Emerson World Class 3000 Bedienungsanleitung PDF herunterladen (Seite 3)

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(6) EXlSTlNG WESTlNGHOUSE/ROSEMOUNT SUPPLIED CABLE:

ON EARLIER INSTALLATIONS WESTINGHOUSE/ROSEMOUNT SUPPLIED A CABLE

BEIWEEN THE DIGITAL ELECTRONICS AND PROBE (MODEL 218).

THE GLANDS ON THIS CABLE - ALTHOUGH HAWKE GLANDS CERTIFIED Exd IIC

WERE NOT OF THE HAWKE BARRIE:R (STOPPER) GLAND, MPE 1cG653 VARIETY.

THESE GLANDS MUST NOT BE USED. ROSEMOUNT CAN SUPPLY A BARRIER GLAND

KIT TO REPLACE SUCH GLANDS. THE KIT (PART No. lUO3066GO7), COMPRISES

OF TWO BARRIER GLANDS COMPLETE WITH PUl-fY, CRIMPS AND AN INSTRUCTION

SHEET. PLEASE NOTE THAT YOU SHOULD USE ONLY PUTIY WHICH IS PLASTIC

& CAPABLE OF BEING MIXED. YOU SHOULD NOT USE CRYSTALISED OR HARD

PUI-I-Y.

(7) CABLE ANCHORAGE

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THIS APPARATUS DOES NOT INCLUDE ANY SPEClflC MtiNS FOR CABLE ANCHORAGE.

THE CABLE GLANDS CHOSEN FOT THE MAINS, PROBE, AND SIGNAL CABLES MUST

BE OF AMPE WHICH SUPPLY CABLE ANCHORAGE. THE BARRIER (STOPPER) GLAND

SUPPLIED BY ROSEMOUNT ASi.PART OF THE PROBE CABLE ASSEMBLY, WILL GIVE

SUCH CABLE ANCHORAGE.

(8) UNUSED CABLE ENTRY PORTS:

ALL CABLE ENTRY PORTS WHICH ARE UNUSED

ARE TO BE CLOSED OFF WITH THREADED PLUGS CERTlflED Exd IIC. THERE SHOULD

BE A MINIMUM OF 5 THREADS ENGAGED AND THE THREADS SEALED WITH

THREADLOCK (LOCKTlTE 271 OR IIQUILAVENT).

(9) NAMEPLATE (LABEL):

ENSURE THAT NAMEPLATE IS AT ALL TIMES VISIBLE.

AT INSTALLATION. ALLOWANCE MUST BE MADE FOR THIS.

(10) EARTHING OF THE APPARATUS:

THE APPARATUS HAS BEEN FITTED WITH BOTH

EXTERNAL AND INTERNAL EARTHING POINTS. ADEQUATE EARTH

CONNECTIONS

SHOULD BE MADE TO BOTH THESE POINTS.

(11) SHEET METALWORK PANELS.

THIS APPARATUS CONTAINS A NUMBER OF SHEET METALWORK PANELS FOR MOUNTING

THE PRINTER CIRCUIT BOARDS. BECAUSE THESE PANELS ARE IN CLOSE PROXIMIlY

TO THE WALLS OF THE FLAMEPROOF ENCLOSURE, IT WAS NECESSARY TO

PERFORATE THEM WITH HOLES h;ND SLOTS. THESE HOLES AND SLOTS PREVENT

PRESSURE PILING BETWEEN THE PANELS AND THE WALLS & LID OF THE

ENCLOSURE. DO NOT DO ANYTHING WHICH MIGHT OBSCURE THESE SLOTS & HOLES.

(12) LlFl-lNG AND CARRYING.

THE In3000 IS A HEAVY PIECE OF APPARATUS. LIFTING AND CARRYING PROCEDURES

SHOULD TAKE ACCOUNT OF THIS WEIGHT.

(13) CONNECTION TO HART OPTION.

HART IS A COMMUNICATIONS PROTOCOL WHICH ALLOWS REMOTE COMMUNICATION

WITH THE lFr3000 VIA THE 4-20mA OUTPUT. BECAUSE, ON THE IFT3000, THE

HART OPTION IS NOT PROTECTED BY ENERGY LIMITING BARRIERS. IT MUST NOT

BE INTERFACED FROM WITHIN THE HAZARDOUS AREA. THE 4-20mA CABLES SHOULD

BE ROUTED OUTSIDE THE HAZARDOUS AREA, AND THE CONNECTION MADE OUT

THERE. NOTE THIS IS THE CASE EVEN WHEN USING THE INTRINSICALLY SAFE

VERSION OF THE THE HANDHELD COMMUNICATOR. THE LIMITATION (ie, NO ENERGY

LIMITING BARRIER) LIES IN THE IFT3000 NOT IN THE HANDHELD UNIT.

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