HI9146 Dissolved Oxygen / °C - Meter (0 to 45 mg/L)

Product information "HI9146 Dissolved Oxygen / °C - Meter (0 to 45 mg/L)"

On-screen tutorial messages
Two point calibration
Auto endpoint
DO range up to 300%, temperature compensated
Altitude compensation up to 4000 m
Salinity compensation up to 80 g/L
Automatic calibration in air
GLP features
Low battery indicator



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.

Order Information: HI 9146-04 is supplied complete with HI 76407/4F probe with 4 m (13.1’) cable, HI 76407A membranes (2), HI 7041S electrolyte solution (30 mL), batteries, instructions and rugged carrying case. HI 9146-10 is supplied complete with HI 76407/10F probe with 10 m (32.8’) cable, HI 76407A membranes (2), HI 7041S electrolyte solution (30 mL), batteries, instructions and rugged carrying case.


Specification :
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.)