705-5100-F21 datasheet(7/52 Pages) MAGNETROL

7 / 52 page

IEC61158 also supports the Fieldbus Intrinsically Safe

Concept (FISCO) model which allows more field devices in

a network. The FISCO model considers the capacitance and

inductance of the wiring to be distributed along its entire

length. Therefore, the stored energy during a fault will be

less and more devices are permitted on a pair of wires.

Instead of the conservative entity model, which only allows

about 90 mA of current, the FISCO model allows a maxi-

mum of 110 mA for Class II C installations and 240 mA

for Class II B installations.

FISCO certifying agencies have limited the maximum

segment length to 1000 meters because the FISCO model

does not rely on standardized ignition curves.

The Enhanced Eclipse Model 705 is available with entity IS,

FISCO IS, FNICO non-incendive, or explosion proof

approvals.

2.0

QuickStart Installation

The QuickStart Installation procedures provide the key

steps for mounting, wiring, and configuring the Eclipse

level transmitter. These procedures are intended for experi-

enced installers of electronic level measurement instruments.

See Complete Installation, Section 3.0, for detailed installa-

tion instructions.

WARNING:

The Model 7xD, 7xR or 7xT overfill probes should be

used for Safety Shutdown/Overfill applications. All

other Guided Wave Radar probes should be installed

so the maximum overfill level is a minimum of

6" (150 mm) below the process connection. This may

include utilizing a nozzle or spool piece to raise the

probe. Consult factory to ensure proper installation.

2.1

Getting Started

Before beginning the QuickStart Installation procedures,

have the proper equipment, tools, and information available.

2.1.1 Equipment and Tools

• Open-end wrenches or adjustable wrench to fit the process

connection size and type. Coaxial probe 11⁄2" (38 mm),

twin rod probe 17⁄8" (47 mm), transmitter

11⁄2" (38 mm). A torque wrench is highly desirable.

• Flat-blade screwdriver

• Cable cutter and 3⁄32" (2.5 mm) hex wrench

(Flexible probes only)

• Fieldbus-compatible power supply with proper termination

57-645 Eclipse Guided Wave Radar Transmitter - PROFIBUS PA™

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