RLC thermostat - common faults and treatment methods of dry-type transformer thermostats

1. Bellows or diaphragm air conditioner thermostat Fault Symptom: Poor contact or burning, resulting in the circuit cannot be connected; The frequent action of the contact arc and sticking causes the circuit to be unbreakable; The leakage of the thermostat in the temperature sensing chamber causes the contact to fail to operate and lose control ...

1. Turn on the power of the smart thermostat, and the current temperature is displayed on the display. Because the sensor is not in contact with other devices, but is exposed directly to the air, this is the current temperature: 31 degrees Celsius, which is not too hot. 2. At the bottom right of the display is the "Startup Temperature" setting.

　High-temperature melt pressure sensors, transmitters, and high-temperature melt pressure gauges are special equipment in extrusion processing. On the production line, melt pressure sensors play an important role in improving melt quality, increasing production safety and protecting production equipment. Use...

1. Used to control fan coil unit, electric valve, damper and other equipment; 2. The switch adopts toggle type, which feels comfortable and has a long life; 3. Set the temperature by twisting (the temperature range can be limited); 4. The thermostat can be installed directly on the wall or on the standard junction box; ...

The wall-mounted thermostat is an ultra-thin intelligent thermostat that integrates measurement, display, control, alarm, recording and other functions, which can realize accurate measurement and control of temperature, pressure, flow and other parameters. Available in three sizes of 5 inches, 7 inches and 9 inches, a total of 12 models are available ...

A digital display controller is a simple controller with indication, control, remote transmission and alarm functions. As a secondary instrument commonly used in sensors, it is very important to operate and use it correctly. Applications such as level control, temperature control, pressure control and parameter value display of measured variables. ...

The following points should be paid attention to in the selection of intelligent thermostats: (1) Dimensions (panel size, length) (2) Enter the sensor graduation number (according to the matching sensor), display accuracy, and display resolution (3) What is the main output (selected according to the controller) ...

First, the use of electronic temperature controller The electronic temperature controller (resistive type) is measured by the method of resistance temperature sensing, and generally uses platinum wire, copper wire, tungsten wire and semiconductor (thermistor, etc.) as the temperature measurement resistor, and these resistors have their own advantages and points. Home Air Conditioner ...

Faulting and troubleshooting of vapor pressure temperature controllers (1) Common faults and common faults of the vapor pressure type temperature controller include contact burning or adhesion, failure of the mechanical transmission mechanism and leakage of temperature sensor in the temperature sensing tube. Its detection method is: put the thermostat knob in a parking position, and use ...

1. The indicated value is large (or out of range). According to the investigation of our staff, this kind of problem often appears in the atmospheric pressure workshop. When we find that the counterweight of the float in the float level gauge is at a low point, the liquid level must be very high at this time, and the glass plate is inconsistent with the indication of the instrument.

1. In which room should the thermostat be installed? It is very important to choose a reasonable location to install the thermostat, which will directly affect the work of the wall-hung furnace in your home, the main living room (living room) should be your best choice, you can also install the thermostat in the bedroom according to your personal needs.

1) The LCD interface is too large or the display symbols are not proportional or standard. 2) The terminal blocks or circuits (components) that control the output cannot withstand large currents. 3) The cable of the external sensor (ground probe) is a thin and flexible wire, which cannot be inserted into the embedded pipe, and it is also a hidden danger for future maintenance. ...

1. Classification of pontoon level gauges The pontoon level gauge is also divided into two types: inner pontoon and outer pontoon, the so-called internal and external division refers to the place where the pontoon is installed, in the container of the liquid to be measured is the inner pontoon, and the outer pontoon is called the outer pontoon outside the liquid container to be measured.

Fault 1: The device does not display after powering on Solution(s): First of all, check whether the terminals of the device have been connected to the neutral live wire, and make sure that the neutral live power supply can work normally. Then start to check whether the cable between the LCD motherboard and the device drive power supply is ...

1. Sudden jump thermostat The type of various sudden thermostats is collectively called KSD, such as KSD301, KSD302, etc., the thermostat is a new type of bimetal thermostat, mainly as a variety of electric heating products with overheat protection, generally connected with the thermal fuse in series, sudden temperature ...

1. Lower limit deviation alarm setting: press the SET key to select and display "SLP", the green display screen displays the value of the parameter, and select the shift, increment, and decrement keys to set or modify the parameter. This parameter indicates the difference between the alarm point and the master setpoint. 2. The upper limit deviation alarm is set ...

The temperature controller is an electrical switchgear that controls the temperature of an air-conditioned room. The temperature range in the air-conditioned room controlled by the temperature controller is generally 18°C--28°C. The temperature controller commonly used in window air conditioners uses the principle of pressure to push the contacts on and off. Its structure consists of bellows ...

1. The cleanliness and finish of the contact surface have a great impact on the working condition of the contact. When the surface of the contact is rough or there is excess material on the contact, it is easy to cause arcing and reduce the life of the contact. Therefore, the parts cleaning process should be improved to eliminate excess materials; Increasing the process of screening excess materials, ...

1. Heating for a period of time, the temperature does not change. The ambient temperature of the site (e.g. room temperature 25°C) is displayed at all times. In case of such failures, first check whether the SV value setting value is set, whether the 0UT indicator light of the meter is lit, and whether the No. 3 and No. 4 terminals of the meter with the "multimeter" are 12VD ...

1. Float level gauge is an instrument that relies on the principle of buoyancy to measure the liquid level. Usually by means of a float in conjunction with a scale, the observer can visually read the height of the liquid level. Advantages: fast and intuitive reading; Low price; Easy to install. Shortcoming:...