STC-8080A+. REF. Temperature Controller
The STC-8080A+is a microcomputer-based digital temperature controller primarily used for refrigeration systems requiring cooling and automatic defrost management. It is a “single sensor” unit that uses one NTC probe to monitor the main storage area.
Technical Specifications
- Power Supply: 220VAC ±10%, 50/60Hz.
- Measurement Range: -50°C to +99°C.
- Controllable Range: -40°C to +50°C.
- Accuracy: ±1°C between -40°C and 50°C; ±2°C for other ranges.
- Relay Capacity: Typically 10A or 17A at 220VAC (check specific unit for exact rating).
- Sensor Type: NTC sensor (10KΩ/25°C), 2 meters long.
- Protection: Front panel is IP64/IP65 rated for water and dust resistance.
Core Functions & Indicators
- Independent Outputs: Features two relays—one for the compressor and one for the defrosting unit.
- Compressor Protection: Includes a fixed, non-editable 3-minute delay after the compressor stops before it can restart.
- Safety Alarms: Features a built-in buzzer and flashing display for over-temperature limits or sensor failure (displayed as E1).
- Status Lights:
- Cool: On (Cooling active); Off (Stopped); Flash (Compressor delay protection).
- Defr: On (Defrosting in progress).
- Set: On (Currently in parameter setting mode).
Parameter Settings (Menu F1–F6)
To enter the menu, hold the Set key for 3 seconds until F1 appears.
| Code | Function | Set Range | Default |
|---|---|---|---|
| F1 | Temp. for Refrigeration Starts | F2 to 50°C | -10°C |
| F2 | Temp. for Refrigeration Stops | -40°C to F1 | -20°C |
| F3 | Temperature Calibration | -5°C to 5°C | 0°C |
| F4 | Defrost Cycle (Interval) | 0 to 99 Hours | 8 Hours |
| F5 | Defrost Duration | 0 to 99 Minutes | 15–20 Min |
| F6 | Over-temperature Alarm Limit | 0 to 50°C | 15°C |
Basic Operation
- Quick Check: Press ▲ to see the upper limit (F1) and ▼ to see the lower limit (F2).
- Forced Defrost: Hold the ▼ (or designated defrost) key for 3 seconds to manually start or stop a defrost cycle.
- Save Settings: After changing parameters, press Set to save. If no keys are pressed for 30 seconds, it returns to normal display without saving.
Description
Description
The STC-8080A+is a microcomputer-based digital temperature controller primarily used for refrigeration systems requiring cooling and automatic defrost management. It is a “single sensor” unit that uses one NTC probe to monitor the main storage area.
Technical Specifications
- Power Supply: 220VAC ±10%, 50/60Hz.
- Measurement Range: -50°C to +99°C.
- Controllable Range: -40°C to +50°C.
- Accuracy: ±1°C between -40°C and 50°C; ±2°C for other ranges.
- Relay Capacity: Typically 10A or 17A at 220VAC (check specific unit for exact rating).
- Sensor Type: NTC sensor (10KΩ/25°C), 2 meters long.
- Protection: Front panel is IP64/IP65 rated for water and dust resistance.
Core Functions & Indicators
- Independent Outputs: Features two relays—one for the compressor and one for the defrosting unit.
- Compressor Protection: Includes a fixed, non-editable 3-minute delay after the compressor stops before it can restart.
- Safety Alarms: Features a built-in buzzer and flashing display for over-temperature limits or sensor failure (displayed as E1).
- Status Lights:
- Cool: On (Cooling active); Off (Stopped); Flash (Compressor delay protection).
- Defr: On (Defrosting in progress).
- Set: On (Currently in parameter setting mode).
Parameter Settings (Menu F1–F6)
To enter the menu, hold the Set key for 3 seconds until F1 appears.
| Code | Function | Set Range | Default |
|---|---|---|---|
| F1 | Temp. for Refrigeration Starts | F2 to 50°C | -10°C |
| F2 | Temp. for Refrigeration Stops | -40°C to F1 | -20°C |
| F3 | Temperature Calibration | -5°C to 5°C | 0°C |
| F4 | Defrost Cycle (Interval) | 0 to 99 Hours | 8 Hours |
| F5 | Defrost Duration | 0 to 99 Minutes | 15–20 Min |
| F6 | Over-temperature Alarm Limit | 0 to 50°C | 15°C |
Basic Operation
- Quick Check: Press ▲ to see the upper limit (F1) and ▼ to see the lower limit (F2).
- Forced Defrost: Hold the ▼ (or designated defrost) key for 3 seconds to manually start or stop a defrost cycle.
- Save Settings: After changing parameters, press Set to save. If no keys are pressed for 30 seconds, it returns to normal display without saving.
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