GX-3R Specifications - Portable Gas Monitor by RKI Instruments

Specifications

Detectable Gases
Gas		Measuring Range (Increments)	Accuracy Statement	Preset Alarms
Sensor Slot 1: Carbon Monoxide (CO) & Hydrogen sulfide (H2S) *Interchangeable
H2S / CO	Dual EC	0 ~ 2000 ppm (1 ppm)	± 5% of reading or ± 5 ppm CO	A1: 25 ppm│ A2: 50 ppm A3:1200 ppm│TWA: 25 ppm STEL: 200 ppm
		0 ~ 200.0 ppm (0.1 ppm)	± 5% of reading or ± 2 ppm H2S	A1: 5 ppm│ A2: 30 ppm A3: 100 ppm│TWA: 1.0 ppm STEL: 5.0 ppm
H2S Only	EC	0 ~ 200.0 ppm (0.1 ppm)	± 5% of reading or ± 2 ppm H2S	A1: 5 ppm│ A2: 30 ppm A3: 100 ppm│TWA: 1.0 ppm STEL: 5.0 ppm
CO H2 Compensated	EC	0 ~ 2,000 ppm (1 ppm)	± 5% of reading or ± 2 ppm CO	A1: 25 ppm│ A2: 50 ppm A3: 1200 ppm│TWA: 25 ppm STEL: 200 ppm
Sensor Slot 2: Combustibles (Methane as standard)
CH4 / HC	Catalytic	0 ~ LEL (1% LEL)	± 5% of reading or ± 2 % LEL	1st: 10% LEL │ 2nd: 25% LEL 3rd: 50% LEL │ Over:100% LEL

Sampling Method	Diffusion sampling standard (hand aspirator or clip-on motorized pump optional)
Display	Digital LCD displays with 7 segment plus 14 segment plus icon
Preset Alarms (User Adjustable) Overscale alarm (Non-adjustable)	1st alarm: 25.0 ppm 2nd alarm: 50.0 ppm 3rd alarm: 1200.0 ppm TWA alarm: 25.0 ppm STEL alarm: 200.0 ppm Over alarm: 2000.0 ppm	1st alarm: 5.0 ppm 2nd alarm: 30.0 ppm 3rd alarm: 100.0 ppm TWA alarm: 1.0 ppm STEL alarm: 5.0 ppm Over alarm: 200.0 ppm	1st alarm: 10% LEL 2nd alarm: 25% LEL 3rd alarm: 50% LEL Over alarm: 100% LEL
Types of Alarms	Gas Alarm: 3 Increasing alarms, STEL, TWA, overscale alarm. O2 decreasing/increasing. Trouble alarm: Sensor disconnection, low battery, circuit error, calibration range error
Display of Alarm	Gas Alarm: Flashing LEDs, continuous buzzer (100 db @ 30 cm), flashing gas value, vibration Trouble alarm: Flashing LEDs, intermittent buzzer (95 db @ 30 cm), display of error message
Operating Temp. & Humidity	-20°C ~ +50°C [ -4°F ~ +122°F ], 10 to 90% RH, non-condensing (continuous environment) -40°C ~ +60°C [ -40°F ~ +140°F ], 0 to 95% RH, non-condensing (temporary environment, 15 minutes)
Response Time	Within 30 seconds (T90)
Power Source	Lithium-ion battery, Approx. 25 hours after a 3 hour full charge
Approvals	ATEX, CSA (Pending)
Dimension & Weight	2.2” W x 2.55” H x 1.02” D (Approx. 58 W x 65 H x 26 D mm), 3.52 ounces (approx. 100 g) without rubber booth 2.4” W x 2.63” H x 1.06” D (Approx. 61 W x 67 H x 27 D mm), 3.70 ounces (approx. 105 g) with rubber booth
Case Material	Explosion proof, dust and water resistant to IP-66/68 (2m,1h) approval. Drop height 23 ft
Controls	Two buttons: POWER / MODE, AIR
Datalogging	Logs user ID, station ID, Calibration & Bump Test history, Alarm Events & Alarm Interval Trends
Standard Accessories	Alligator clip, protective rubber boot, charger, and calibration adapter
Optional Accessories	SDM-3R calibration station RP-3R Clip-on sampling pump with 4” rubber nipple, 10’ hose and probe (up to 40’ hose available) Padded carrying case for GX-3R and accessories USB to IrDA downloading cable for datalogger
Warranty	Three years material and workmanship

