ABB 2600T-Serie Bedienungsanleitung Seite 9

3.11 Wiring
Follow these steps to wire the transmitter:
— Remove the cap from one of the two electrical connection
ports located at both sides in the upper part of the
transmitter housing.
— These connection ports have a 1/2 inch internal NPT
threads. Various adaptors and bushings can be fitted to
these threads to comply with plant wiring (conduit)
standards.
— Remove the housing cover of "field terminals", side. In an
Explosion-Proof/Flame-Proof installation, do not remove
the transmitter covers when power is applied to the unit.
— Run wiring through the open port and connect the
positive lead to the + terminal, and the negative lead to
the – terminal.
Important. Do not connect the power across the Test terminals.
Power could damage the test diode in the test connection.
— Plug and seal the electrical ports. Make sure that when
the installation has been completed, these openings are
properly sealed against entry of rain and corrosive vapors
and gases. In particular, for Ex-d (Explosion Proof)
installation, plug the unused opening with a plug suitable/
certified for explosion containment.
— If applicable, install wiring with a drip loop. Arrange the
drip loop so the bottom is lower than the conduit
connections and the transmitter housing.
— Put back the housing cover, turn it to seat O-ring into the
housing and then continue to hand tighten until the cover
contacts the housing metal-to-metal. In Ex-d (Explosion
Proof) installation, lock the cover rotation by turning the
set nut (use the 2 mm Allen key supplied with the
instrument).
Figure 5: 266 HART terminal block
Figure 6: 266 PROFIBUS PA / FOUNDATION Fieldbus terminal block
2600T Series Pressure transmitters | SOI/266-XC Rev. D 9
3 Installation