Masoneilan SVI3 Installation and Maintenance Manual
=
| 91
© 2021 Baker Hughes Company. All rights reserved.
HART
®
Command #3 Mapping
For Single Acting.
Primary Value - Valve Position
Secondary Value - Actuator Pressure
Tertiary Value - Supply Pressure
Table 12: Operational Specifications (Continued)
Table 13: Input Signal, Power, and Display Specifications
Electrical entries
Two 1/2" NPT Female Ports
Power Supply
Loop powered from 4 - 20 mA control signal
Valve Setpoint
4 - 20 mA. 450 Ohms input resistance
Compliance Voltage Rating
9.0 V at 20 mA, 11.0 V at 4.0 mA
Minimum Current Signal to Start Up
3.2 mA
Impedance Range
Low: 450 Ohms; High: 2750 Ohms
Minimum Input Span for Split Range Opera-
tion
5 mA
Upper Range Value for Split Range Operation
Between 8 and 20 mA - Minimum input span > 5mA
Lower Range Value for Split Range Operation
Between 4 and 14 mA - Minimum input span > 5mA
Wire Size
• 4-20 mA Input Terminals: 22 AWG to 12 AWG (4
mm
2
to .34 mm
2
)
• Options Terminal Connections: 26 AWG to 14 AWG
(2.5 mm
2
to .14 mm
2
)
Wiring must be rated for at least 5°C above the highest
expected ambient temperature.
Strip Length
Main Terminal Connections : 1/4 inch (6.35mm)
Options Module Connections: 1/6 inch (4.08mm)
Digital Communication
HART
®
Communication protocol revision 7
Local Display Liquid Crystal (optional)
LCD, operable in all certified areas per device label, two
lines of nine alphanumeric characters.
Display may become slow or unreadable below 0°C.
Display is shutdown at -20°C.
Push Buttons
External, Four, push buttons. operable in all certified areas
per device label
