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INSTRUCTION MANUAL

NI-223E

Rev. 2 11/02

COMPACT DIFF. PRESSURE SWITCHES SERIES DC & DE

All data, statements and recommendations supplied with this manual are based on information believed by us to be reliable. As the

conditions of effective use are beyond our control, our products are sold under the condition that the user himself evaluates such

conditions before following our recommendations for the purpose or use foreseen by him.

The present document is the property of ETTORE CELLA SPA and may not be reproduced in any form, nor used for any purpose

other than that for which it is supplied.

WEATHERPROOF EXPLOSIONPROOF

SERIES DC SERIES DE

Sfiati

vents

Sfiati

vents

A High pressure connection

B Low pressure connection

C Cable entry A High pressure connection

B Low pressure connection

C Cable entry

WEIGHT 5,4 kg dimensions in mm WEIGHT 5,4 kg dimensions in mm

NOTE: dimensions and weights are not binding unless released on certified drawings.

CAUTION

• Before installing, using or carrying out maintenance on the instrument it is necessary to read and understand the indications given

in the attached Instruction Manual.

• The instrument must only be installed and maintained by qualified personnel.

• INSTALLATION IS TO BE CARRIED OUT ONLY AFTER CHECKING THAT INSTRUMENT CHARACTERISTICS ARE

CONSISTENT WITH PROCESS AND PLANT REQUIREMENTS

• The functional features of the instrument and its degree of protection are shown on the identification plate fixed to the case.

CONTENUTO

1 - GENERAL NOTES

2 - OPERATING PRINCIPLE

3 - IDENTIFICATION PLATE AND MARKINGS

4 - SET POINT REGULATION

5 - SET POINT CALIBRATION

6 - MOUNTING AND CONNECTIONS

7 - INSTRUMENT PLUMBING

8 - PUTTING INTO OPERATION

9 - FUNCTIONAL VERIFICATION

10 - TROUBLESHOOTING

11 - STOPPING AND DISMOUNTING

12 - DEMOLITION

SAFETY INSTRUCTIONS FOR USE IN HAZARDOUS ATMOSPHERES.

RECOMMENDATIONS FOR PRESSURE SWITCH SAFE USE.

Inhaltsverzeichnis

Seite 1 - NI-223E

INSTRUCTION MANUAL NI-223E Rev. 2 11/02 COMPACT DIFF. PRESSURE SWITCHES SERIES DC & DE All data, statements and recommendations supplied with

Seite 2

INSTRUCTION MANUAL NI-223E Rev. 2 11/02 1 - GENERAL NOTES 1.1 FOREWORD The wrong choice of a series or a model, as well as the incorrect instal

Seite 3

INSTRUCTION MANUAL NI-223E Rev. 2 11/02 Fig. 2 - Electrical connections and adjustament screws with one or two contacts instruments 1 - Adjus

Seite 4

INSTRUCTION MANUAL NI-223E Rev. 2 11/02 Increase gradually pressure in the circuit up to the desired mi-croswitch set point value (Pi). If the sw

Seite 5

INSTRUCTION MANUAL NI-223E Rev. 2 11/02 CAUTION: fittings used for the electrical connection of the pressure switch Series DE (explosionproof) sha

Seite 6

INSTRUCTION MANUAL NI-223E Rev. 2 11/02 10 - TROUBLESHOOTING IMPORTANT NOTE: operations involving replacement of essential components must be carr

Seite 7

INSTRUCTION MANUAL NI-223E Rev. 2 11/02 ETTORE CELLA SPA Viale de Gasperi, 48 - Casella Postale (P.O. Box) 96 - I 20010 Bareggio (MILANO) ITALY Te

Verwandte Modelle: DC

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Inhaltsverzeichnis

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