Freezing water bath constant temperature shaker

Water bath shaker,Freezing water bath constant temperature shakerThe product is widely used in bacterial culture, fermentation, hybridization, biochemical reactions, enzyme and cell tissue research that require high temperature and oscillation frequency. It has a wide and important application in research fields such as medicine, biology, molecular biology, pharmaceuticals, food, and environmental protection.

1Freezing water bath constant temperature shakerTechnical parameters:

1. Product model: SHA-2 (microcomputer controlled LCD high-end model)

2. Working power supply: AC 220V, 50Hz

3. Temperature control range: 0-100 ℃ (with refrigeration), microcomputer intelligent temperature control, PID control

4. Constant temperature accuracy: ± 0.5 ℃ (at constant temperature), uniformity: ± 1 ℃, resolution: 0.1 ℃

5. Bottling capacity: Ø 16 × 200; 100ml×20； 250ml×12； Tray size: 450 × 350mm

6. Oscillation frequency: Start at around 300r/min (± 1rpm), with a constant and non fluctuating speed displayed on the LCD screen

7. Amplitude: 20mm, spiral type

8. Heating power: 1500W; Cooling power: 226W

9. Timing range: 0-9999 minutes (hours)

10. Equipment material: The inner cavity, tray fixture, and top cover are all made of high-quality stainless steel. The bearings of the transmission system are made of domestic Ha Bearing brand, ensuring that there will be no quality problems within three years under normal use. If you need the same all stainless steel as shown in the picture, you can choose+800 yuan.

2、 Technical features:

1. Control mode: microcomputer intelligent temperature control speed, LCD display temperature, speed and time.

2. Vibration mode: Balanced oscillation, no splashing of waves, using horizontal swirling oscillation.

3. Shaker fixture: The universal spring bottle rack is particularly suitable for the cultivation and preparation of biological samples for various comparative experiments. Stainless steel universal fixtures or stainless steel fixed capacity fixtures can be selected according to experimental needs.

4. Motor type: DC brushless motor, characterized by high torque, low noise, maintenance free, reliable performance, smooth operation, environmental protection, and long service life.

5. Shaking bed material: The inner cavity, tray, fixture, top cover and related components are all made of high-quality stainless steel, with good corrosion resistance (the shell can be optionally made of stainless steel material, only+800 yuan).

6. Safety devices: compressor overcurrent protection, leakage protection, controller over temperature protection alarm, parameter memory, and power recovery function.

7. Additional features: USB communication mode, RS485 communication mode.

3、 Attention:

1. Please read the instructions carefully before use, and remember to add water to the water level line before turning on the power when closing the faucet.

2. Set the digital temperature display, turn on the power switch to raise the temperature of the water tank, cover the water tank cover, wait for the water temperature to reach the desired value, turn on the circulation power switch, and the water in the water tank will circulate evenly to the indoor temperature.

3. The water level should not be too high to prevent experimental errors caused by water overflow.

4. When you need to quickly cool down, there are two water nozzles next to the control box. Either one enters the condensate water (ice making water or tap water), and the other enters the outlet pool (using latex pipes) to assist in lowering the temperature at that time.

5. To extend the service life of the instrument, please be careful not to let the control box get damp and prevent electrical leakage.

6. The instrument is covered by a one-year warranty from the date of manufacture (any human error or improper use will incur production costs), with lifelong maintenance.

7. After use, please drain the water (water outlet), wipe it clean with a dry cloth, and place it in a ventilated and dry place.

4、 Common problems and solutions during use:

1、 Display normal, settings normal, unable to heat up.

Handling method:

(1) Connect the power supply, turn on the power switch, adjust the set temperature to be higher than the actual measured temperature, check if the temperature controller has an output indication. If there is, measure if there is voltage input to the heating tube. If there is, the heating tube is broken and can be replaced. If there is no voltage input to the heating tube, it is mostly due to relay failure. If the temperature controller does not have voltage output indication, it is recommended to replace the temperature controller.

(2) The temperature controller displays LLL or 999 (parameters may vary depending on the manufacturer). This fault is caused by a temperature sensor open circuit or short circuit. Replace the sensor.

(3) The temperature is not controlled, and the relay is broken or the sensor is damp.

2、 Heating is normal, but the oscillation speed has slowed down.

Solution: Open the side panel of the control cabinet, turn on the power, set the temperature control to 0 degrees (i.e. no heating state), turn on the oscillation switch, adjust the speed to high, find the two adjustable resistors on the speed control board, and adjust the one on the right counterclockwise to solve the problem.

3、 Heating is normal, oscillation cannot work.

Solution: Open the side panel of the control cabinet, connect the power, set the temperature control to 0 degrees (i.e. no heating state), turn on the oscillation switch, adjust the speed to high, use a multimeter AC 250 to measure whether the transformer has 220V voltage input. If not, the switch is broken. Otherwise, measure whether the transformer has 12V voltage output (using AC 50V). If not, the transformer is broken. At this time, do not replace the transformer easily. This situation is mostly caused by a short circuit fault in the rectifier part or motor of the circuit board (this phenomenon occurs, and the appearance of the transformer is burnt). After ruling out the above situation, replace it.