Online microgram level dissolved oxygen analyzer

>A. Secondary Table B. Outline Drawing of Electrode and Flow Cell

The AD38-2005 dissolved oxygen analyzer is a new ppb level dissolved oxygen analyzer designed specifically for measuring ppb level dissolved oxygen in boiler feedwater and condensate water based on new polarographic analysis technology. We have adopted a series of excellent analytical techniques and equipped them with BJC's high-temperature resistant dissolved oxygen film head, ensuring stability and accuracy at low concentrations. There have been significant improvements in measurement performance and usage environment, with features such as Chinese display, Chinese menu operation, and powerful functionality. It can be widely used for continuous monitoring of dissolved oxygen values in solutions such as thermal power, chemical fertilizers, metallurgy, environmental protection, pharmaceuticals, biochemistry, food, and tap water.
Main features
Chinese LCD display, Chinese menu style, Chinese note taking. Microcomputerization: Using high-performance CPU chips, high-precision AD conversion technology, and SMT surface mount technology, it completes multi parameter measurement, temperature compensation, automatic range conversion, instrument self-test, with high accuracy and good repeatability. High reliability: Single board structure, touch sensitive buttons, no switch knob or potentiometer. DC+pulse polarization voltage: greatly enhances stability during low concentration measurements. The instrument adopts four calibration methods to ensure the accuracy of measurement. Good data processing method: reduces the impact of membrane deformation, temperature, and flow rate changes on measurement values by hundreds of times. Fast response, stable zero point, and small drift. Prefabricated long-life permeable membrane, C. electrode cross-section diagram

Easy to replace. Waterproof and dustproof design: protection level IP65, suitable for outdoor use. ● Alarm function: Alarm signal isolation output, alarm upper and lower limits can be set arbitrarily, alarm hysteresis cancellation. Historical curve: Continuously record data for one month, with one point every five minutes. ● Notepad function: Record 200 pieces of information. Manual current source: convenient for recording and testing devices. Built in real-time clock: provides time benchmarks for various functions, etc. Industrial controlled watchdog: Ensure that the instrument does not crash. Password management: Both parameter settings and maintenance are password protected.
Technical Parameter
■ Display mode: Chinese LCD display, Chinese menu operation ■ Measurement range: 0-1000ug/L, 0-20.0mg/L
Automatic range conversion; 0-60 ℃ ■ Temperature compensation range: automatic/manual 0-60 ℃ ■ Resolution: 0.1 μ g/L, 0.01 mg/L, 0.1 ℃ ■ Accuracy: μ g/L: ± 1.0% FS; mg/L: ± 0.5% FS, ± 0.3 ℃ ■ Current isolation output: Software set 0-10 mA (load<1.5 k Ω) or 4-20 mA (load<750 Ω) ■ Alarm relay: AC220V, 3A, alarm signal isolation output ■ Protection level: IP65 ■ Power supply: AC220V ± 22V, 50Hz ± 1Hz ■ Working conditions: ambient temperature 0-60 ℃, relative humidity ≤ 90 ℅ ■ Power failure storage:>10 years ■ Weight and size: 0.8kg, 146 × 146 × 108 mm ■ Hole size: 138x138mm ■ Secondary meter installation method: hole type/wall mounted/rack mounted/pipeline type ■ Electrode installation method: flow type/sinking type/flange type/pipeline type ■ Electrode selection: polarographic electrode