RKI Instruments GX-2009 Specifications

P027-1708/MSHA

MSHA PERSONAL FOUR GAS MONITOR

Gas Detection For Life

Actual Size

GX-2009 MSHA

Features

• Simultaneous detection of 4 gases
° CH4, O2, NO2 & CO or CH4, O2, H2S & CO

• Smallest / Lightest 4 gas monitor on the market
° 2.7” H x 3” W x 1” D, 4.6 oz.

• Dual audible alarm ports (95 db @ 30 cm)

• 3visualalarmLED’s

• Vibration alarm

• IP-67 Water resistant / dustproof design

• Calibration and bump test lock out or reminder controls

• Large capacity data logging standard
° 8 alarm trends

° Log time range of 10 to 300 hours
° 100 calibration records stored

• 20 hours of operation (NiMH batteries)

• Large LCD display screen

• Automatic backlighting at alarm

• Impact resistant rubber over-mold body

• Intrinsically safe, MSHA classified

• 2 year warranty

Applications

• Mining

• Underground construction

• Tunneling

World’sSmallestandLightest

4 Gas Monitor

RKI is proud to offer the smallest and lightest 4-gas monitor with an MSHA rating, the GX-2009 MSHA. Weighing only 4.6
ounces, it fits in the palm of your hand.

The GX-2009 MSHA simultaneously monitors and displays % volume methane, oxygen, carbon monoxide, and nitrogen

dioxide. Equipped with dual audible alarm ports and alarm LED’s on 3 sides of the instrument, so that alarm conditions

are obvious from multiple perspectives especially in high noise environments. Other features include a water resistant and
dustproof design with IP 67 rating, an impact resistant rubber over-mold body that is RFI resistant, and a large capacity
data logging system included as standard.

Other standard features are vibration alarm, auto-calibration, calibration and bump test lock out or reminder control, STEL /
TWA readings, peak hold, auto backlighting at alarm on a large LCD display, and it even tells the time! All of these controls
and features are operated through 2 simple glow-in-the dark, glove friendly buttons. The NiMH battery set will operate for
20 hours and will fully charge in 3 hours.

A huge capacity data logging function is a standard feature on all GX-2009 instruments. The data logging software will
store up to 100 calibration records and is Windows 10, 8, 7, XP and Vista compatible. To simplify maintenance and record
keeping, the GX-2009 MSHA has the SDM-2009 single calibration station available. The SDM-2009 calibration station can
operate as a stand-alone system or connect to a computer along with up to 10 other SDM-2009 units.

MSHA (Mine Safety and Health Administration) certification allows the GX-2009 to be used in underground mines, tunnels
and excavations under MSHA jurisdiction.

• Any application where an MSHA approved gas
monitor is required

RKI Instruments, Inc. • 33248 Central Ave. Union City, CA 94587 • Phone [phone] • [phone] • Fax [phone]

World Leader In Gas Detection & Sensor Technology

www.rkiinstruments.com

GX-2009 MSHA

Gas Detected

Sensor

Detection Range
(Increments)

Accuracy Statement

Sampling Method

Display

Preset Alarms
(User Adjustable)
Overscale alarm
(Non-adjustable)

Types of Alarms

Display of Alarm

Operating Temp. &
Humidity

Response Time

Continuous Operation

Power Source

Safety Design /
Approvals

Size & Weight

Case Material

Controls

Datalogging

Required Accessories

Standard Accessories

Optional Accessories

Configurations

Warranty

Combustible Gases

(Methane as standard)

Catalytic combustion Galvanic cell

NC-6264B OS-BM2

0 ~ 5% vol

(0.05% vol)

± 5% of reading or ±

0.1% vol (whichever
is greater)

1st alarm 0.5% vol
2nd alarm 2.5% vol
Over alarm 5% vol

Gas Alarm: 2 Increasing alarms, STEL, TWA, overscale alarm. O2 decreasing/increasing.
Trouble alarm: Sensor disconnection, low battery, circuit error, calibration range error

