Azbil JTD720A, Руководство пользователя, Страница: 5 / 76

Azbil Corporation Safety
Model JTD720A - Smart Multivariable Transmitter iii
Maintenance
WARNING
• Before disconnecting the transmitter from the process for any reason
including maintenance, wait for safe levels in residual pressure, fluid or gas.
Extreme caution should be taken to avoid fluid eruption.
• Prevent burns. Check venting or draining direction, and keep plant personnel
out of the way of vented gas or drained fluid.
• When operational, never open the cover in an explosion-proof area. Avoid
explosions or other combustion accidents.
CAUTION
Strict product controls were exercised during the manufacture of this transmitter.
Never modify the transmitter in any way. In-plant modifications may result in
damage to the transmitter or to property and human safety.
Communication equipment
CAUTION
Avoid use of communication equipment near this transmitter. Interference from
such equipment as a transceiver, a cellular phone, a PHS, a beeper may result
in malfunction (at some transmission frequencies). In any case, observe the
following precautions:
Check in advance of using any such equipment, the clearance required to ensure
safe operation of the transmitter. When using communications equipment, always
maintain a distance at least equal to this distance, between the communication
equipment and the transmitter.
Close transmitter cover before using communication equipment.