Baker Hughes Masoneilan SVI II ESD Quick Start Manual page 45

Powering Up the ASD Configuration
The ASD, or Analog Safety Demand, configuration uses a 4 - 20mA current source for power.
CAUTION
To power up the ASD configuration of the SVI II ESD:
1. Loosen the four (4) cover screws and remove the cover of the SVI II ESD.
2. Connect the +⁄- terminals of the current source to the 4 - 20mA IN connector (on
the terminal board). The current source + must connect to the terminal board
connector +, and the same for -. See Figure 15 on page 49.
3. Reinstall the cover and display.
4. Adjust current to 20 mA. 
On initial power up of a newly installed SVI II ESD, the positioner starts up in SETUP
mode using the default factory-installed instrument parameters. Once calibrated
and configured and set to NORMAL, the positioner cycles through the NORMAL
cycle menu and the following values appear:
5. Proceed to Configuration on "Configuration" on page 62 and "Calibration" on
page 66.
© 2018 Baker Hughes, a GE company, LLC. All rights reserved.
Use of a low impedance voltage source damages the SVI II ESD.
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 Volts.
PRES: Pressure - unit of measurement and value
SIGNAL
POS (Position) 
An exclamation point (!) appears in the display's top left corner to indicate
that further instrument status is available.
Masoneilan SVI II ESD Quick Start Guide =| 45