This temperature controller is realy good stuf , have LED display,probe and another plus. I buy and sell cca 30 pcs , all the pieces come in order and yet there was no complaint.In my review you see pros and cons, detailed instructions how to plug and set this device with technical parameters.
Now I am describing my experience with the XH-W1209 thermostat, I tested about 380 only two pieces have bad display did not show one digits, but functionality is OK.
Its bigger post please use navigation menu for quick move:
Here are the pros and cons of XH-W1209 temperature controller:
Here is pros
- Control accuracy is 0.1 °C it is a great advantage !
- Small size only 48 * 40mm
- Easy instrument control (explained later in post)
- Owns all the main functions that need good thermostat hysteresis, calibration, delayed start, and other ..
- Very good price To buy a this thermostat for 2-3 usd see my verified shops
Here is cons
- Missing housing, the possibility of short circuiting when handling bad
- Temperature sensor could be longer, sensor is 30 cm long I would welcome about 1 meter
- I not see in market fahrenheit verziu or 220V/110V can buy only 12V DC celsius version
- When mounting the panel may have trouble relay and terminal board is higher than the display and buttons
Detailed description of temperature controller XH-W1209
Now I will describe thermostat and control , i will try to describe accurately.The device XH-W1209 includes five main components:f
- The display is red, it shows three digits, the amount of 1 cm and length of 2.3cm.Clearly shows the temperature value withe the one decimal place.
- Below the display are three buttons which control the thermostat XH-W1209. First buton is “SET” with next two buttons are + and – are used for menu navigation increasing or decreasing values
- Below the buttons is black one way relay to turn on or off an electrical circuit.Seller uses the value of 10 amperes, 250 volts. The relays can switch from AC circuits suitable for US 110V or EU 230V.
- Do we involve green terminal two terminals for the relay K0 and K1 and two terminal for power from 12V transformer or battery + 12V and GND.
- The sensor for the temperature controller XH-W1209 is placed in a simple white socket.It is about 30 cm long with active iron end.Type of temperature sensor is clasic NTC 10K 0.5% .
Short video about temperature controller:
Functions and settings of the thermostat
At the beginning it is good to introduce thermostat control for easy work. The XH-W1209 has three control buttons on the SET, + and -.If you press the SET button for 2 seconds enters the menu with seven options for setting the thermostat (P0,P1,P2,P3,P4,P5,P6).
Here is basic schematic for temperture controller XH-W1209
In the temperature controller XH-W1209 menu will move with buttons + and – to select the value or raising or lowering the temperature.
The red LED display indicates when the relay is activated.Always shines as long as the relay is activated.If the relay is switched off LED off.
PO Heating or Cooling ?
Here we set the temeperature controller operation mode C- cooling , H-heating.
If you set Cooling (C) temperature controller will be activated relay when temperature falls to the setpoint.
If you set Heating (H) temperature controller will be activated relay when temperature raise to setpoint.
P1 – Hysteresis or Return diference set
This device model can value set by 0.1C and the lowest value is 0.1C.This is a very useful feature for precise operation of the temperature controller.For example, if you set the value of 1C and the desired temperature on the thermostat 20C relay will be deactivated at 21C (20C+1C). The relay is activated again when the temperature drops to 20C.
P2 – Highest temperature limit
You can set a maximum temperature limit, less than 110 degrees.
P3 – Lowest temperature limit
You can set minimum temperature limit more as 50 degrees.
P4- Temperature correct or calibration
Very good feature that lets you set your thermostat by certified accurate thermometer.
If you do not have a certified thermometer leave the value at 0C. Calibration allows you to adjust the temperature in 0.1 increments.
P5-Delay starting time
P6-High temperature Alarm
The menu P6 initially turns OFF to ON and press the SET,then set the temperature at which the alarm is activated. When is alarm activated display not showing temperature only – – -.
The device has a low consumption of 25-35 mA at rest 50-75 mA when the relay is activated.
Be careful if the power supply voltage lower than 10V relay is not activated although the LED shining.
Price and buy
Temperature controller can buy from Ebay or AliExpress, good price varies around about 3-6 usd shipping included.Keep in mind that at low cost 3-4 usd sell thermometers not temperature controllers but the XH-W1209 is very cheap
I buy from “Ketoo Store” from aliexpress, shopping’m over 20 times and goods always come right. Delivery takes 12-16 days:
|Price 2.60$ / one unit||Free shipping from Ketoo store (Aliexpress)|
|Price 3.90$ / one unit||Free shipping from Banggood (china store)|
Complete technical parameters of temperature controller XH-W1209:
- Control range: -50*-110 degrees Celsius
- Resolution: the -9.9-99.9 of 0.1 degrees Celsius, 1 degrees Celsius temperature section of the other
- Accuracy of temperature: 0.1 degrees
- The control accuracy: 0.1 degrees Celsius
- Return difference accuracy: 0.1 degrees Celsius
- The refresh frequency: 0.5s
- High temperature protection: 0-110 degrees Celsius
- Input voltage: DC 12V
- Measurement of the input: NTC (10K 0.5%) waterproof type sensor
- The output range: 1 10A relay
- Environmental requirements: -10-60 degrees Celsius, humidity: 20%-85%
- Size: 48*40mm
- Power consumption: static current: <=35MA operating current: <=65MA
- Display type: 0.28 inch three digital tube
Short manual again:
Connect the power supply and the negative,
Can provide power supply controller for temperature measurement, displayed, press the SET key once, display temperature scintillation,Press +- to set the desired temperature, the setting is finished,
press SET as confirmed return,This controller according to the set to automatically perform the relay on-off. The temperature controller output for the 10A relay, to meet a variety of high power load, please ensure that the wiring is correct.
Indicator lights, digital tubes state description:
Indicator: put out the said relay disconnected, ofen light said the relay is closed,display HH for exceeding the measurement range,the thermostat will force disconnect relay;display – for high temperature protection.