Changing The Co Electrolyte And Membrane Body; Maintenance Of The Ph Electrode; Ph Electrode Replacement; Storage - Mettler Toledo InPro 5000 Bedienungsanleitung

InPro 5000 CO
6.2 Changing the CO
and membrane body
We recommend to use a new membrane body after
each batch (see section 4.3). After each calibration of
the pH electrode (section 4.2) new CO
should be filled in the membrane body.
6.3 Maintenance of the interior body (pH electrode)
If the pH electrode shows a sluggish response
time and / or insufficient sensitivity the pH sensitive
glass can be reactivated using a HF solution
(p/n 51 319 053). The pH sensitive glass part only
is immersed into this solution for 5 minutes, is then
immediately and thoroughly rinsed with deionized
water and then stored in 3 M KCl up to the diaphragm
for 12 hours. This procedure will make the electrode
faster but will limit the life time hardly.
6.4 Replacement of the interior body (pH electrode)
Typically after 10 – 20 sterilization cycles the pH
electrode must be replaced. Please refer to the
instruction manual of the replacement interior body
InPro 5000.
7

Storage

For storage we recommend to fill the membrane
body with fresh CO
sensor together. The wetting cap, filled with water, will
prevent a drying-out of the membrane.
© 09 / 06 Mettler-Toledo AG
Printed in Switzerland
Sensor 12 mm
2
electrolyte
2
electrolyte and rebuilt the
2
17
electrolyte
2
InPro 5000
52 002 465