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| Brand | Southland |
|---|---|
| Origin | USA |
| Model | MOMD480, MOMD525 |
| Measurement Principle | Electrochemical (Galvanic Cell) |
| Range Options | 0–1%/5%/10%/25%/100% (MOMD480) |
| Accuracy | ±1% FS |
| Display | Backlit Color LCD |
| Enclosure Rating | IP66 / NEMA 4X |
| Output | Dual Adjustable Relay Alarms (MOMD525) |
| Operating Environment | Inert, N₂, H₂, CO₂-containing, or mixed gas matrices |
| Compliance | CE, Class I, Div. 1, Groups B, C, D (MOMD625 variant) |
| Brand | MNK |
|---|---|
| Origin | Beijing, China |
| Model | MY501 |
| Measurement Principle | Potentiometric Electrochemical (Fuel Cell) |
| Range Options | 0–10 ppm, 0–100 ppm, 0–1000 ppm, 0–1 %, 0–25 % O₂ |
| Accuracy | ≤1 % FS (for 0.00–10 ppm range) |
| Repeatability | ≤±1 % FS |
| Response Time (t₉₀) | ≤30 s |
| Resolution | 0.1 ppm |
| Sample Flow Rate | 1000 mL/min |
| Inlet Pressure | 0.05–0.1 MPa |
| Output Signals | 4–20 mA / 0–1 V / 0–10 V DC (selectable) |
| Operating Temperature | –5 °C to +45 °C |
| Relative Humidity | ≤90 % RH (non-condensing) |
| Sensor Lifetime | 24 months (at 25 °C, 1 atm, avg. [O₂] < 1000 ppm) |
| Power Supply | DC 12 V |
| Dimensions (W×H×D) | 212 × 290 × 194 mm |
| Weight | ~2 kg |
| Enclosure Fitting | 1/8″ OD compression fitting |
| Calibration Gas | N₂-based standard with 80 % of full-scale O₂ concentration |
| Compliance | Designed for industrial process monitoring per IEC 61000-6-2/6-4 EMI immunity & emission standards |
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