IECEx Certificateof Conformity
INTERNATIONAL ELECTROTECHNICAL COMMISSION
IEC Certification System for Explosive Atmospheres
for rules and details of the IECEx Scheme visit www.iecex.com

Certificate No.:

IECEx DEK 24.0004X

Page 1 of 3

Status:Current

Issue No: 0

Date of Issue:

2024-02-15

Applicant:

RIKEN KEIKI Co., Ltd.
2-7-6, Azusawa, Itabashi-ku,
Tokyo, 174-8744,
Japan

Equipment:

Gas Detector, Type SD-1RI and SD-1DRI

Optional accessory:
Type of Protection:

Flameproof enclosures "d"Marking:

Ex db IIC T6 Gb

Approved for issue on behalf of the IECEx
Certification Body:

R. Schuller

Position:

Certification Manager

Signature:(for printed version)Date:(for printed version)

2024-02-15

1. This certificate and schedule may only be reproduced in full.
2. This certificate is not transferable and remains the property of the issuing body.
3. The Status and authenticity of this certificate may be verified by visiting www.iecex.com or use of this QR Code.

Certificate issued by:
DEKRA Certification B.V.
Meander 1051
6825 MJ Arnhem
Netherlands

Certificate history:

IECEx Certificateof Conformity
Certificate No.:

IECEx DEK 24.0004X

Page 2 of 3

Date of issue:

2024-02-15

Issue No: 0

Manufacturer:

RIKEN KEIKI Co., Ltd.
2-7-6, Azusawa, Itabashi-ku,
Tokyo, 174-8744,
Japan

Manufacturinglocations:

RIKEN KEIKI Co., Ltd.
2-3, Minamisakae-cho,
Kasukabe-shi,
Saitama, 344-0057,
Japan

This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with theIEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, was assessed andfound to comply with the IECEx Quality system requirements.This certificate is granted subject to the conditions as set out in IECEx Scheme
Rules, IECEx 02 and Operational Documents as amended
STANDARDS :The equipment and any acceptable variations to it specified in the schedule of this certificate and the identified documents, was foundto comply with the following standards
IEC 60079-0:2017
Edition:7.0

Explosive atmospheres - Part 0: Equipment - General requirements

IEC 60079-1:2014
Edition:7.0

Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"This Certificate does not indicate compliance with safety and performance requirements
other than those expressly included in the Standards listed above.
TEST & ASSESSMENT REPORTS:
A sample(s) of the equipment listed has successfully met the examination and test requirements as recorded in:
Test Report:
NL/DEK/ExTR24.0005/00
Quality Assessment Report:
NL/DEK/QAR23.0010/00

IECEx Certificate
of Conformity
Certificate No.:

IECEx DEK 24.0004X

Page 3 of 3

Date of issue:

2024-02-15

Issue No: 0

EQUIPMENT:
Equipment and systems covered by this Certificate are as follows:
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 acover with process connections to monitor the connected atmosphere at atmospheric pressure and a temperature not exceeding the ambient
temperature range.
The examination of the gas detector does not include a judgment of the functional performance of 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
SPECIFIC CONDITIONS OF USE: YES as shown below:• 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.