PC0E-1011

Model

Portable gas monitor

mounted!

Allows fast and accurate information
sharing in emergencies.

5-year warranty
The instrument and sensors have 5-year warranty*.
*Option.

Up to 5 gases can be detected
Detects carbon dioxide and sulfur dioxide inaddition to combustible gases, O2, H2S, and CO.

Intrinsically safe explosion-proof construction
and flame-proof enclosures
Water and dust resistant, IP66/68
Robust design (Withstands 7m drop)

Play the Promotional videofrom here.
Now on the website!

Multi-function! GX-3R Pro features

123
4
56Connects with Bluetooth
Allows communication with smartphones or tablets using the dedicatedapp iOS and Android. Allows rapid notification of emergency situations.

HCUp to 5 gases can be detected!

O2

orDetects carbon dioxide and sulfur dioxide in addition to combustible gases,O2, H2S, and CO. Allows selection to suit requirements.

CH4

COH 2S+CO2or

Selectable battery type
Runs on either dry cell or rechargeable batteries.
Unit system for easy replacement.

OK!

Supports 11 languages

Rechargeable battery unit

Japanese/English/French/Spanish/Portuguese/German/Italian/
Russian/Korean/Chinese (Simplified & Traditional)

Full-dot display easy to see
Fine dot display for clearer and more various indications.

Dry battery unit

OFFON

LCD BACKGROUNDLCD BACKGROUND

Mounted with the new R sensors, which are long-term consistence sensors
GX-3R Pro mounted with the new R sensor series, which have dramatically improved the performance from the previous sensors.
The sensors have 5-year warranty*. *Option.

HC or CH4

O2

CO&H2S

COCO2

CO/H2S/SO2Tough construction
against poisoning- andimpact-resistant!

New electrochemical
oxygen sensor,
which improved
the basic characteristics.

2-in-1 configuration
enabledsmaller detector!

Significantly
reduce H2 interferencewith a two-sensor
structure!

Ultracompact &lightweight infrared
sensorImproved basic characteristics! Toxic gas sensors

Wide range of safety functions
Combustible gas
conversion function

Alarm setpoints can be
freely adjusted

Eliminates the need for complex calculations.
Allows direct readout of 26 different combustible
gas types.

Lunch break

You can now adjust alarm setpoints on
the main unit. Allows monitoring basedon the customer’s own standards.

Confirmation beepThis function provides audible notification thatthe device is functioning correctly.
Buzzer sounds at preset intervals whilemeasurement is underway.

Cal. Limit

Enabling this function retains the TWA
and peak values and allows integrating
measurement whether power is on or off.

Indicates the number of days until recommended
regular maintenance when the power is turned on.
Reminds the user to perform maintenance on theproduct to ensure safe use.

Combustible conversion gas list

2Conversion gas

Gas name displayed

MethaneIsobutane
Hydrogen
MethanolAcetylene
Ethylene
EthaneEthanol
Propylene
AcetonePropaneButadiene
Cyclopentane

CH4i-C4H10
H2CH3OHC 2H 2C 2H 4C 2H 6C2H5OHC 3H 6C 3H 6O
C 3H 8C 4H 6
C5H10Calibration gas conversion
i-C4H10CH4ー◯◯◯◯◯◯◯◯◯◯◯◯×ー◯◯◯◯×◯◯◯×◯◯

Conversion gas

Gas name displayedBenzene
N-hexaneTolueneN-heptane
XyleneN-nonane
Ethyl acetate
Isopropyl alcohol
Methyl ethyl ketone
Methyl methacrylate
Dimethyl ether
Methyl isobutyl ketone
TetrahydrofuranC6H 6n-C6H14
C7H8n-C7H16
C8H10
n-C9H20
EtAc
IPAMEKMMADMEMIBKTHF

Calibration gas conversion
i-C4H10CH4◯◯◯
◯
◯◯◯◯
◯◯◯◯
◯◯◯
◯
◯◯
◯
◯
◯◯◯
◯
◯◯

SO2

Motion sensor equipped
Man down alarm

Screen display inversion

Monitors wearer movement andissues alarm if no movement
is detected within preset time.

