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PTB150-MAN-V14.0
PTB 150-157 Instruction Manual
4 - SAFETY INSTRUCTIONS
ATTENTION:
•
Due to the fact that the thermostat is a portable instrument to be used in the field, it is very
important to ensure that the socket has been earthed correctly when connecting it to the
electricity supply.
•
Carry out the maintenance and repair operation only with the equipment at ambient
temperature and disconnected from the electric power.
•
During the use of the calibrator, the upper protection grid may overheat.
•
Don’t touch the probe to calibrate when it’s in the block.
•
After using wait for the stabilisation at ambient temperature before returning the calibrator to
its carrying case.
•
Never put any type of liquid inside the well.
•
Don’t change absolutely the configuration parameters.
•
Don’t put anything on the top of the ca
librator.
•
Do not operate the instrument in an excessively wet, oily, dusty, or dirty environment.
•
Do not connect any voltage higher to 5V to the input 4-5-15
•
Don’t put fuel objects near the calibrator.
...... use common sense any time.
The equipment adopt the following devices to protect operation from hazard:
•
Protection grid and cap-block to avoid any contact with the internal block.
•
Protection fuses (3)
•
Ground conductor.
AFTER EVERY USE AT SUB-ZERO TEMPERATURES REMEMBER TO SET UP 70°-80°C FOR
ONE HOUR IN ORDER TO EVAPORATE THE WATER IN THE WELL THEN SET AMBIENT
TEMPERATURE AND LEAVE FOR SAME MINUTES BEFORE SWITCHING OFF
