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The circulating water bath series includes heating and cooling constant temperature water bath HWG-CHB and heating constant temperature water bath HWG-HB. The HWG-CHB has a built-in circulation pump for internal circulation of the liquid in the tank, resulting in high uniformity up to ± 0.1 ºC. The water bath can also be expanded into a circulating water bath with magnetic stirring, and the stirring speed at each position can be controlled separately. Strong magnetic stirring can stir the liquid in the tank and also stir the sample; The HWG-HB water bath is mainly used for constant temperature applications above room temperature, with a temperature control accuracy of ± 1.0 ºC (without P at the end of the model) and ± 0.5 ºC (with P at the end of the model). The model with M is a multifunctional three purpose pot, equipped with a standard tray. Beakers of different shapes can be placed in the water tank for constant temperature, and the shell material has different materials, making it aesthetically pleasing. The studio and upper cover are made of high-quality stainless steel plates, which are corrosion-resistant, anti-aging, and have a long service life. The temperature control method adopts intelligent PID for control, with high temperature control accuracy, good uniformity, and LCD display. According to customer requirements, RS232 and RS485 ports can also be configured for online temperature detection.
1. 4.3-inch TFT color large screen display with a display accuracy of 0.1, multiple interfaces can be freely switched, and the machine's set temperature, actual temperature, liquid level, heating, speed, running/stopping and other operating states can be displayed on the screen;
2. Large opening design, with an opening size of 400 × 400, can hold more samples for constant temperature testing. A 500ml beaker can hold 16, and other specifications can also be customized according to user needs;
3. It has heating and cooling functions, which are integrated together to achieve automatic control of any temperature within the working temperature range;
4. DC brushless stirring function, strong stirring force, adjustable speed, magnetic stirring stations can be controlled separately, and stirring speed can be set separately;
5. Dual level magnetic stirring function, the first level stirring directly stirs the liquid in the circulation tank, with good temperature uniformity. At the same time, it can drive the magnetic stirring element in the beaker to stir, making the sample cup evenly stirred for questioning;
6. Horizontal structure design, convenient to place on the desktop for use;
7. The material in contact with the liquid is uniform and high-quality stainless steel: stainless steel sink, stainless steel coil, float ball, heater, sensor, pipeline, etc;
8. Equipped with internal circulation function, good temperature uniformity, and independent control of internal circulation;
9. Temperature control three-level safety protection function: Level low liquid level float, reminding users to add liquid when the liquid level is low, and stopping the machine if the user does not add liquid for processing; The second level hardware overheating protection function automatically cuts off the heating power supply when dry burning occurs, preventing the occurrence of fires; Third level over temperature protection function, alarm protection for abnormal exceeding high temperature limit and low temperature limit. The third level protection function complies with safety level III (FL) in DIN12876 standard and is suitable for combustible and non combustible liquid media;
10. Equipped with a drain valve for easy liquid discharge;
11. Standard sink cover and adjustment ring, capable of fixing and testing sample cups of different specifications;
12. High cooling capacity and fast cooling speed;
| Model | Temp. range [ºC] |
Temp. stability [ºC] |
Temp. uniformity [ºC] |
Heat power [W] |
Refrigeration capacity [W]@20ºC |
Bath open (WxDxH)[mm] |
Overall dimensions (WxDxH)[mm] |
Net weight [kg] |
| HWG-CHB16 | -5...100 | ±0.05 | ±0.1 | 2000 | 300 | 325×355x150 | 580×425x235 | / |
| HWG-CHB40 | -5...100 | ±0.05 | ±0.1 | 2000 | 750 | 400×400x250 | 640×440x350 | / |
| HWG-CHB150 | -20...100 | ±0.1 | ±0.2 | 3000 | 3000 | 730x460x450 | 991x1100x781.5 | / |
| HWG-CHB250 | -20...100 | ±0.1 | ±0.2 | 3000 | 3000 | 885x614x450 | 991x1100x781.5 | / |
| HWG-CHB16-1x2 | -10...100 | ±0.05 | / | 2000 | 300 | 325×355x150 | 580×425x235 | / |
| HWG-CHB32-2x2 | -10-...100 | ±0.05 | / | 2000 | 750 | 400×400x200 | 630×420x350 | / |
| HWG-CHB32-3x3 | -10...100 | ±0.05 | / | 2000 | 750 | 400×400x200 | 630×420x350 | / |
| HWG-HB16H | RT+5...100 | ±0.05 | ±0.1 | 2000 | / | 325×355x150 | 580×425x235 | / |
| HWG-HB40H | RT+5...100 | ±0.05 | ±0.1 | 2000 | / | 400×400x250 | 640×440x350 | / |
| HWG-HB27H | RT+5...100 | ±0.1 | / | 2000 | / | 500×300×200 | 580×425×325 | / |
| HWG-HB150H | RT+5...100 | ±0.1 | / | 3000 | / | 730×460×450 | 991×1100×7815 | / |
| HWG-HB250H | RT+5...100 | ±0.1 | / | 3000 | / | 885×614×450 | 991×1100×781.5 | / |
| HWG-HB16H-1x2 | RT+5...100 | ±0.05 | ±0.1 | 2000 | / | 325×355x150 | 580×425x235 | / |
| HWG-HB24H-2x2 | RT+5...100 | ±0.05 | ±0.1 | 2000 | / | 400×400x150 | 640×440x350 | / |
| HWG-HB32H-2x2 | RT+5...100 | ±0.05 | ±0.1 | 2000 | / | 400×400x200 | 640×440x350 | / |
| HWG-HB50H-2x4 | RT+5...100 | ±0.2 | ±0.1 | 2000 | / | 800×400×120 | 950×460×287 | / |
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