Automatically inverts the display by 180 degrees
depending on the orientation of the product.
This helps reduce mistakes in reading
numerical values.

Panic alarm
Lets user issue alarm manually
to notify others in emergency.
(Tap the unit twice.)

Optional accessories
1

Heat-resistantcase

2Leather case

3Belt clip

1

Heat-resistantcase

Case for protection from heat resource.
Uses a safety pin.

Part No. 4777 4260 80

2

Leathercase

Case for protection against dirt.
Uses the clip on the unit.

Part No. 4777 4258 70

Belt clip

Allows the product to be attached toa belt or pocket.

Part No. 4777 9202 40

4Arm/Ankle
belt

Belt for securing the unit to your arm orankle.

Part No. 4777 9293 30

5Protectivefilm

Protects the display.
(set of 5)

Part No. 4777 9296 50

6Manualsuction unit

External manual pump.
Draws in at greater flow rates thanelectric pump.

7Charging
cradleCradle for recharging the unit.
Cradles can be interconnected.

8Five-unit
AC adaptor

One AC adapter recharges up to five units. (with 22.5cm cable)*Recharging times remain unchanged.
Part No. 4777 9329 70(with 60cm cable)
Part No. 4777 9319 80(with 120cm cable)
Part No. 4777 9333 20

9Calibration
adapter

Adapter for applying gas to GX-3R Pro
during bump test and calibration.
(with outlet nipple and rubber seal)

Part No. 4777 9312 70

10Datamanagement
program

Software for viewing and managing
measurement data.

Part No. 9811 0870 60

3*not explosion-proof

4Arm/Ankle belt

5

Protective film

6

Manual suctionunit

Samplingprobe* Photo shows the unit withsampling probe.

7

Charging cradle

8

Five-unit
AC adaptor

9

Calibration
adapter

10 Data management
program

11

Pump unit RP-3R (Pro)An external electric pump.
Allows use forsuction sampling.

12Specifications
ModelRP-3R(Pro)

Suction flow rate

High mode: 0.4 L/min or more
Low mode: 0.25 L/min or more

Battery

AA alkaline battery × 1

Continuous
operating timeHigh mode: Approx. 10 hours
Low mode: Approx. 16 hours(with sampling probe)
Part No. 4777 9297 20(with 8m float-type tube)
Part No. 4777 9299 70(with 30m weighted tube)
Part No. 4777 9300 30
Part No. BC-3R 00

Docking station SDM-3R

Allows the user to performa simplified pre-work check(bump test) andgas calibration automatically.

Temperature range -20ºC~+50ºC (at a constant condition)
Humidity range
Explosion-proof
class

0~95%RH (non-condensing)Inherently safe explosion-proof construction
ATEX
II1G Ex ia IIC T4 Ga
IECEx

Ex ia IIC T4 Ga

Japan Ex Ex ia IIC T4 Ga

Easy to attachand remove!

Structure

Drip-proof and dust-proof performancescompliant to IP67 level

Dimensions /Weight

Approx. 82 mm (W) × 96 mm (H) × 29 mm (D)/Approx. 120 g

Optional accessories

8m float-type gas sampling tube
Filters (set of 10)
Meshes (set of 10)

Specifications
Model

SDM-3R

Power supply

100 to 240 V AC ±10%, 50/60 Hz

Suction flow rate

Approx. 0.25 L/min

Temperature range 0~40ºC (at a constant condition)
Humidity range

0~95%RH (non-condensing)

Dimensions /Weight

Approx. 130mm (W) × 110mm (H) × 250mm (D) /Approx. 800g

Optional accessories

Connecting fixture, wall-mounting fixture,exhaust tube, LAN cap, USB cap* Cannot be connected to other models GX-2009, GX-3Rand others.

3Bluetooth communication**Uses low-energy-consumption Bluetooth (Bluetooth Low Energy).

The GX-3R Pro can communicate with smartphones and tablets via Bluetooth. Allowsalarms to be issued to remote locations in real time to notify emergency situations using
the dedicated RK Link app. Also allows the main unit's settings to be altered.
Download the free RK Link app from Google Play or Apple Store.

