Hanna 9142 Portable Dissolved Oxygen Meter
The Hanna HI9142 is a rugged, waterproof portable dissolved oxygen (DO) meter designed for reliable water quality testing in field and environmental conditions. Using a polarographic sensor and automatic temperature compensation, this handheld meter delivers precise dissolved oxygen measurements essential for environmental monitoring, wastewater analysis, and aquaculture testing.
Key Features
- Durable Waterproof Design: Rugged, fully waterproof housing built to withstand harsh field environments and frequent use.
- Polarographic Measuring System: Uses a polarographic sensor with platinum cathode and silver anode for stable and accurate DO readings.
- Replaceable PTFE Membrane Caps: Pretensioned polytetrafluoroethylene (PTFE) membrane caps allow simple filling and replacement for ongoing field use.
- One or Two-Point Calibration: Manual calibration at 100% saturation and automatic calibration in zero oxygen solution ensure reliable performance.
- Automatic Temperature Compensation: Built-in thermistor behind a stainless steel cover compensates for temperature effects on oxygen solubility for accurate results.
- Easy to Use: Intuitive operation with automatic shut-off to conserve battery life.
- Complete Field Kit: Supplied with a polarographic probe, membrane caps, electrolyte fill solution, batteries, and rugged carrying case.
Applications
- Environmental Monitoring: Evaluate dissolved oxygen levels in rivers, streams, lakes, and groundwater to support ecological assessment and regulatory reporting.
- Wastewater & Treatment Plants: Monitor DO in biological treatment processes and effluent streams for compliance and process control.
- Aquaculture Water Quality: Ensure optimal oxygen levels for fish health and pond management in aquaculture and hatcheries.
- Field Research & Sampling: Portable design makes it ideal for on-site dissolved oxygen measurement in outdoor research and compliance sampling.
- Industrial Water Testing: Assess DO in process and cooling waters where oxygen content impacts corrosion, treatment, and quality.
Specifications
| DO Range | 0.0 to 19.9 mg/L (ppm) |
|---|---|
| DO Resolution | 0.1 mg/L (ppm) |
| DO Accuracy (@ 25°C/77°F) | ±1.5% F.S. |
| Temperature Range | -5.0 to 50.0°C (23.0 to 122.0°F) |
| Temperature Resolution | 0.1°C (1°F) |
| Temperature Accuracy (@ 25°C/77°F) | ±0.2°C (±1°F) (excluding probe error) |
| Temperature Compensation | automatic, 0 to 50°C (32 to 122°F) |
| Probe | polarographic DO probe, internal temperature sensor, DIN connector |
| Calibration | manual, at one or two points (zero and slope) |
| Battery Type / Life | 1.5V AA (4) / approx. 500 hours of use |
| Environment | 0 to 50°C (32 to 122°F); RH max 100% |
| Dimensions | 196 x 80 x 60 mm (7.7 x 3.1 x 2.4") |
| Weight | 500 g (1.1 lb.) |
| Ordering Information | HI9142 is supplied complete with HI76407 DO probe, HI76407A/P pre-formed PTFE DO membranes (2), HI7041S electrolyte solution (30 mL), batteries, instructions and rugged carrying case. |
| Warranty | 2 years (probe 6 months) |
Regular price
$689.99
Sale price$653.97
Save $36.02
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