The Messko partial oil level thermometer adopts the principle of pressure measurement, and the system mainly consists of a temperature bulb, a capillary tube, and a spring tube (Bourdon tube). The warm bulb is directly immersed near the oil surface of the oil filling equipment, and filled with low boiling point liquids or gases such as chloromethane, acetone, etc. inside. When the oil temperature changes, the medium inside the temperature chamber expands due to heat or contracts due to cold, resulting in a change in pressure. This pressure change is transmitted to the spring tube through a slender capillary tube, causing deformation of the spring tube. The deformation of the spring tube drives the connected transmission mechanism, and ultimately drives the pointer to indicate the corresponding oil temperature value on the dial.
Messko has advantages in capillary technology, with a capillary inner diameter of only 0.1mm and an outer diameter of 1.0mm, which is thinner compared to other brands. The thinner capillary makes the thermometer more sensitive to temperature changes, with an accuracy of ± 2 ° C, while some competitors have an accuracy of only ± 3 ° C. At the same time, this thin and elastic capillary has a minimum bending radius of 10mm, much smaller than the 25mm of other companies' products, making it easier to lay in complex installation environments and greatly improving installation convenience and measurement accuracy.
Messko oil level thermometer from GermanyThe ways to achieve remote monitoring vary depending on the model and configuration. The following are common implementation methods and related component introductions:
Using composite sensor module: For some models, such as MT-ST160F, remote temperature transmission requires a separate composite sensor module Combi Well. This module can remotely transmit the oil temperature values measured by the thermometer.
With the help of digital temperature sensors such as TT-PWM61 and TT-PWM62 (based on bus technology), process monitoring can be connected to the control system. TT-PWM62 is also equipped with an analog thermometer that can read on-site temperature values. These sensors use PWM technology and do not require calibration of the selected output signal. They have functions such as temperature measurement, display, alarm, and remote transmission of measured values.
Paired with measurement value converter or dynamic coil instrument: If remote temperature display is required, a measurement value converter or a separate dynamic coil instrument can be used to achieve 17.
Using specific output interfaces: Some Messko oil level thermometers or related devices (such as Messko MTO oil level indicators and similar products, although mainly used for oil level measurement, some functional principles can be referenced) have optional outputs, such as RS485 Modbus RTU or 4-20mA interfaces. Through these interfaces, measurement data (including oil temperature and other related information, if it is a multifunctional measuring device) can be remotely transmitted in the form of digital or analog signals to control cabinets and monitoring systems (such as ETOS) ®) Remote monitoring and processing can be carried out in control rooms, etc.
Connecting digital indicators: Remote display can be achieved by connecting digital indicators such as D1272AT. The digital indicator is installed in the control panel and can be connected to the analog output (Pt100 or 4-20mA) of the combination sleeve or ZT-F2.1, or directly connected to the analog input (4-20mA) of the thermometer or oil level indicator. It can also select two freely adjustable limit contacts and various output signals (0/4-20mA, 0-5V, 0-10V) for signal processing, thereby achieving the function of remote display of oil temperature and other related measurement values.