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アクセサリー 4B WDB81 SeriesのPDF 取付説明書をオンラインで閲覧またはダウンロードできます。4B WDB81 Series 14 ページ。 Bearing temperature sensors
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All wiring must be In accordance with local and national electrical codes and should be undertaken by an
experienced and qualified electrician.
Optional connection for dust/liquid tight flexible metal conduit with approved fittings to protect the sensor
cables. Note: conduit systems can channel water due to ingress and condensation directly to sensors
and sensor connections which over time will adversely affect the performance of the system. As such, the
installation of low point conduit drains is recommended for all sensors.
All WDB8 sensors are non-polarity sensitive, however 4B recommends wiring the sensors as outlined
below.
Do not wire the sensor across the voltage source directly. Always ensure that the sensor is wired into
a signal conditioning circuit for the temperature measurement. Please note that if the power applied
across the sensor exceeds the specified maximum rated power or current, then the sensor may be
damaged beyond repair. When properly wired to 4B controllers, the power rating across the sensors is
kept at a safe level.
STANDARD WIRING DIAGRAM
BLACK - Power
BROWN - Input
NTC WIRING (WDB810*)
BLACK - Power
BROWN - Input
PTC WIRING (WDB812*, WDB813*,
WDB814*, WDB815*, WDB816*)
BLACK - Power
BROWN - Input
PTC WIRING (WDB819*)
WARNING
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