Wika BWX User Manual download pdf

INSTRUCTION MANUAL

NI-222E

Rev. 1 12/02

BOURDON TUBE 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 BW EXPLOSIONPROOF: SERIES BAX

A pressure attachment

B cable entry

A pressure attachment

B cable entry

WEIGHT 2 kg dimensions in mm WEIGHT 3,7 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:

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.

Summary of Contents

Page 1 - NI-222E

INSTRUCTION MANUAL NI-222E Rev. 1 12/02 BOURDON TUBE PRESSURE SWITCHES All data, statements and recommendations supplied with this manual are based

Page 2

INSTRUCTION MANUAL NI-222E Rev. 1 12/02 1 - GENERAL NOTES 1.1 FOREWORD The wrong choice of a series or a model, as well as the incorrect installa

Page 3

INSTRUCTION MANUAL NI-222E Rev. 1 12/02 Fig. 2 - Electrical connections and adjustment screws One contact instruments Two contact instruments M

Page 4

INSTRUCTION MANUAL NI-222E Rev. 1 12/02 • If the circuit is open at the working pressure, the switch closes the circuit as the pressure decrease

Page 5

INSTRUCTION MANUAL NI-222E Rev. 1 12/02 CAUTION: fittings used for the electrical connection of the pressure switch Series BAX (explosionproof) s

Page 6

INSTRUCTION MANUAL NI-222E Rev. 1 12/02 10 - TROUBLESHOOTING IMPORTANT NOTE: operations involving replacement of essential components must be car

Page 7

INSTRUCTION MANUAL NI-222E Rev. 1 12/02 ETTORE CELLA SPA Viale de Gasperi, 48 - Casella Postale (P.O. Box) 96 - I 20010 Bareggio (MILANO) ITALY Te

Wika BWX User Manual

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Wika BWX User Manual

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