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This instrument is widely used in research institutes, universities, enterprise quality inspection and production departments in petroleum, chemical industry, electronic instruments, physics, chemistry, bioengineering, medicine and health, life science, light industry, food, physical property testing, chemical analysis and other fields. It can provide a liquid environment with controlled heating and cooling and uniform stable temperature for users to conduct constant temperature tests on test samples or manufactured products. It can also serve as heat/cold source for direct heating/cooling and auxiliary heating/cooling.
The high and low temperature constant temperature bath adopts the latest international advanced refrigeration system with stable and reliable performance.
It is equipped with internal and external circulation:
The internal circulation can directly carry out constant temperature tests on test samples or manufactured products inside the bath.
The external circulation function uses a high-pressure pump to circulate the liquid medium in the bath at constant temperature, improving temperature uniformity inside the bath and reducing temperature fluctuation.
Working principle
Its working principle is to lead the constant-temperature medium out of the bath through the water outlet and heat-preserving hose to build external constant temperature, supplying constant-temperature cooling liquid for tests, experiments or production and providing a liquid environment with uniform and stable temperature. The cooling liquid can be recycled and reused.
Unique large-screen backlit LCD display. Set temperature and actual temperature can be shown independently; functions including "Heating", "Refrigeration", "Internal and External Circulation" can be started or shut down separately; working status information is clear and legible.
The control part adopts ABS molded design. The overall streamline appearance is elegant. The finely crafted front panel and platform of the cabinet together with unique humanized rounded corner structure prevent operators from accidental injuries caused by sharp cabinet edges. The whole set adopts molded foam packaging with upper and lower matched molds to avoid damage during transportation.
High-performance stirring circulation motor with low noise, low heat generation, fully enclosed structure and long service life. Heat-free circulation pump is adopted to prevent the traditional water pump from affecting the temperature field inside the bath due to self-heating.
304 stainless steel platform and inner tank. Besides, the refrigeration coil is added with positioning and surface treatment technology, which can effectively solve the shaking of refrigeration coil during transportation or use and prevent corrosion and rust.
The motor impeller is fully enclosed to eliminate potential safety hazards. Multiple safety protections: low-liquid-level dry-burning protection for heating tube; both light and sound alerts will be triggered for alarms.
Power failure protection and overtemperature alarm functions are equipped to provide multiple safety measures.
Refrigeration by fully enclosed compressor unit; the refrigeration system is equipped with multiple protection devices against overheating and overcurrent.
The instrument is specially designed with flexibly detachable surrounding door panels to achieve better refrigeration effect. Dust cleaning after long-time operation is convenient without any disassembly tools.
The instrument works stably and reliably with convenient and safe operation. The meter has temperature calibration and auto-tuning functions.
The circulation ports and drain outlet all adopt 304 stainless steel barbed fittings for fast and reliable installation. The drain valve is built-in and hidden for elegant appearance, which can effectively avoid unnecessary damage during shipment or transportation.
The instrument is standard equipped with two sections of circulating silicone tube plus thermal insulation sleeve for flexible use by customers.
Model | RHC-1220H |
Water Tank Capacity (L) | 15L |
Temperature Range | -20~200℃ |
Heating Power | 1500W |
Cooling Power | 420W |
Cooling Capacity | 600W |
Refrigerant | R134a, approx. 190g |
Display Precision | 0.1℃ |
Temperature Control Precision | ±0.1℃ |
Inner Tank Size | 300x250x210mm |
Working Tank Opening Size | 235x160mm |
Container Size Acceptable in Inner Tank | 225x160mm |
External Circulation Pump Flow Rate | 10L/min |
Head | 3M |
Pump Pressure | 0.1bar |
Temperature Display Mode | LED |
Outer Diameter of External Circulation Connector | 10mm barbed fitting |
Instrument Size (LxWxH)(mm) | 510x370x830 |
Packing Size (LxWxH)(mm) | 600x450x1000 |
Net Weight | 36kg |
Gross Weight | 46kg |
Packaging | Wood pallet + honeycomb box |
Optional Functions | Temperature control precision: 0.01℃ |