How to choose the right electric heating sleeve

At present, the electric heating commonly used on the market is PTHW knob temperature control type, ZNHW digital display temperature control type, ZNHW-II liquid crystal display, etc.
, are electric heating sleeves that realize constant temperature heating through electronic pressure regulation, it is an alkali-free glass fiber as an insulating material, the Cr20Ni80 alloy spring device in it, with aluminum silicate cotton through vacuum shaping of hemispherical insulation body insulation, shell one-time injection molding, the upper cover using electrostatic injection molding process, due to the use of spherical heating, can make the container heating area reach more than 60%, It has the characteristics of
fast heating, high temperature, easy operation and durability.
In the experiment, it is often necessary to use the electric heating sleeve, so how to choose the electric heating sleeve to change? Generally, the electric heating sleeve should be purchased according to the following points: 1, how much capacity of the electric heating jacket needs to be used 2, whether it needs to be displayed 3, whether it is necessary to adjust the temperature and the method of temperature control When using the electric heating sleeve, it is necessary to pay attention to: 1.
The instrument should have good grounding
.
2.
When the second use, there is white smoke and odor in the sleeve, the color changes from white to brown and then to white is a normal phenomenon, because the glass fiber contains oil and other compounds in the production process, it should be placed in a ventilated place, and the electric heating sleeve
can be used normally after a few minutes of disappearance.
3.
3000ml or more electric heating sleeve when used with squeak-squeak sound is the furnace wire structure is different and related to thyristor pressure regulation pulse signal, can be used
with confidence.
4.
When the liquid overflows into the sleeve, please quickly turn off the power supply, put the electric heating sleeve in a ventilated place, and use it after drying, so as to avoid the danger
of leakage or electrical short-circuit.
5.
When not in use for a long time, please store
the electric jacket in a dry and non-corrosive gas place.
6.
Please do not empty set for heating or dry burning
.
7.
When the ambient humidity is relatively large, there may be inductive electricity transmitted to the shell through the insulation layer, please be sure to ground the wire, and pay attention to ventilation
.