What aspects should be paid attention to when purchasing a small laboratory high and low temperature integrated machine?

There are many models and types of small laboratory high and low temperature all-in-one machines on the market.
When purchasing a small laboratory high and low temperature all-in-one machine, users need to pay attention to the following aspects? 1.
Price factor: Since the small laboratory high and low temperature integrated machine is a relatively high-priced commodity, it should be purchased from the manufacturer as much as possible when choosing.
The manufacturer can give a preferential price, and the user can directly enjoy it
.

2.
Parameter requirements: To place an order online is to look at the main parameters and expect to buy some cost-effective products
.

Therefore, for equipment with high use value, we can visit and check before purchasing
.

3.
Maintenance: Maintenance is very important for the long-term operation of the small laboratory high and low temperature integrated machine
.

For example, the actual cooling effect of the small laboratory high and low temperature integrated machine is very poor.
A large part of the fundamental reason is that the small laboratory high and low temperature integrated machine has not been regularly maintained
.

4.
Lubrication: The small laboratory high and low temperature integrated machine should be lubricated with lubricating fluid for a period of time, otherwise the sliding friction of the machinery and equipment will be increased, and the related machinery and equipment will be worn
.

We know that different industries have different regulations for the heating and refrigeration cycle system, the uniqueness of the application site and the composition of the refrigerant are different, and the heat transfer oil signal selected by the small laboratory high and low temperature integrated machine is also different
.

　　5.
The difference between new and used equipment: What is the difference between new and used equipment? Of course, it is very different from the old device in terms of energy consumption
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Old equipment must consume a lot of power, and the parts are not very good, so such common faults are prone to occur, which will bring inconvenience to enterprises
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And new equipment has a period of after-sales service guarantee, and old equipment does not have after-sales service
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Therefore, users try to choose new equipment as much as possible, do not buy second-hand equipment, there is no after-sales guarantee
.