Gas Detected | (CO) H2 Compensated | Carbon Monoxide(CO) | Hydrogen Sulfide(H2S) | H2S Only | Combustible Gases (Methane as standard) | Oxygen |
Dual Sensor |
Sensor Slot | 1 | 2 | 3 |
Detection Principle | EC | Dual EC | EC | Catalytic combustion | EC |
Detection Range (Increments) | 0 ~ 2,000 ppm (1 ppm) | 0 ~ 200.0 ppm (0.1 ppm) | 0 ~ 100% LEL (1% LEL) | 0 ~ 40% Vol. (0.1%) |
Accuracy Statement | ± 5% of reading or ± 2 ppm CO | ± 5% of reading or ± 5 ppm CO (whichever is greater) | ± 5% of reading or ± 2 ppm H2S (whichever is greater) | ± 5% of reading or ± 2% LEL (whichever is greater) | ± 0.5% of reading O2 |
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 |
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 | 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 |