Air Supply Quality (Recommended); Tubing Connections; Port Locations - ABB AV1 Operating Instructions Manual

Air Supply Quality (Recommended)

Tubing Connections

VIE W W ITH G AG E
B L O C K (AV ?? ?3 ?? ?)
Positioners equipped with manifolds have three secondary filters
as part of the unit. If the filters become clogged, they can be
cleaned (by removing and reverse flushing with air or liquid) or
replaced (refer to Table
manifold filter replacement procedures.
For long-term, trouble free operation, it is recommended that the
supply air be of instrument quality and conform to the ANSI/
ISA-7.0.01-1996 standard that includes the following:
The pressure dew point as measured at the dryer outlet shall
•
o
be at least 10 C (18
which any part of the instrument air system is exposed. The
pressure dew point shall not exceed 4
sure.
The oil content should be as close to zero as possible and,
•
under no circumstances, shall it exceed one (1) ppm w/w or
v/v.
Instrument air should be free of corrosive contaminants and
•
hazardous gases, which could be drawn into the instrument air
supply.
In addition, the particle size in the supply line should not be
greater that 3.0 microns.
1. Connect the required air supply to connection S (Fig. 3-9).
NOTE: Use liquid or paste pipe sealant to seal the connection.
Maximum torque for ¼-NPT fittings is 13.6 Nm (10 ft-lbs).
G AG E
P O RT S
V IE W W ITH M A N IFO L D
(AV ? ?? 1? ? ? O R
AV ? ?? 2? ?? )
Figure 3-9. Port Locations
INSTALLATION
1-7 for kit number). Refer to
o
F) below the minimum temperature to
o
C (39
G AG E
PO RT S
C O N D U IT
C O N N EC T IO N
V IE W W ITH O U T
M A N IF O LD
(AV ? ?? 0? ? ?)
TUBING CONNECTIONS
Section 7 for
o
F) at line pres-
T 00 80 6 A
3 - 9