Portable Dissolved Oxygen Meter
HI 9146 is a water-resistant, dissolved oxygen meter that measures up to 300% saturation or 45 ppm (mg/L) with temperature compensation and automatic calibration. It has been developed for DO and temperature measurement in water, wastewater, wine and applications such as fish farming.
This instrument also allows altitude compensation up to 4000 m and the ppm and % saturation are both compensated for changes in solubility of oxygen in water and for permeability of the membrane as well as the temperature effect.
The included polarographic probe features built-in temperature compensation and removable protective membrane cover.
Range O2 0.00 to 45.00 mg/L
Range % Saturation O2 0.0 to 300.0%
Range Temperature 0.0 to 50.0°C
Resolution O2 0.01 mg/L
Resolution % Saturation O2 0.1%
Resolution Temperature 0.1°C
Accuracy O2 ±1.5% F.S.
Accuracy % Saturation O2 ±1.5% F.S.
Accuracy Temperature 0.5°C
Calibration automatic, in air, at 100%
Temperature Compensation automatic, 0 to 50°C (32 to 122°F)
Altitude Compensation 0 to 1900 m (100 m 326′ resolution)
Salinity Compensation 0 to 40 g/L (1g/L resolution)
Probe HI 76407/4F with 4 m cable
Power Supply 4 x 1.5 AA batteries / approx. 200 hours of continuous use;
auto-off after 4 hours of inactivity; or input for 12 Vdc power adapter
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.)
HI 76407/4F DO Probe with Protective Sleeve, 4 m cable
HI 76407/10F DO Probe with Protective Sleeve, 10 m cable
HI 7040L Zero Oxygen Solution
HI 7041M Refilling Electrolyte Solution, 230 mL
HI 7041L Refilling Electrolyte Solution, 500 mL
HI 7041S Refilling Electrolyte Solution, 30 mL
HI 76407A/P Membranes for DO Probes