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; Add a process for screening excess materials to improve the quality and reliability of your thermostats.
2. Improve the surface cleanliness and finish of the contact, and strengthen the cleaning of the contact surface in daily work, so as to remove oxides, so that the quality and life of the jump thermostat can be improved.
3. In the selection of contact materials, it is recommended to use AgNi15 contact material for the working environment with large load, and Ag contact material can be used for the environment with small load.
4. According to the analysis of the working mechanism of the reed, it is particularly important to reasonably design the structure of the reed, select the reed with appropriate stiffness, and correctly set the position of the action point of the push rod to improve the performance of the thermostat.
5. In order to avoid the phenomenon of cracking, the rounded corners of the reed can be designed smoothly to avoid the concentration of stress.
6. The fracture at the bend of the reed is caused by insufficient fatigue strength, so increasing the fatigue strength of the reed is the solution to avoid this situation.
7. The influence of the hot bimetal sheet on the temperature control of the sudden jump thermostat is obvious, so the hot bimetal sheet should be heat treated many times to enhance its fatigue resistance.
8. Two parameters need to be strictly controlled in the design of hot metal sheets, namely the radius of the external circle and the arch height, and reasonable control of these two parameters is conducive to reducing the probability of drift in hot bimetal sheets.
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More on that
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For some considerations in the RKG thermostat setup
RKC Thermostat Operation Note:
1. Clean the instrument only after the power is off;
2. To remove the stains on the monitor, please use a soft cloth or cotton paper;
3. The display is easy to be scratched, and it is forbidden to use hard objects to operate the panel buttons, otherwise the buttons will be damaged or scratched.
RLC thermostat ...
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RK Thermostat - Part of the LCD shows the status quo of floor heating thermostats
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.
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RKC Level Gauge - Preservation and storage of float level gauges in daily use
1. To avoid damage to the instrument, pay attention to the correct protection method: in order to ensure the accuracy of the instrument and avoid damage to the instrument, try not to use the protection instrument of isolator or other isolation devices. If you have to do it, you should also pay attention to the careful selection, determine the isolation solution, and wash the isolation film correctly, ...
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Specifications and models of RKC thermostats
CH102 (48×48×100mm)
CH402 (48×96×100mm)
CH902 (96×96×100mm)
1. RH400 size: 48*96, depth 60, about 250g
1. Thermocouples: K, J, R, S, B, E, N, T, W5RE/W6RE, PL‖, U, L
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What are the rich functions of RRKC thermostats – wall mounted thermostats?
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 ...
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RRKC thermostats – the commissioning steps of mechanical thermostats
1. Confirm the angle sample first. See where the angle of the sample is today.
2. Pick up the thermostat, first confirm whether the switch of the thermostat is tight, stuck, whether the white dot falls off, whether there is sound when the thermostat contacts are in contact, and if there is no sound, there should be two possibilities!
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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 ...
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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 thermostat – a rapid detection method for common air conditioner 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 ...
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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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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...
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Introduction to the functions of the RKC temperature control meter
(1) RH400 size: 48*96, depth 60, about 250g
Details:
●A variety of input types are available:
1) Thermocouples: K, J, R, S, B, E, N, T, W5RE/W6RE, PL‖, U, L
2) Temperature measurement RTD input: PT100, JPT100...
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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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RKC Level Gauge – Installation of a pontoon level gauge
When transporting and unpacking, it is necessary to avoid excessive shock and vibration;
The installation should be firm and reliable, and the pontoon should be installed vertically to prevent the pontoon from colliding with the interior wall of the pontoon;
When the pontoon is hooked, it should not swing or pull and compress sharply, so as not to damage the sensor and reduce the accuracy of the instrument;
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RKC Thermostat – How to Maintain the Instrument?
The normal operation of the instrument is inseparable from the on-site maintenance relationship, especially some important process links, once there is a leak, it will greatly affect the quality of the product, resulting in heavy losses.
First of all, it is common to install both remote and field-indicated level gauges on important tanks.
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The main technical indicators of RKC thermostat
The main technical indicators of RKC thermostat
· Input: various thermocouple (TC), RTD standard current and voltage signals (see input type table);
· basic error: 0.5% of the input full-scale ±±1 word;
· Resolution: 1°C, 0.1°C;
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RKC Level Gauge – Precautions for the installation of float level gauges
1. The specific gravity of the liquid to be measured must be greater than the specific gravity of the float
2. The measured medium should not contain ferromagnetic impurities
3. The float level gauge should be installed in an unobstructed position when the float moves up and down
4. Magnets are not allowed to be close around the float level gauge, otherwise it will affect the float.
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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 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...
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RRKC Thermostats – Considerations for Instrumentation Maintenance and Maintenance
There are many types of instrumentation and have a wide range of applications in many fields. Because of this, there are many problems with the failure of instruments in the process of use, so it is necessary to pay more attention to the repair and maintenance of instruments and meters, which can effectively improve the performance of instruments and meters, and can extend the performance of instruments and meters.
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