Ism Design; Changing The Electrolyte, The Membrane Body Or The Interior Body - Mettler Toledo InPro 6850 i Bedienungsanleitung

InPro 6850 i / 6900 i / 6950 i O
i nfluence on the measuring properties of the sensor.
Slight discoloration of the electrolyte also has no ef-
fect on the measuring properties.

6.1.4 ISM design

The integrated ISM functionality allows an extensive
monitoring of the sensor. The following parameters
are stored in the sensor:
– serial no.
– type of sensor
– order no.
– calibration data
– CIP / SIP counter
– slope
– zero point
When starting the following automatic test proce-
dures are implemented:
– dgital communication
– plug & measure
– pre-calibration
– predictive maintenance
6.2 Changing the electrolyte, the membrane body
or the interior body
h
Note: The InPro 6900 i and 6950 i use a special
electrolyte which contains an oxygen scavenger.
This electrolyte ensures fast response time and
together with the guard ring increases the signal
stability of the sensor. The electrolyte must be
exchanged on a regular basis or when the sen-
sor has been exposed to the air for more than 24
hours without a watering cap filled with condition-
ing solution.
h
Note: The content of the electrolyte bottle has to
be used within 3 months after opening.
If the membrane and / or the interior body exhibits
signs of failure (long r esponse time, increased cur-
rent in an oxygen-free medium, mechanical damage,
etc.) the membrane body and / or the interior body
has to be replaced.
a
Warning! The O
value. Contact of electrolyte with mucous mem-
brane or eyes is to be avoided. Therefore protec-
tive gloves and safety glasses have to be worn for
the following dismantling works. If such contact
occurs, the affected area should be well rinsed
with water. In the case of accident, or should ever
any adverse signs appear, get immediate medical
attention.
© 04 / 13 Mettler-Toledo AG
Printed in Switzerland
Sensor 12 / 25 mm
2
electrolyte has an alkaline pH
2
InPro 6850 i / 6900 i / 6950 i
23
52 206 349