Toshiba LF470 - Manual (Page 7)

TOSHIBA
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Handling Precautions (continued)
(7) Observe the following precautions when you open the converter housing cover:
• Do not open the cover in the open air unprotected against rain or wind. This
can cause electric shock or cause damage to the flowmeter electronics.
• Do not open the cover under high ambient temperature or high humidity
conditions or in corrosive atmospheres. This can cause deterioration of
system accuracy or cause damage to the flowmeter electronics.
(8) This product may cause interference to radio and television sets if they are
used near the installation site. Use metal conduits etc. for cables to prevent
this interference.
(9) Radio transmitters such as transceivers or cellular phones may cause interference
to the flowmeter if they are used near the installation site. Observe the following
precautions when using them:
• Do not use a transceiver whose output power is more than 5 W.
• Move the anteima of a transceiver or a cellular phone at least 50 cm away from
the flowmeter and signal cables when using it. Do not use a radio transmitter
or a cellular phone near the flowmeter while it is operating online. The
transmitter or cellular phone’s output impulse noise may interfere with the
flowmeter.
• Do not install a radio transmitter antenna near the flowmeter and signal cables.
(10) For reasons of flowmeter failure, inappropriate parameters, unsuitable cable
connections or poor installation conditions, the flowmeter may not operate
properly. To prevent any of these problems causing a system failure, it is
recommended that you have preventive measures designed and installed on
the flowmeter signal receiving side.
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