Detectable Gases
Gas		Measuring Range (Increments)	Accuracy Statement	Preset Alarms
Sensor Slot 1: Carbon Monoxide (CO) & Hydrogen sulfide (H2S) *Interchangeable
H2S / CO	Dual EC	0 ~ 2000 ppm (1 ppm)	± 5% of reading or ± 5 ppm CO	A1: 25 ppm│ A2: 50 ppm A3:1200 ppm│TWA: 25 ppm STEL: 200 ppm
		0 ~ 200.0 ppm (0.1 ppm)	± 5% of reading or ± 2 ppm H2S	A1: 5 ppm│ A2: 30 ppm A3: 100 ppm│TWA: 1.0 ppm STEL: 5.0 ppm
H2S Only	EC	0 ~ 200.0 ppm (0.1 ppm)	± 5% of reading or ± 2 ppm H2S	A1: 5 ppm│ A2: 30 ppm A3: 100 ppm│TWA: 1.0 ppm STEL: 5.0 ppm
CO H2 Compensated	EC	0 ~ 2,000 ppm	± 5% of reading or ± 2 ppm CO	A1: 25 ppm│ A2: 50 ppm A3: 1200 ppm│TWA: 25 ppm STEL: 200 ppm
Sensor Slot 2: Combustibles (Methane as standard)
CH4 / HC	Catalytic	0 ~ LEL (1% LEL)	± 5% of reading or ± 2 % LEL	1st: 10% LEL │ 2nd: 25% LEL 3rd: 50% LEL │ Over:100% LEL
Sensor Slot 3: Oxygen (O2)
O2	EC	0 ~ 40.0% Vol. (0.10%)	± 0.5% O2	Low 1: 19.5%│ Low 2: 18.0% High: 23.5%│ Over: 40.0%
Sensor Slot 4: Toxics & CO2 *Interchangeable
SO2	EC	0 ~ 100.0 ppm (0.05 ppm)	± 10% of reading or ± 5 % of full scale	A1: 2 ppm│ A2: 5 ppm A3: 100 ppm│ TWA: 0.25 ppm STEL: 0.25ppm
*CO2 IR sensor available AUG 2019
CO2 %	IR*	0 ~ 10.0% Vol. (0.01%)	± 5% of reading or ± 2 ppm	A1: 0.50% Vol.│ A2: 3.00% Vol. A3: 4.00% Vol.│ TWA: 0.50% Vol. STEL: 3.00% Vol.
CO2 ppm		0 ~ 10,000 ppm (20 ppm)		A1: 5,000 ppm│ A2: N/A TWA: N/A│STEL: N/A

Common Specifications
Sampling Method	Diffusion sampling standard (hand aspirator or clip-on motorized pump optional)
Display	Full dot LCD with Autobacklight and Autorotation
Alarm Types	Gas Alarm		Trouble Alarm
	• 2 increasing alarms • STEL • TWA • Overscale alarm • O2 decreasing/ increasing		• Sensor disconnection • Low battery • Circuit error • Calibration range error • Cal or bump due alarm
	• Man Down Alarm • Panic Alarm
Display of Alarm	Gas Alarm		Trouble Alarm
	• Flashing LED's • Continuous buzzer (100 db @ 30cm) • Flashing gas value • Vibration		• Flashing LED's • Intermittent buzzer (95 db @ 30cm) • Display of error message
Operating Temp. & Humidity	-20°C ~ +50°C [ -4°F ~ +122°F ] 10 to 90% RH, non-condensing (continuous environment)
	-40°C ~ +60°C [ -40°F ~ +140°F ] 0 to 95% RH, non-condensing (temporary environment)
Response Time	Within 30 seconds (T90)
Power Source	Config	Li-ion		Alkaline
	4-gas + EC	25 hours		16 hours
	4-gas + IR	16 hours		7 hours
Dimension & Weight	2.9” W x 2.6” H x 1.06” D (Approx. 73 W x 65 H x 26 D mm), 4.58oz (with rubber boot)
Case Material	Explosion proof, dust and water resistant to IP-66/68 (2m,1h) approval. Drop height 23 ft
Bluetooth Communication	BLE: with iOS and Android phone app: RK Link
Datalogging	Logs user ID, station ID, Calibration & Bump Test history, Alarm Events & Alarm Trends
Standard Accessories	Alligator clip, protective rubber boot, charger, calibration adapter
Optional Accessories	• Padded carrying case • RP-3R Attachable sampling Pump with 4” rubber nipple, 10’ hose and probe (up to 40’ hose available) • USB to IrDA downloading cable for datalogger • SDM-3R calibration station • Hand aspirator
Safety Design / Approvals	ATEX, CSA (Pending)
Warranty	Three years material and workmanship including sensors
*specifications subject to change

Input Power	AC Adapter with 100 - 240 VAC, 47/63 Hz, 0.4A input and 5.99 VDC, 2A output provided as standard.
Environmental Conditions	• For Indoor Use Only • -10° C to 40° C, below 95% Relative Humidity, Non-Condensing
Applicable Instruments	GX-3R and GX-3R Pro
Maximum Number of Records Saved	Stand Alone: 200 calibrations, or 214 bump tests, or 469 alarm check records PC Program Controlled:. Unlimited records with software
5 Ports	3 Calibration gas, 1 fresh air and 1 exhaust
Standard Accessories	AC Adapter USB Flash Drive Inlet Air Filter 10 Foot Long Exhaust Tube One 3 Foot Long Tube for GAS Fitting USB Cable, Type A to Type B

Specifications subject to change without notice.

Pump Specifications
Flow Rate	Higher flow mode: 0.5 l/m Lower flow mode (ECO mode): 0.35 l/m
Alarm Display	Low flow alarm: Flow blinks YELLOW Low battery alarm: Power LED blinks GREEN
Power Supply	1 AA alkaline battery
Continuous Operation	Higher flow mode: 10 hours Lower flow mode (ECO mode): 16 hours
Operating temperature	-4° F to + 122° F (no sudden change)
Operating humidity range	95% RH or less (without condensation)
External Dimensions	3.23" (W) x 3.78" (H) x 1.14" (D) (body only)
Weight	4.58 oz
Explosion Proof	Intrinsically safe construction (Exia II CT 4 Ga) pending
Standard Accessories	4" tapered red rubber nozzle, AA alkaline battery, & hydrophobic filters
Optional Accessories	10' - 100' hose, 10" probe with dust filter

Specifications subject to change without notice.