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From the earliest traditional moving coil type, the temperature regulator has experienced several periods of electronic analog, digital display, and intelligent. In terms of developing trends, smart temperature conditioners are the main stream that will be developed in the future, and they are unmatched by other temperature conditioners in terms of function, accuracy, and operation and control. Temperature conditioning instrument can be widely used in metallurgy, chemical industry, light industry, textile, plastic machinery, household appliances, baking ovens, laboratories, refrigeration, medical and many other industries for temperature measurement and high precision in the range of -200~1800°C. Control. With corresponding sensors, it can also broaden the display and manipulation of physical quantities such as pressure, flow, and liquid level.
The temperature setting methods are classified into:
(1) Potentiometer setting After the panel temperature adjustment knob and scale panel cooperate to set the corresponding required operating temperature value. This kind of temperature setting can't use the knob to set the potentiometer to judge the sensitivity of the appearance, but use the input signal that changes the corresponding specification to judge the sensitivity of appearance.
(2) The potentiometer cooperates with the meter (or digital display) to set this setting method. The dial switch or button switch on the outer surface board needs to be turned or pressed in the set position, and then the corresponding setting is rotated. Fixed potentiometer, at the moment the head pointer (or digital display) will change, when the pointer refers to (digital display) the desired set value; the final toggle switch or button switch to return to the "measurement" position.
When manipulating the three-position control, you need to turn the switch to the upper or lower limit and turn the corresponding potentiometer to set. After the setting is completed, return the toggle switch to the “measurement†position.
(3) DIP switch is directly set to set the required temperature value directly on the dial switch. It is not necessary to use the switch to change the measurement and setting. It is more convenient to use. When setting up this method, attention must be paid that the appearance itself cannot be exceeded. Quantity scale.
(4) Button setting The smart appearance can go through the corresponding button on the panel, according to the external chip setting program can control the upper and lower limits of the temperature alarm value, hysteresis, PID parameters, error correction parameters formed by the orientation of the sensor device can be controlled by the external device can pass The corresponding button on the panel is set and displayed in real time.
(5) Other precautions when setting the temperature When the appearance of the time ratio, zero-crossing, and phase-shift conditioning function is selected, the potentiometer of the “manual re-adjustment†(or “error adjustmentâ€) character is used on the panel for output. When the steady state heating system is in balance, the load heating power is large or small, so that the measured value produces a static difference that is higher or lower than the set value. (The static value is the temperature value and setting when the output is in the steady state. The difference between the fixed value, conditioning the potentiometer to mark the "+" direction, increase the heating power, and vice versa, to reduce the heating power to the "-" direction, in order to eliminate errors, habits are not the same working conditions.
Chongqing Self-Controlled Equipment Co., Ltd. Main Products/Services: Specializing in the production of special instruments for China Power Station: XWT-122C intelligent temperature regulator, XWD-2221-64 intelligent temperature inspection instrument, ZXD-01 intelligent speed control device, ZXD-03T Intelligent tooth gear speed control device, PLB-II generator over-current over-voltage protection, XW-PLB generator integrated protection, shear pin controller, special sensors for hydropower stations and other widely used instruments in China power stations.
Temperature regulator development type
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