UINICS LV1000 Series, Инструкция по эксплуатации

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２１．About a noise coutermeasure
When influence of noise occurred, please be careful about the following.
When doing a blackout and a malfunction by influence of noise, please try operation reset (refer
to page 11)or initialization（refer to page 19）
Please take notes of the value setting of each mode. If it becomes normal, please take the
following measure.
And please setting it once again.
(1) Please use cores of shielding wire for a sensor, separate as much as possible from a source of
noise.
(2) Please shorten the sensor code as much as possible.
Please avoid sources of noises such as the power lines and inverters, select the route that
doesn't pick up the noise as much as possible, and wire.
(3) When you receive the influence of the noise from the power line
Please separate from the noise source, shorten wiring as much as possible, and give the
treatment such as EMI filters.
(4) Wiring technique of sensor code
Around the sensor code, there are an electric power line and a power line.
When the influence of the noise such as serge is received, let's use piping.
Or, please separate by 50 centimeters or more.
Fig.27 Fig.28
(5) Stop the noise generation caused by an external factor.
Please put and plan the spark killer as shown in Fig.29 when the serge noise by the opening
and shutting of the having points of contact of the electromagnetic switch, the thermo
regulator, the solenoid-controlled valve, and the relay, etc. from which a strong noise seems
to be generated in the control board in which the meter is installed and the circumference
influences.
Fig.29
(6) Especially, please consult the handling shop or our company when there are use in a big noise
area and a point of uncertainty.