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I. Application areas: It is suitable for testing lubricants and for pharmaceutical research and development control, and it fully meets international and domestic standards such as GB265, ISO1628, ASTMD4603, JJG 155-2016, ISO307, ASTMD789, and pharmacopoeias. II. Product Description (I) The CT series of high-precision constant-temperature baths require a constant-temperature environment in order to ensure accurate and high precision in viscosity measurement! The temperature of the bathtub remains constant, with uniform temperature throughout the entire bathtub. Its unique design ensures that the temperature uniformity across the whole bathtub is above ±0.01°C, providing a very stable environment for viscosity experiments. 1 The bathtub is designed using the dual-chamber principle along with a unique circulation system: it features a mixing chamber and a measuring chamber, whereby the liquid level in the measuring chamber remains constant despite evaporation of the bath solution. The partition between the two chambers can be removed easily for routine cleaning and maintenance, and a drain valve is installed at the bottom to facilitate cleaning. 2 The thermostat is an original imported model, offering high-precision temperature control along with adaptive PID regulation capabilities. 3 Safety: In addition to having a low water level alarm function and high-temperature cut-off protection, it is equipped with an air leakage protection switch to ensure safety during use. 4 Transparent windows and lighting design allow direct observation of the inside of the bathtub as well as the testing process ； It should be noted that when the temperature is below 20°C, dew formation on the window glass can affect visual observation. 5 The inner tank is designed with stainless steel to maximize its service life. 6 multi-station design, capable of supporting automatic or manual testing at 1–6 test stations. 7 Main technical parameters: Model, temperature control accuracy, temperature uniformity, heating power, operating temperature, external dimensions. CM IDS-2 ≤±0.01°C ≤±0.01°C 1000W RT~120°C Length 65 x Width 28 x Height 56. IDS-4 ≤±0.01°C ≤±0.01°C 1200W RT~120°C Length 85 x Width 28 x Height 56. IDS-6 ≤±0.01°C ≤±0.01°C 1200W RT~120°C Length 102 x Width 28 x Height 56. (II) GB265 Viscosity measuring stand. 1 The microprocessor of the viscosity measuring stand controls the rise and free fall of the liquid within the viscometer tube; it also automatically and intelligently measures the time taken for the liquid to flow through ； 2 It uses photoelectric infrared sensors, which can automatically adjust the appropriate light intensity based on the color depth of the solution being measured, thereby meeting the needs of samples with different color intensities ； Meanwhile, the sensor features a glass fiber outer encapsulation with stainless steel processing, providing corrosion resistance, temperature tolerance, and a long service life ； 3 The inlet valve and PPS valve seat have the capability to resist strong acids and strong bases. 4 Each testing station is independent of the others; different or identical testing methods can be used to test different or identical samples. 5 Precise positioning is designed and manufactured, enabling the measurement distance to be accurate to 40 mm as specified by ISO, thus ensuring the standardization of the data. 6 Applicable viscosity tube: Zhenyue GB265 standard viscosity tube. 7 Unique defoaming technology to effectively control foaming in the liquid being measured. 8 Sample improvement method: Pressure method (can be customized based on the customer’s own samples). 9 Technical parameters: Measurement time range: 0.001–999.999 seconds; viscosity range: 0.3–5000 mm2/s; timing display resolution: 0.001 seconds; timing accuracy: 0.001 seconds or 0.1% of the measured value. Dimensions (L*W*H): 115×90×480 mm. Testing error using the capillary method: 3‰. (III) The IDS main controller is the data transmission module of the automatic viscosity tester system; it serves as a hub for transmitting data from various individual measuring units to the PC, and it can be connected to multiple measuring units. (IV) Viscosity measurement software 1 can calculate and display the following results: a) the average value of the time for a single passage and multiple passages; b) the comparison deviation method: standard/absolute/percentage deviation; c) the single-point method: kinematic viscosity, dynamic viscosity, relative viscosity, specific viscosity (viscosity number), intrinsic viscosity (limiting viscosity), and average molecular weight based on viscosity; d) extrapolation using multiple points; e) the K value according to Fickentscher; f) various internationally recognized viscosity formulas are available for selection; g) single-point methods (Zülz-Brashke equation, Hagenes equation, Solomon-Huhtala equation, Billmeyer equation, Maron equation, Martin equation). 2 The software can utilize EXL simulations to verify and check the results. 3 The software is compatible with Win7, Win8, and newer operating systems. 4 Permission management function: Operators must use the software with their own account and password, and access to the system is restricted based on the level of authorization they possess. 5 Measurement result storage and printing function: All recorded measurement results from each day are saved in chronological order or by measurement location, allowing for the viewing or printing of result reports at any time. 6 It can automatically calculate the measured results during the measurement process based on the set values for standard/absolute/percentage deviation; if the deviation exceeds the set value, the software has an automatic re-measurement function. (V) Cleaning module (optional module): 1 Each set of cleaning modules can be connected to two testing tables. 2 and it is also possible to configure two types of cleaning solutions. 3 The cleaning method involves automatically adding cleaning solution, followed by allowing the liquid to flow up and down inside the viscosity tube to carry out the cleaning process. 4 It is equipped with a built-in recovery pumping system that can draw out the liquid from the viscosity tube and collect it centrally. 5 When in use, it can be installed on the sink; it is small in size and does not take up much space