Toshiba LF434 - Manual (Page 7)

TOSHIBA
, 6 F 8 A 0 7 7 0
Handling Precautions (continued)
j (7) Observe the following preenulions when you open the converter housing cover:
• Do not open the cover in .he open air unprotected ngninst rain or wind, J his
cun cause electric shock or cause damage to the ilowmetcr elccironics.
* 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 dec ironies,
(B) 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
thi.s interference.
(9) Radio Iransmiilers such as tran.sceivers or cellular phones may cause interference
to the ñowmcter if they are used near the installation site. Observe the following
precautions when using them:
• Do not use a radio transmitter while the cover of flowmeter converter is open.
• Do not use a tran.scciver whose output power is more than
5
W.
• Move the antenna of a ratio transmitter at least 50 cm away from the flowmeter
and signal cables when using it.
• Do not use a radio traiismitler near the ñowmeler while it is operating online.
The transmitter's output impulse noise may interfere with the flowmeter.
• Do not install a radio transmitter antenna near the flow'meier converter and
signal cables.
(10) For reasons of flowmeter failure, inappropriate parameters, unsuitable cable con­
nections or pCHjr 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 iitstallcd on the flowmeter signal re­
ceiving side.
-
6
“