VWR International 89231-656, Руководство пользователя

Страница: 11 / 16

Table 2 Cleaning agent
Contaminant Cleaning agent Soak time
Mineral deposits 0.1 N HCl 5 minutes (maximum)
Fats, grease and oils Warm, mild detergent solution 2 hours (maximum)
Dissolved oxygen probe (89231-660 multisensor)
Clean the probe
N O T I C E
Use only deionized water and/or the polishing cloth to clean the anode and cathode.
1. Remove the membrane module from the probe:
a. Hold the probe so it is vertical with the tip down.
b. Gently turn the membrane module to remove it from the probe.
2. Soak the membrane module in a mild soap solution.
3. Rinse the membrane module fully with deionized water.
4. Invert the membrane module and shake vigorously to remove any water.
5. Rinse the probe with deionized water. Blot dry with a lint-free cloth.
6. Rub the anode with the polishing cloth supplied. The anode is the outer metallic stem of the probe
that is visible when the membrane module is removed. The polishing cloth removes deposits that
can decrease the probe performance.
7. Fill the membrane module
2
/
3
full with filling solution and assemble the probe. Refer to Fill the
membrane module on page 11.
Replace the membrane module
N O T I C E
Carefully handle the membrane modules to prevent damage.
It is necessary to replace the membrane module periodically. Replace the membrane module when it
is damaged, the probe reading drifts or the probe has a slow response.
1. Remove the membrane module from the probe:
a. Hold the probe so it is vertical with the tip down.
b. Gently turn the membrane module to remove it from the probe.
2. Discard the used membrane module.
3. Rinse the probe with deionized water. Blot dry with a lint-free cloth.
4. Rub the anode with the polishing cloth supplied. The anode is the outer metallic stem of the probe
that is visible when the membrane module is removed. The polishing cloth removes deposits that
can decrease the probe performance.
5. Fill the new membrane module
2
/
3
full with filling solution and assemble the probe. Refer to Fill
the membrane module on page 11.
Fill the membrane module
Add filling solution to the membrane module if the level of filling solution in the membrane module is
less than
2
/
3
full.
1. Remove the membrane module from the probe:
a. Hold the probe so it is vertical with the tip down.
b. Gently turn the membrane module to remove it from the probe.
English 11