Certificate No:
MEDB000074D
Revision No:
1

EC-TYPE EXAMINATIONCERTIFICATE (MODULE B)

Application of: Directive 2014/90/EU of 23 July 2014 on marine equipment (MED). This Certificate is issued by DNV SE
based on the notification of the Federal Maritime and Hydrographic Agency of Germany.

This is to certify:
That the Portable Oxygen analysis and gas detection equipment: category 2: (explosive gas atmospheres)with type designation(s)Portable Gas Monitor GX-3R & GX-3R Pro
Issued toRIKEN KEIKI Co., Ltd.
Itabashi-ku, Tokyo, Japanis found to comply with the requirements in the following Regulations/Standards:Regulation (EU) 2021/1158,
item No. MED/3.30b. SOLAS 74, Regulation II-2/4, VI/3, XI-1/7, FSS Code 15 and MSC.1/Circ.1477, IMO
MSC.1/Circ.1581.

Further details of the equipment and conditions for certification are given overleaf.
This Certificate is valid until 2025-12-06.
Issued at Hamburg on 2022-02-21
for DNV SE
DNV local station:
Yokohama
Approval Engineer:
Didier Girardin

Digitally signed byDudszus, Sven
Location: Hamburg
Reason: on behalf ofNotified Body
No.: 0098

Christine Mydlak-Roeder
Head of Notified Body

The mark of conformity may only be affixed to the above type approved equipment and a Manufacturer’s Declaration of Conformity issued when the productionsurveillance module (D, E or F) of Annex B of the MED is fully complied with and controlled by a written inspection agreement with a Notified Body. The product liability
rests with the manufacturer or his representative in accordance with Directive 2014/90/EU.
This certificate is valid for equipment, which is conform to the approved type. The manufacturer shall inform DNV SE of any changes to the approved equipment. Thiscertificate remains valid unless suspended, withdrawn, recalled or cancelled.
Should the specified regulations or standards be amended during the validity of this certificate, the product is to be re-approved before being placed on board a vesselto which the amended regulations or standards apply.
LEGAL DISCLAIMER: Unless otherwise stated in the applicable contract with the holder of this document, or following from mandatory law, the liability of DNV AS, its
parent companies and their subsidiaries as well as their officers, directors and employees (“DNV”) arising from or in connection with the services rendered for thepurpose of the issuance of this document or reliance thereon, whether in contract or in tort (including negligence), shall be limited to direct losses and under any
circumstance be limited to 300,000 USD.
Form code: MED 201.DEU

Revision: 2022-02

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Job Id:
Certificate No:
Revision No:

344.1-011097-2
MEDB000074D
1

Product description
Portable Gas Monitor GX-3R/3R Pro is a gas monitor designed to measure the combustible gases (LEL), oxygen (O2),hydrogen sulfide (H2S), and carbon monoxide (CO). The GX-3R Pro can additionally measure toxic gases 1) including
carbon dioxide and sulfur dioxides (CO2 and SO2). The gas sampling is by diffusion. The model does not have internal
suction pump. Li-ion battery unit BP-3R (for GX-3R) and BUL-3R (for GX-3R Pro) are for power supply.
[GX-3R]
Detection target
gas
Detection
principle
Detection range<Service range>
1 digitHC or CH4O2CONew ceramic type

Electrochemical type

Electrochemical type0 - 25.0 vol%< - 40.0 vol%>0.1 vol%

0 - 500 ppm< - 2000 ppm>
1 ppm

0 - 100.0 %LEL
1 %LELPower supply
Dimensions
WeightOperating Temp.
Ingress proof rating[GX-3R Pro]
Detection target
gas
Detection
principle
Detection range<Service range>
1 digit
Detection target
gas
Detection
principle
Detection range<Service range>
1 digitPower supply
Dimensions
WeightOperating Temp.
Ingress proof rating

H2S
Electrochemical
type
0 – 100.0 ppm<- 200.0 ppm>
0.1 ppm

Lithium ion rechargeable battery [BP-3R]
Approx. 58mm (W) × 65mm (H) × 26mm (D) (excluding protrusions)
Approx.100g-20 °C to +50 °C (no sudden changes) (Continuous use environment)
IP68 (2m, 1h)

HC or CH4

O2CO

New ceramic type

Electrochemical type

Electrochemical type0 - 25.0 vol%< - 40.0 vol%>0.1 vol%

0 - 500 ppm< - 2000 ppm>
1 ppm

0 - 100.0 %LEL
1 %LEL
SO2 1)

CO2 1)

