The GX-3R Pro can measure up to 5 gases using 4 sensors. The GX-3R Pro measures the combustible gases (LEL), oxygen (O2), hydrogen sulfide (H2S), and carbon monoxide (CO). The GX-3R Pro can additionally measure toxic gases including carbon and sulfur dioxides (CO2 and SO2). This model displays measurement results on an LCD and issue gas alarms (via LED and buzzer) as needed. This model also wirelessly transmits measurement results to a host using Bluetooth. Gas sampling is by diffusion. The models do not have internal suction pumps.
Specification
Sampling method | Diffusion type |
Principle of detection | New Ceramic catalytic Method, Non-Dispersive Infrared Method, Potentiostatic Electrolysis Method |
Detection range | 0 to 100 %LEL (HC/CH4) 0 to 40 vol% (O2) 0 to 2000 ppm (CO) 0 to 200 ppm (H2S) 0 to 10 vol% / 0 to 10000 ppm (CO2) 0 to 100 ppm (SO2) |
Type of alarm | Gas alarm / fault alarm [option] panic alarm / man down alarms |
Display of alarm | Flashing light / buzzer / vibration |
Explosion protected construction | Intrinsic safety |
Explosion-proof class | IECEx : Ex da ia IIC T4 Ga / Ex da ia I Ma ATEX : II1G Ex da ia IIC T4 Ga / IM1 Ex da ia I Ma *With combustible gas sensor |
Ingress proof rating | IP66/68 |
Approvals | Japan Ex, ATEX, IECEx, Brazil Ex, MED, JIS, JG |
CE marking | EMC / ATEX / RoHS / RE |
Power source | Lithium ion rechargeable battery unit or Dry battery unit (AAA alkaline battery×3) |
Continuous operation | Approx. 40 hours (with long battery mode) *Depends on sensor type |
Dimensions | Approx. 73 (W) × 65 (H) × 26 (D) mm [Rechargeable battery] Approx. 73 (W) × 65 (H) × 34 (D) mm [Alkaline battery] |
Weight | Approx. 120 g [Rechargeable battery] Approx. 140 g [Alkaline battery] |
Operating temperature range | -40 ℃ to +60 ℃ (no sudden changes) |
Operating humidity range | 0 to 95 %RH (no condensation) |
Target gas | CH4, CO, CO2, H2S, HCN, i-C4H10, NO2, O2, PH3, SO2 |
Sensor Available
Combustible gas (HC) sensor | NCR-6309-H |
Combustible gas (CH4) sensor | NCR-6309-M |
Oxygen (O2) sensor | ESR-X13P |
Carbon monoxide/hydrogen sulfide (CO/H2S) sensor | ESR-A1DP-E1 |
Carbon monoxide (CO) sensor* | ESR-A1CP-E2 |
Sulfur dioxide (SO2) sensor | ESR-A13D-E3 |
Hydrogen sulfide (H2S) sensor | ESR-A13i-E4 |
Carbon monoxide (CO) sensor | ESR-A13P-E5 |
Hydrogen cyanide (HCN) sensor | ESR-A13D-E7 |
Sulfur dioxide (SO2) sensor | ESR-A13D-E3 |
Hydrogen sulfide (H2S) sensor | ESR-A13i-E4 |
Nitrogen dioxide (NO2) sensor | ESR-A13D-E6 |
Hydrogen cyanide (HCN) sensor | ESR-A13D-E7 |
Phosphine (PH3) sensor | ESR-A13D2-E8 |
Ammonia (NH3) sensor | ESR-B134-E9 |
Carbon dioxide (CO2) <vol%> sensor | IRR-0409-D1 |
Carbon dioxide (CO2) <ppm> sensor | IRR-0433-D2 |