Hanna Instruments HI9142 Portable Dissolved Oxygen Meter
The dissolved oxygen (DO) meter, model HI9142, is a tough, portable, waterproof device with removable polytetrafluoroethylene (PTFE) membrane caps and a shield that is made to deliver accurate readings in challenging environmental situations. The polarographic probe, PTFE membrane covers, electrolyte fill solution, protective shield, and tough carrying case are all included with the HI9142.
- Easily Replaceable Membrane Caps
- Waterproof
- One or Two Point Calibration
| SKU | HI9142 |
|---|---|
| Product Name | Portable Dissolved Oxygen Meter – HI9142 |
| Quote Required | Yes |
| Dissolved Oxygen Measurement Type | polarographic |
| Dissolved Oxygen Range | 0.0 to 19.9 mg/L (ppm) |
| Dissolved Oxygen Resolution | 0.1 mg/L (ppm) |
| Dissolved Oxygen Accuracy | ±1.5% F.S. |
| Dissolved Oxygen Calibration | manual in 100%; automatic in 0% DO |
| Dissolved Oxygen Temperature Compensation | automatic, 0 to 50°C (32 to 122°F) |
| Temperature Range | -5.0 to 50.0°C (23.0 to 122.0°F) |
| Temperature Resolution | 0.1°C (1°F) |
| Temperature Accuracy | ±0.2°C (±1°F) (excluding probe error) |
| DO Probe | HI 76407 with 4 m (13′) cable (included) |
| Automatic Shut-Off | After approx. 8 minutes |
| 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. |
Features
- Replaceable, pretensioned, polytetrafluoroethylene (PTFE) membranes with a screw cap design for simple filling of electrolyte and easy replacement.
- Polarographic measuring system based on the Ross and Clark polarographic measurement method
- The probe uses a platinum cathode and silver anode in an electrolyte solution using external voltage to establish a current proportional to the concentration of dissolved oxygen
- Manual one or two point calibration at 100% and automatic calibration in zero oxygen solution
- A high-accuracy, built-in linearized thermistor temperature sensor behind a stainless steel cover
- All readings are automatically compensated for temperature variations
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