First of all, whether it is sewage, exhaust gas or noise, monitoring instruments and data acquisition and transmission instruments (data acquisition instruments) need to be installed at the discharge port site. Due to the harsh environment, the requirements for instruments and Equipment are very high, so the equipment must It is industrial grade and has certain protection capabilities. Secondly, the acquisition accuracy and acquisition capability of the data acquisition transmitter can meet the requirements, and a variety of communication means are available to meet the requirements of normal reporting of data under different conditions. Again, the stability and reliability of each instrument is better to minimize maintenance costs.
The pollution source online monitoring system has strong real-time performance. Compared with the short message service, because GPRS has real-time online characteristics, the system has no time delay and can receive and process various data of multiple/all monitoring points synchronously without round robin. It can meet the requirements of the system for real-time data collection and transmission. The collected pollution data and alarm information can be timely sent to the environmental protection monitoring department through the GPRS network to realize timely management of the pollutant discharge unit or individual, which can greatly improve the work efficiency of the environmental protection department. The pollution source online monitoring system can remotely control the instruments and equipment of each monitoring point. The GPRS two-way system can also realize reverse control of instruments and equipment, such as time correction, status report, switch and other control functions, and can perform remote online upgrade of the system. The construction cost is low, because the GPRS public network platform is adopted, there is no need to build a network, only the equipment can be installed, and the construction cost is low.
The data transmission rate of the pollution source online monitoring system is high, and the data transmission amount of each environmental information collection point is within 10Kbps. The transmission rate of GPRS network can reach 171.2kbit/s theoretically. The actual data transmission rate of GPRS is about 40Kbps, which can fully meet the data transmission rate (≥10Kbps) of this system. The communication cost is low, the monthly billing method is adopted, and the operation cost is low. It has good scalability. Since the current GSM/GPRS network has covered most of the provinces, there is basically no blind zone, and a wide range of online monitoring can be realized. Environmental protection information collection and transmission system requirements for coverage. The transmission capacity of the system is large, and the environmental protection center station must realize real-time connection with each environmental information collection point. Due to the large number of environmental information collection points, the system requirements can meet the needs of sudden data transmission, and GPRS technology can well meet the needs of transmitting bursty data.

Pool Ph Test Strips

Total alkalinity measures the amount of alkaline substances (primarily, bicarbonates and carbonates) in your water. The total alkalinity is in the right range at 100 to 120 ppm (parts per million) if sodium dichlor, trichlor or bromine is being used as the sanitizer. Total alkalinity levels of 80 to 100 ppm are considered to be in the right range if calcium, sodium, or lithium hypochlorite is being used as a sanitizer.

pH refers to the intensity of acid or alkaline materials in your water. A pH of 7.0 is considered neutral. The right pH range for pool and spa water is 7.2 to 7.8, with an ideal range of 7.4 to 7.6.

Pool Ph Test Strips,Ph Test Range 0-14,5-Way Water Test Kits,Accurate Ph Scale Kits

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