Endress+Hauser Liquistation CSF48 - Page 121

Liquistation CSF48 Inputs: pH/ORP Incl. combi sensors
121
Redox-Meas value (only ORP or combi sensor in ORP or rH mode)
You can specify limit values in order to monitor your process. A diagnostics message is displayed
if the limits are exceeded or undershot.
Process check system
--> "Inputs: General/Frequently occurring functions" section  ä 108
Limits operating hours
The total operating time of the sensor and its use under extreme conditions is monitored. If the
operating time exceeds the defined threshold values, the device issues a corresponding
diagnostics message.
Each sensor has a limited life expectancy which heavily depends on the operating
conditions. If you specify warning limits for operating times under extreme conditions, you
can guarantee the operation of your measuring point without any downtime by
performing maintenance tasks in time.
Path: Menu/Setup/Inputs/Redox or pH/Redox/Extended setup/Diagnostics settings
Function Options Info
Redox-Meas value Specify your limit values for monitoring the measured
value.
Upper warning limit Factory setting
900 mV
Diagnostics code and associated message text:
942 "Process value"
Lower warning limit Factory setting
-900 mV
Diagnostics code and associated message text:
943 "Process value"
Path: Menu/Setup/Inputs/pH or Redox or pH/Redox/Extended setup/Diagnostics settings
Function Options Info
Limits operating hours Specify your limit values for monitoring the number of
operating hours under extreme conditions.
The range of adjustment for the operating hours alarm and warning limits is generally 1 to 50000 h.
Function Options
•On
•Off
Factory setting
On
On
The operation of the sensor under extreme conditions is
monitored, recorded in the sensor and diagnostics
messages are displayed on the controller.
Off
No diagnostics messages. However, the time the sensor
operates under extreme conditions is recorded in the
sensor and can be read in the sensor information in the
diagnostics menu.