Ronan X55-600 Series Manuale Utente Scaricare il pdf (Pagina 8)

eventually cause corrosion damage to

the I/P.

Coalescing filters is an inexpensive way to

help prevent I/P malfunctions or failures.

These filters remove particles and moisture

from air lines.

2) Oil in the supply air usually is from the

main compressor. Oil can clog the small

nozzles and disturb the normal opera-

tion of the I/P-converter. The result is

poor control or in the worst case, failure.

3) Particles in the air usually occur

because of corrosion. Dirt and particles

can block the small nozzles of the I/P

converter.

To en s ur e no rma l op er at io ns , we r ec omm e nd

that a water separator and a 5 micrometer fil-

ter are mounted as close to the I/P as possi-

ble. If oil is present, an oil separator should

be installed as well.

We recommend that the working air is clean,

dry and free of moisture, water, oil, particles

and other contaminants, in accordance with

the international standard ISA S7.3-181.

to increase or counterclockwise to

decrease the setting to within the recom-

mended range.

10. Repeat steps eight and nine until satis-

fied.

11. Remove calibration wires. Reinstall gray

cover from step 6.

12. Reattach calibration wires and do one

final zero/span and power failure check.

13. Reattach field wiring, NEMA 4, explo-

sion-proof covers (if appropriate).

Air Quality Recommendations

Poor air quality is one of the causes of pre-

mature functionally problems with pneumatic

and electro-pneumatic equipment.

1) Water in the supply air is a natural

occurrence. When the air cools in pipes,

etc., the moisture condenses and

becomes liquid water. This water will

6

Printed in the U.S.A.

Figure 1.

–+G

Input

Ter mi na ls

Air

Inlet

Air

Outlet

0 mA

Air Pin

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 23 24

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