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DIFFERENTIAL PRESSURE SWITCHES SERIES DA & DW
WEATHERPROOF AND INTRINSICALLY SAFE: MODELS DW
Versions: DW40, DW100 e DW160
A Low pressure connection
B High pressure connection
Versions: DW10
A Low pressure connection
B High pressure connection
For surface mounting use four screws M6 .
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.
MODEL CODE
4.
IDENTIFICATION PLATE AND MARKINGS
5.
SET POINT REGULATION
6.
SET POIT CALIBRATION
7.
MOUNTING AND CONNECTIONS
8.
INSTRUMENT PLUMBING
9.
SAFETY INTEGRITY LEVEL (SIL) INSTALLATION REQUIREMENTS
10.
PUTTING INTO OPERATION
11.
VISUAL INSPECTION
12.
FUNCTIONAL VERIFICATION
13.
STOPPING AND DISMOUNTING
14.
DISPOSAL
15.
TROUBLESHOOTING
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.
This document is the property of ALEXANDER WIEGAND SE &Co and may not be reproduced in any form, nor used for any purpose other than
that for which it is supplied.
INSTRUCTION MANUAL
C Cable entry
V Vents
Weight 6,2 kg (dimensions in mm)
C Cable entry
Weight 8,2 kg (dimensions in mm)
FLAMEPROOF: MODELS DA
Versions: DA40, DA100 e DA160
A Low pressure connection
B High pressure connection
Versions: DA10
A Low pressure connection
B High pressure connection
To authenticated document with certificate
NI-209WE
Rev. 8 12/16
C Cable entry
V Vents
Weight 7,2 kg (dimensions in mm)
C Cable entry
Weight 10 kg (dimensions in mm)
RELATED DOCUMENT
IECEx PRE 16.0068X
N°
IECEx PRE 16.0074X
N°
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Table of Contents
Related Manuals for WIKA SERIES DW
Summary of Contents for WIKA SERIES DW
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Page 1: Instruction Manual
NI-209WE INSTRUCTION MANUAL Rev. 8 12/16 DIFFERENTIAL PRESSURE SWITCHES SERIES DA & DW WEATHERPROOF AND INTRINSICALLY SAFE: MODELS DW FLAMEPROOF: MODELS DA Versions: DW40, DW100 e DW160 Versions: DA40, DA100 e DA160 A Low pressure connection C Cable entry V Vents A Low pressure connection C Cable entry V Vents... - Page 2 NI-209WE INSTRUCTION MANUAL Rev. 8 12/16 GENERAL NOTES The following table gives the relationship between hazardous areas, Atex Categories and Equipment Protection Level (EPL) 1.1 FOREWORD listed on the flameproof instrument nameplate The wrong choice of a models or a version, as well as the Categories incorrect installation, lead to malfunction and reduce instrument according to...
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Page 3: Preliminary Operations
NI-209WE INSTRUCTION MANUAL Rev. 8 12/16 6.2 CALIBRATION CIRCUIT AND OPERATIONS Fig. 3 - Calibration circuit Prepare the calibration circuit as indicated in Fig.3. The warning lamps should be connected to contact 1 or 2 in the NO or NC position according to the required contact action. Connection of C and NO terminals •... -
Page 4: Final Operations
NI-209WE INSTRUCTION MANUAL Rev. 8 12/16 6.6 FINAL OPERATIONS Fig. 6 – Calibration circuit for instrument with adjustable range less Disconnect the instrument from the calibration circuit. than 60 mbar 1.1.1 Weatherproof pressure switches (Models DW) Take the cover, ensure that the sealing gasket is correctly fitted into its seat, and insert the cover onto the case, with the blocking gap positioned in correspondence to the blocking bracket. -
Page 5: Electrical Connections
NI-209WE INSTRUCTION MANUAL Rev. 8 12/16 7.4 INSTRUMENTS WITH PROCESS CONNECTION Fig. 10 – Installation of the cable gland COATED WITH PTFE The pressure connection must be made in such a way that the part protruding from the instrument have to be used as a sealing ring. - Page 6 NI-209WE INSTRUCTION MANUAL Rev. 8 12/16 bayonet and tighten it to assure the instrument degree of protection The flameproof and the intrinsic safety instruments installed in explosive atmospheres for the combustible dust presence, must 7.6 GROUNDING CONNECTIONS be periodically cleaned up externally in order to avoid dust The instrument is supplied with two grounding connections, one accumulating.
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Page 7: 15. Troubleshooting
NI-209WE INSTRUCTION MANUAL Rev. 8 12/16 15. TROUBLESHOOTING IMPORTANT NOTE: operations involving replacement of essential components must be carried out at our workshop, especially for instruments with flameproof certificate; this is to guarantee the user the total and correct restoration of the product original characteristics. MALFUNCTION PROBABLE CAUSE REMEDY... - Page 8 NI-209WE INSTRUCTION MANUAL Rev. 8 12/16 Fig. 17 - Example of connections - Fig. 18 - Example of connections - 13 - Bracket for 2” pipe 1 - Three pieces fitting 5 - Three pieces fitting 9 - Blocking joint 2 - Three valves manifold 6 - Root valve with drain 10 - Curve...
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Page 9: Model Code
Silver + Argon sealed Gold Gold + Argon sealed Silver adjustable dead band Options Example: Intrinsic Safety execution WIKA Alexander Wiegand SE & Co. KG Alexander-Wiegand-Straße 30 63911 Klingenberg • Germany Tel. +49 9372 132-0 Fax +49 9372 132-406 info@wika.de...
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