Annex
C Maintenance protocol
PIOX R721
2021-09-01, UMPIOX_R721V1-3EN
108
C
Maintenance protocol
Maintenance
C.1
Visual inspection
• Clean the sensor. Remove any deposits or dirt on the window and biprism.
• Check the sensor head (the part in contact with the fluid). If there are any signs of corrosion, deep scratches or
damages, especially on the gaskets, please contact FLEXIM and give a precise description of the problem.
• Check all gaskets. If the gaskets are swollen or brittle and cracked, send the sensor to FLEXIM to replace the gaskets.
C.2
Functional test
measuring point (designation):
type of change:
settings and measured values in the transmitter:
characteristic curve of the fluid created by:
date:
device
sensor
PIOX R500-
ser. no.:
transmitter
PIOX R721
ser. no.:
The sensor head is intact:
yes
no: contact FLEXIM
The gaskets are intact:
yes
no: send the sensor to FLEXIM for repair
the composition of the fluid has not changed since the last start-up/maintenance
date:
a changed/new fluid is measured since:
process fluid
solvent
physical quantity
concentration
operating point:
range:
other components
fluid temperature
ambient temperature
pressure
selected fluid in the transmitter
FLEXIM
customer