Dynisco TPG553 Руководство по эксплуатации - Страница 4

Просмотреть онлайн или скачать pdf Руководство по эксплуатации для Измерительные приборы Dynisco TPG553. Dynisco TPG553 11 страниц. Melt pressure gauges

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Mounting Hole Dimension Check

The proper fit between the pressure probe and mounting well must

be maintained throughout the service life of the gauge and should be

checked periodically. A gauge plug (P/N 200908 - Figure 3) is

available which can be used to check the hole as follows:

1. Referring to Figure 4, paint the clean dry surfaces of the gauge

plug as shown with machinists ink, such as Dykem steel blue

(Note 1).

2. To prevent galling, lubricate the threads with a high temperature

anti-seize compound.

3. Insert the plug and torque lightly until seated in the well.

4. Remove and carefully examine the plug. Except for the 45°

chamfered surface, the Dykem should be intact. If marred, it is an

indication of some type of mechanical interference which must be

corrected before the transducer is installed.

5. Typical interference problems are:

Burrs or chips in the hole ............................... Remove

Undersized dimension .................................... Remachine

Eccentric threads/hole ................................... Remachine

Poor surface finish .......................................... Remachine

Frozen plastic on seating surfaces ................... Remove

Frozen plastic in hole ...................................... Remove

Fig. 3

Fig. 4

DYNISCO PG500 Series