Use a low temperature tank - low temperature thermostatic tank to add liquid medium in the front tank, the liquid level of the medium should be lower than the working table 30mm , otherwise the heater will be damaged when the power is on;
2. The selection of liquid medium in the cryostat should meet the following principles:
When the working temperature is between 5 and 85 Â°C , the liquid medium is generally selected from water;
When the working temperature is 85 ~ 95 Â°C , the liquid medium can be selected with 15% glycerin aqueous solution;
When the working temperature is higher than 95 Â°C , the liquid medium generally uses oil, and the open cup flash point value of the selected oil should be higher than the working temperature of 50 Â°C or more;
Note: The working temperature here refers to the temperature to be reached by the liquid medium in the tank;
3 , power supply: 220V50Hz , the power supply should be greater than the total power of the instrument, the power supply must have a good " grounding " device;
4 , the instrument should be placed in a dry and ventilated place, no obstacles within 300mm around the instrument ;
5. When the working temperature of the constant temperature bath is high, care should be taken not to open the upper cover, and do not enter the tank to prevent burns;
6. After use, all switches are turned off and the power is turned off.
The instrument should be cleaned regularly to keep the work surface and operation panel clean;
Always pay attention to observe the level of the liquid level in the tank. When the liquid level is too low, the liquid medium should be added in time;
Taking into account safety factors, we require that the thermostat above 100 Â°C be made into an internal circulation. If the external cycle is changed according to the customer's requirements, the customer should pay special attention to the firmness of the connection of the pipe to prevent it from falling off to avoid burns. Â
We supply good variety yellow & red onions, fresh keeping. Advanced management plus careful cultivation, surely we have delicious and safe onions for every client. All our growing field registered at CIQ (China Entry-Exit Inspection And Quarantine Bureau) , we control farm chemicals from seeds to finished products. In the past over 20 years, no quality problem ever occurred. We can process and export 500tons of Fresh Onions per day with our ten onion sizing lines. Maximum exported quantity in June was more than ten thousand tons.
Fresh Onions,Fresh Red Onions,Fresh Cheap Onion,Fresh Yellow Onion
Yirun Agricultural Cooperative , https://www.yiruncn.com