© 2020 Baker Hughes Company. All rights reserved
.
=
Masoneilan SVI II AP Digital Positioner Quick Start Guide | 50
SVI II AP Setups
Control Systems using Explosion Proof or Conventional I/O
Systems must have a compliance voltage greater than 9 V at
20 mA including wiring losses. See “Determining an SVI
Positioner Compliance Voltage in a Control System” on
page
Typical Control Systems using Intrinsic Safety methods must
have a compliance voltage greater than 17.64 V.
Typical system setups are shown in Figure
53,
General Purpose and Explosion Proof (EEx d) Installation
Schematic and Figure
54, Intrinsically Safe
Installation Schematic. The SVI II AP digital valve positioner
can be located in a general-purpose or hazardous area
protected by Explosion Proof (EEx d) methods. Wiring
diagrams are generalized, actual wiring must adhere to
Electrical Installation section of manual and local electrical
codes. The use of a Handheld Communicator or a HART
®
modem is not permitted in the Hazardous Area protected by
Explosion Proof (EEx d) methods. In Figure
54 the
SVI II AP digital valve positioner is located in a hazardous area
that is protected by Intrinsically Safe wiring practices.
The SVI II AP requires an electrical input from a 4-20 mA
current source. The SVI II AP input signal can carry a HART
communication protocol signal from ValVue software and a
HART modem, or from a HART Hand Held Communicator.
Since the process control system, the source of the input
signal, is located in a non-hazardous location, setup requires
an intrinsic safety barrier be placed between the process
control system and the SVI II AP. If the SVI II AP is located in a
hazardous area with Intrinsically Safe protection a barrier is not
required for a flameproof installation. Alternatively the system
can be installed as Explosion Proof
⁄
flameproof.
Содержание Masoneilan SVI II AP Series
Страница 6: ...This page intentionally left blank ...
Страница 76: ...This page intentionally left blank ...
Страница 82: ...This page intentionally left blank ...
Страница 105: ...Masoneilan SVI II AP Digital Positioner Quick Start Guide 105 2020 Baker Hughes Company All rights reserved ...
Страница 106: ... 2020 Baker Hughes Company All rights reserved Masoneilan SVI II AP Digital Positioner Quick Start Guide 106 ...
Страница 108: ...This page intentionally left blank ...
Страница 122: ...This page intentionally left blank ...
Страница 123: ...This page intentionally left blank ...