Endress+Hauser Liquisys M CPM253 User Manual

Diagnostics and troubleshooting Liquisys M CPM223/253
82 Endress+Hauser
E172
Switch-off limit for
current input exceeded
Check process variables at sending
measuring instrument. Change range
assignment if necessary.
Yes No No - -
E173 Current input < 4 mA
Check process variables at sending
measuring instrument.
Yes No No - -
E174 Current input > 20 mA
Check process variables at sending
measuring instrument. Change range
assignment if necessary.
Yes No No - -
E175 SCS glass warning
Check electrode for glass breakage or
hair-line cracks;
Check medium temperature.
Measurement can continue until the
error occurs.
No No No 44 80
E177
SCS reference electrode
warning
Check electrode for contamination and
damage; clean electrode; measuring can
continue until the error occurs.
No No No 44 80
E180 Data error sensor
No measured value from the digital
sensor. Check that the sensor is
correctly connected.
Yes No No 0C 0C
1) If this error occurs, there is no possibility of starting a cleaning session (field F8 not applicable with this error).
2) Current error messages not applicable via PROFIBUS
Error
no.
Display Tests and/or remedial measures Alarm contact Error current Autom.
cleaning start
PROFIBUS
Status
Facty User Facty User Facty User pH Temp

Endress+Hauser Liquisys M CPM253 Specifications

General

Brand	Endress+Hauser
Model	Liquisys M CPM253
Category	Transmitter
Language	English