IT9120 series Programming Guide
Copyright@ITECH ELECTRONIC CO.,LTD
ii
Safety Precautions
The following safety precautions must be observed during all phases of
operation of this instrument. Failure to comply with these precautions or specific
warnings elsewhere in this manual will constitute a default under safety
standards of design, manufacture and intended use of the instrument. ITECH
assumes no liability for the customer’s failure to comply with these precautions.
Do not use the instrument if it is damaged. Before operation, check the
casing to see whether it cracks or is not applied with sufficient plastics. Do
not operate the instrument in the presence of inflammable gasses, vapors
or dusts.
Make sure to use the power cord supplied by ITECH.
Check all marks on the instrument before connecting the instrument to
power supply.
Turn off the instrument and the operation system before connecting to the
I/O terminal.
Do not use the instrument if the detachable cover is removed or loosen.
Do not connect the instrument to any cable or terminal block before
self-testing.
To prevent the possibility of accidental injuries, be sure to use the power
adapter supplied by the manufacturer only.
Never use the instrument with a life-support system or any other equipment
subject to safety requirements.
Failure to use the instrument as directed by the manufacturer may render
its protective features void.
Always clean the casing with a dry cloth. Do not clean the internals.
Make sure the vent hole is always unblocked.
Environmental Conditions
The instrument is designed for indoor use and an area with low condensation.
The table below shows the general environmental requirements for the
instrument.
Environmental Conditions
Requirements
Operating temperature
5°C-40°C
Operating humidity
humidity
20%-80%
(non-condensation)
Storage temperature
-20°C-50 °C
Altitude
Operating up to 2,000 meters
Installation category
II
Pollution degree
Pollution degree 2
NOTE
To make accurate measurements, allow the instrument to warm up for 30 min.