A constant temperature circulation device with a heating head, with the help of a cooling coil and the use of external circulating water or cooling liquid tank, the temperature can reach room temperature or minus 20 degrees Celsius. The water bath body is made of all stainless steel, and the outside is insulated with insulation cotton, providing an economic solution for the sample to be directly placed in the water bath for constant temperature testing, The optional external circulation adapter and external temperature sensor PT100 can be used for external temperature control and circulation applications. Suitable for temperature control, material testing, quality control, analysis, etc. of samples. Use environmentally friendly natural refrigeration. Equipped with liquid level protection function to prevent low liquid level dry burning.

Product features:
1. Waterproof operation panel, with a bright four position LED display screen, with a display accuracy of 0.1. The machine can indicate various operating states such as heating, cooling, circulation, and external temperature control;
2. Small in size, the machine is designed with moving and handling handles at the front and back, making it very convenient for users to move the machine. The machine can be directly placed on the desktop, in a fume hood, and used on the ground. When used on the ground, a mobile car can be optional;
3. Three temperature setting methods:
1) The temperature can be set by pressing the 0.1 degree button to increase or decrease;
2) You can also press and hold the button to quickly increase and decrease;
3) Quickly move the cursor to directly change the set value;
4. Intermediate PID control technology, temperature stability, stability ± 0.05 ℃;
5. Single point calibration function, which can conveniently calibrate the temperature of a certain point;
6. Immersion type pressure suction pump, with liquid pumped out at the pressure end and liquid pumped in at the suction end, can achieve multi-functional use in one machine. The large opening bath design can be used for internal and external circulation applications;
7. Internal circulation function: The internal circulation pump can stir and mix the liquid in the tank in both horizontal and vertical directions, ensuring that the temperature of the liquid in the tank is uniform at all points. The large opening bath design allows samples to be placed in the tank for constant temperature;
8. Closed external circulation function: The equipped external circulation pump can be used for closed external circulation constant temperature applications, such as reactor temperature control, condenser tube cooling, etc;
9. Open external circulation function: optional liquid level controller can achieve constant temperature circulation of external open containers, providing constant temperature for external large open containers and conducting more sample experiments;
10. The international standard M16x1 connecting nut can be configured with different joints to meet the needs of different external circulation pipe diameters;
11. The heating function and circulation function can be controlled independently or automatically simultaneously;
12. A corrosion-resistant stainless steel SUS304 water tank that does not rust after prolonged use;

Product parameters:
Product model: BC213SM
Working temperature range [° C]: RT+10... 150
Temperature stability [± K]: ± 0.03
Temperature display: LED
Display accuracy [° C]: 0.1
Temperature control method: intelligent PID
Control temperature sensor: PT 100
Heating power [W]: 2000
Cooling capacity (20 ° C) [W]:/
Pump type: pressure/suction pump
Maximum pump pressure [bar]: 0.2
Pump maximum suction [bar]: 0.1
Maximum pump flow rate [L/min]: 12
Pump connection interface [mm]: M16x1
Tank volume [L]: 13
External dimensions (WxDxH) [mm]: 300×132×150
Opening size (WxDxH) [mm]: 295x130x150
Instrument fixation method: desktop
Allow continuous operation [%]: 100
Allowable ambient temperature [° C]: 5.32
Allowable relative humidity [%]: 80
Power supply voltage/frequency [V/Hz]: 200... 230VAC/50Hz
Weight [KG]: 12.5
Packaging size (WxDxH) [mm]: 410x435x540
Order number: 101013003600