Main features
The domestic and foreign host cores adopt 32-bit computers, ARM systems, CAN buses, and 5G mobile wireless data communication technology, which facilitates interconnection and interoperability with existing networks. Wherever there is a Chinese wireless communication network, it is easy to access the main data of the instrument panel and set alarms through 5G mobile phones. Realize high reliability, high precision, high speed, convenient management, and enable users to fully enjoy subsequent value-added services.
The full Chinese character menu displays multiple parameters on the same screen, with eight key positions for operation. Two key positions are backlight keys, with adjustable backlight for easy operation.
The separated back cover structure of the host facilitates installation and wiring.
Adopting discrete electrodes and a unique electrode cup structure, it is convenient to disassemble the electrodes, making the measurement values more stable.
The transmitter has strong resistance to flow fluctuations and interference: It adopts a special design of 316SS stainless steel flow transfer tank and a flow meter, which optimizes the flow rate and pressure of the water sample, making the flow direction of the water sample more suitable for pure water measurement, shielding and eliminating the unstable measurement value caused by the electrode pure water flow potential. The design of the solution ground reliably eliminates interference from the ground circuit.
Strong resistance to salt bridge solution pollution: By using separate reference and measurement electrodes, the pollution of the salt bridge solution is eliminated due to the separation of the reference and measurement electrodes. The reasonable design of the flow measurement pool eliminates the influence of flow rate on measurement.
Good stability: The outer cover of the flow channel is equipped with electrode position markings to ensure that after calibration or replacement of the electrode, the electrode returns to its original position and remains fixed, ensuring unchanged testing performance and further ensuring the accuracy and stability of signal transmission.
● Easy calibration: Equipped with a calibration cup, making installation, calibration, and maintenance very convenient.
Ultra low maintenance: Adopting the HD-9522 pH ultrapure water measurement system, it changes the impression of users that the general pH meter used on site is more complex to use and requires a large amount of maintenance. It has good accuracy and long-term stability. The maintenance work at ordinary times is very little, and the number of calibrations is greatly reduced. It overcomes the problem that the transmitter often exceeds the range when using gel type composite electrode, which requires constant calibration and electrode replacement.
Long filling liquid addition cycle: The setting of the super large reference buffer bottle can extend its addition cycle to once every two months, and the reference liquid can be added at any time, with ultra-low maintenance costs.
● Diversified installation: This system can be installed on a tray or wall mounted.
The data adopts Samsung's storage technology from South Korea, greatly increasing the amount of data. It can store tens of thousands of sets of measurement data and 5000 system operation records (known as the 5000 notepad function).
Introduction to Stability of pH Ultra Pure Water Measurement System
Most conventional online pH monitors often generate a flowing potential when measuring ultrapure water samples with a conductivity of ≤ 0.10us/cm, which is prone to drift and interference. On the contrary, the stability performance of this HD-9522 ultrapure water pH measurement system reaches a pH change of ≤ 0.10 within a week (within the flow range of 50-500ml/min), without the common defects of unstable liquid connection potential, unstable test values, and inaccuracies during ultrapure water transmission.
Extensive testing results in a wide range of environments have proven that this HD-95
Introduction to Stability of pH Ultra Pure Water Measurement System
Most conventional online pH monitors often generate a flowing potential when measuring ultrapure water samples with a conductivity of ≤ 0.10us/cm, which is prone to drift and interference. On the contrary, the stability performance of this HD-9522 ultrapure water pH measurement system reaches a pH change of ≤ 0.10 within a week (within the flow range of 50-500ml/min), without the common defects of unstable liquid connection potential, unstable test values, and inaccuracies during ultrapure water transmission.
The extensive testing results in a wide range of environments have demonstrated that the pH transfer unit of this HD-9522 ultra pure water system exhibits outstanding performance. Near 0.055 μ The HD-9522 ultrapure water pH transfer unit still exhibits good stability and accuracy under the condition of S/cm theoretical pure water. The flow rate of the water sample varies between 50ml/min and 500ml/min, and the test value is still not affected by the flow rate change. Even beyond this range, there is less sensitivity to flow rate and minimal peak to peak noise.
It is the best choice for ultrapure water pH transmission to use special, ultra-low ion concentration, self-contained pressure flow filling liquid reference electrode instead of gel electrode, because it permeates not ions, but almost the entire internal filling liquid. In fact, most measurement issues with pH electrodes arise from the reference. Different from the gel electrode, the internal ion concentration has not changed, and the reference potential of the reference electrode itself is stable, ensuring long-term stability. The reference liquid flows smoothly and naturally outward, avoiding a series of problems such as blockage and poisoning of the liquid boundary.
The dual liquid boundary structure ensures the consistency of the liquid boundary potential in high concentration standard solution and low ion concentration pure water, resulting in a pH error of less than 0.10 caused by calibration.
The exquisite structural design also reduces the internal pressure required to ensure that the reference electrode is in the best performance state, making the system more compact and reducing space. It can be easily installed on the sampling rack.
allocation
Divided into short distance ≤ 10m and long distance ≤ 10000m (distance between electrode and host), our company adopts CAN bus for long distance. The standard configuration is a short distance of ≤ 10m.
