CERTIFICATE(1)

EU-Type Examination(2)

Equipment or protective systems intended for use inpotentially explosive atmospheres - Directive
2014/34/EU(3)

EU-Type Examination Certificate Number: DEKRA 24ATEX0029X(4)

Product:

Gas Detector, Type GD-A80***(5)

Manufacturer:

RIKEN KEIKI Co., Ltd.

(6)

Address:

2-7-6, Azusawa, Itabashi-ku, Tokyo, 174-8744, Japan(7)

This product and any acceptable variation thereto is specified in the schedule to this certificate and the documents
therein referred to.

(8)

DEKRA Certification B.V., Notified Body number 0344 in accordance with Article 17 of Directive 2014/34/EU of theEuropean Parliament and of the Council, dated 26 February 2014, certifies that this product has been found tocomply with the Essential Health and Safety Requirements relating to the design and construction of products
intended for use in potentially explosive atmospheres given in Annex II to the Directive.

Issue Number: 0The examination and test results are recorded in confidential test report number NL/DEK/ExTR24.0024/00.
(9)Compliance with the Essential Health and Safety Requirements has been assured by compliance with:EN IEC 60079-0 : 2018

EN 60079-1 : 2014

except in respect of those requirements listed at item 18 of the Schedule.
(10)

If the sign ”X” is placed after the certificate number, it indicates that the product is subject to the Specific Conditionsof Use specified in the schedule to this certificate.

(11)This EU-Type Examination Certificate relates only to the design and construction of the specified product. Further
requirements of the Directive apply to the manufacturing process and supply of this product. These are not coveredby this certificate.

(12)

The marking of the product shall include the following:

II 2 GEx db IIC T4 Gb

Date of certification: 10 July 2024
DEKRA Certification B.V.

?
R. Schuller
Certification Manager
Throughout this document, a point is used as the decimal separator.
© 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 www.dekra-product-safety.com Registered Arnhem 09085396

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to EU-Type Examination Certificate DEKRA 24ATEX0029X(15)

Description
Gas Detector, Type GD-A80*** is a fixed mount gas detector available with 4 different detection
principles and with or without a suction chamber as laid down in the type designation.
The detector without suction chamber monitors the surrounding atmosphere.
The detector with a suction chamber is provided with process connections and monitors theconnected atmosphere at atmospheric pressure and a temperature not exceeding the ambienttemperature range.
The examination of the gas detector does not include a judgment of the functional performance ofthe apparatus.

Issue No. 0

Type designation
GD - A 80 * * *ab c d e fCodeabcdValue
GDA80
blankDDesignation
Gas detector
Diffusion typeType numberSuction chamberblank

Without suction chamberWith suction chamber

Semiconductor method
Detection method

SHot-wire semiconductor method

N

Thermal conductivity method-40 °C to +53 °C

blankfFixed value
Fixed value

Catalytic combustion method

Ve

Remark or meaning
Fixed value-70

Ambient temperature range-40 °C to +70 °C
Only with code e = blank

Electrical dataType
GD-A80GD-A80V
GD-A80N
GD-A80S
GD-A80-70
GD-A80DGD-A80DV
GD-A80DN
GD-A80DS
GD-A80D-70

AM 2972:4

Power Supply
3.0 Vdc / 430 mA or 5.0 Vdc / 200 mA
6.5 Vdc / 205 mA or 3.5 Vdc / 350 mA
3.3 Vdc / 170 mA or 1.0 Vdc / 220 mA
3.0 Vdc / 500 mA or 5.0 Vdc / 200 mA
3.0 Vdc / 430 mA or 5.0 Vdc / 200 mA
3.0 Vdc / 430 mA or 5.0 Vdc / 200 mA
6.5 Vdc / 205 mA or 3.5 Vdc / 350 mA
3.3 Vdc / 170 mA or 1.0 Vdc / 220 mA
3.0 Vdc / 500 mA or 5.0 Vdc / 200 mA
3.0 Vdc / 430 mA or 5.0 Vdc / 200 mA

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Issue No. 0Installation instructions
The instructions provided with the product shall be followed in detail to assure safe operation.
(16)

Report Number
NL/DEK/ExTR24.0024/00.

(17)

Specific conditions of use-(18)Fasteners from stainless steel property class A2-70 are used. The fasteners shall only bereplaced with identical ones.
The flameproof joints are not intended to be repaired.
The unearthed conductive label has a capacitance of 5 nF. Suitability in the specificapplication shall be determined by the user.

Essential Health and Safety Requirements
Covered by the standards listed at item (9).

(19)

Test documentation
As listed in Report No. NL/DEK/ExTR24.0024/00.

AM 2972:4

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