Geotech
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| Brand | Geotech |
|---|---|
| Origin | United Kingdom |
| Model | GA5000 |
| Instrument Type | Portable |
| Detection Target | Multi-component Gas |
| Minimum Range | ppm to 100% |
| Repeatability | ±1% FS |
| Resolution | 0.01% |
| Response Time (T90) | <20 s |
| Zero Drift | <2% FS |
| Span Drift | <2% FS |
| Linearity Error | <1% |
| CH₄ & CO₂ Measurement | Dual-channel NDIR |
| O₂, CO (H₂-compensated), H₂S, NH₃, H₂ | Electrochemical Sensors |
| CH₄/CO₂ T90 | ≤10 s |
| O₂ T90 | ≤20 s |
| CO/H₂S T90 | ≤30 s |
| Battery Life | 8 h continuous |
| Weight | 1.5 kg |
| Dimensions | 220 × 155 × 60 mm |
| IP Rating | IP65 |
| ATEX Certification | II 2G Ex ib IIA T1 Gb |
| UKAS ISO/IEC 17025 Accreditation | Certificate No. 4533 |
| 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 |