Communication, automatic control, mechatronics, and power electronics are among the most important control elements.
Relays generally have a sensing mechanism (input part) that can reflect a certain input variable (such as current, voltage, power, impedance, frequency, temperature, pressure, speed, light, etc.); it can achieve "through" and "controlled" circuits. "Off" control of the implementation of the mechanism (output part); In the input and output parts of the relay, there is a coupling mechanism for the input isolation, functional processing and driving the output part (drive part).
As a control element, in summary, the relay has the following functions:
1) Extend the control range: For example, when the multi-contact relay control signal reaches a certain fixed value, the multi-circuit circuit can be switched, disconnected, and connected at the same time according to the different forms of the contact group.
2) Amplification: For example, sensitive relays, intermediate relays, etc., with a very small amount of control, can control a large power circuit.
3) Synthetic signal: For example, when multiple control signals are input to the multi-winding relay in the specified form, they are compared and integrated to achieve the desired control effect.
4) Automatic, remote control, monitoring: For example, the relays on the automatic device together with other electrical appliances can form a program control circuit to achieve automatic operation.
Jingcheng heat meters are measuring devices for a precise consumption metering. For measuring the heat which, in a heat-exchange circuit, is absorbed or given up by water called the heat-conveying liquid.From the start, we have developed innovative products based on the technology in dialogue with our customers. The result is a collection of well-engineered measuring instruments proved time and again in practice, because exact consumption values are only possible with precise measuring technology.
With our sophisticated line of products, we have set the standards in heat metering technology for years – and have done so with an eye on quality, the needs of our customers and an awareness for absolute precision.
The flowsensor measures the flow rater of the hot water passing through the heat exchange system and transfer the result to the calculator by pulse.The temperature sensor measures inlet temperature and outlet temperature of the heat exchange system.
There are three types of heat meters: woltman heat meter, multi-jet heat meter and ultrasonic heat meter.
1.Woltman heat meter:
.ultra reliable metering
.Excellent long-term stability and reliability
.Battery powered -10 years life expectancy
.AMR and cellular networks ready with various output model
.Programmable Display (units and outputs resolution)
2.Multi jet heat meter:
. ultra reliable metering
. Excellent long-term stability and reliability
. Battery powered -10 years life expectancy
. AMR and cellular networks ready with various output model
. Programmable Display (units and outputs resolution)
3.Ultrasonic heat meter
.Components: flow sensor,temperature sensor and calculator.
.No moving parts permitting the most reliable and longer term life;
.High accuracy in Class 2;
.Installation method:supply or return flow at horizontal.
Heat Meters,Smart Heat Meters,Ultrasonic Heat Energy Meter,Ic Card Residential Water Meter
Ningbo Jingcheng Technology Co., Ltd. , https://www.jingchengmeter.com