Emerson Rosemount 644h Instrukcja Obsługi Pobierz pdf (Strona 15)

2-5

Rosemount Inc

Head Mount Transmitter with DIN Plate Style Sensor

Refer to Volume 2 of the Rosemount Sensors Product Data Sheet (document

number 00813-0101-2654) for complete sensor and mounting accessory

information.

To complete the assembly, follow the steps described below.

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

tighten the thermowell before applying pressure.

2. Set the transmitter failure mode switch (see Figure 2-11 on page 2-11).

3. Assemble the transmitter to the sensor. Push the transmitter mounting

screws through the sensor mounting plate and insert the snap rings

(optional, part number 00644-4432-0001) into the groove of each transmitter

mounting screw.

4. Insert the transmitter-sensor assembly into the connection head. Thread the

transmitter mounting screw into the connection head mounting holes.

5. Assemble the extension to the connection head. Insert the assembly into

the thermowell.

6. Attach a cable gland into the shielded cable.

7. Insert the shielded cable leads into the connection head through the cable

entry. Connect and tighten the cable gland.

8. Connect the shielded cable leads to the transmitter power terminals. Avoid

contact with leads and terminals.

9. Install and tighten the connection head cover. Enclosure covers must be fully

engaged to meet explosion-proof requirements.

Figure 2-4. Typical Model 644H Transmitter Mounting Configuration Using Integral

Mount Sensor and Assembly

644-0000B04A

Model 644H

Transmitter

Integral Mount Sensor

with Flying Leads

Threaded Extension

Threaded Thermowell

Connection Head

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Emerson Rosemount 644h Instrukcja Obsługi Strona 15