Features available by connecting GX-3R Pro with RK Link
Sharing emergency information

1

Email alarm information

Sends emergency
notification emails
from a paired
smartphone
via the app.

Emergency notification emails are sent
promptly to pre-registered addresses
in the event of an alarm.

Gas alarm
Man down alarm
Reminder alert

Change Setting

2Setting【Alarm setpoint】

Allows easy modification of settings like alarm setpoints,
calibration expiration date, and display language.

4

Fault alarm
Panic alarm【Calibration】【Language】

Allows modification of settings like alarm setpoints,calibration gas concentrations, and display language.
Also allows detailed settings for types of alarmsthat trigger email notification.
For example: No email notification for first alarm;
email notification from second alarm onwardModelSite!

!

!

Displays location
information at the touchof a button.

Gas alarm
triggered!

3

Check gas concentration and battery level

4!

MonitoringroomOwner information registration
Allows registration of details such ascompany and individual name.
Displayed in emergency notification emails.

Displays gas concentrations
in real time during measurement.
Displays current battery levels in three steps.
Battery level icon

*Can only be used in country which achieved radio certification.
*May not be available due to radio wave conditions.

Bluetooth andEmail text (sample)

are registered trademarks of Bluetooth SIG, Inc. and used by Riken Keiki under license.

Google Play and the Google Play logo are trademarks of Google LLC.
say Apple, the Apple logo, iPhone, and iPad are trademarks of Apple Inc., registered in the U.S. and other countries and regions. App Store is a service mark of Apple Inc.

5

Other features available by Bluetooth
GX-3R Pro detection information can be combined with a wide range of
wireless devices to enable management on the customer’s server
and to allow sharing of on-site status in real timewith supervisors at remote locations.*

Cloud server* Your company is responsible for system configurations.

Gas concentration
detector information
Worker

Site supervisor

Gateway

Safety manager

Wireless device

Vital watch

Heat strokeindex

Use in combination with a range of wireless devices

Awareness of individual status, environment, and location improves safety management.
GX-3R Pro communication specifications

Checking site
conditions remotely

Spotting signs ofimminent disasterAccurateprecautionary warnings

Emergency alert
notification

Rapid responsein emergencies

Operation in conjunction
with your company’s safety
management procedures

Communication system:
Bluetooth 4.2 (Bluetooth Low Energy)
Profile:GAP (Peripheral) / GATT

Offers unlimited
possibilities!

Output/maximum communication distance:
Class 2 / Approx. 10 m(varies depending on surrounding environment)* Your company is responsible
for system configurations.

Operations:
Acquiring gas concentration/status
information; viewing/changing settings

FAQ
Pairing
How long is the pairing standby time?

5 minutes. After 5 minutes, Bluetooth needs to be turned on again to resume standby.

What happens when a device is paired?

changes from blinking to steady illumination.

What happens when device pairing is lost?

blinks and the product goes to standby. No audible alarm is issued.

Are unpaired connections possible?

No.

Communication
What is the communication system (data access method)?

Read and Write.

What is the GATT profile?

Original.

What is the communication interval?

At least 1 second.

Main unit
What is the continuous operating time when using BLE?
Is the product GPS-equipped?

Normal mode: 25 hours

Long-life battery mode: 40 hours* Continuous operating time does not change when using BLE.

No.
Acquire location information from a smartphone or beacons.

Others6

Can details of the communication specifications be disclosed?

Yes, with the conclusion of a nondisclosure agreement.

Do the product communication specifications need
to be altered for connecting with a system?

No. Perform steps to ensure compatibility on the system side.

What are the costs of connecting with a system?

No costs are incurred. However, additional fees may apply
if such connection requires changes in product specifications.

