测量范围： 0 to 150 mg/L（ppm）O2、0 to 1500 mg/L（ppm）O2、0 to 15000 mg/L（ppm）O2

Unique SMD microcomputer control technology, high-quality narrow band filter, temperature compensated LED optical system, built-in reaction timer, ensuring the results between sample measurement and user *, compact overall design, waterproof sample pool, ensuring fast and accurate measurement, good reproducibility, with calibration function and built-in software adjustment function, applied in scientific research, metrology for sample testing and identification.

Performance Features Highlights

Equipped with unique SMD microcomputer control technology, high-performance narrowband filter and temperature compensated LED light source system, new waterproof design, exquisite portability, and background light display screen.

▷ Factory and user-defined dual calibration function, automatic memory of the last zero calibration, no need for frequent zero calibration, good GLP function, automatic shutdown setting.

Unique IRiM infrared data transmitter [recommended ET214050] design, 16 sets of data storage, can be accessed and read at any time, convenient for on-site data organization and recording, and easy to connect with a computer for data transmission.

Technical Specifications

ET99109 [Horizontal Version]

measurement range

0 to 150 mg/L（ppm）O2 、0 to 1500 mg/L（ppm）O2、0 to 15000 mg/L（ppm）O2

resolution

1 mg/L（ppm）、1 mg/L（ppm）、10 mg/L（ppm）

Accuracy @ 20 ° C

±3.5 % F.S.

optical system

Waterproof sample pool, temperature compensated LED optical system;

Dual wavelength of 430 nm and 610 nm, with Δ λ=5 nm; Resolution: 0.01A

Method Standard

Reference water and wastewater standard methods, 18th edition, potassium dichromate/sulfuric acid colorimetric method [ISO 15705:2002]

calibration mode

Automatic zero point calibration, factory calibration, and user-defined dual calibration modes

data management

16 sets of data storage, which can be accessed at any time; Cooperate with ET214050 IRiM infrared data transmitter for convenient data transmission with PC

Power mode

4 x 1.5AAA battery, automatically shuts down after 10 minutes without operation, LCD backlight

Applicable Environment

5 to 40 ° C, RH: 30 to 90% non condensing

Dimensions & Weight

Host size: 190 × 110 × 55mm, host weight: 450g

certification standard

CE certification, IP68 (under 0.1m conditions, 1 hour)

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