ZNHW type electric heating sleeve operation precautions

First, ZNHW digital display constant temperature electric heating sleeve introduction: ZNHW type electric heating sleeve is made of alkali-free glass fiber as an insulating material, the Cr20Ni80 alloy spring device in it, with aluminum silicate cotton through vacuum stereotyped 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 of more than
60%.

Temperature control using computer chip as the main control unit, the use of multiple digital filter circuits, fuzzy PID control algorithm, with high measurement accuracy, small punch temperature, single key light touch operation, dual screen display, internal and external thermocouple temperature measurement, thyristor control output, 160-240V wide voltage power supply, and has a couple-breaking protection function, with fast heating, high temperature, easy operation, durable characteristics, is to do accurate temperature control heating test instruments
.

Second, ZNHW digital display constant temperature electric heating sleeve use method: 1.
Insert ~ 220V power supply, open the power switch, display window display "K", set window display "400" word, for the appliance with K type thermocouple, the maximum control temperature is 400 ° C, 3 seconds later, the display window displays the room temperature, and the setting window displays the last set temperature value
.

2.
Single-key operation, press the setting to add "▲" or set minus "▼" key does not put, will quickly set the required heating temperature such as: 100 °C, green light light indicates heating, green light off means stop, microcomputer will determine the amount of heating according to the temperature difference between the set temperature and the current temperature, to ensure that no temperature rush once the temperature is in place, and maintain the heat supply and heat dissipation balance under the temperature difference ±of 1 ° C between the set value and the display value, so that the heating process can be easily completed
.

3.
There is a rubber plug at the bottom left of the electric heating sleeve, which is used to protect the external thermocouple socket from corrosion and rust and conduction of the internal wire, and when unplugged, the inner probe is disconnected and the machine stops working
.

If you use an external thermocouple, you should unplug the plug for preservation, insert the external thermocouple plug into the socket and lock the nut, and then put the stainless steel probe into the solution for temperature control heating
.

4.
The electrical appliance is equipped with a couple-breaking protection function, when the thermocouple connection is not good, the display window 100 displays "1" or "hhhh", the green light is off, the electrical appliance stops heating, and needs to be checked before use
.

Third, ZNHW type electric heating sleeve operation precautions: 1.
The instrument should have good grounding
.

2.
When used for the first time, there is white smoke and odor in the sleeve, and the color changes from white to brown and then to white is a normal phenomenon, because glass fiber contains oil and other compounds in the production process, which should be placed in a ventilated place, and 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
.