14
MODEL 226
SECTION 4.0
MAINTENANCE AND TROUBLESHOOTING
SECTION 4.0
MAINTENANCE AND TROUBLESHOOTING
4.1 SENSOR MAINTENANCE.
CAUTION
For personal safety, make sure sen-
sors have been cleaned of process
fluid before handling.
The only maintenance required during the normal
operational life of the sensor is to ensure that there
are no significant deposits accumulating on the sen-
sor.
4.2 TROUBLESHOOTING.
Please refer to Sensor Resistance Check Table 4-1
and Temperature vs Resistance Table 4-2.
TABLE 4-1. Sensor Resistance Check
** Resistance listed are for TC values at 25
°
C (77
°
F). See Table 4-2 for other temperature values.
FOR OPTIONS -54, -55, AND -56
FOR OPTION -50
