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 pins are connected to temperature sensors such as thermocouples or PT100s
2. Control methods
The control method is divided into two modes of heating and cooling, and the cooling is divided into air cooling and water cooling, and the single-loop heating mode is mostly used on general industrial equipment, and the heating method has heating wire and steam heating, the heating wire heating is relatively simple, which is realized by the heating mode of resistance, and the steam heating mode is to realize the control of steam volume by adjusting the valve of the RKC thermostat.
|
More on that
|
RKC Level Gauge – The correct maintenance method for float level gauges
(1) After 6 months to 1 year of operation, the sensor should be visually inspected and routinely calibrated.
(2) Regularly check whether the sensor is bent and deformed by external force to avoid ball jamming.
(3) Regularly check whether the magnetic induction switch element of the sensor is aging and failing, ...
|
|
What are the solutions to the failure of the RRKC thermostat - the sudden thermostat?
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, ...
|
|
RKC Thermostat How to properly select and use a pressure sensor
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...
|
|
RK Thermostat - 5 Common Faults of Thermostat and Solutions
1. After heating for a period of time, it is found that the temperature has not changed, and the temperature has been displayed at the time of the ambient temperature.
In this case, you need to check that the SV value setting value is set, whether the OUT value indicator of the meter is not lit, and whether the No. 3 and 4 segments of the universal meter are 12VD ...
|
|
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 ...
|
|
RK thermostat - the selection and installation method and precautions of the central air conditioning thermostat
1. Thermostat output control power: The thermostat output control power is the first issue to consider when choosing a thermostat, which is related to the safety and stability of use, and may cause serious consequences if not selected properly, such as: fire. Thermostat products are marked with output control voltage and current, and the ...
|
|
RRKC thermostat - five common faults and solutions of smart thermostats
After heating for a while, 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 a fault, first check whether the SV value setting value is set, whether the OUT indicator of the meter is lit, and whether the No. 3 and No. 4 terminals of the meter are 12VDC output with the "multimeter". ...
|
|
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.
|
|
Common faults and solutions of intelligent temperature controllers - RTC
Master the common problems of several common intelligent temperature controllers, and solve them by yourself when you encounter problems, and you don't need to spend time and effort to find someone to repair, the common problems are as follows:
1. Heating for a period of time, the temperature does not change. Ambient temperature (e.g., room temperature 25°C) is displayed at all times
...
|
|
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 ...
|
|
RKC thermostat - common faults and solutions of temperature control instruments
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 ...
|
|
RKC Level Gauge - the principle of the selection of float level gauges
The float level gauge is widely used, mainly used in petroleum processing, food processing, chemical industry, water treatment, manufacturing, electric power, papermaking, metallurgy, ships and boilers and other industrial automation processes to measure and control the level.
1. Pay attention to the specific working conditions. As introduced ...
|
|
RRKC thermostats – how are temperature controllers wired and commissioned?
1. Take out the room temperature controller, and then connect the power supply terminal of the temperature controller to the power supply according to the terminal diagram of the temperature control chart
2. Then take out the temperature sensor that comes with the temperature controller and detect it
3. According to the temperature controller terminal, the temperature sensor is connected to the controller's transmission.
|
|
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 ...
|
|
Features and technical specifications of RKG thermostats
peculiarity
1. Thermocouple, RTD, analog and other signals are freely input, and the range can be set freely.
2. The software adjusts 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.
3. Fuzzy theory combined with traditional PID method, fast control ...
|
|
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 ...
|
|
Common faults and analysis of thermostats
Common faults of thermostats
1. There is no display when the power is on. This type of problem first determines whether the power supply is available and whether the power supply matches the power supply required by the thermostat, and then checks whether the wiring is secure. The problem is still there, then it is the problem of the thermostat itself.
2. There is a display, and the control is wrong. This...
|
|
RKC Thermostat The structure, action principle and use of some commonly used relays
A relay is an electrical appliance that works automatically. When the amount of electricity such as voltage, current, and frequency or non-electricity such as temperature, pressure, and rotational speed is input to the relay, and when the specified value is reached, the contacts of the relay connect or cut off the circuit that controls or protects it. Relays are widely used in motor control and power ...
|
|
RRKC thermostat - how to set the parameters of the temperature control meter
1. Sensor type (this is based on the actual sensor used)
2. Upper and lower limit range (usually marked on the sensor)
3. Output range setting (current or voltage signal output)
4. Alarm value setting
5. Communication parameter setting (if no point 3 is set, ...)
|
|
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 ...
|
|