Ametek Thermox TM2000, User Manual

Page: 41 / 170

Installation and Start-Up | 3-19
• Use the conduit entry point closest to the connections you are making.
Do not add any additional conduit entry holes!
Control Unit AC Mains Supply Connections
Follow general grounding and shielding requirements for all wiring
as described in the “General Wiring Requirements” section of this
Wiring section.
Do not run control unit AC mains supply wiring in the same conduit
with other AC mains supply wiring. By keeping this wiring separate,
you prevent transient signals from reaching the control unit.
The Series 2000 control unit can operate using between 95-to-230 volts AC,
47-to-63 Hertz. There is no power switch or circuit breaker on the control
unit. It must be protected by installing it on a circuit-protected line with
maximum 15 amperes, a switch or circuit breaker in close proximity to
the control unit, and within easy reach of an operator. Mark the switch or
circuit breaker as the control unit disconnecting device.
Power connections to the control unit are as follows:
Line Line connection
Neutral Neutral connection (USA)
Chassis Stud Equipment ground (protective conductor)
Use the ½” conduit entry hole in the control unit for AC mains supply
wiring. Use the chassis stud next to the ½” conduit entry hole for equip-
ment ground (protective conductor).
SENSOR TYPE
# of TWISTED
PAIRS NEEDED
GAUGE WIRE
TM2000 4
22 (to 250 ft)
18 (250 to 1000 ft)
Figure 3-17.
Recommended sensor
cable wiring (minimum
acceptable grades).