The core control algorithm of the thermostat is PID control, P (Proportional) + I (Integral) integral + D (Differential) differential control. In addition to the traditional PID control algorithm, RKC also has ON-OFF control, self-tuning parameter control, adaptive parameter control and other algorithms, with short temperature control stability time and fast corresponding speed.
The RKC temperature controller is a microcomputer bear that controls industrial heating equipment. The temperature range of industrial equipment controlled by industrial temperature controllers is generally -199°C--3000°C. The heating mechanism is generally carried out in the form of a relay or a solid relay, the thermostat reads the actual temperature according to the signal sent back by the thermoelectric couple, and then compares the actual temperature value with the set temperature value to produce a temperature deviation, and the direction of adjustment is carried out in the direction of reducing the temperature deviation, and then the RKC thermostat outputs an analog or switching quantity to drive the actuator such as the relay or thyristor to achieve heating or cooling control.
Industrial thermostats generally use thermocouple sensors to measure temperature values, thermocouples have J, K, R, S and other divisions, each division number thermocouple has its unique temperature accuracy in different temperature ranges, the commonly used K index thermocouple accuracy range is 0-400 °C, is a common temperature sensor. Another kind of temperature sensor is thermal resistance, the common one is PT100, also known as platinum resistance, the accuracy is relatively high, generally used in the range of -199-649 °C, the price is slightly more expensive than thermocouples.
When the RKC thermostat comes out, it is a single-loop regulator, that is, there is only a heating function, called the basic table, which is generally sent to the agent, and the agent expands the multi-channel adjustment and alarm output control function, commonly known as changing the meter, so as to ensure that the multi-function expansion can be achieved with little hardware cost, which is a function that other thermostats do not have, in addition, the input range and alarm range of the RKC thermostat can be set by software and parameters, which is more convenient, and the overcurrent protection function can be realized by the applied current transformer, With 485 communication port, it can communicate with the upper computer.
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RRKC thermostat – the correct way to set up the thermostat
Press the SET button to set or view the temperature set point, press the SET key digital tube characters to start flashing, indicating that the instrument has entered the setting state, press the △ key to increase the set value, press the ▽ key to decrease the set value, press and hold the △ key or ▽ key The data will change rapidly, press the SET key again The instrument returns to normal working condition ...
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RHK thermostats – an introduction to the classification of displays
(1) Categorize by display color
1. Monochrome display
There are two types of displays: multi-grayscale monochrome display and VGA multi-frequency monochrome display. These displays are small, lightweight, clear and inexpensive, making them suitable for highly mobile workplaces.
2. Color ...
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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 ...
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RKC thermostat REX-C400 model settings and parameter instructions
Japan RIKA RKC REX-C400 temperature controller product introduction
REX-C400 Digital Thermostat RKC PID Temperature Controller Thermostat (SSR Output) + Type K Thermocouple + *Large 40A SSR Relay
1. Dual display set temperature and process temperature
2. General Digital Programmable Temperature ...
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What are the precautions for the installation of the RKG thermostat?
1) For RTD input, 3 wires with low resistance and no difference should be used.
2) The input signal line should be far away from the power line of the instrument. Power supply and load lines to prevent noise disturbances.
3) The power cord of the instrument is generally disturbed by the power supply.
4) Instrument complement ...
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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, ...
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RKC Thermostat Common faults of thermostats
The power indicator is normal, but the temperature control meter has no on-screen display. This kind of fault is mostly caused by the heating of the voltage regulator element (7805 or 7812) of the temperature controller during long-term use, resulting in a break point in the solder joint, and sometimes a virtual soldering occurs at the factory, resulting in re-soldering.
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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 ...
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Wiring method and control method of RKC thermostat
1. Wiring method
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,
The last three legs are connected to ...
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RKC Level Gauges - Advantages and Disadvantages of Several Common Level Gauges Introduction
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:...
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What should I pay attention to when setting up my RKC thermostat?
Wiring Warning:
If the instrument fails or an error occurs, which can cause a system failure, an external protection circuit is installed to prevent such accidents:
In order to prevent damage or failure of the instrument, choose an appropriate fuse to protect the power cord and input and output lines from strong power shocks.
Power supply ...
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RKC Level Gauges – How to Install Float Level Gauges Correctly
In general, the following points should be followed when installing a float level timer:
1. In order to prevent the float from sliding or hitting the sealed tube at high speed during transportation, causing the measuring belt to fall out, the instrument is fixed at the bottom of the sealed tube with a clamp before leaving the factory, and the magnet is on the top of the sealed tube.
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What should be paid attention to when installing RRKC thermostats - pop-up thermostats
1. The use environment of the sudden jump thermostat should avoid stains and moisture, otherwise it will affect the electrical performance of the product, and the thermostat must be used in a working environment with a relative humidity of ≤ 90% and no contact with corrosive and flammable mediums. For use in wet environments or submerged liquids, the thermostat ...
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Initialization parameter setting of the rkc thermostat
1. Press the ISET) button for 2 seconds to enter the parameter setting mode, press ISET until "LCK" is displayed, press the [] key to move the cursor to the thousands, and press the [] button to change the number of thousands from "0" to "1" to display "1000" to unlock.
2. Press the ISET button for 3 seconds to return to SV/PV display mode
3. Press [SET]+ ...
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The main role and service life of the thermostat - RLC
In most cases, in Europe, the thermostat is a necessary accessory for the wall-hung boiler, and the two are delivered to the user at the same time, and most of the thermostats equipped are intelligent thermostats. In China, nearly 95% of the wall-hung boilers that have been installed in operation and are being installed and debugged and ready to be put into use are not equipped in advance.
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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, ...
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RHK product model introduction
RHK Recommended Product Models:
Single-phase power conditioner
THV-10（20A, 30A, 45A, 60A, 80A, 100A）
Ethernet communication converter
COM-ME series
USB communication converter
COM-KG
Digital Display Controller (Process/Temperature)
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RK thermostat - common problems and solutions of electric floor heating stand-alone thermostat
Fault 1: The thermostat does not turn on (the screen does not display)
Analyze the causes
1. Wrong wiring;
2. The voltage of the input terminal is not enough or the input terminal is damaged by the empty leakage guarantee;
3. Whether the cable between the panel and the power board is broken or plugged incorrectly;
4. Load short circuit or broken ...
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What are the characteristics of RLC thermostats – mechanical thermostats?
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;
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RLC Thermostat - Overview and characteristics of mechanical thermostats
Mechanical thermostats are suitable for indoor temperature control in industrial, commercial and residential buildings. The mechanical thermostat uses an inflatable diaphragm box to sense the temperature and compare it with the user's set temperature to automatically control the air conditioning equipment to achieve the purpose of indoor constant temperature. For commercial, industrial and civil construction, available ...
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