Users will inevitably ask a few more questions when choosing a hot and cold shock test box, and conduct price comparisons. Of course we all need to know that there is no good and cheap goods, and expensive is not necessarily a high-quality product. Kunshan Haida instrument experts here tell everyone that in addition to knowing the requirements of their test products, we must also understand the main performance of the cold and heat shock test box and the manufacturers After-sales service can help you choose a suitable hot and cold impact test box.

First, what is the main performance of the thermal shock test box?

1. Impact temperature: Impact temperature refers to the maximum temperature range that the test zone can actually raise or lower. Note that it is not the preheating and precooling chamber limit temperatures.

2. Test load: This parameter directly affects how many test articles can be placed.

3. Recovery time: It refers to the time taken for the test piece to switch from one temperature point to another temperature point. The common standard stipulates ≤ 5min.

4. Defrosting time: The longer the defrosting interval, the better. Now some manufacturers can do 1000cycles defrosting once, it is very ideal. The shorter the defrost interval, the worse the airtightness of the device!

5, the sensor placement position: specification requirements, the sensor must be placed inside the test area. Some manufacturers place the sensor inside the air duct. Although there is only a distance of 10cm from the test area, this energy difference is quite large. And can not truly reflect the temperature change of the test workpiece surface.

Second, the manufacturer's after-sales service how?

1. The hot and cold impact test box produced and sold by Kunshan Haida Precision Instrument Co., Ltd. is delivered to the door strictly according to the order date, and the technicians are sent to the site for free installation and debugging. The operator is free to train until the operator will operate independently.

2. The hot and cold impact test box produced and sold by our company, Kunshan Haida Instrument will be guaranteed for one year free of charge (from the date of installation and acceptance), providing spare parts and after-sales service for 48 hours. .

3. After the warranty period of the equipment has passed, if there is any failure in the hot and cold impact test box, after the announcement of our company, the technical personnel will provide on-site service and only collect the cost of the work.