Masoneilan SVI II AP Installation and Maintenance ... - GE Energy

GE Oil and Gas
SVI II AP Instruction Manual
Powering Up the SVI II AP
WARNING
This process can cause the valve to move. Before proceeding
be sure the valve is isolated from the process. Keep hands
clear from moving parts.
NOTE
When an SVI II AP is turned on it is advisable to apply the air
supply before applying the electrical input signal.
CAUTION
Use of a low impedance voltage source damages the SVI II
AP. The SVI II AP input must be a current controlled source.
The SVI II AP will not function normally if connected directly to
a voltage source. However, direct connection to a current
source of up to 30 V will not the damage the SVI II AP. A
proper current source explicitly enables adjustment of the
current in mA, not V.
To power up the SVI II AP:
1. Loosen the four (4) cover screws and remove the SVI II AP cover.
2. Connect the +⁄- terminals from the SVI II AP to the current source. Connect + to + and
- to - (Figure 50 on page 66).
3. Reinstall the cover and display.
4. Adjust current to 12 mA. On initial power up of a newly installed SVI II AP, the
positioner starts up in NORMAL mode and is operational in the default factory
configuration. The positioner cycles through the NORMAL cycle menu and the
following values appear:
PRES: (Pressure - unit of measurement and value)
SIGNAL
POS (Position)
An exclamation point (!) in the top left corner of the display window indicates that
there is further instrument status available.*
5. Proceed to Calibration and Configuration.
* For firmware version 3.2.1, the supply pressure appears on the LCD. Additionally, Stops
results and Autotune results, stay displayed until cleared.
NOTE
If the SVI II AP is specified without local pushbuttons and
display, local operation is not available. Configure and
calibrate with ValVue or a Hand Held HART Communicator.
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