Specifications
ModelGX-3R Pro

Detection method

Diffusion type (Changeable to sampling type by attaching RP-3R)

Gas alarm indication

Lamp flashing, continuous modulating buzzer sounding, gas concentration display blinking, vibration
Reset operation: Self-latching

Fault alarm

System abnormality, sensor abnormality, battery voltage drop, calibration failure

Fault alarm indication

Lamp flashing, intermittent buzzer sounding, detail display Reset operation: Self-latching

Panic alarm

Two levels: Prealarm and main alarm (after 5-second prealarm)

Man down alarm

Three levels: Prealarm 1 (60 seconds), prealarm 2 (75 seconds), main alarm (90 seconds)
Reset operation: Self-latching

Display

LCD digital (full-dot), backlight

Displays

Operation status, clock, battery level, temperature, peak reading, calibration notification

Buzzer volumeApprox. 95 dB (30 cm)

Languages

Japanese/English/French/Spanish/Portuguese/German/Italian/Russian/Korean/Chinese (simplified/traditional)

BluetoothBluetooth 4.2 (Bluetooth Low Energy)

Data logger function

Maximum number of items: 3,600

Power source

Lithium ion rechargeable battery unit (charging time approx. 3 hours) or
dry battery unit (AAA alkaline battery × 2)

Continuous operatingtime*1Long-life battery mode on: Approx. 40 hours (25 °C, fully charged, no alarm, no lighting)Long-life battery mode off: Approx. 25 hours (25 °C, fully charged, no alarm, no lighting)Temperature range/
humidity range*2-40 ºC~+60 ºC(no sudden changes), 0~95%RH (non-condensation)
ATEX

Explosion-proof classIECEx
Japan Ex

Reset operation: Self-latching

Interval: 5 minutes (adjustable) Communication system: IrDA

ll1G Ex da ia llC T4 Ga / lM1 Ex da ia l Ma ( With combustible gas sensor)
ll1G Ex ia llC T4 Ga / lM1 Ex ia l Ma ( No combustible gas sensor)
Ex da ia llC T4 Ga / Ex da ia l Ma ( With combustible gas sensor)
Ex ia llC T4 Ga / Ex ia l Ma ( No combustible gas sensor)
Ex ia llC T4 Ga

Protection level

Equivalent to IP66/68 (2 m, 1 h)External dimensions/weightWith rechargeable battery unit: Approx. 73mm(W)×65mm(H)×26mm(D) (excluding protrusions) / Approx. 120 g
With dry battery unit: Approx. 73mm(W)×65mm(H)×34mm(D) (excluding protrusions) / Approx. 140 g

Warranty

3 years (optional 2 years extension available)*1 Varies depending on sensor type installed. Please contact Riken Keiki for more information.
*2	In temporary ambient conditions for approximately 15 minutes. The operating temperature and humidity ranges for continuous ambientconditions are as follows: Temperature: -20 °C to +50 °C (no sudden changes) / Humidity: 10 to 90 %RH (no condensation)

Detection gas
Detection targetgas

Combustible gas(HC or CH4)

Detection
principle

New ceramic type

Detection range(service range)

0~100%LEL

0~25.0vol%(~40.0vol%)0~500ppm(~2000ppm)

0~100.0ppm(~200.0ppm)

0~20.00ppm(~100.00ppm)

0~5.00vol%(~10.00vol%)0~10000ppm

1 digit

1 %LEL0.1 vol%

1 ppm

0.1 ppm

0.05ppm

0.01 vol%20 ppmOxygen (O2)

Carbon monoxide (CO) Hydrogen sulfide (H2S)

Sulfur dioxide (SO2)

Carbon dioxide (CO2)Electrochemical type:1st alarm: 10%LEL L alarm:2nd alarm : 25%LEL LL alarm
Gas alarm:3rd alarm: 50%LEL H alarm
setpoint(can be set by OVER alarm : 100%LEL OVER alarm :user)

Infrared type: 5000ppm: 0.50vol% 1st alarm: 2.00ppm 1st alarm:5.0ppm 1st alarm:25ppm 1st alarm
19.5vol% 1st alarm
50ppm 2nd alarm : 30.0ppm 2nd alarm : 5.00ppm 2nd alarm : 3.00vol% 2nd alarm : 5000ppm
18.0vol% 2nd alarm :: 5000ppm: 3.00vol% 3rd alarm: 100.00ppm 3rd alarm: 100.0ppm 3rd alarm: 1200ppm 3rd alarm
23.5vol% 3rd alarm
1.0ppm TWA alarm : 2.00ppm TWA alarm : 0.50vol% TWA alarm : 5000ppm
25ppm TWA alarm :40.0vol% TWA alarm :5.0ppm STEL alarm : 5.00ppm STEL alarm : 3.00vol% OVER alarm : 10000ppm
STEL alarm : 200ppm STEL alarm :OVER alarm : 2000ppm OVER alarm : 200.0ppm OVER alarm : 100.00ppm OVER alarm : 10.00vol%

