Benchtop Dissolved Oxygen Meter, Polarographic
Benchtop dissolved oxygen meter with a polarographic membrane sensor reading concentration in mg/L or percent saturation, with salinity and barometric pressure correction.
Typical applications
- Effluent and BOD-related sampling
- Aquaculture and fish-farm water
- Surface and river water monitoring
- Fermentation and bioprocess sampling
- Boiler feed and process water
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Add as many products as you need and send one enquiry covering all of them, or send this item on its own. Bulk and drum quantities are quoted on request.
Worth knowing before you order
A polarographic sensor is a consumable assembly, not a solid-state probe: the membrane cap and the electrolyte are what actually wear out, and one of each is supplied. Keep spares, because a fouled or dried membrane reads low and gives no warning. Salinity and barometric pressure are corrected only after the operator types the values in — the meter does not sense either — so readings in brackish water or at altitude are only as good as the numbers entered. Calibration is in air (100%) or in zero-oxygen solution (0%); the zero-oxygen solution is not in the accessories list and is needed for the two-point routine.Specification
| Sensor type | Polarographic membrane electrode |
|---|---|
| Dissolved oxygen range | 0.00–20.00 mg/L or ppm |
| Dissolved oxygen resolution | 0.1 or 0.01 ppm, selectable |
| Dissolved oxygen accuracy | ± 0.2 mg/L or ppm |
| Oxygen saturation range | 0.0–200.0% |
| Saturation resolution / accuracy | 0.1 or 1%, selectable / ± 2.0% |
| Calibration | 1 or 2 points (100% in air, 0% in zero-oxygen solution) |
| Temperature range | 0.0–50.0 °C |
| Temperature accuracy | ± 0.5 °C |
| Temperature compensation | 0–50 °C / 32–122 °F, automatic |
| Salinity correction | 0–50 g/L |
| Barometric pressure correction | 60.0–112.5 kPa, 450–850 mmHg |
| Memory | 500 data sets with date and time |
| Display | LCD |
| Interface | USB |
| Connector | 6-pin mini-DIN |
| Stability setting | Low / high |
| Power supply | DC adaptor from AC 220 V, 50/60 Hz |
| Packing dimensions (L x W x H) | 310 x 250 x 190 mm |
| Gross weight | 2 kg |
Support available
- Installation & commissioning
- Calibration
- Operator training
- Annual maintenance contract
- Spares & consumables
Calibration is arranged through NABL-accredited laboratories under the relevant scope. We state the scope and the certificate number on the quotation — see what accreditation actually covers.
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