1. System installation requirements
1-2
TI 30A30A10-01EN
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Electric field strength (Electric wave condition)
For stable operation, the system equipment should be used while the doors are closed. The
electric field strength of the location for the enclosure housing the equipment should be kept
below the following values.
10 V/m or less (80 MHz to 1.0 GHz)
3 V/m or less (1.4 to 2.0 GHz)
1 V/m or less (2.0 to 2.7 GHz)
In case of the usage of wireless equipment such as transceiver nearby this system, note as
following:
• The door of this system should be closed.
• In case of the usage of transceiver with 3 W or less, the distance from this system should be
kept 1 m or more, with 10 W or less, 2 m or more.
• As for the usage of wireless equipment with 1 W or less such as mobile-telephone, PHS,
wireless telephone or LAN equipment, the distance should be kept 1 m or more. Attention
should be paid to the micro wave radiated from mobile-telephone or PHS even out of usage.
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Installation specification
Installation height: Altitude of up to 2000 m
Installation category based on IEC 61010-1 (*1):
Category I
• For YOKOGAWA products, category I applies to the device that receives the electric power
not more than 33 V AC, 70 V DC.
Category II
• For YOKOGAWA products, category II applies to the device that receives the electric power
exceeding 33 V AC or 70 V DC.
Pollution degree based on IEC 61010-1: 2 (Environment inside the enclosure) (*2) (*3)
Indoor/Outdoor use
*1:
The installation category, also referred to as an overvoltage category, defines the standard for impulse voltage. The category
number from I to IV applies the devices to determine the clearance required by this standard.
Category I applies to the device intended to be connected to a power supply with impulse voltage reduced to the safe level.
Category II applies to the device intended to be supplied from the building wiring.
*2:
Pollution degree indicates the adhesion level of foreign matter in a solid, liquid, or gaseous state that can reduce dielectric
strength. Degree 2 refers to a pollution level equivalent to the general indoor environment.
*3:
Do not submerge the enclosure in water.
SEE
ALSO
See “Installation environment specifications” at the end of this chapter.
Feb. 26, 2018-00
