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PTB150-MAN-V14.0
PTB 150-157 Instruction Manual
7 - MAINTENANCE INSTRUCTIONS
To have instrument always efficient is opportune to re-calibrate it periodically.
Frequency of re-calibration is depending to the use of instrument; however we suggest to re-
calibrate instrument every year.
To re-calibrate the instrument is necessary to have a standard temperature instrument, the
software ‘CALIBRA’ and follow the instructions of the software
or alternately follow the instructions
of item 10.1.
Use at subzero temperatures generates the formation of ice and mist.
In order to keep inserts always clean, at the end of every use at subzero temperatures please
remember to set the furnace temperature at 70-80 °C for 1 hour so as to let water evaporate, then
set the room temperature and let the calibrator cool down, before stopping it.
Water remaining in inserts generates aluminium oxidation resulting in the hole; in order to avoid
this problem, please remember to let water evaporate and to remove inserts from the calibrator at
the end of use.
Check the power supply cable and replace it if damaged.
Remove dust from the calibrator and avoid the fan sucking dirt from the bottom of the machine; if
necessary, clean the heat sink, by blowing air from above the grating by means of an airgun.
8 - MAINTENANCE SEQUENCE
Not applicable
