Toshiba LF434 - Manual (Page 155)

Appendix 1
EJectromagnetic Compatibility and Low Voltage Safety
Electromagnetic Flowmeter LF434/LF404 has been confirmed to comply with the requircmeiHs of the EMC
directive 8‘S/336/EEC and the low voltage directive y3/68/l:EC.
EMC directive
This device has been tested in a typical configuratior in accordance with the following standards in an in­
dustrial environment,
TOSHIBA 6 F 8 A 0 7 7 , 0
Generic emission standard
Conducted RF emissions
Radiated RF emissions
Generic immumiy standard
Conducted RF immunity
Radiated RF immunity
Hlectrosiatic disdiarge
Fast transient burst
EN500&1-2
¥>i55Q\l
EN55Q[1
EN50082-2
ENV50141
EN V.^ f n 40/EN V5 02U4
EN61000-4-2
EN6K)nO-4-4
The above KMC tests have been carried out with the flowmeter installed properly in accordance with this
instruction manual. However, there is no guarantee that interference will not occur in a particular installa­
tion.
To reduce interference to or from other equipment, please check the following installation points.
(1) Use shielded cables for all I/O cables. When the flow'meter is the separated type, the signal cable
and excitation cable for the connection between the detector and the converter arc supplied by
Toshiba. To improve immunity, pass each cable through a thick steel conduit tube.
(2) If this device is installed in an area where RFI exists, deviation of the current output signal may be
caused. In this case, ferrite cores will be required on each EO cable. Please contact Toshiba or the
agency if required.
(3) This device is designed to be used in an industrial environment and may cause reception interfer­
ence to radio, television or wireless communications. In this case, relocate the receiving antenna.
(4) The use of a transceiver or wireles.s equipment near this device may cause interference to the accu­
rate measurement. H deviation of the output signal appears during use of a radio, increase the dis­
tance between the convener or the signal cable and the antenna.
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