Emerson Process Management 5300 manual Changing the Probe, Transmitter Head Nut Process Seal Probe

Reference Manual

00809-0100-4530, Rev BA July 2009

Rosemount 5300 Series

Changing the Probe

Transmitter

head

Nut

Process

seal

Probe

1. Loosen the nut.

2. Remove the transmitter head from the old probe.

3.On the new probe, make sure that the protection plug is removed and the upper surface of the Process Seal is clean. Also make sure that the spring-loaded pin at the center of the Process Seal is properly inserted.

4.Mount the transmitter head on the new probe.

5.Fasten the nut again.

6.If the new probe is not of the same type as the old one, update the transmitter configuration by setting the Probe Type parameter to the appropriate value:

HART Fast Key sequence [2, 1, 2] or

in RRM, click the Tank icon in the Device Config/Setup toolbar.

7.Measure the Probe length and enter the measured value: HART Fast Key sequence [2, 1, 2],

or

in RRM, click the Tank icon in the Device Config/Setup toolbar, and select the Probe tab in the Tank window.

8.In certain cases, a fine tune by using the Trim Near Zone function is necessary.

In RRM Guided Setup > Device specific setup can be seen if it is needed.

For 375, use HART Fast Key Sequence [2, 1, 7, 2].

When using the Trim Near Zone function, product level in the vessel must be lowered beneath the Near Zone to get precise measurement data (see Figure 7-23).

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