© 2018 Baker Hughes, a GE company, LLC. All rights reserved.
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BHGE
Checking the Electronic Module Connections
WARNING
Do not remove the instrument cover or connect to an electrical
circuit in a Hazardous Area unless the power is disconnected.
All connections to electronic module in the SVI II ESD are made through the terminal board. There
are three versions of the terminal board, dependent on the configuration you have; ASD, DSD, or
A/DSD. The SVI II ESD terminal board has a terminal block with cage clamp connectors. Confirm
that all applicable connections to the electronics module connectors are correct. Not all options
are available for every model. Refer to Table 5 for available functionality.
(1) Latching is software configurable.
(2) 1 - 5 VDC variable is sent using HART
®
command #3 as the variable TV.
Table 5: SVI II ESD Models and Functionality
I/O ON SVI II ESD
Usage
SVI II ESD
ASD Analog Safety
Demand
SVI II ESD
DSD Discrete Safety
Demand
SVI II ESD
A/DSD Analog
Power with
Discrete Safety
Demand
Analog In (4-20mA)
Safety Trip
HART
®
+ Analog PST
Not Used
Device Power +
Analog PST + HART
®
ESD In (0-24 VDC)
Not Used
Safety Trip
HART
®
Safety Trip Signal
SW1 (1A, 24 VDC)
Not Configurable
Not Configurable
Not Configurable
SW2 (1A, 24 VDC)
Configurable Status
Configurable Status
Configurable Status
DI (switch input)
Unlatch (1)
Unlatch (1)
Unlatch (1)
PV (1-5 VDC)
Read Tight Shutoff
Flow (2)
Read Tight Shutoff
Flow (2)
Read Tight Shutoff
Flow (2)
Local LCD / Buttons
ESD Status Local PST ESD Status Local PST ESD Status Local
PST
