Adjusts the derivative action to respond quickly to sudden changes in temperature. Control Cycle Time
Look at the home screen. The top red number () is the current live temperature. The bottom green number ( SV ) is your target. Press the Left Arrow ( ←left arrow
: Features a dual-display interface showing both the Process Value (PV) (current temperature) and the Set Value (SV) (target temperature). High Accuracy : Measurement accuracy of FS with a maximum resolution of 0.1∘0.1 raised to the composed with power for thermocouples and RTDs.
The system needs to be auto-tuned. Run the AT function, or increase your P and D variables manually.
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| Problem | Possible Cause | Solution | | :--- | :--- | :--- | | | No power to the unit; Incorrect wiring; Blown fuse. | Check power at Terminals 1 & 2; Verify wiring; Inspect fuse. | | Incorrect Temperature Reading | Sensor wiring error; Wrong sensor type selected in settings; Damaged sensor. | Verify sensor wiring to Terminals 8, 9, 10; Check controller's input type setting; Replace sensor if needed. | | Temperature Unstable / Overshoots | PID parameters are not optimized for the system. | Run the Auto-Tune function to let the MC101 optimize its parameters. | | Output Not Activating | Output wiring error; Output type mismatch (relay/SSR); Controller is in manual mode. | Check relay/SSR wiring; Ensure output type matches connected device; Switch controller to automatic control mode. |
• Test for 85-265V AC power across terminals 1 and 2 using a multimeter.• Check line fuses or circuit breakers.
Selects the sensor input type. • K : K-type Thermocouple• J : J-type Thermocouple• P10 : Pt100 RTD SLL Scaling Low Limit The lowest temperature value the controller can read/set. SLH Scaling High Limit The highest temperature value the controller can read/set. Ctrl Control Mode
The MC101 is designed for panel mounting. You will need to cut a square hole of approximately (1.77 x 1.77 inches) in your control panel. The controller is then secured in place using the provided mounting bracket. The overall dimensions of the unit are about 48 x 48 x 85 mm. Adjusts the derivative action to respond quickly to
The cover is utilitarian: “SINOTIMER MC101 – Multifunctional Timer Relay – User Manual” against a simple white or blue background. The language is predominantly English (as a lingua franca for industrial electronics), though many editions also include Chinese, German, or Spanish sections. The overall tone is technical, concise, and occasionally terse—a style familiar to automation professionals, but potentially challenging for first-time users.
: Available in versions with Relay output or SSR (Solid State Relay) voltage output for high-speed switching. Key Functional Features
: High functionality for a low price point [17].
Based on standard Sinotimer MC-101 manuals found on Amazon and Scribd : : Press the SET button briefly. The bottom green number ( SV ) is your target
Under-range display error. Input signal is lower than the low limit ( SLL ).
In this layout, the timer acts as a direct switch supplying power to your load.
: Verify that your load current does not exceed the relay rating printed on the device to prevent contact erosion.