JUMO 701150 14597 safetyM STB/STW - Safety Temperature Limiter and Safety Temperature Monitor Operating Manual - Manual (Page 60)

6 Safety Manual 2014-05-01 60
- Seals of terminal heads and cable ducts
- Interruptions due to "knocking" on the thermometer/measuring insert
Since the maximum operating temperature influences the drift behavior, the thermometer should be recalibrated or replaced at
certain intervals to ensure reliable and precise temperature measurement.
The testing intervals are listed in the table below:
Maximum operating temper-
ature Pt - RTD temperature probe Thermocouples
200 °C 5 years 5 years
550 °C 2 years 5 years
700 °C 1 year 2 years
1000 °C Non-precious metal 1
year
Precious metal 2 years
1500 °C 1 year
H
The testing intervals specified here are recommendations that must be adapted to the special conditions at the
operating location and, if necessary, the user should perform the tests more regularly.