The TCY Ⅰ 1 type acid rain automatic observation system fully complies with the definition, functions, and technical specifications of the Type I acid rain automatic observation system in the "Functional Requirements Specification" of the China Meteorological Administration.

nStructural composition

The system consists of two parts: the acid rain automatic sampling system and the acid rain automatic analysis subsystem. The automatic acid rain sampling system is installed in outdoor measurement fields to automatically collect precipitation samples and record relevant data and information during the sampling process; The acid rain automatic analysis subsystem is installed indoors to measure the pH, conductivity, and temperature of precipitation samples, and record and store relevant measurement data.

nWorking principle

The system collects atmospheric environmental precipitation in real-time through the precipitation sampling system, and sends the collected water samples to the precipitation analysis subsystem for measuring EC, pH, and temperature of the precipitation samples. Observation personnel collect data and information from the system through computers, conduct quality inspection and integration, and form a complete record of acid rain observation data.

nParameters

1pHRange of measurement parameters:0～14（0～50Automatic temperature compensation (℃)

2pHValue measurement resolution:0.01pH

3、pHAccuracy of value measurement: ±0.1pH

4、Range of conductivity measurement parameters:5～2000μS/cm（5～40℃）

5Conductivity measurement resolution:0.01μS/cm

6、Accuracy of conductivity measurement: ≤±2%F.S

7Inner diameter of dry and wet settling bucket:￠400 mm

8Timing accuracy: ±10s/month

9、Temperature measurement accuracy: ±0.3℃

10、Sensor sensitivity: better than0.05mm/h

11Opening action time: ≤15s(Can be set)

12. Closing delay time: ≤3min(Can be set)

13、Timing error: ≤0.1％

n General

1、Working temperature:10～35℃（Analysis subsystem），-50～50℃（Sampling System）

2Relative humidity: ≤100%RH（+25℃）

3Working voltage:（220±15%）V.AC

4Insulation resistance: ≥25MΩ

5Instrument power:400W(Indoor analyzer),1000 W(Precipitation Sampler)

6Wind resistance: ≥10level

nmain features

1、use10Inch industrial grade color touch LCD screen;

2、Composite inert material measuring cell, low residue; Effective suppression of algae reproduction interference measurement, can be carried outpHAnd conductivityRate measurement;

3、Automatic measurement function. CONTINUEpHReal time display of measurement data on the screen, along with conductivity values. Conduct a daily measurement of the mixed sample and record the analysis data;

4、Automatic electrode protection function. Automatic detection, daily maintenance (cleaning, infusion soaking), failure replacement information prompt and automatic operation of electrodes/Manual mode calibration, etc;

5Automatic cleaning function. After sampling is completed or timed, the pressure boosting cleaning device technology is used to automatically clean the measuring electrodes and pipelines to ensure measurement accuracy;

6The device can access observation data and status information through multiple communication methods according to the "Ground Meteorological Data Object Dictionary"ISOSSoftware. It can automatically receive detection data reported by the instrument and view information such as the operating status of the instrument;

7Data processing function. Based on the detected data, various reports or curve graphs can be automatically generated on this instrument and the upper computer;

8Alternating anti ionization and dynamic temperature control anti condensation technology for rain sensors. Eliminate errors and misjudgments caused by weather conditions such as snow, fog, and dew;

9 Flow type rain sensor design. No dead angle feeling of rain, can prevent accidental actions caused by debris and bird droppings falling in;

10All sampling structural components are adopted304Made of stainless steel material, outdoor process insulation spraying, sample barrel mouth off the ground1.4Rice;

11The host control part adopts advanced embedded system with watchdog function to ensure high reliability of the instrument;

12The dust cover can accurately and smoothly place the sampling bucket mouth inside the dust cover sponge body, ensuring the airtightness of the sampling bucket, reducing pollution and water vapor evaporation, ensuring the authenticity of the sample, and anti freezing rain design;

13The sample adopts natural convection cooling technology to ensure that the sample temperature does not exceed the ambient temperature2℃, reduce volatilization to ensure the authenticity of the sample;

14The instrument has conventional, high-altitude, and plateau versions (altitude greater than)3800Meter configuration. The high-altitude and plateau versions have heating, insulation, and snow melting functions;

15The power input has functions of voltage stabilization, lightning protection, and overload protection.

nApplicable geographical scope

The system is suitable for extreme temperatures not exceeding-50The northern region of China at ℃.