ABB Totalflow X Series Startup Manual page 6

Installing and Wiring RTD and Probe
The RTD measures flowing gas temperature. Procedures presented in
this section enable the user to install the RTD into the meter run and wire
leads to the main electronics board. This procedure is for the XFC; the
XRC does not have RTD inputs.
Totalflow Materials Supplied
♦ RTD Probe with 10' of cable. Optional lengths 15', 25', 30', 40',
and 50'.
♦ One (1) thermowell with ¾" NPT threads. Optional threads are
½" and 1".
♦ Nylon tie wraps
Customer Materials Supplied
•
Customer must specify or provide Thermowell "U" length.
•
Teflon tape
1. Install thermowell into meter run.
2. Using snap ring pliers, adjust probe length
so that it is spring loaded against bottom
of thermowell.
3. Remove one of the hole plugs and install
cord connector. Remove nut, sealing ring
and rubber grommet from cord connector.
Slide nut, sealing ring and grommet over
RTD cable and insert cable through body of cord connector. Allow
enough cable to extend into unit for connecting wires to RTD
termination block J7.
4. Secure the cable with the grommet, sealing ring and nut.
Note: Charging source and Power should be removed from unit
before performing any field wiring.
5. Connect RTD probe to the XFC's RTD connector as follows: Before
making connections to terminal block, remove spade lugs if attached
and trim wire ends back 1/4". Remove J7 terminal block from the
XFC main electronics board. (See Figure 5)
6. Loosen terminal block securing screws, insert wire and then
retighten. Reinstall terminal block with wires attached.
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