
GNST-223SZ Miniature Water Quality Automatic Monitoring Station
The GNST-223SZ multi parameter water quality monitoring base station can achieve simultaneous measurement of multiple water quality parameters, including dissolved oxygen, pH, conductivity, turbidity, COD, chlorophyll, blue-green algae, etc. The host collects and processes data measured by various digital sensors through the RS-485 (Mod buS/RTU protocol) bus, and transmits the data to the touch screen for display. At the same time, the sensor measurement values stored in the PLC can be read by the user. There are multiple windows displayed on the touch screen, which can display real-time data measured by various sensors.
The GNST-223SZ multi parameter water quality monitoring base station extracts the water sample to be tested through a water pump and sends it to the water tank. The water sample undergoes coarse filtration without additives, ensuring consistent water quality. Multiple windows can be displayed on the touch screen, which can display real-time data measured by various sensors. At the same time, relay actions can be controlled according to user set parameters.

Product Features
Adopting an industrial grade 32-bit processor and supporting serial port configuration.
Power input: 220vac, built-in reverse protection and overvoltage protection.
Support data collection, storage, and alarm functions, wireless data transmission function, and customized data network port data collection.
The electrical control unit cabinet is equipped with components such as PLC, relays, signal lights, and air switches. PLC is used to control solenoid valves, water intake pumps, and backwash pumps.
The lightning protection grounding of the station building requires a resistance of less than 10 ohms.
The main components of the water collection unit include water collection structures, water collection pumps, water collection pipelines, electric ball valves, and other equipment.
The water distribution and pretreatment unit consists of a water sample distribution unit, a five parameter sedimentation tank, filters, pipelines, and controllers.
The cleaning subunit consists of cleaning internal pipelines and cleaning external water collection pipelines, automatically cleaning water collection, distribution, pretreatment related pipelines, five parameter tanks, sedimentation tanks, filters, etc,
Prevent algae growth, sedimentation, and filter blockage in pipelines, five parameter tanks, and sedimentation tanks to ensure that the internal system pipelines are not affected by algae.
Including supporting facilities such as water pipe connection, clean water pipe connection, drainage pipe discharge, and fireproof sealing materials.
Product parameters
Name | parameter |
Routine testing items | PH, COD, ammonia nitrogen, dissolved oxygen, conductivity, turbidity, blue-green algae, chlorophyll |
Host | Reliable operation, anti-interference, 8-channel relay output. |
Analog module | 4-channel analog output, 4-20mA, 0-20mA, 0-10V, a total of three options available |
Display | 7-inch TFT LCD. |
Water tank size | 220X400X250mm600mmx700mmx1700mm |
Base station cabinet size | 220W; Rated head: 20m; Suction distance: 9m; Maximum flow rate: 28L/min; |
Self priming pump power | The material of the water pipe is imported UPVC, with a diameter of DE20; The material of the water tank is imported UPVC |
Inlet and outlet pipelines | Imax:40KA; UP:12KV |
Lightning surge protection device | 220VAC 50 ± 0.5HZ power input (overall equipment power supply) |
Power supply | Parameter |
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223SZ

223SZ
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