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 13.0024X

Page 1 of 4

Status:Current

Issue No: 7

Date of Issue:

2024-04-26

Applicant:

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

Equipment:

Gas detector, Type SD-1EC, SD-1DEC, SD-1OX and SD-1DOX

Optional accessory:
Type of Protection:

Ex db

Marking:

Ex db IIC T6 Gb

Approved for issue on behalf of the IECEx
Certification Body:

L.G. van Schie

Position:

Certification Manager

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

2024-04-26

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:
Issue 6 (2022-08-24)
Issue 5 (2020-07-07)
Issue 4 (2017-04-25)
Issue 3 (2016-05-12)
Issue 2 (2015-04-21)
Issue 1 (2014-11-20)
Issue 0 (2014-01-21)

IECEx Certificateof Conformity
Certificate No.:

IECEx DEK 13.0024X

Page 2 of 4

Date of issue:

2024-04-26

Issue No: 7

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

RIKEN KEIKI NARA MFG. Co., Ltd.
49‐1, Abe, Sakurai‐shi,Nara, 633‐0054,
JapanThis 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/ExTR13.0003/07
Quality Assessment Reports:
NL/DEK/QAR23.0010/00

NL/DEK/QAR23.0011/00

IECEx Certificateof Conformity
Certificate No.:

IECEx DEK 13.0024X

Page 3 of 4

Date of issue:

2024-04-26

Issue No: 7

EQUIPMENT:
Equipment and systems covered by this Certificate are as follows:
Gas Detectors, Type SD-1EC, SD-1DEC, SD-1OX and SD-1DOX are fixed mount, continuous monitoring gas detectors providing a 4 to 20mA output signal. One or two contact outputs (relays) are provided for alarm assignment.
The detector consists of an aluminium enclosure with integral cable gland, a plastic window and a screwed-on aluminium or stainless steel
sensor.
The sensor of Type SD-1EC and Type SD-1OX monitors the surrounding atmosphere and is protected by a guard.
The sensor of Type SD-1DEC and Type SD-1DOX is protected by a cover with process connections to monitor the connected atmosphere at
atmosperic pressure and a temperature not exceeding the ambient temperature range.
The examination of the gas detector does not include a judgement of the functional performance of the apparatus.
Ambient temperature range -20 °C to +60 °C.
Electrical data
Supply: 24 Vdc, max. 45 mA
Analogue output- 4 - 20 mA: 24 Vdc, max. 22 mA or- 4 - 20 mA with HART communication: 24 Vdc, max. 22 mA
Contact output- with 1 contact output: max. 30 Vdc / 250 Vac, 0.5 A- with 2 contact outputs: max. 30 Vdc, 1 A per contact
SPECIFIC CONDITIONS OF USE: YES as shown below:- The plastic window is submitted to tests corresponding to the low risk of mechanical danger.
- The property class of the cover screws is at least A*-70.
- The flameproof joints are not intended to be repaired.

IECEx Certificateof Conformity
Certificate No.:

IECEx DEK 13.0024X

Page 4 of 4

Date of issue:

2024-04-26

Issue No: 7

DETAILS OF CERTIFICATE CHANGES (for issues 1 and above)
1. Minor change on the label drawings and instructions.
2. Linked to new QARs.
3. Manufacturing location Ebina Denki is no longer listed.