Portable Dissolved Oxygen Meter

Portable dissolved oxygen meter is one of the laboratory equipments  Robust and waterproof, the HI 9146 has a wide oxygen measuring range in mg/l and % saturation as well as temperature, salt and altitude compensation. A hand-held oxygen meter that is easy to use and excellent value for money! With 4m or 10m cable probe.

Scope of delivery: measuring device incl. oxygen probe HI 76407/XF, electrolyte solution, 2 replacement membranes, batteries in transport case.

Large user-supportive display with backlight
Wide oxygen measuring range in mg/l and % saturation
Dual display of dissolved oxygen and temperature
Automatic temperature compensation
Salt and Altitude Compensation
Robust oxygen probe with protective membrane cover

DESCRIPTION Portable Dissolved Oxygen Meter

The HI 9146 is a waterproof, microprocessor-based dissolved oxygen analyzer with automatic calibration and temperature compensation. Readings in parts per million (ppm = mg/L) or % saturation. Temperature readings are in ºC with 0.1ºC resolution (also allows compensation for altitude and salinity). A polarographic probe with protective cap for the membrane. A HOLD button fixes the reading on the display.

TECHNICAL DETAILS Portable Dissolved Oxygen Meter

HI 9146 Portable oximeter

Specifications HI 9146
O2 range 0.00 to 45.00 mg/L (ppm)
% saturation O2 0.0 to 300.0%
Temperature 0.0 to 50.0ºC
Calibration OD 1 ou 2 points 0% & 100%
Compensation Tº Automatique
Compensation d’altitude 0 to 4000m
Salinity compensation 0 to 80 g / L (ppt)
Sin Polarographic with Tº sensor
Dimensions 185x72x36mm
Weight 300g

HI 9146-04 delivered complete with HI 76407/4F probe with 4m (13′) cable and protective cap, HI 9146-10 delivered complete with HI 76407/10F probe with 10m (33′) cable, 2 replacement membranes, HI 7041S electrolyte solution (30 mL), batteries, carrying case and instruction manual.

FUNCTIONING Portable Dissolved Oxygen Meter

The HI 9146 oximeter uses a polarographic probe composed of a platinum electrode and a silver electrode. The electrodes are soaked in a concentrated solution of potassium chloride (KCl), contained in a screw cap with a PTFE membrane. An external voltage creates a potential difference between the cathode and the anode (less than 0.5V).

The external voltage applied to the platinum electrode (cathode), the silver electrode (anode), the KCl solution and the gas permeable membrane induces a current proportional to the oxygen concentration.


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