Omron K3HB-C User Manual page 10

● Noise Countermeasures
Do not install the product near devices generating strong high-frequency waves or
surges, such as high-frequency welding and sewing machines.
(1) Mount a surge suppressor or noise filter to peripheral devices generating noise, in
particular, motors, transformers, solenoids, and magnet coils.
(2) In order to prevent inductive noise, wire the lines connected to the terminal block
separately from power lines carrying high voltages or currents. Do not wire in parallel
with or in the same cable as power lines. Other measures for reducing noise include
running lines along separate ducts and using shield lines.
Example of Countermeasures for Inductive Noise on Input Lines
(3) If a noise filter is used for the power supply, check the voltage and current, and install
the noise filter as close to the product as possible.
(4) Reception interference may occur if the product is used close to a radio, television, or
wireless.
Line filter
+
Digital
Indicator
-
Surge suppressor
Signal input
2 conductors with shield
Digital Indicator
Digital Indicator
IX