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. At the same time, the melt pressure sensor is a very sensitive component that can only be fully functionalized with proper installation and maintenance.
Since the 80s of the 19th century, the high-temperature melt pressure sensor, as an expensive high-end measuring instrument, has begun to be recognized by everyone in China. At that time, the products of North America and Europe were already very mature, and several representative companies began to become familiar with China ynisco)； in the United States; GEFRAN)； Italian; Japan Rika Corporation (RKC), Japan Nagano Instrument (NKS. )。
First, choose common sense:
1. Brand misunderstanding: Many times, everyone thinks that domestic products are not easy to use or even cannot be used;
2. Misunderstanding of accuracy: When choosing a product, everyone always thinks that accuracy is important; In fact, from a certain point of view, stability is more important than product accuracy, and precision selection should be based on high stability.
3. The pursuit of cheapness: good quality and low price, this is what everyone wants to see; But in fact, a high-quality product determines that its price will be relatively higher.
4. Choose the appropriate range, accuracy, installation and output.
Second, the application of common sense:
1. Check the size of the mounting hole and keep the mounting hole clean.
2. Install it correctly and choose the right location.
3. Clean carefully and keep dry.
4. Avoid high and low temperature interference, high and low frequency interference and electrostatic interference.
5. Prevent pressure overload.
|
More on that
|
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". ...
|
|
RKC thermostat How to quickly understand the wiring diagram of the thermostat
There are many models of temperature controllers, and the output methods are slightly different, but the wiring principle is the same.
The working principle of the thermostat: the main circuit of the power supply is directly connected to the heating device through the main contact of the AC contactor.
|
|
RK thermostat - the performance characteristics of digital display thermostat are introduced
1. The special integrated instrument chip has more reliable anti-interference and stability.
2. Signal input, ordinary heat signal can be connected through menu settings.
3. You can modify the display range, transmission output range, alarm value and online report J mode.
4. Soft ...
|
|
RLC Level Gauge - Classification and construction of pontoon level gauges
1. Classification of pontoon level gauges
The pontoon level gauge is also divided into two types: inner pontoon and outer pontoon, the so-called internal and external division refers to the place where the pontoon is installed, in the container of the liquid to be measured is the inner pontoon, and the outer pontoon is called the outer pontoon outside the liquid container 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 ...
|
|
RKC Level Gauge – the correct way to use the float level gauge
(1) Before use, first check whether the level gauge is within the verification cycle, otherwise, it should be calibrated, and replaced in time if it is unqualified.
(2) The sensor should be installed horizontally, and the length of the lower entry should meet the technical requirements.
(3) The connection between the sensor and the explosion-proof junction box should be tightened and tightened.
|
|
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...
|
|
RRC thermostat - how to adjust the smart thermostat
1. Set temperature: Press the SET button to set or view the temperature set point. Press the SET button 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, long press the △ key or ▽ key The data will change rapidly, press the SET key again ...
|
|
Introduction to the types of alarms for RRKC 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 ...
|
|
RKG thermostat – how the temperature controller sets the parameters
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 ...
|
|
RK thermostat - the use and adjustment of temperature control instruments
1. Set temperature: Press the SET button to set or check the temperature set point. Press the SET button at the beginning of the digital tube character flashing, indicating that the appearance has entered the setting state, press the △ key to add the set value, press the v key to decrease the setting value, press and hold the △ key or √ key The data will change rapidly, press the SET key again ...
|
|
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)
|
|
RHK thermostat - common faults and maintenance methods of thermostats
1. Thermostat contact contact failure
Poor contact of the thermostat contacts will cause the compressor to not operate properly. If the contacts are sticky, the compressor will fail without downtime. For this, you can use a small screwdriver to open the metal shell of the thermostat, and then use a fine abrasive cloth to polish the surface of the contacts ...
|
|
Common faults in the use of RKC thermostat Pt100 RTD
PT100 RTD is a platinum RTD, which can be regarded as a more commonly used thermometer in the range of medium and low temperatures, and it has a wide range of uses, including medical, electric, industrial production, thermometers and other high-precision thermometers. But due to the range of use ...
|
|
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 ...
|
|
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 ...
|
|
RLC thermostat - common faults and treatment methods of dry-type transformer thermostats
1. There is no display of dry-type transformer thermostat
Cause of failure: (1) The power supply of the thermostat is not connected; (2) The fuse is blown out.
Solution: (1) Turn on the power supply; (2) Replace the fuse.
2. The dry-type transformer thermostat shows that one or three phases are flashing and displays "-OP-"
...
|
|
Difference Between Thermocouple and RTD
In temperature measurement, thermocouples and RTDs are both contact temperature measurements, and although they both measure the temperature of an object, their principles and characteristics are different.
This article first introduces thermocouples, which are widely used in temperature measurement temperature control devices.
|
|
RLC thermostat – what is the difference between a mechanical thermostat and an electronic thermostat
Mechanical thermostat mainly refers to a temperature control method that adjusts refrigeration by rotating the button, with an expanding thermostat, which will automatically expand and contract according to the change of temperature, so as to control the power supply, the most primitive type, and the structure is relatively simple.
Advantages of mechanical thermostats:
...
|
|
RKC thermostat wiring needs to pay attention to
Wiring Notes:
1. For thermocouple input, the corresponding compensation wire should be used.
2. RTD input, 3 wires with low resistance and no difference should be used.
3. The input signal line should be far away from the power line of the instrument. Power supply and load lines to avoid noise interference.
...
|
|
Contact
working hours
