Inputs: pH/ORP Incl. combi sensors Liquistation CSF48
118
Calibration timer and calibration expiration date
--> "Inputs: General/Frequently occurring functions" section ä 108
10.2.5 Diagnostics settings
This menu branch is used for specifying warning limits, and for defining whether and how dia-
gnostics tools should be used.
The associated diagnostics code is displayed for every setting.
Sensor check system (only pH glass or combi sensor)
The sensor check system (SCS) monitors the high impedance of the pH glass.
An alarm is issued if a minimum impedance value is undershot or a maximum impedance is
exceeded.
• Glass breakage is the main reason for a drop in high impedance values.
• The reasons for increasing impedance values include:
– Dry sensor
– Worn pH glass membrane.
Buffer recognition Options
•Fixed
•Automatic(only pH glass
or combi sensor)
•Manual
Factory setting
Fixed
Fixed
You choose values from a list. This list depends on the
setting for "Buffer manufacturer".
Automatic(only pH glass or combi sensor)
The device recognizes the buffer automatically. The
recognition depends on the setting for "Buffer
manufacturer".
Manual
You enter any two buffer values. These must differ in
terms of their pH value.
Buffer manufacturer Options
• Endress+Hauser
•Ingold/Mettler
• DIN 19266
• DIN 19267
•Merck/Riedel
• Hamilton
•Special buffer
Factory setting
Endress+Hauser
Temperature tables are stored internally in the unit for
the following pH values:
• Endress+Hauser
2.00 / 4.00 / 7.00 / (9.00) / 9.20 / 10.00 / 12.00
•Ingold/Mettler
2.00 / 4.01 / 7.00 / 9.21
• DIN 19266
1.68 / 4.01 / 6.86 / 9.18
• DIN 19267
1.09 / 4.65 / 6.79 / 9.23 / 12.75
•Merck/Riedel
2.00 / 4.01 / 6.98 / 8.95 / 12.00
• Hamilton
1.09 / 1.68 / 2.00 / 3.06 / 4.01 / 5.00 / 6.00
7.00 / 8.00 / 9.21 / 10.01 / 11.00 / 12.00
You have the possibility of defining two buffers of your own with the "Special buffer" option. For this purpose, two
tables are displayed in which you can enter value pH value/temperature value pairs.
Path: Menu/Setup/Inputs/pH or pH/Redox/Extended setup/Calib. settings
Function Options Info
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