ATEX Approval

ATEX Approval
EC-Type Examination
Equipment and protective systems intended for use in
potentially explosive atmospheres - Directive 94/9/EC
EC-Type Examination Certificate Number: KEMA 03ATEX2402 X
Differential Pressure Switch, Model 1950G
Dwyer Instruments, Inc.
102 Indiana Highway 212, Michigan City, IN 46360, USA
This equipment and any acceptable variation thereto is specified in the schedule to this certificate and the
documents therein referred to.
DEKRA Certification B.V., notified body number 0344 in accordance with Article 9 of the Council Directive 94/9/EC
of 23 March 1994, certifies that this equipment has been found to comply with the Essential Health and Safety
Requirements relating to the design and construction of equipment and protective systems intended for use in
potentially explosive atmospheres given in Annex II to the directive.
Issue Number: 5
The examination and test results are recorded in confidential test report number NL/DEK/ExTR11.0108/01.
Compliance with the Essential Health and Safety Requirements has been assured by compliance with:
EN 60079-0 : 2012 + A11 : 2013
EN 60079-1 : 2007
If the sign ”X” is placed after the certificate number, it indicates that the equipment is subject to special conditions
for safe use specified in the schedule to this certificate.
This EC-Type Examination Certificate relates only to the design, examination and tests of the specified equipment
according to the Directive 94/9/EC. Further requirements of the directive apply to the manufacturing process and
supply of this equipment. These are not covered by this certificate.
The marking of the equipment shall include the following:
II 2 G
Ex d IIB +H2 T6 Gb
This certificate is issued on 30 June 2015 and, as far as applicable, shall be revised before the date of cessation of
presumption of conformity of (one of) the standards mentioned above as communicated in the Official Journal of
the European Union.
DEKRA Certification B.V.
R. Schuller
Certification Manager
Integral publication of this certificate and adjoining reports is allowed. This Certificate may only be reproduced
in its entirety and without any change.
DEKRA Certification B.V. Meander 1051, 6825 MJ Arnhem P.O. Box 5185, 6802 ED Arnhem The Netherlands
T +31 88 96 83000 F +31 88 96 83100 Registered Arnhem 09085396
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to EC-Type Examination Certificate KEMA 03ATEX2402 X
Issue No. 5
The Differential Pressure Switch, Model 1950G is a differential pressure-operated switch in a diecast aluminium enclosure. The diaphragm and the switch are located in separate partitions of the
unit. They are separated by a continuous metal wall. The movement of the diaphragm is
magnetically transferred through this wall to the switch.
Ambient temperature range: -40 °C to +60 °C
Electrical data
Supply .........................
Relay contacts.............
24 Vdc, 120 Vac or 240 Vac ± 10%
10 A - 120/240 Vac, 28 Vdc
resistive 50 mA - 125 Vdc
Installation instructions
The instructions provided with the equipment shall be followed in detail to assure safe operation.
Test Report
No. NL/DEK/ExTR11.0108/01.
Special conditions for safe use
The property class of the cover screws shall be at least 10.9.
The flame path dimensions differ from the EN 60079-1 requirements. Repairs to be conducted by
Dwyer Instruments Inc.
Essential Health and Safety Requirements
Covered by the standards listed at (9).
Test documentation
As listed in Test Report No. NL/DEK/ExTR11.0108/01.
Page 2/2
Form 100
Version 5 (2013-07)
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