Throttle Valve Chamber - Waltron 9065C Instruction Manual

Cleaning and Maintenance

When there are salt deposits in the instrument (beer stone), the instrument must also be
cleaned at room temperature as described above using an acidic cleaning agent with a
nitric acid base (~ 0.5%) or a phosphoric acid base (~ 2%).

Once completed, the instrument must be rinsed with cold water. Do not use cleaning
agents that contain chlorite or fluorine.
After rinsing, make sure no traces of the cleaning agent remain in the system. Insufficient rinsing
can lead to corrosion under the O-rings.
Recommended alkali cleaning agents:

Divo Schaum ML

P3-F

Kinray D

Fett-Löser
Recommended acidic cleaning agents:

Dilac R

P3 Horolith 283

P3 Trimeta S Special

THROTTLE VALVE CHAMBER

6.2.2
Procedure:
1. Unscrew the throttle valve all the way out of the measurement chamber unit.
2. Use the O-ring puller from the service set to remove the O-ring from the throttle valve.
3. Clean the throttle valve.
4. Use the brush from the service set to scrub the throttle valve with a cleaning solution and
then rinse it thoroughly with water.
5. Replace a damaged O-ring . Make sure the O-ring's sealing surface is not damaged! Only
use O-rings from the service set. Several O-rings are included in the service set.
6. Lightly lubricate the throttle valve and the O-ring with the silicon grease from the service
set.
7. Carefully refit the throttle valve into the housing.
33
Diversey
Henkel
Reddish Savilles
Dr. Becher
Diversey
Henkel
Henkel
9065C Portable Luminescent Dissolved Oxygen Analyzer
Waltron User Manual