Gas Alarm: Flashing LEDs, intermittent buzzer (95 db @ 30 cm), flashing gas value, vibration
Trouble alarm: Flashing LEDs, intermittent buzzer (95 db @ 30 cm), display of error message

-4°F to 122°F (-20°C ~ +50°C), 0 to 95% RH, non-condensing (splash resistant)

2.7” H x 3” W x 1” D (Approx. 70 H x 75 W x 25 D mm), 4.6 ounces (approx. 130 g)

High impact over molded rubber. Dust and water resistant with IP-67 approval.

Standard with all instruments. Stores 8 alarm trend sessions where readings are recorded 30 minutes

before and after an alarm event. 3,600 data point capacity with a log time range of 10 to 300 hours

(based on programmable interval times); and stores up to 100 calibration records.

Battery charger

Alligator clip .................................................................................................................................................................... 13-0116RK

NiMH batteries (set of 2) ................................................................................................................................................ 49-1609RK

Charging station with 115/220 VAC power supply (also available without power supply, 49-2170RK) ....................49-2170RK-01

Product CD (includes datalogging software) .................................................................................................................. 71-8002RK

Belt Clip .......................................................................................................................................................................... 13-0117RK

Padded carrying case for GX-2009 and accessories................................................................................................ 20-0112RK-01

Charging station, 115/220 VAC powered for 2, 3, 4, or 5 instruments.....................................................................49-2170RK-XX

Charging station with 12 VDC power supply and vehicle adapter plug ......................................................................... 49-2171RK

12 VDC adapter with vehicle plug (does not include charger base) .............................................................................. 49-2020RK

Hand aspirated sample draw with 10’ hose and probe (up to 40’ hose available) ........................................................ 81-1160RK

USB to IrDA downloading cable .....................................................................................................................................47-5027RK

SDM-2009 single calibration station .......................................................................................................................81-SDM2009-01

• 4 gas, CH4 / O2 / NO2 / CO • 3 gas, CH4 / O2 / NO2 • 2 gas, CH4 / O2 • 1 gas, CH4

• 4 gas, CH4 / O2 / H2S / CO • 3 gas, CH4 / O2 / CO

Oxygen (O2) Nitrogen Dioxide (NO2)

ES-1826-NO2 ES-1821 ES-1827i

0 ~ 40.0% vol

(0.1% vol)

± 0.5% O2

Diffusion sampling standard / hand aspirator or motorized pump optional

Digital LCD displays all four gases simultaneously, with

Low alarm 19.5%
High alarm 23.5%
Over alarm 40.0%

20 hours after a 3 hour full charge (14 hours after 90 min charge)

Direct charging NiMH batteries, set of 2

Two glow in the dark buttons: POWER / MODE, AIR

Two years material and workmanship

0 ~ 20 ppm (0.1 ppm) 0 ~ 500 ppm (1 ppm)

± 5% of reading or ±

.5 ppm NO2

(whichever is greater)

1st alarm 1 ppm
2nd alarm 3 ppm
TWA alarm 1 ppm
STEL alarm 5 ppm
Over alarm 20 ppm

Within 30 seconds (T90)

MSHA classified

Carbon Monoxide

(CO)

Electrochemical cell

± 5% of reading or ±

5 ppm CO

(whichever is greater)

auto backlight

1st alarm 25 ppm
2nd alarm 50 ppm
TWA alarm 25 ppm
STEL alarm 200 ppm
Over alarm 500 ppm

Hydrogen Sulfide

0 ~ 100.0 ppm

± 5% of reading
or ± 2 ppm H2S

(whichever is greater)

(H2S)

(0.5 ppm)

Specifications subject to change without notice.

Toll Free: [phone] • Phone: [phone]

Fax: [phone] • www.rkiinstruments.com

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