Pop-up thermostat
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 the contact is disconnected or closed through the mechanism; When the temperature drops to the reset temperature setting, the bimetal sheet quickly returns to its original state, so that the contacts are closed or disconnected, and the purpose of turning the circuit on or off is achieved, so as to control the circuit.
The models of various abrupt thermostats are collectively referred to as KSD, common such as KSD301, KSD302, etc., the thermostat is a new type of bimetal thermostat, mainly used as a variety of electric heating products with overheat protection, usually used in series with thermal fuses, and the sudden thermostat is used as a primary protection. The thermal fuse is used as a secondary protection to effectively prevent the burning of the electric heating element and the resulting fire accident when the electric heating element is overheated due to the loss or failure of the sudden jump thermostat.
Expansion thermostat
It is a physical phenomenon (volume change) in which the material (usually liquid) in the temperature sensing part of the thermostat expands or contracts when the temperature of the controlled object changes, and the diaphragm box connected with the temperature sensing part expands or contracts. With the principle of lever, the switch is driven to switch on and off to achieve the purpose of constant temperature, and the liquid expansion thermostat has the performance characteristics of accurate temperature control, stable and reliable, small temperature difference between start and stop, large range of temperature control and adjustment, and large overload current. Liquid expansion thermostats are mainly used in temperature control occasions such as home appliance industry, electric heating equipment, and refrigeration industry.
Pressurized thermostat
The thermostat transforms the change of the controlled temperature into the change of space pressure or volume through the temperature package and capillary tube of the closed temperature-sensing working fluid, and automatically closes the contact through the elastic element and the fast instantaneous mechanism when the temperature set value is reached, so as to achieve the purpose of automatic temperature control. It consists of three parts: a temperature sensing section, a temperature setting body, a micro switch for opening and closing, and an automatic damper. Pressurized thermostats are suitable for refrigeration appliances (e.g. refrigerators, freezers, etc.) and heaters.
Electronic thermostat
The electronic temperature controller (resistance type) is measured by the method of resistance temperature sensing, generally using platinum wire, copper wire, tungsten wire and thermistor as temperature measurement resistors, these resistors have their own advantages and accuracy. Generally, most household air conditioners use thermistor type. Electronic temperature controllers are used in more and more fields due to their stability and small size.
Digital thermostat
The digital electronic temperature controller is an accurate temperature sensing controller that can digitally quantify the temperature. The thermostat generally uses NTC thermal sensor or thermocouple as the temperature detection element, and its principle is: the NTC thermal sensor or thermocouple is designed into the corresponding circuit, and the NTC thermal sensor or thermocouple changes with the temperature change, and the corresponding voltage and current change will be generated, and then the changed voltage and current will be detected, quantified and displayed through the microcontroller, and the corresponding control will be done. The digital temperature controller has the characteristics of high accuracy, good sensitivity, intuitiveness, and convenient operation.
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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 converters – what are the functions of converters?
1. Power conversion: convert the voltage (rated 100V) and current (rated 5A or 1A) of the transformer into voltage (several volts) to meet the requirements of weak current components.
2. Isolation: current, secondary side security, and work grounding are used to ensure the safety of people and equipment, while weak current ...
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RLC thermostats – the classification of thermostats and their detailed introduction
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 ...
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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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How to set the parameters of RKC thermostat RH900
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 ...
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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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Key features of the RLC thermostat:
Thermocouples, RTDs, analog and other signals are freely inputted, and the range can be set freely;
The software zeros the full degree, the cold end measures the temperature separately, the amplifier is self-stabilizing, and the display accuracy is better than 0.5%FS;
Fuzzy theory combined with traditional PD method, fast and stable control, advanced tuning ...
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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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RKC Level Gauge – Some installation requirements for pontoon level gauges
1. The installation of the level gauge must be vertical to ensure that the inner pontoon can move up and down freely in the pipe body.
2. Install a shut-off valve between the container and the liquid level gauge to clean and overhaul the liquid level timing to cut off the material.
3. No magnets are allowed to approach around the main body of the pontoon level gauge, otherwise ...
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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.
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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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RLC thermostat - common faults and solutions of intelligent temperature controllers
1. Heating for a period of time, the temperature does not change. Displays the ambient temperature of the site at all times (e.g. room temperature 25°C)
In case of such failures, first check whether the SV value setting value is set, whether the instrument OUT indicator is lit, and whether the No. 3 and 4 terminals of the "multimeter" measuring instrument have 12VDC output.
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RRC thermostat - the principle of sudden jump thermostat, how to judge the good or bad?
1. What is the principle of the sudden jump thermostat?
The sudden jump thermostat is a kind of thermostat, which is a series of automatic control elements that are physically deformed inside the switch according to the temperature change of the working environment, resulting in some special effects and on-off action. Sudden jump ...
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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 working principle and main features of the pop-up thermostat
How it works
The sudden jump thermostat is a kind of bimetal disc after constant temperature as a heat-sensitive reaction component, when the temperature of the main part of the product increases or decreases, the heat generated is transferred to the bimetal disc, and when the operating temperature is set, it acts quickly, and the contact is broken through the action of the mechanism.
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RRKC thermostat – the main function of the thermostat
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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RLC thermostat - classification and detailed explanation of floor heating thermostat
1. Mechanical
The sensitive gas diaphragm box or thermal bimetal sheet is used as the temperature sensing element to form the temperature control switch of the mechanical contact. This kind of thermostat is more in the European and American markets, and only a few domestic manufacturers promote such products. Mechanical floor heating thermostats usually have contact currents of no more than 8A, which are suitable for ...
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RKG thermostat - an introduction to the characteristics of digital displays
1) It is a display of the common cathode. It uses the principle of the positive electrode as the segmented input, with the ground wire as the common output, and the segmented input is valid as a high-level input.
2) It is a display with a common anode. It uses an anode as an aggregate input, and in contrast to the common cathode, the segment is effective at a low level output ...
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RKC thermostat operation attention and its main features
RKC thermostat operation attention
· Clean the instrument only after the power is off;
· Please use a soft cloth or cotton paper to remove stains on the monitor;
· The display is easy to be scratched, it is forbidden to use hard object to operate the panel buttons, otherwise the keys will be damaged or scratched.
Key features:
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RKC thermostat - introduction of three wiring methods of thermal resistance
1. The three wiring methods of Pt100 RTD are different in principle:
The two-wire system and the three-wire system are measured by the bridge method, and the relationship between the temperature value and the analog output value is given after ***. There is no bridge on the four wires, it is completely just sent with a constant current source, measured by a voltmeter, and the test is given after *** ...
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