after use.
To rinse the 9065C, connect the inlet hose to a cold water tap and rinse the instrument with the
throttle valve open. If a very sticky liquid has been measured, a special cleaning process with a
cleaning agent, as described in 6.2.1, must be carried out regularly in order to prevent the build-
up of deposits.
Store the instrument in a cool location with the throttle valve open.
The temperature of the storage location must not be less than 0°C/32°F.
MONTHLY MAINTENANCE
6.2
NOTE:
SPECIAL CLEANING
6.2.1
When traces of contamination remain after thorough cleaning, the instrument must be partially
filled with a suitable cleaning solution.
To do so:
1. Connect the hoses to the instrument.
2. Pour the cleaning liquid into the inlet through a funnel until the liquid flows out of the
outlet. Collect the cleaning liquid that escapes in a suitable container.
3. It is also possible to carry out a short CIP cleaning flush. Leave the cleaning liquid in the
9065C so that the oxygen sensor on the instrument's inlet and the outlet are also cleaned
by the cleaning solution.
Suitable cleaning agents are:
Base cleaning agents with an alkali concentration of 0.5% - 2% (NaOH) that are intended
for use at room temperature.
Depending on the degree of contamination, the required cleaning time will vary from 15
minutes to several hours.
When completed, open the throttle valve and rinse the instrument with clean water.
Waltron User Manual
9065C Portable Luminescent Dissolved Oxygen Analyzer
Maintenance must be carried out by personnel who are
familiar with the applicable maintenance regulations.
Wear suitable protection against chemicals and pay special
attention to hot cleaning agents.
Cleaning and Maintenance
32
Advertisement
Table of Contents
