Hanna Instruments HI9146-04 Portable Dissolved Oxygen Meter
The HI9146 is a tough, transportable dissolved oxygen (DO) meter made to deliver lab precision and accuracy in challenging industrial and environmental settings. The automatic calibration, auto-endpoint detection, and correction for temperature, salinity, and altitude are just a few of the features that this meter offers. The polarographic probe, PTFE membrane covers, electrolyte fill solution, and tough carrying case are all included with the HI9146.
- Easily Replaceable Membrane Caps
- Automatic Calibration
- Good Laboratory Practice (GLP)
| SKU | HI9146-web |
|---|---|
| Product Name | Portable Dissolved Oxygen Meter – HI9146 |
| Quote Required | Yes |
| Dissolved Oxygen Range | 0.00 to 45.00 ppm (mg/L), 0.0 up to 300.0% saturation |
| Dissolved Oxygen Resolution | 0.01 ppm (mg/L); 0.1% saturation |
| Dissolved Oxygen Accuracy | ±1.5% F.S. or ±1 digit, whichever is greater |
| Dissolved Oxygen Calibration | one or two points at 0% (HI 7040 solution) and 100% (in air) |
| Dissolved Oxygen Temperature Compensation | automatic from 0 to 50°C (32 to 122°F) |
| Salinity Compensation | 0 to 80 g/L (ppt) (resolution 1 g/L) |
| Altitude Compensation | 0 to 4000 m (resolution 100 m) |
| Temperature Range | 0.0 to 50.0°C / 32.0 to 122.0°F |
| Temperature Resolution | 0.1°C / 0.1°F |
| Temperature Accuracy | ±0.2°C; ±0.4°F (excluding probe error) |
| DO Probe | HI76407 DO probe (included) |
| Battery Type/Life | 1.5V AAA (3) /approximately 200 hours of continuous use without backlight (50 hours with backlight on) |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% |
| Dimensions | 185 x 72 x 36 mm (7.3 x 2.8 x 1.4”) |
| Weight | 300 g (10.6 oz.) |
| Ordering Information | HI9146 is supplied complete with HI76407 DO probe, HI76407A pre-formed PTFE DO membranes (2), HI7041S electrolyte solution (30 mL), batteries, instructions and rugged carrying case. |
Features
- Polarographic measuring system based on the Ross and Clark method
- The probe has a platinum cathode and silver anode in an electrolyte solution held in place by a polymer membrane
- Automatic calibration at one or two points to 100% and/or 0% saturation using HI7040 bicomponent, zero-oxygen solution
- Automatic Temperature Compensation (ATC) using a high-accuracy, built-in, linearized, thermistor temperature sensor
- Altitude compensation up to 4000 meters with a 100-meter resolution
- Salinity compensation adjustable from 0 to 80 g/L (ppt) with a 1 g/L resolution to measure DO in brackish and sea water
- Auto end point mode will freeze a reading on the display once a stable measurement is obtained for consistency between multiple users
- Good Laboratory Practice (GLP allows the user to recall calibration information including date, time and calibrations points
- Replaceable, pretensioned, polytetrafluoroethylene (PTFE) membranes with a screw cap design
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