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: KEMA 10ATEX0085(4)

Product:

Portable Gas Monitor Model GX-8000(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: 6The examination and test results are recorded in confidential test report number NL/KEM/ExTR10.0035/06.
(9)Compliance with the Essential Health and Safety Requirements has been assured by compliance with:EN IEC 60079-0 : 2018

EN 60079-11 : 2012

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 1 GEx ia IIC/IIB T4 Ga

Date of certification: 24 April 2024
DEKRA Certification B.V.

ÙL.G. van Schie
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 KEMA 10ATEX0085(15)

DescriptionIssue No. 6

The Portable Gas Monitor Model GX-8000 is a gas monitor designed to provide continuous
monitoring of exposure to combustible gas, oxygen (O2), carbon monoxide (CO) and hydrogensulphide (H2S) in hazardous areas.
Ambient temperature range -20 ºC to +50 ºC.
Ambient temperature range during charging 0 ºC to +40 ºC.
The relation between sensor type used and gas group is per following table:
Sensor typeO2 (oxygen)
CO (carbon monoxide)
H2S (hydrogen sulphide)
TE-7515 (combustible gas thermal conductivity sensor)
SH-8605 (combustible gas hot-wire semiconductor sensor)
NC-6215 (combustible gas thermocatalytic sensor)

Gas group
IICIIB

Additional information
The performance of the Portable Gas Monitor Model GX-8000, as a safety device, is not coveredby this certificate.
Electrical data
Supply: Battery unit type BUD-8000 with three series connected Alkaline Manganese AA
batteries, type LR6 manufactured by Toshiba, or rechargeable battery unit type BUL-8000.
Backup battery type CR1220 manufactured by Maxell.
Installation instructions
The instructions provided with the product shall be followed in detail to assure safe operation.
(16)

Report Number
NL/KEM/ExTR10.0035/06.

(17)

Specific conditions of use
None.

(18)

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

(19)

Test documentation
As listed in Report No. NL/KEM/ExTR10.0035/06.

AM 2972:4

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