XH-W1818 High Precision Microcomputer Temperature Controller Circular Digital Display Embedded Thermostat
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Product Name: High precision microcomputer temperature controller
Product model: XH-W1818
Temperature range: -50~110°C
Resolution: 0.1 ° C
Temperature control range: -50~110°C
Temperature control accuracy: 1 ° C
Temperature probe: NTC10K (B3950) L=1M
Supply voltage: DC12V/DC24V/AC220V
Applicable environment: -25~55°C Humidity 50%-85%
Output type: 10A relay output
Appearance size: diameter 80mm
Opening size: diameter 61mm/3mm
How to use:
1. Connect the power supply and load according to the instructions. Please do not overpressure and overload.
2. Setting mode, long press SET button for 5 seconds will display P0. Press SET button shortly to set H to heating mode and C to cooling mode (up and down button to switch)
3. Set the stop temperature, press the SET button once to flash the screen, and then press the up and down keys to set the desired stop temperature.
4. Press and hold the SET button for 5 seconds to display P0, press the up and down keys to switch to P1, then press the SET button to set the difference back (press the up and down keys to adjust). If the heating mode H needs to control the temperature between 36-38 degrees , then the stop temperature is set to 38 degrees and the back difference is set to 2 (the highest temperature minus the lowest temperature)
5. Indicator light. SET light is on to indicate that the parameter is being set; OUT indicator is flashing to indicate the start delay, and always on to indicate the output.
Setting function description:
Press SET button for 5 seconds to enter internal parameter setting, up and down button to switch P0-P7
|Code||Code description||Setting||Factory setting|
|P2||Set upper limit||Max. 110 ° C||110°C|
|P3||Set lower limit||Min. -50 ° C||-50°C|
|P5||Delayed start||0-10 minutes||0|
|P6||High temperature alarm||-50~110°C||110°C|
P0: Heating and cooling mode H/C
The low temperature start is the heating mode, set to H. For example: the actual temperature is 21 ° C, the temperature needs to be controlled between 36-38 ° C, we set P0 to H heating mode.
The high temperature start is the cooling mode, set to C. For example: the actual temperature is 38 °C, and the temperature needs to be controlled between 24-26 °C. We set P0 to C cooling mode.
P1: Hysteresis setting
In heating mode (H): The measured value starts the output heating to the set value when the set value – hysteresis.
For example, to control an indoor temperature between 36 and 38 ° C, the actual temperature is 20 ° C, heating equipment is required to heat room, P0 is set to H, the stop temperature is set to 38 degrees, and P1 is set to 2. (High temperature – low temperature = hysteresis, 38-36 = 2)
In cooling mode (C): When the measured value >= set value + hysteresis, the output cooling is started until the set value stops.
For example, to control an indoor temperature between 24 and 26 ° C, the actual temperature is 36 ° C, the cooling equipment is required to cool room, P0 is set to C, the stop temperature is set to 24 degrees, and P1 is set to 2. (High temperature – low temperature = hysteresis, 26-24 = 2)
P2: Limit the maximum set value (non-temperature control setting): up to 110 °C
For example, if P2 is set to 50 °C, then when you set the operation, the maximum temperature can only be set to 50 °C.
P3: Limit the min. set value (non-temperature control setting): min. -50 °C
For example, if P2 is set to 20 °C, then when you set the operation, the set min. temperature can only be 20 °C. Since P2 is set to 50 degrees and P3 is set to 20 degrees, then you set is only Can be adjusted between 20~50 degrees.
P4: Temperature correction
When the measured temperature deviates from the standard temperature, this function can be used to correct the corrected temperature = temperature before correction + correction value
For example, the probe measurement temperature is 22.8 ° C, the standard temperature is 24.2 ° C, you need to increase the height by 1.4 degrees, set P4 = 1.4
For example, the probe measurement temperature is 26.31 ° C, the standard temperature is 23.5 ° C, it needs to be lowered by 2.8 degrees, and P4 = -2.8 can be set.
P5: Delay start time: 0~10 minutes
When controlling the cooling of the compressor equipment, the delay time can be set as required. When the controller outputs, the equipment will not start immediately, and it needs to be started after the set delay time has elapsed. (Non-compressor control is set to 0)
P6: High temperature alarm
When the measured value is greater than the alarm value, the screen temperature flashes and the drip sound alarm, the output is forcibly turned off in the heating mode, and the output is not turned off in the cooling mode.
P7: Data lock function
Turn on the data lock, P7 is turned ON to save the current setting parameters without being changed. At this time, the setting temperature and function are invalid. If you need to modify, you need to enter P7 to turn OFF to turn off the data lock function.
1 x High precision microcomputer temperature controller
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