T/CI 008-2021 Sea water optical chlorophyll sensor
T/CI 008-2021 Sea water optical chlorophyll sensor
Basic Information
Scope
Scope: This standard specifies the product composition, technical requirements, inspection methods, inspection rules, and marking, packaging, and transportation of seawater optical chlorophyll sensors. This standard applies to the design, production, factory inspection, and type inspection of seawater optical chlorophyll sensors (hereinafter referred to as "sensors"). Main technical content: Seawater optical chlorophyll sensors, a type of immersion sensor developed based on fluorescence spectrophotometry, can conduct in-situ, real-time, and continuous measurement of seawater chlorophyll. 5. Technical Requirements 5.1 Operating Environment The sensor operating environment is as follows: a) Operating temperature: -5°C to 40°C. b) Operating water depth: 5.2 Performance Indicators The main technical parameters of the sensor are shown in Table 1. Table 1 Technical Parameters Measurement Parameter Measurement Range Accuracy Precision Detection Limit Response Time Chlorophyll 0.1μg/L to 200μg/L ±2%FS 5% 0.05μg/L 2S 5.3 Functional Requirements 5.3.1 Operating Mode Requirements The sensor shall have the functions of continuous measurement, real-time data display, data storage, data playback, data transmission, and calibration. During continuous measurement, the sensor shall cycle through the process of "signal acquisition - calculation - processing - display - storage". 5.3.2 Data Acquisition and Transmission Requirements The data acquisition and transmission of the sensor shall comply with the following requirements: a) Sampling frequency: The signal acquisition frequency shall be not less than 1 Hz. b) Transmission rate: For serial data transmission, the transmission rate shall be not less than 9600 bit/s. c) Transmission characteristics: The bit error rate shall be not greater than 3×10-6. 5.3.3 Interface Form RS232/RS485/analog output 5.3.4 Self-Test Requirements In the self-test mode, the sensor shall be able to automatically detect whether the optical module, conversio