Standard accessories
Protective cover

AC adapter(Part No. 2594 0898 30)

Alligator clip
(Part No. 4777 9203 10)

Calibration adapter (simple type)(Part No. 4777 9308 10)

Appearancewhen attached

Protective cover(port No. 4777 4175 00)

Hand strap(Part No. 0888 0605 90)

EU plug(Part No. 2594 0933 60)

7Ordering guideSelect one combustible gas sensor.
Code
Code ①

Selection

Sensor model

Detection range

H

Combustible gas (HC) sensor

NCR-6309

0~100%LEL

M

Combustible gas (CH4) sensor

NCR-6309

0~100%LEL

0

No sensorーー

Select whether oxygen sensor is required.
Code
Code ②

Selection

1

Oxygen (O2) sensor

0No sensor

Sensor model

Detection range

ESR-X13P

0~25.0vol%(~40.0vol%)ーー

Select one sensor (detection gas type) to be installed.

Code ③④

CodeSelectionSensor model

Detection range

E1

Carbon monoxide/hydrogen sulfide (CO/H2S) sensor

ESR-A1DP

0~500ppm(~2000ppm)
0~100.0ppm(~200.0ppm)

E2

Carbon monoxide (CO) sensor*H2 interference reduction

ESR-A1CP

0~500ppm(~2000ppm)

E3

Sulfur dioxide (SO2) sensor

ESR-A13D

0~20.00ppm(~100.00ppm)

E4

Hydrogen sulfide (H2S) sensor

ESR-A13i0~100.0ppm(~200.0ppm)

E5

Carbon monoxide (CO) sensor

ESR-A13P

0~500ppm(~2000ppm)

00No sensorーー

Select one sensor (detection gas type) to be installed.

Code ⑤⑥

CodeSelection

E3

Sulfur dioxide (SO2) sensorSensor model

Detection range

ESR-A13D

0~20.00ppm(~100.00ppm)

E4

Hydrogen sulfide (H2S) sensor

ESR-A13i0~100.0ppm(~200.0ppm)

D1

Carbon dioxide (CO2) <vol%> sensor

IRR-0409

0~5.00vol%(~10.00vol%)D2

Carbon dioxide (CO2) <ppm> sensor

IRR-0433

0~10000ppm

00

No sensorー

NoteTwo identical sensors cannot be selected.

Select the battery type.
CodeCode ⑦ー

Select Bluetooth compatibility.
Selection

ModelCodeL

Rechargeable
lithium ion battery

BUL-3RD

Alkaline battery

BUD-3R

Code ⑧Selection

Model1

Bluetooth supportー0Bluetooth unsupportedー*Can only be used in country which achieved radio certification.
*May not be available due to radio wave conditions.

Write the selected codes in the correspondingboxes on the right.

B①②③④⑤⑥⑦⑧

Select optional accessories
Name

Quantity

Name

Quantity

Name

Heat-resistantcase

Manual suction unit (with 8m float-type tube)

Calibration adaptor

Leather caseManula suction unit (with 30m weighted tube)

Data management program

Belt clip

Charging cradle

Pump unit RP-3R(Pro)

Arm/ankle belt

Five-unit AC adaptor (with 22.5cm cable)

Docking station SDM-3R

Protective film

Five-unit AC adaptor (with 60cm cable)

Manual suction unit (with sampling probe)

Five-unit AC adaptor (with 120cm cable)

Quantity

Distributed by:
2 -7-6 Azusawa, Itabashi-ku, Tokyo 174 - 8744, Japan

Phone : +81-3-3966-1113
Telefax : +81-3-3558-9110
E-mail : intdept@rikenkeiki.co.jp
Web site : http://www.rikenkeiki.co.jp/english※ The contents described in this catalog are

subject to change without notice according
to the performance improvement.

PC0E-1011-200130 S