Electrochemical type

Infrared type0 – 20.00 ppm<- 100.00 ppm>
0.05 ppm

0 - 5.00 vol%< - 10.00 vol%>0.01 vol%H2S
Electrochemicaltype0 – 100.0 ppm<- 200.0 ppm>
0.1 ppm

0 - 10000 ppm
20 ppmLithium ion rechargeable battery [BUL-3R]
Approx. 73mm (W) × 65mm (H) × 26mm (D) (excluding protrusions)
Approx.120g-20 °C to +50 °C (no sudden changes) (Continuous use environment)
IP68 (2m, 1h)Note: 1) Toxic gas detection not part of MED/3.30 homologation as documented by present certificate.

Form code: MED 201.DEU

Revision: 2022-02

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Job Id:
Certificate No:
Revision No:

344.1-011097-2
MEDB000074D
1

Place of manufacture
RIKEN KEIKI Co., Ltd.
2-3.Minamisakae-cho, Kasukabe
SAITAMA, JAPAN 344-0057

Application/Limitation
Thermal shock test and Oil resistance test in accordance with IEC 60945 : 2002 (Ed.4) additionally carried out (seereport No. 20-284(E) dated 2020.11.19 and 20-329(E) dated 2020.12.03 and 20-334(E) dated 2020.12.04).

-The equipment is compliant with following DNVGL location Class and application:
EMC-A : All locations except bridge and open deck (IEC 60092-504 (2016) table 1 item 15-20)
Enclosure D: (IP68) (Location according ref. IEC 60529:2001
VIB-A : General applications (ref. IEC 60092-504 (2016) table 1 item 10)
TEMP-C : Location (-25°C to +45°C) (ref. IEC 60092-504 (2016) table 1 item 6-7),
Compliant with IACS UR E10 Rev, 08

Ex-certification is not covered by this certificate. Application in hazardous area to be approved in each caseaccording to the Rules and Ex-Certification/Special Condition for Safe Use listed in valid Ex-Certificate issued by a
notified/recognized Certification Body.
The following paragraph provided for information only, is based on information received from the manufacturer, but
not verified by DNV.

Equipment

Information on Ex-Certification received from manufacturer – Not verified by DNVCertifiedCertificate No.

[GX-3R][GX-3R Pro]II 1 G Ex da ia IIC T4 Ga or Ex ia IIC T4 Ga andI M1 Ex da ia I Ma or Ex ia I Ma,-40ºC to +60ºC

DEKRA 17ATEX0103 X

Each Equipment delivery to be provided with installation and user manual.

Type Examination documentation
HiddenDEKRA 17ATEX0103 X issued by DEKRA Certification B.V. Issuing date 2020.07.07
ReportNo. 20-260(E)No. 20-261(E)No. 20-281(E)No. 20-282(E)No. 20-283(E)No. 20-284(E)No. 20-329(E)No. 20-334(E)No. 382-180023-1
No. 382-180023-2
No. 400-2000035
No. 400-2000036-1
No. 200989-1
No. 200989-2
No. 41500120P

Issuing date2020.11.10
2020.11.10
2020.11.18
2020.11.17
2020.11.11
2020.11.19
2020.12.03
2020.12.04
2018.08.10
2018.08.10
2020.08.31
2020.08.31
2020.10.14
2020.10.14
2020.07.30

Re-issuing to version 01
EN 50104:2010 to EN 50104: 2019
IEC 60079-0:2018 to EN IEC 60079-0:2018 incl. AC:2020

Form code: MED 201.DEU

Revision: 2022-02

Drawings
M3-4777-14-01K
M3-4777-14-02K
M3-4777-15-01K
M3-4777-15-02K
M3-4777-15-03K
M3-4777-15-04K
E4-6991-5797-70-01K
E4-6991-5798-40-01K

TEST REPORT No. 41500120P.
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Job Id:
Certificate No:
Revision No:

344.1-011097-2
MEDB000074D
1

Tests carried out
IEC 60945:2002 incl. IEC 60945 Corr. 1: 2008,
IEC 60092-504:2016,
IEC 60533:2015,
Category 2: (explosive gas atmospheres):EN 50104:2019
EN 60079-29-1:2016,
EN IEC 60079-0:2018 incl. AC2020,
EN 60079-1 :2014,
EN 60079-11:2012

Marking of productFor identification to this type examination certificate the products shall be marked with:- Manufacturer's name or trademark- Type designation- Mark of Conformity (see front page)
END OF CERTIFICATEForm code: MED 201.DEU

Revision: 2022-02

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