Ametek Thermox WDG-V UOP, User Manual

Page: 49 / 96

Installation Guide | 3-15
General Wiring and Conduit Requirements
This section provides mandatory EMC grounding, shielding, and noise
protection requirements.
• Sensor wiring conductors must be rated at a minimum of 80°C. All
other wiring conductor ratings should be for the minimum temperature
required for the equipment being connected to the analyzer, but not
less than 60°C.
• Use only the applicable NEMA-approved conduit fittings or cable fit -
tings to maintain the NEMA rating for the sensor enclosure or WDG-V
UOP. If not using a conduit entry, leave the factory NEMA-approved
plugs intact. Never leave any holes unplugged.
• Follow all applicable electrical codes for your location.
• Follow proper grounding, shielding and noise protection practices as
described in this section.
• For all sensor and signal wiring use twisted-pair cable, 18 to 22 AWG
(0.82 mm 2 to 0.33 mm 2 ), with an overall braided shield, or twisted-
pair cable in rigid metal conduit.
• For AC mains supply wiring, use between 12 and 14 American Wire
Gauge (AWG) or equivalent metric between 3.3 mm
2
and 2.1 mm
2
.
• Use the conduit entry point closest to the connections you are making.
Do not add any additional conduit entry holes!
Figures 3-7. Conduit Entries.