Ametek Thermox WDG-V UOP, User Manual

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3-16 | Thermox WDG-V UOP IECEx/ATEX
WDG-V UOP Mains Supply Connections
Do not run control unit AC mains supply wiring in the same conduit
with other AC line power wires. By keeping this wiring separated,
you prevent transient signals from reaching the control unit.
The WDG-V UOP can operate using between 115 VAC, ± 10% or 230
VAC , ± 10% . There is no power switch or circuit breaker on the sensor, and
it must be protected by installing it on a circuit-protected line, maximum
15 amperes, with a switch or circuit breaker in close proximity to the con-
trol unit and within easy reach of an operator. Mark the switch or circuit
breaker as the control unit disconnecting device.
Mains supply connections to the control unit are as follows:
• L - Line connection
• N - Neutral connection (USA)
• Chassis Stud - Equipment ground (protective conductor)
Use the 1/2
"
conduit entry hole in the WDG-V UOP for AC mains supply wir-
ing. Use the chassis stud next to the 1/2
"
conduit entry hole for equipment ground
(protective conductor).
AC (L) and (N) markings are provided by the terminal block for connec-
tion of AC power. These markings are for reference purposes only, such as
for use on system wiring diagrams, etc. The system/product has or needs
no specific LINE or NEUTRAL connection for any function, safety or oth-
erwise. The (N) terminal is not internally grounded, nor needs to be. The
system will operate normally regardless of what AC input terminal (L or
N) the AC Line or Neutral is connected to, or, if there is a Neutral used at
all (i.e., 208 VAC US power connection).