STC-3008 Manual
Specifications
- Power supply: 110-220VAC ± 10%, 50/60Hz (or DC12V / DC24V)
- Measuring and controlling temperature range: -55°C to +120°C
- Resolution: 0.1°C
- Accuracy: ±1°C
- Relay output contact capacity: heating: 10A/240VAC, cooling: 10A/240VCA
- Sensor: NTC sensor, cable length 1 meter
- Shell material: gray ABS flame retardant plastic shell
Device Layout and Operation
Front Panel
The front panel features two digital displays for temperature readings, output indicators, and control buttons.
Display temperature 1: Shows the current measured temperature.
Display temperature 2: Shows the set temperature.
Output indicator: Lights up when the output relay is active.
Start setting key 1: Used to enter setting mode and adjust parameters.
Stop setting key 1: Used to confirm settings and adjust parameters.
Start setting key 2: Used to enter setting mode and adjust parameters.
Stop setting key 2: Used to confirm settings and adjust parameters.
Entering Setting Mode
Press the "Up Button 1" and "Up Button 2" simultaneously to enter the setting mode.
Parameter Settings
Parameter Table
| Code | Features | Setting range | Defaults |
|---|---|---|---|
| P0 | Output 1 delay protection | 0-60 minutes | 0 |
| P1 | Output 2 delay protection | 0-60 minutes | 0 |
| P2 | High temperature alarm | -55~120°C | 120°C |
| P3 | Low temperature alarm | -55~120°C | -55°C |
Temperature Control Modes
Heating Mode
Condition: Start temperature < Stop temperature
Example: Set to start heating at 25°C and stop heating at 30°C.
Procedure:
- Press "Up key 1" once to display the start temperature.
- Press and hold "Up key 1" for 3 seconds to enter adjustment mode.
- Use the up and down keys to set the start temperature to 25°C.
- Press "Down key 1" to display the stop temperature.
- Press and hold "Down key 1" for 3 seconds to enter adjustment mode.
- Use the up and down keys to set the stop temperature to 30°C.
- The settings are saved automatically after a short period of inactivity.
Cooling Mode
Condition: Start temperature > Stop temperature
Example: Set to start refrigeration at 50°C and stop refrigeration at 45°C.
Procedure:
- Press "Up key 1" once to display the starting temperature.
- Press and hold "Up key 1" for 3 seconds to enter adjustment mode.
- Use the up and down keys to set the start temperature to 50°C.
- Press "Down Button 1" to display the stop temperature.
- Press and hold "Down Button 1" for 3 seconds to enter adjustment mode.
- Use the up and down buttons to set the stop temperature to 45°C.
- The settings are saved automatically after a short period of inactivity.
Wiring Diagrams
Independent Load Wiring Diagram
This diagram illustrates the connections for a setup where the output relays control separate loads.
Connections:
- Power Input: Connect to 'N' (Neutral) and Live/Phase terminals.
- Sensor: Connect the NTC sensor to the designated sensor terminals.
- Output 1: Connect the load for Output 1 to the 'Output' terminals.
- Output 2: Connect the load for Output 2 to the second set of 'Output' terminals.
[Diagram Description: Shows power input terminals labeled 'N' and Live, sensor input terminals, and two sets of output terminals for loads.]
Same Load Wiring Diagram
This diagram shows connections for a setup where both outputs control the same load or are wired in parallel.
Connections:
- Power Input: Connect to 'N' (Neutral) and Live/Phase terminals.
- Sensor: Connect the NTC sensor to the designated sensor terminals.
- Output: Connect the load to the 'Output' terminals, potentially using both sets if the load requires it or for redundancy.
[Diagram Description: Shows power input terminals labeled 'N' and Live, sensor input terminals, and two sets of output terminals connected to a single load.]
