RKI Instruments SD-705EC - Manual (Page 9)

PT2E-1140
② Power cable noise
Following is available to reduce the influence of electromagnetic induction
noise and electrostatic induction noise from power cable.
<Isolation from power cable>
Use signal cable with a shield and ground.
Make electrical isolation such as using metal installation pipe for power
cable, installing Isolation plate between power cable and electrostatic shield,
and install them into exclusive metallic duct.
(3) Grounding the instrument
Lightning(Thunder) and etc make surge noise. To protect an instrument from
surge noise, be sure to ground an instrument. Refer to 2-6. Wiring Method for
details.
２−４ Maintenance Space
A certain maintenance space must be secured around the detector, so that the maintenance
staff can perform the safe and correct maintenance and control operation of functions and
performance. Pay due attention to secure this space during work plan and execution.
Maintenance space
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