ABB mFLO Series Instrukcja uruchamiania - Strona 6

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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.

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 from the

FLO enclosure 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 J9. (See Figure 5)

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

Before making connections to terminal block, remove spade lugs if

attached and trim wire ends back 1/4". Remove J9 terminal block

from the

6. Loosen terminal block securing screws, insert wire, and then

retighten. Reinstall terminal block with wires attached.

FLO's main electronics board. (See Figure 5)

FLO's RTD connector as follows: