The GX-3R Pro one to five gas, personal monitor, picks up where the GX-2009 left off. The GX-3R Pro is the worlds smallest four gas, personal monitor weighing only 110 games and can comfortably be worn within workers breathing zone (55mm W x 64mm H x 26mm D). It simultaneously monitors and displays LEL combustibles, O2, CO (Hydrogen compensated CO also available), and H2S.
Optional Health and Safety defines the breathing zone as a 25cm radius around the worker’s nose and mouth and requires that worker exposure air samples collected in the breathing zone. Air sampling filters may be attached to the collar or lapel. Traditionally this means only a single gas monitor would be small enough for a worker to wear ‘In the breathing zone practically’. Now there is a four gas monitor smaller than many single gas monitors.
The GX-3R Pro represents the latest evolution of gas detection technology utilising a new generation of microsensors. The LEL sensor has a unique design, with two active filaments in one sensor to increase its resistance to silicone poisoning. If one filament gets poisoned, the second filament takes over. The new O2 sensor is electrochemical with a 5-year life span. H2S and CO are now available in a combo microsensor.
Safety supervisors will appreciate the non-compliance indicator. The instrument flashes it’s 3 LED lights every 30 seconds, if the device has been exposed to a gas or has not been bump tested or calibration is due. The 3 LED lights will continue to flash once every 30 seconds until the non-compliance condition has been resolved.
Gas Detected |
(CO) |
Carbon Monoxide(CO) | Hydrogen Sulfide(H2S) | H2S Only |
Combustible Gases |
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Dual Sensor |
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Sensor Slot |
1 |
2 | |||||
Detection |
EC | Dual EC | EC |
Catalytic combustion |
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Detection Range (Increments) |
0 ~ 2,000 ppm |
0 ~ 200.0 ppm (0.1 ppm) |
0 ~ 100% LEL |
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Accuracy Statement |
± 5% of reading |
± 5% of reading or ± 5 ppm CO (whichever is greater) |
± 5% of reading or ± 2 ppm H2S (whichever is greater) |
± 5% of reading |
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Sampling Method |
Diffusion sampling standard (hand aspirator or clip-on motorized pump optional) |
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Display |
Digital LCD displays with 7 segment plus 14 segment plus icon |
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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 |
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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 |
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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 |
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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) |
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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 |
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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 |
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Warranty | Three years material and workmanship |
Manufacturer | Riken Keiki (RKI) |
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Manufacturer Part Number | R72-PAC-C |
Product Series | RKI GX-3R Series 4 and 5 Gas Personal Monitors |
Product Type | Gas Monitors |
Size / Operation | Handheld, Pocket-sized, Rugged |
Battery Capacity | 25 hours after a full 3 hour charge |
Case Included | Available Seperately |
Protection Level | Dust-Proof, IP68 Protected from long term water immersion |
Device Connectivity via | USB |
Industry | Installers and Contractors (OSP), Telecommunications, Mining, Off-shore and Remote, Transportation, Utilities |
Applications | Access Construction (Underground, Aerial), Drop Construction (Aerial, Underground), Long-haul installation, OSP (Out Side Plant), NBN (National Broadband Network), Personal Gas Detection Monitors, Coherent communications, Testing of high speed optical receivers, Installers and Telco Contractors |
Operating Temp. (Min) | -40°C |
Operating Temp. (Max) | 60°C |
Temperature Range. | Wide Range |
Recommended Calibration Interval | 1 Year |
Standard Package Contains |
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Warranty | 3 Years |
Warranty Notes | AusOptic Genuine Product Guarantee Authorised distributor, benefit from manufacturer-backed, local warranty coverage, genuine parts, and our experienced local support team |