The HI9146 is a rugged, portable dissolved oxygen (DO) meter designed to provide laboratory precision and accuracy under harsh environmental and industrial conditions. This meter offers many features including automatic calibration, with auto-endpoint detection, and compensation for temperature, salinity, and altitude. The HI9146 is supplied complete with polarographic probe, PTFE membrane caps, electrolyte fill solution, 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
Specifications
- 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
Ordering Information
The 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.