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WIKA DC Series Instruction Manual

WIKA DC Series Instruction Manual

Compact diff. pressure switches

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COMPACT DIFF. PRESSURE SWITCHES SERIES DC & DE
WEATHERPROOF
SERIES DC
A High pressure connection
B Low pressure connection
WEIGHT 5,4 kg
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.
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.
INSTRUCTION MANUAL
Sfiati
vents
C Cable entry
dimensions in mm WEIGHT 5,4 kg
EXPLOSIONPROOF
SERIES DE
A High pressure connection
B Low pressure connection
RELATED DOCUMENT
To authentified document with certificate
N° CESI 02 ATEX 119
NI-223E
Rev. 2 11/02
Sfiati
vents
C Cable entry
dimensions in mm

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Summary of Contents for WIKA DC Series

  • Page 1 NI-223E INSTRUCTION MANUAL Rev. 2 11/02 COMPACT DIFF. PRESSURE SWITCHES SERIES DC & DE WEATHERPROOF EXPLOSIONPROOF SERIES DC SERIES DE Sfiati Sfiati vents vents A High pressure connection C Cable entry A High pressure connection C Cable entry B Low pressure connection B Low pressure connection WEIGHT 5,4 kg dimensions in mm WEIGHT 5,4 kg...
  • Page 2 NI-223E INSTRUCTION MANUAL Rev. 2 11/02 1 - GENERAL NOTES Fig. 1 - Explosionproof instruments plate 1.1 FOREWORD The wrong choice of a series or a model, as well as the incorrect installation, lead to malfunction and reduce instrument life. Fail- ure to follow the indications given in this manual can cause dam- age to the instrument, the environment and persons.
  • Page 3 NI-223E INSTRUCTION MANUAL Rev. 2 11/02 Fig. 2 - Electrical connections and adjustament screws with one or two contacts instruments 1 - Adjustment screw 2 - Screw for fixing the adjustement 3 - Terminal block for the first microswitch 4 - Hole for test plug 5 - Terminal block for the first microswitch 6 - Internal earth screw 7 - Pre-insulated thimbles...
  • Page 4 NI-223E INSTRUCTION MANUAL Rev. 2 11/02 Increase gradually pressure in the circuit up to the desired mi- Carry out the connection using a flexible tube in such a way that variations in the temperature of the tube itself do not force the in- croswitch set point value (P strument connections.
  • Page 5 NI-223E INSTRUCTION MANUAL Rev. 2 11/02 CAUTION: fittings used for the electrical connection of the pressure switch Series DE (explosionproof) shall be certified to Standards EN 50014 and 50018, and shall guarantee instrument degree of protection (IP65). 8 - PUTTING INTO OPERATION Check that there is no power in the lines.
  • Page 6 NI-223E INSTRUCTION MANUAL Rev. 2 11/02 10 - TROUBLESHOOTING IMPORTANT NOTE: operations involving replacement of essential components must be carried out at our workshop, especially for instruments with explosionproof certificate; this is to guarantee the user the total and correct restoration of the product original characteristics..
  • Page 7 NI-223E INSTRUCTION MANUAL Rev. 2 11/02 WEATHERPROOF EXPLOSIONPROOF Fig. 6 - Example of connections Fig. 7 - Example of connections Fig. 8 - Example of mounting - Fig. 9 - Level check of tanks under pressure – Surface mounting Montaggio a parete 2”...

This manual is also suitable for:

De seriesNi-223e