Connecting The Tubing And Air Supply - GE SVI II AP Quick Start Manual

Connecting the Tubing and Air Supply

The last step in hardware installation for the SVI II AP is to connect the air supply to the positioner.
This section describes the process for connecting the tubing and air supply to a single and double
acting positioner.
WARNING
1. Install the tubing to the air supply port S
2. For a:
3. Air supply:
NOTE
Dew Point
Particulate Matter
Oil Content
Contaminants
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Isolate the valve from the process and disconnect air tubing from
the positioner. Disconnect air fully to avoid injury or process
damage.
Single acting actuator: Pipe the outbound air from the output pressure port

I (arrow only for High Flow) to the actuator.
Double acting actuator: Pipe output pressure port one
the actuator and output pressure port two
actuator.
Supply pressure for single acting SVI II and AP High Flow:
20 -100 psi (1.4 - 6.9 bar) (138 - 690 kPa)
Supply pressure for double acting SVI II AP:
25 - 150 psi (1.73 - 10.4 bar) (172.4 - 1034 kPa)
Minimum tubing diameter 1⁄4" (6 mm x 4 mm)
The SVI II AP Digital Valve Positioner is designed to operate with
clean, dry, oil-free, instrument grade air to ANSI-ISA-57.3 1975
(R1981) or ISA-S7.3-1975 (R1981) or with clean, dry, oil-free sweet
natural gas supply ((H
models SVI II AP/SD through SVI II AP/AD).
Table 5: Air Supply Requirements
At least 18° F (-7° C) below minimum anticipated ambient
temperature
Filtered to 5 microns
Less than 1 ppm w/w
Free of all corrosive contaminants

(arrow only for High Flow).
S content not to exceed 20 ppm) (SVI II AP
2
. Masoneilan SVI II AP Digital Positioner Quick Start Guide =| 33

I for one side of

II for the other side of the