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 24ATEX0036X(4)

Product:

Gas Detector and Pump, Type **-D58・DC・*(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 228408400 issue 0.
(9)Compliance with the Essential Health and Safety Requirements has been assured by compliance with:EN IEC 60079-0 : 2018
EN ISO 80079-36 : 2016

EN 60079-1 : 2014
EN ISO 80079-37 : 2016

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 h IIB + H2 T4 Gb

Date of certification: 18 July 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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Description

Issue No. 0Gas Detectors, Type **-D58・DC・* are fixed mount, suction type gas detectors with 2 different
detection principles as laid down in the type designation.
Pump, Type RP-D58・DC is used to force a process medium (gas).
The Gas Detectors and Pump include a pump to force the gas and a flow sensor to control theflow.
The pump is a non-electrical in type of protection constructional safety “c”.
The other parts are in type of protection flameproof enclosures “d”.
The examination of the gas detector does not include a judgment of the functional performance ofthe apparatus.
Ambient temperature range -20 °C to 53 °C.
Type designation**D58

・ DCabc

CodeValue
GDSD
RP
D58
DCabcd-blankGH

AM 2972:4

・**dDesignation
Remark or meaning
Gas detector
Smart Detector
Pump
Type number
Fixed value
Direct Current power supply Fixed value
Catalytic combustion method (code a = GD or SD)
None (code a = RP)
Detection principleSemiconductor method (code a = GD or SD)

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Issue No. 0Electrical data
PowersupplyTypeSD-D58・DC

Output signal

Sensor power
supply 1)

Contact output

4-20 mA, 24 Vdc、max. 22 mA or
4-20 mA, 24 Vdc、max. 22 mA withHART-250 Vac, 0.5 A
30 Vdc, 0.5 A

5.0 Vdc 200 mAor
3.0 Vdc 430 mA--

250 Vac, 0.5 A
30 Vdc, 0.5 A-GD-D58・DC

24 Vdc 4-20 mA,24 Vdc、max.22 mA or360 mA 4-20 mA,24 Vdc、max.22 mA with
HART

SD-D58・DC・
GH
GD-D58・DC・GH-

6.5 Vdc 205 mAor
3.5 Vdc 350 mA-RP-D58・DC--250 Vac, 0.5 A
30 Vdc, 0.5 A

Note 1):

Gas sensor powered from an external indicator that also reads the sensor output.

Installation instructions
The instructions provided with the product shall be followed in detail to assure safe operation.
(16)

Report Number
228408400 issue 0.

(17)

Specific conditions of use-(18)Fasteners from stainless steel property class A2-70 are used. The fasteners shall only be
replaced with identical ones.
The flameproof joints are not intended to be repaired.
The unearthed conductive label has a capacitance of 15 nF. Suitability in the specificapplication shall be determined by the user.

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

(19)

Test documentation
As listed in Report No. 228408400 issue 0.

AM 2972:4

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