Household thermostat

Household temperature controller
Hello everyone. Today I will tell you about the regulator (thermostat) for home use. This is a complete device, nor any board that still needs something to power and know how to connect. Therefore, any person without any knowledge of electronics can cope with it, having looked at this video or reading the instruction that comes with it.
 Household temperature controller
The device is designed for temperature control from -40 to +120 degrees Celsius, can work on both heating and cooling. It can be used for an aquarium, terrarium, incubator, greenhouse, refrigerator, boiler, etc., and just to maintain the temperature in the room, for which, strictly speaking, I use it.
 Household temperature controller
In the spring and autumn heating either turn off early or turn on late.In the apartment with this eternal problem. I take this thermostat and connect a heater to it. As a result, there is always a stable temperature in the room, which I can set with great precision. The thermostat, which is located in the heater is no good - it supports the upper aisle of heating the heater, and generally works as soon as it pleases. In appearance, the thermostat is more like a power filter with a single outlet. The socket is universal and designed to plug in any state, ours is no exception. Above the socket is a display. The display is large, bright, two-row, two-color, so that the readings are visible from a great distance. Above the display is an indicator - an LED that indicates the load is on. In addition to the power plug, a temperature control sensor comes out of the temperature controller, which must be installed on the control object.
 Household Temperature Controller
Household thermostat
There are holes on the back of the case for wall or some other surface, which is very convenient.On the sides there are four rubber buttons that are comfortable to touch: two on the left and two on the right. Let's turn on the thermostat. The upper reading is the sensor temperature, which is displayed in real time, the lower one is the supported temperature that the user has set.
 Household thermostat
Agree that two-color readings look very nice.
Household Temperature Controller Let's analyze the function of the buttons and the available settings and modes. Here I give you a drawing of what is drawn on the buttons and described in the instructions that came in the kit. And again it is in Chinese and English. The first button on the left with the bottom is designated as you probably guessed it already - on-off. I want to upset you: you are mistaken, as I was mistaken. This is a reset to factory settings. If you need to roll back the device to the initial settings - just hold this button for more than 5 seconds until the upper (green) readings flash.After that, all settings will be reset. Press the same button again in order to stop the readings. Then the only and main menu of the device consists of 4 items: P0-P3. In order to get to this menu it is necessary to press and hold the “S” button for more than 3 seconds until “P0” appears. The value of this item is displayed in the bottom line. It is necessary to move from point to point with the same “S” button, points will be turned around in a circle P0-P3. Use the up and down arrows to set the values ​​you need. To exit the menu, press the reset button with the “on / off” icon, or wait for 5 seconds and only then the set values ​​will take effect. Now let's consider what all the menu items mean:
Household Temperature Controller Let's go through each item. P0 - our thermostat regulator has the ability to work as if it is burning, controlling say the heater. Including (closing) the relay contacts when the temperature drops below the set value (“H” mode). Either work on cooling by controlling, say, a cooler or a fan.Turning on (closing) the relay contacts when the temperature rises above a predetermined value (mode “C”). I will set the mode “H” for heating the room. P1 - maintain temperature. Set any value from -40 to +120. If the buttons with arrows are held for a long time, the readings themselves will begin to increase or decrease if you need to radically change the readings without pressing the buttons 150 times. I will set 29 degrees to demonstrate the instrument operation. P2 - Delay before switching on the load. As soon as the readings have reached the desired level, the time relay is triggered and, at the end, switches on the relay if the specified levels are in the response limit. If it is simpler to say, it happens that the temperature reaches 29 degrees, and after 2-3 minutes it drops again to 28, as a result of which a short-term switching of the load occurs, which may not really have a good effect. This is where the time relay can come in handy. I will set a zero. P3 - hysteresis or the difference between on and off temperatures. Initially, the factory settings are set at 0.5 degrees Celsius, which means that for the “H” mode, the load in my case will turn on when it reaches 28.5 degrees and turns off when it reaches 29 degrees. Initially, 0.5. I will leave it unchanged. I will connect the load. Turn on the thermometer.Since now the temperature is less than 29 degrees, the LED is on and the load is working, such as a heater. Now I am simulating the fact that the room has warmed up, and the load is turned off. Warmed up. Load off at 29 degrees. Leave to cool. The load switched on at 28.5 degrees. If the sensor reading exceeds the value of +120 degrees, the display will show "HHH". And if the temperature drops below - 40 degrees, the display will show “LLL”. The same readings can be highlighted when a sensor malfunctions or wire breaks to it. Here we looked at the thermostat in action. Now I will tell about the warning mentioned in the instructions: 1. The device can not be installed in places where water drips exceeded the humidity of 90%. The sensor itself is sealed and can be installed anywhere, but the device does not tolerate water and high humidity. 2. The temperature sensor wire should go separately from high-voltage wires. Since interference with the network can affect the readings of the device. 3. The thermostat controls mainly the energy-intensive load, so pay special attention to the reliability of the electrical connections: the thermostat with the network,regulator with a load. Let's go over the characteristics of this device:
  • Model: MH-2000
  • Color: black
  • Material: PC plastic.
  • Operating voltage: 90 V 250 V
  • Rated current: 10A.
  • Power consumption: ≤ 3 W.
  • Standby power consumption: ≤0. 5 W.
  • Temperature control accuracy: 0.1 ° C.
  • Resolution: 0.1 ° C.
  • Measurement error: ± 0. 3 ° C.
  • Regulation range: -40 120 ° C.
  • Rotary temperature range: 0.1 30 ° C (adjustable).
  • Operating temperature: -20 70 ° C.
  • Operating humidity: 90% RH, non-condensing.
  • Temperature sensor: NTC 25 degrees = 10 K B3435 ± 1% (1.48 m).
  • Power wire length: 1.5 m.
  • Sensor wire length: 1.5 m.
  • relay:. 10A / 250V
  • Size:. 155h60h28 mm
  • Weight: 245.2 g
  • Package size: 155х60х28.5 mm.
  • Package weight: 317 g.
In conclusion I want to say the general impression: the regulator has a high-quality housing, wires, buttons. The case has a full size, which is very good, this is not a Chinese trifle. It feels like it is definitely not cheap, which today or tomorrow will break or crack. Impressions of work and external quality is very positive. The regulator in my area of ​​the month worked for me: there are no complaints or comments,I'll put 5 for the job.
Household Temperature Controller
This is a great household temperature controller. I personally really liked it.

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