dissolved oxygenDO

range

Dissolved oxygen DO: 0.00 to 45.00 mg/L (ppm), saturated dissolved oxygen: 0.0 to 300.0%

resolution

Dissolved oxygen: 0.01 mg/L (ppm), saturated dissolved oxygen: 0.1%

accuracy

@25 ° C/77 ° F: 1.5% F.S. or one word, whichever is greater

calibration

Single point or two-point calibration automatic calibration, zero point or air automatic 100% (8.26mg/L) calibration

temperature

range

0.0 to 50.0 ° C, 32.0 to 122.0 ° F

Resolution/accuracy

Resolution: 0.1 ° C, 0.1 ° F; Accuracy: ± 0.2 ° C, ± 0.4 ° F (ignoring temperature probe)

Compensation indicators

temperature compensation

Automatic compensation range 0.0 to 50.0 ° C, 32.0 to 122.0 ° F

Salinity compensation

Manual compensation range 0 to 80 g/L (resolution: 1 g/L)

Height compensation

Manual compensation range 0 to 4000 meters (resolution: 100 meters)

Other indicators

Standard electrode configuration

HI76407F built-in temperature sensor, polarographic dissolved oxygen electrode and electrode sheath, specifications: 4 meters or 10 meters

Power source

1.5VAAA × 3 high-quality battery

application environment

0 to 50 °C（32 to 122°F ）； RH-max95% (non condensing)

Dimension

Host size: 185 x 72 x 36 mm (7.3 x 2.8 x 1.4 "), Host weight: 300 g (10.6 oz.)

HI9146 host

Large screen background light LCD, operation guide display, battery level icon, prompt for timely battery replacement, accurate and reliable measurement, automatic compensation for height, salinity and temperature, automatic calibration function in the air, measurement results displayed in ppm (ml/L) or%.

HI7040L customized dissolved oxygen zero (0%) standard solution

Standard value: 0%, it is a dual combination zero oxygen solution suitable for calibration of polarographic and electrochemical dissolved oxygen sensors. It uses high-purity chemical reagents and high-quality deionized water, and has been rigorously certified with various measuring tools and containers. It is carefully prepared in a constant temperature and humidity environment that meets the requirements and can be traced back to NIST standard reference materials (SRM).

HI7041 customized dissolved oxygen filling solution

Tailored filling solution for polarographic dissolved oxygen electrode design; Specification: 30mL × 4, 230mL, 500mL HI7041 filling solution is customized for Hanna's polarographic dissolved oxygen electrode development. Using the correct dissolved oxygen electrode filling solution is crucial for the performance of the dissolved oxygen electrode; The polarographic sensor technology is based on the Ross and Clark polarographic measurement methods; The dissolved oxygen electrode consists of a platinum electrode and a solid silver electrode. Hana's high-quality potassium chloride solution with unique configuration is used in conjunction with PTFE (polytetrafluoroethylene) dissolved oxygen membrane and polarographic dissolved oxygen electrode; Using polarographic techniques, an external voltage is applied to the platinum cathode, silver anode, electrolyte solution, and gas permeable membrane to establish a current proportional to the oxygen concentration in the solution.

HI76407A/P, HI76407V/P custom PTFE dissolved oxygen film

The dissolved oxygen membrane separates the cathode (platinum material) and anode (silver material) of the dissolved oxygen electrode from the sample to be tested. Oxygen diffuses through the dissolved oxygen membrane and interacts with the polarographic system of the dissolved oxygen electrode to generate a current proportional to the oxygen concentration; When the dissolved oxygen membrane is not in use, the shelf life of the standard storage conditions is two years. After installation and use, it is recommended that users replace it every 6 months in a regular measurement environment.