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Reference Manual
00809-1600-4530, Rev AA
Section 6: SIS Installations
March 2015
SIS Installations
Section 6 SIS Installations
Installation in SIS applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 35
Configuring in SIS applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 36
SIS operation and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 37
6.1 Installation in SIS applications
The device should be installed and configured as a level sensing device per manufacturer’s
instructions. The materials must be compatible with process conditions and process fluids. No
special installation is required in addition to the standard installation practices outlined in this
manual.
The loop must be designed so that the terminal voltage does not drop below the minimum
input voltage when the transmitter output is 22.5 mA. See values in Table 6-1.
It is assumed that the personnel installing, configuring, and operating the system have the
knowledge equal or greater than that of a qualified instrument technician familiar with
safety-related systems, process control applications, and general instrument use.
Table 6-1. Minimum Input Terminal Voltage (U
i
) at Different Currents
Note
The Rosemount 5300 Series Transmitter is not safety-rated during maintenance work,
configuration changes, multidrop, loop test, or other activity that affects the safety function.
Alternative means should be used to ensure process safety during such activities.
Hazardous approval
Current
3.60 mA 3.75 mA 21.75 mA 22.50 mA
Minimum input voltage (Uh
i
)
Non-Hazardous installations and
intrinsically safe installations
16 Vdc 16 Vdc 11 Vdc 11 Vdc
Explosion-proof/flameproof
installations
20 Vdc 20 Vdc 15.5 Vdc 15.5 Vdc