Checking The Air Supply; Wiring The Svi Ii Esd - GE Masoneilan SVI II ESD Installation And Maintenance Manual

Checking the Air Supply

Use this procedure to check the air supply.
1. Turn on the air supply.
2. Adjust the filter regulator.
3. Supply pressure must be a minimum of 10 psi greater than the spring range of the
actuator but can not exceed the rated actuator pressure. Refer to the valve or actuator
instruction manual.
4. Inspect the tubing connections between the filter-regulator and the PST controller for
leaks.
5. Verify that the tubing is not bent or crushed.
6. Verify that all fittings are leak tight.
For detailed information on pneumatic connections refer to "Pneumatic Connections" on
page 71.

Wiring the SVI II ESD

There are two components to wiring the SVI II ESD; making an electrical connection for power
and making a local control loop connection for HART
Electrical Connection Guidelines
When making the SVI II ESD electrical connections, follow these guidelines:
1. The SVI II ESD device is available in two control signal configurations: 4-20 mA or
0/24 VDC.
2. Provide sufficient electrical isolation between adjacent signal lines and between signal
lines and ground for all wiring.
3. Use stranded 14 to 22 AWG (or equivalent gauge and flexibility).
4. Use conduit sealant to prevent condensation from entering the enclosure and, in Class 1
Div. 2 conditions to prevent hazardous gases and vapors from migrating through the
conduit to the control room or an open ignition source.
5. Wire according to the National Electrical Code (ANSI-NFPA 70) or other applicable local
codes.
6. The terminal clamps are designed for one wire only; DO NOT attempt to terminate
multiple wires into one terminal.
© 2016 General Electric Company. All rights reserved.
Do not use Teflon pipe seal tape. The Teflon tape can shred into
NOTE
particles that are harmful to the pneumatic components.
®
communication.
Masoneilan SVI II ESD Installation and Maintenance Manual
| 73
=