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 24ATEX0004X(4)

Product:

Gas Detector, Type SD-1RI and SD-1DRI(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/ExTR24.0005/00.
(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 G

Ex db IIC T6 Gb

Date of certification: 15 February 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

Page 1/2

(13)SCHEDULE(14)

to EU-Type Examination Certificate DEKRA 24ATEX0004X(15)

Description

Issue No. 0

Gas Detectors, Type SD-1RI and SD-1DRI are fixed mount, continuous monitoring gas detectors
providing a 4 - 20 mA current output signal (with or without HART communication). One or two
contact outputs (relays) are optionally provided.
The sensor of Type SD-1RI monitors the surrounding atmosphere and is protected by a guard.
The sensor of Type SD-1DRI is protected by a cover with process connections to monitor theconnected atmosphere at atmospheric pressure and a temperature not exceeding the ambient
temperature range.
The examination of the gas detector does not include a judgement of the functional performanceof the apparatus.
Ambient temperature range -20 °C to +60 °C.
Electrical data
Supply SD-1RI and SD-1DRI: 24 Vdc, 85 mA
Analog output- 4 - 20 mA: 24 Vdc, max. 22 mA or- 4 - 20 mA with HART communication: 24 Vdc, max. 22 mA
Contact output (Relay)- 30 Vdc / 250 Vac, 0.5 A
Contact output (2 Relays)- 30 Vdc, 1 A
Installation instructions
The instructions provided with the product shall be followed in detail to assure safe operation.
(16)

Report Number
NL/DEK/ExTR24.0005/00.

(17)

Specific conditions of use- The property class of the cover screws is at least A*-70.
- The plastic window is submitted to tests corresponding to the low risk of mechanical danger.
- The flameproof joints are not intended to be repaired.

(18)

Essential Health and Safety Requirements
Covered by the standards listed at item (9).
Test documentation
As listed in Report No. NL/DEK/ExTR24.0005/00.

AM 2972:4

Page 2/2