RKC Thermostat – What are the common faults of thermostats?

Create Date: 2024-8-30 12:03:23|Source: RKC

1. There is no manifestation when the power is on. For this kind of problem, first confirm whether the power supply is there and whether the power supply matches the power supply required by the thermostat, and then check whether the wiring is strong. The problem is still there, then it is the problem of the thermostat itself.

2. There is a manifestation, and the manipulation makes mistakes. This type of problem starts with the control wiring, and then takes into account the sensors and actuators.

3. There is a deviation between the operating temperature of the thermostat and the actual temperature. This kind of problem should be a problem of PID parameter tuning, and you need to set the PID parameters from scratch.

4. After heating for a period of time, the temperature does not change, and it is always the ambient temperature. This kind of problem is actually a thermocouple problem, which can easily cause the thermostat to show the ambient temperature.

5. During the heating process, the temperature is getting lower and lower. It is very likely that the thermocouple is reversed.

6. There is a big difference between the display of the thermostat and the actual value. This kind of problem can be seen whether the wiring is loose, the sensor is damaged, the type of sensor used does not match the type of sensor selected by the meter, etc.

RKC Thermostat – What are the common faults of thermostats?

More on that

	Causes and treatment methods of inverter overvoltage 　1. According to the theory of cutting off the overvoltage, when the transformer is cut off, the current in the transformer inductance cannot be abruptly changed, and the stored magnetic field energy forms a vibration between the excitation inductance of the transformer and the ground capacitor, and the overvoltage occurs. 2. Transformer ...
	RKC converter - an introduction to the classification of converters 　　Analog-to-digital converters The analog-to-digital converter comprises a first transmission circuit, which receives an input voltage and an output clock signal, which is phase-shifted, depending on the input voltage, and a second transmission circuit receives a reference voltage and an input clock signal, and outputs a reference clock signal, which ...
	RKC thermostat - introduction of the three output modes of the thermostat The first output method is relay output, which is output for temperature control through the switching signal of the relay on/off, which is used to directly control the load less than 5A, or directly control the contactor and the intermediate relay, and control the high-power load externally through the contactor. The second ...
	RK Level Gauge - Introduction to the characteristics of float level gauge It is suitable for measuring the level and interface of the liquid medium in the container. In addition to on-site instructions, it can also be equipped with remote transmitters, alarm switches, and detection functions. The indication is novel, the reading is intuitive, eye-catching, and the direction of the observation indicator can be changed according to the user's needs. Large measuring range ...
	RKC Level Gauge – The structure of a float level gauge (1) For the indicator, also known as the display panel, the indicator plays the role of local display, convenient for long-distance observation of the actual situation of the liquid level, the indicator is generally bundled with the pontoon, easy to install. (2) It is a magnetic float, which is located in the pontoon and is in direct contact with the liquid to be measured, ...
	Classification of thermostats and their brief introduction Pop-up thermostat Bimetal Disc Jump Thermostat is a kind of bimetal sheet after constant temperature as a heat-sensitive reaction component, when the temperature of the main part of the product rises, the heat generated is transferred to the bimetal disc, and when the operating temperature is set, it acts quickly, and acts through the mechanism to act as a contact ...
	RHK thermostat - 5 common problems and solutions for stand-alone thermostats Fault 1: The thermostat does not turn on (does not light up) Analyze the causes 1. Wrong wiring 2. The voltage of the input terminal is not enough or the input terminal is damaged by empty opening and leakage 3. Whether the cable between the panel and the power board is broken or plugged incorrectly 4. Load short circuit or open circuit, probe ...
	RKC converter – the design essentials of the power converter In the design of power converter, firstly, the circuit topology is determined according to the load requirements, and the composition and backup mode of the power converter are determined, and the main parameters of the power converter are input voltage range, output voltage accuracy, load stability, voltage stability, output ripple, efficiency and dynamic.
	Introduction to the types of alarms for RKC thermostats * Alarm table {ALM1} (standard built-in) A: Upper limit deviation alarm G: Standby upper and lower limit deviation alarm attached B: Lower limit deviation alarm H: Upper limit input value alarm C: Upper and lower limit deviation alarm J: Lower limit input value alarm D: Alarm in the range K: Attached standby ...
	What should I pay attention to when operating the RKC thermostat? The instrument can be cleaned only after the power is off; To remove stains from the monitor, use a soft cloth or cotton paper; The display is easy to be scratched, and it is forbidden to use hard objects to operate the panel buttons, otherwise the keys will be damaged or scratched. ...
	RLC Thermostat – How to use a smart temperature controller 1. Set temperature: press and hold the SET key, at this time the tube character begins to flash, proving that the instrument has entered the set state, increase the up button, decrease the down button, and press and hold the up and down buttons to quickly change, when the desired temperature is reached, then press the SET button The instrument is set. 2. Return control: press SET ...
	RK thermostat - the problem that should be paid attention to in the installation of floor heating thermostat 1. Wall installation, the height is about 1.2 meters, generally on the same horizontal line as the electric lighting switch of the home. 2. Installed on a wall where the surrounding air flows freely, and is not affected by other heat sources (e.g. sunlight), air flow from doors and windows, or external wall temperature, etc. 3. Advance ...
	Wiring method of the RKG thermostat Take CD901 as an example, L(1) pin to 220 volt live wire, N(2) pin 220 volt neutral wire, 3,4 pins for the first output, 5,6 pins for the second output, 7, 8, 9 pins are alarm output, Finally, the three pins are connected to thermocouples or PT100 ...
	RLC thermostat - a detailed explanation of dry-type transformer thermostats The working principle of dry-type transformer thermostats The dry-type transformer temperature controller is a new generation of controller designed for the safe operation of dry-type transformers. The controller adopts single-chip microcomputer technology, and uses three platinum thermal resistors embedded in the three-phase winding of the dry-type transformer to detect and display the transformer.
	RTC thermostat - how to set the parameters of the thermostat 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 ...
	RLC thermostat - a classification introduction of floor heating thermostats Floor heating thermostats can be divided into digital thermostats and analog thermostats according to different input and output forms. Digital thermostats generally have liquid crystal display or digital tube display panels, and set and control the temperature through buttons, while analog thermostats generally use knobs or slider band wave wheels to set ...
	Common faults and solutions of RKC temperature controllers 1. The power indication is normal, but the temperature controller has no screen display. Most of this fault is caused by the heating of the voltage regulator element (7805 or 7812) on the thermostat during long-term use, which leads to the breakpoint of the solder joint, and sometimes it is caused by the phenomenon of virtual soldering at the factory, and the main re-soldering can be done. 2. Temperature controller ...
	How to set the parameters of RKC thermostat CD901? 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 ...
	RRKC Thermostat – The solution to the failure of the jump thermostat switch 1. The cleanliness and finish of the contact surface have a great impact on the working state of the contact. When the appearance of the contact is rough or there is residue 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 the residues; Add the process of residue selection, ...
	RKC thermostat - what are the anti-interference measures of the instrument? 1. Electromagnetic induction (refers to the coupling of magnetism). There is a strong alternating magnetic field in the surrounding space of high-power transformers, AC motors, high-current power grids, etc., and the closed loop formed by the lines of the control system (detection, transmission, conversion, regulation, calculation, execution, auxiliary, display, etc.) is located in the ...