is a digital temperature controller often used in industrial machinery like plastic molding machines, ovens, and packaging equipment. It typically features an LED display for both the measured value (PV) and the set value (SV). Made-in-China.com Key Specifications Input Types:
Generally supports K, E type thermocouples or PT100 thermal resistors. Power Supply: AC 220V or AC 380V. Dimensions: 72 x 72 x 100mm (with a 68 x 68mm hole size). Control Mode: Typically On/Off or time-proportional control. Made-in-China.com Basic Operation & Setting
To operate the controller, you generally use the front panel buttons: Set Point (SV) Adjustment: key to enter the setting mode. arrow keys to increase or decrease the target temperature. again to save the value and return to the main display. Auto-Tuning (if applicable):
Some models allow for automatic adjustment (AT) to find the best control parameters. Error Indicators:
If the display shows "000" or "OVER," it often indicates a damaged temperature sensor or an input signal that is out of range. Wiring Overview xmtd-2201 manual
While you should always check the diagram on the physical unit’s label, standard wiring for this series typically includes: Power Input: Terminals for AC 220V power. Sensor Input:
Specific terminals for connecting your thermocouple or PT100 sensor.
If you can confirm the brand (e.g., XINJE, Yudian, RKC, or generic) and exact model suffix (e.g., XMTD-2201, XMTD-2202, etc.), I can refine this further.
To access advanced settings, press and hold the SET button for approximately 3-5 seconds until the upper display shows a code (usually LC for Lock) and the lower display shows 0. is a digital temperature controller often used in
Enter the lock code (usually 003 or 001 depending on the firmware) using the arrow keys, then press SET to access the parameter menu.
Common Parameters:
| Code | Name | Description | Typical Setting | | :--- | :--- | :--- | :--- | | P | Proportional Band | Controls sensitivity. A lower number makes the controller react faster but may cause overshoot. | 10–20 | | I | Integral Time | Eliminates offset (error). | 200–300 | | D | Derivative Time | Prevents overshoot. | 30–50 | | AL1 | Alarm 1 | Sets a high-temperature alarm limit. | Set above max operating temp | | SC | Sensor Correction | Calibrates the sensor if it reads slightly off. | 0 | | Sn | Sensor Type | Selects the sensor input (K, J, T, etc.). | K (Default) |
Note: After adjusting parameters, press and hold SET to exit and return to normal operation. Power off
WARNING: Disconnect all power before wiring. Improper wiring will destroy the unit or cause fire. Refer to the sticker on top of the actual unit, as terminal assignments vary by manufacturer clone.
If you have completely misconfigured the parameters, reset the unit:
8888 then ---.SCC).| Parameter | Name | Default | Description & Your Action | | :--- | :--- | :--- | :--- | | SCC | Sensor Input Type | Varies | 0=K, 1=J, 2=E, 3=T, 4=S, 5=Pt100. Set to match your probe. | | S-H | High Limit | 400°C | Maximum allowed setpoint. | | S-L | Low Limit | -50°C | Minimum allowed setpoint. | | OP-A | Output Mode | 0 | 0 = Heating (Reverse action). 1 = Cooling (Direct action). | | P | Proportional Band | 30 | 1-999. Lower = aggressive heating. For ovens, start at 50. | | I | Integral Time | 240 sec | 1-3600. Removes steady-state error. Lower = faster, but unstable. | | D | Derivative Time | 60 sec | 0-999. Anticipates changes. Set to 0 for slow systems. | | T | Cycle Time | 20 sec | 1-100 sec. For relay output, use 15-20. For SSR, use 2-4. | | AL-1 | Alarm 1 Value | 10 | °C above SV. Set to 5 for limit alarm. | | HY-1 | Alarm Hysteresis | 2 | Prevents relay chatter. | | LOC | Lock Code | 0 | 0=Unlocked. 1=Semi-locked. 2=Fully locked. |
Critical Note: After changing SCC (sensor type), you must restart the controller (power cycle) for the change to take effect.
If your temperature overshoots wildly (goes 30°C above SV) or takes forever to reach temperature, you need to run Auto-Tune.
The XMTD-2201 is a microprocessor-based temperature controller. It uses a thermocouple or RTD sensor to measure temperature and controls a heating (or cooling) element via a relay output.
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