OXY5401B Chinese portable trace oxygen analyzer main features of Chinese LCD, Chinese menu, Chinese notes. Microprocessor: the use of high-performance CPU chip, high-precision AD conversion technology and SMT technology, to complete the multi-parameter measurement, temperature compensation, self-test instrument, high accuracy, good repeatability. PPb levels: level of dissolved oxygen electrode coupled T402ppb and plexiglass enclosed measuring cell, high precision and no trace oxygen drift. High reliability: board structure, touch buttons, no switch knob. Design of water erosion. Electrode Diagnosis: variety of calibration methods, I0, S query performance monitoring electrodes. Network function: RS232 bi-directional communication, can be equipped with a printer or TLab1.0 communications and data processing software. Historical data: 3000 data storage. Notepad: 200 records information. Built-in real time clock: provide a time reference, and other functions. Industrial control watchdog: to ensure that the instrument will not crash. Technical Specifications Display: Chinese LCD, Chinese menu operation Measuring range: 0 ~ 100.0ug / L, 0 ~ 20.0 mg / L range automatic conversion; 0 ~ 60.0 ℃ Saturation: 0 to 200.0% Warming Range: Auto / Manual 0 ~ 60.0 ℃ Resolution: 0.1μg / L, 0.01 mg / L, 0.1 ℃ Accuracy: μg / L: ± 1.0% FS; mg / L: ± 0.5% FS, ± 0.3 ℃ Communication Interface: RS232 bi-directional communication power : 4 X 3.6V rechargeable lithium-ion battery operating time (full charge): 24 hours of continuous use. Random intelligent charging cradle with charging indicator and full charge indicator. Working conditions: ambient temperature 0 ~ 60 ℃, relative humidity ≤90℅ power-down save:> 5 years Clock Accuracy: ± 1 min / month calibration methods: one point calibration, two calibration, the slope of the calibration, manual input I0, S size, Weight: 202 * 202 * 68mm, 2.0kg standard configuration OXY5401B second table, a random charging cradle, T402ppb an oxygen electrode, glass enclosed pool measuring a Beijing Huarui Bo Yuan Science and Technology Development Company Limited 0 1 0 - 8 0 3 3 6 3 7 3 0 1 0 - 5 8 4 3 1 7 8 1 0 1 0 - 5,914,513,113,439,369,862 Address: Beijing's Fangshan District Qin Crawford Park Website: http: //www.bjhrby.com