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 24ATEX0018X(4)

Product:

Portable gas detector type GX-Force(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/ExTR24.0019/00.
(9)Compliance with the Essential Health and Safety Requirements has been assured by compliance with:EN IEC 60079-0 : 2018

EN 60079-1 : 2014

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 GII 1 G

Ex da ia IIC T4 Ga (with catalytic gas sensor)
Ex ia IIC T4 Ga (without catalytic gas sensor)

Date of certification: 15 April 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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(13)SCHEDULE(14)

to EU-Type Examination Certificate DEKRA 24ATEX0018X(15)

Description

Issue No. 0

GX-Force is an “Ex ia” portable suction type gas detector which can measure 4 gases. For gas
sensors, electrochemical type and catalytic type are used. The electrochemical type sensor
detects CO (carbon monoxide), H2S (hydrogen sulfide), and O2 (oxygen). The catalytic typesensor detects flammable gases.
Rechargeable temperature range is between +10 °C and +40 °C.
Ambient temperature range is between -20 °C and +60 °C.
Type designation:
GX-Force
Three different gas sensors are used:
Model ESR-A1DP: measures CO/H2S (electrochemical principle)
Model ESR-X13P: measures O2 (electrochemical principle)
Model NCR-6309: measures flammables (catalytic)
Electrical data
Non-user-replaceable Battery powered.
Nominal voltage: 3.6 V.
Maximum open circuit voltage: 4.2 V.
Charging circuit:
Charging shall be done in a non-hazardous location by use of a charger exclusively specified forit.
Um = 6.0 V (SELV circuit).
Installation instructions
The instructions provided with the product shall be followed in detail to assure safe operation.
(16)

Report Number
NL/DEK/ExTR24.0019/00.

(17)

Specific conditions of use
1. The flameproof joints are not intended to be repaired.
2. When using the product in hazardous areas, take the precautions as listed in safety
instructions to safeguard against static electricity hazards.

(18)

Essential Health and Safety Requirements
Covered by the standards listed at item (9).
Test documentationAs listed in Report No. NL/DEK/ExTR24.0019/00.

AM 2972:4

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