Emerson 644 Manual do Utilizador descarregar pdf (Página 15)

Reference Manual

00809-0400-4728, Rev AA

June 2011

2-5

Rosemount 644

Typical North American

Installation

Head Mount Transmitter with Threaded Sensor

1. Attach the thermowell to the pipe or process container wall. Install

and tighten thermowells before applying process pressure.

2. Attach necessary extension nipples and adapters to the thermowell.

Seal the nipple and adapter threads with silicone tape.

3. Screw the sensor into the thermowell. Install drain seals if required for

severe environments or to satisfy code requirements.

4. Pull the sensor wiring leads through the universal head and

transmitter. Mount the transmitter in the universal head by threading

the transmitter mounting screws into the universal head mounting

holes.

5. Mount the transmitter-sensor assembly into the thermowell. Seal

adapter threads with silicone tape.

6. Install conduit for field wiring to the conduit entry of the universal

head. Seal conduit threads with silicone tape.

7. Pull the field wiring leads through the conduit into the universal head.

Attach the sensor and power leads to the transmitter. Avoid contact

with other terminals.

8. Install and tighten the universal head cover. Enclosure covers must

be fully engaged to meet explosion-proof requirements.

A = Threaded Thermowell D = Universal Head

B = Threaded Style Sensor E = Conduit Entry

C = Standard Extension

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 97 98

Sem comentários

Emerson 644 Manual do Utilizador Página 15