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GE Oil & Gas
Operational Checkout
The operational checkout of the SVI II AP consists of:
Connecting the SVI II AP to a current source
Checking the pushbutton locks
Powering up the SVI II AP
Connecting to the Current Source
Connect to a DC mA current source then check and configure with the local display and push-
buttons, if so equipped. The following section describes configuration and calibration with the
optional local display and pushbuttons. If the SVI II AP is not equipped with local display use Val-
Vue Lite and a PC with a HART
®
modem or a HART
®
Handheld Communicator.
NOTE
When an SVI II AP is turned on it is advisable to apply the air
supply before applying the electrical input signal.
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 will damage the SVI II AP.
The current source must be a true high impedance current
limiting device. A proper current source explicitly enables
adjustment of the current in mA, not V.