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| Brand | Geotech |
|---|---|
| Origin | United Kingdom |
| Model | GEM5000 |
| Instrument Type | Portable |
| Measured Gases | CH₄, CO₂, O₂, CO, H₂S |
| Response Time (T90) | ≤10 s (CH₄/CO₂), ≤20 s (O₂), ≤30 s (CO/H₂S) |
| Measurement Accuracy | ±0.5% vol (CH₄, CO₂, 0–70%/0–60%), ±1.0% vol (O₂, 0–25%), ±1.0% FS (CO, 0–2000 ppm), ±2.0% FS (H₂S, 0–500 ppm) |
| Measurement Ranges | CH₄ 0–100% vol, CO₂ 0–100% vol, O₂ 0–25% vol, CO 0–2000 ppm, H₂S 0–500/5000/10000 ppm |
| Operating Temperature | −10 to +50 °C |
| IP Rating | IP65 |
| Weight | 1.5 kg |
| Dimensions | 220 × 155 × 60 mm |
| Battery Life | 8 h continuous (rechargeable NiMH), full charge in ≤3 h |
| Data Storage | 10,000 IDs, 10,000 data sets, 10,000 event logs |
| Certifications | ATEX II 2G Ex ib IIA T1 Gb, UKAS ISO/IEC 17025 (Ref: 4533), MCERTS application in progress |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | GAS600 |
| Price | USD 6,750 (FOB Beijing) |
| Instrument Type | Portable |
| Detectable Gases | CH₄, CO₂, O₂, CO (H₂-compensated), H₂S |
| Response Time (T90) | ≤30 s (max across all channels) |
| Measurement Accuracy | ±0.5% vol (CH₄, CO₂, 0–70% range), ±1.0–1.5% vol (O₂), ±1.0–5.0% FS (CO/H₂S, range-dependent) |
| Measurement Ranges | 0–100% (CH₄, CO₂), 0–25% (O₂), 0–2000 ppm (CO), 0–10,000 ppm (H₂S) |
| Power | Rechargeable Ni-MH battery (8 h runtime), AC/DC adapter (100–240 V), smart charger (3 h full charge) |
| Display | 4.3″ color TFT LCD (480×272), graphical UI with multilingual support |
| Data Storage | 10,000 measurement records + 10,000 event logs + 10,000 ID tags |
| Environmental Rating | IP65 |
| Weight | 1.5 kg |
| Dimensions | 220 × 155 × 60 mm (L×W×H) |
| Housing Material | ABS/PP + TPE overmold |
| Gas Filtration | Replaceable 2.0 µm hydrophobic PTFE filter |
| Optional Modules | Temperature probe (–10 to +75 °C, ±0.5 °C), differential pressure sensor (±500 mbar, ±4 mbar), integrated flow meter (0–20 L/h), GPS geotagging |
| Origin | Italy |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | FS-200 |
| Instrument Type | Portable |
| Detectable Gases | H₂, NH₃, SF₆ |
| Response Time | T90 ≤ 5 s |
| Measurement Accuracy | ±1% of Full Scale |
| Measurement Ranges | ppm to 100% volume |
| Origin | Italy |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | FS-2 |
| Instrument Type | Portable |
| Detectable Gases | H₂, NH₃ |
| Response Time | ≤5 s |
| Measurement Accuracy | ±1 ppm (for NH₃ and H₂ at low-range configurations) |
| Measurement Ranges | 0–10 ppm / 0–100 ppm / 0–1000 ppm (user-selectable per gas channel) |
| Brand | ADEV |
|---|---|
| Origin | Italy |
| Model | FS-200 |
| Instrument Type | Portable Gas Detector |
| Detectable Gases | H₂, NH₃, SF₆ |
| Response Time (T90) | ≤5 s |
| Measurement Accuracy | ±1% of Full Scale |
| Measurement Range | ppm to 100% vol |
| Sensor Principle | Electrochemical (H₂/NH₃), Optional Catalytic Bead / Infrared / Thermal Conductivity |
| Display | 2.5" 320×240 Color TFT Screen |
| Operating Temperature | −40 °C to +70 °C |
| IP Rating | IP66 |
| Explosion Protection | Ex d IIC T6 Gb / Intrinsic Safety Certified |
| Dimensions | 180 × 78 × 33 mm |
| Weight | 350 g |
| Power Supply | Rechargeable 3.6 V DC / 5000 mAh Polymer Battery |
| Data Storage | 100,000 records (configurable interval) |
| Communication | USB, RS232, Infrared |
| Compliance | ATEX, IECEx, EN 60079-0/11/26, ISO 9001, CE |
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