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INSTRUCTION MANUAL

NI-221E

Rev. 1 11/02

DIAPHRAGM PRESSURE SWITCHES

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:SERIES MW EXPLOSIONPROOF: SERIES MA

Models: MW-MWH Models: MA-MAH-MAG

A = pressure attachment

B = cable entry

A = pressure attachment

B = cable entry

WEIGHT 1,8 kg dimensions in mm WEIGHT 3,2 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.

CONTENTS:

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 - DIAPHRAGM PRESSURE SWITCHES

INSTRUCTION MANUAL NI-221E Rev. 1 11/02 DIAPHRAGM PRESSURE SWITCHES All data, statements and recommendations supplied with this manual are based o

Seite 2

INSTRUCTION MANUAL NI-221E Rev. 1 11/02 1 GENERAL NOTES 1.1 FOREWORD The wrong choice of a series or a model, as well as the incorrect installati

Seite 3

INSTRUCTION MANUAL NI-221E Rev. 1 11/02 If the instrument has been ordered with a specific cali-bration, it is a good rule to check the calibra

Seite 4

INSTRUCTION MANUAL NI-221E Rev. 1 11/02 5.3.1 Weatherproof pressure switches (Series MW) Take the cover, ensure that the sealing gasket is correct

Seite 5

INSTRUCTION MANUAL NI-221E Rev. 1 11/02 9 FUNCTIONAL VERIFICATION This will be carried out according to the Client’s control procedures. Series MW

Seite 6

INSTRUCTION MANUAL NI-221E Rev. 1 11/02 ETTORE CELLA SPA Viale de Gasperi, 48 - Casella Postale (P.O. Box) 96 - I 20010 Bareggio (MILANO) ITALY Te

Verwandte Modelle: MA1 | MWB | MW1 |

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Inhaltsverzeichnis

Verwandte Modelle: MA1 | MWB | MW1 |

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