W3231 Temperature Controller DC12V 24V AC110V 220V Digital Thermostat Thermoregulator for Incubator Box Temperature Meter Test
Temperature controller instruction manual：
Temperature control range: -55°C~120°C/-67°F~ 248°F
Temperature control accuracy: 0.1 °C / 0.1 °F
Display color: red + blue
Working power supply: DC12V DC 24V AC110V~220V
Sensor: NTC 10K 1 Meter (with probe)
Product Size: 79.2mm×41.9mm×26.3mm
Hole Size: 72.1mm×39.2mm
product weight: 52g（12V/24V）,59g（110V~220V）
Operation and display panel:
| Code | Function | Set range | Default |
| P0 | Heat/Cool | H/C // | C |
| P1 | Backlash | 0.1°~30°/0.1°~54° | 0.1°/0.1° |
| P2 | Set upper limit | -55°~120°/-67°~248° | 120°/248° |
| P3 | Set lower limit | -55°~120°/-67°~248° | 120°/248° |
| P4 | Calibration | -10°~10°/-27°~27° | 0°/0° |
| P5 | Delayed start | 0-10min | 0 |
| P6 | Alarm temperature | -55°~120°/-67°~248° | 120°/248° |
| P7 | Temperature unit | °/° | ° |
| P8 | Data lock | ON/OFF | OFF |
Warning code
| Code | Reason for error | Solution |
| HHH | Temperature exceeds alarm temperature | The temperature drops below the alarm temperature and returns to normal. |
| LLL | No temperature sensor detected | Replacement reconnect temperature sensor |
Indicator light
| Color | Indicating situation |
| Red | The red light flashes and the heating mode is delayed.;The red light is always on, heating mode is running. |
| Blue | Blue light flashes, cooling mode delay starts; The blue light is always on ,cooling mode is running. |
Operation guide
1. Short press “SET” small digital tube to flash, press “△” or “▽” to set the target temperature, press “Standby” button or no operation to save the setting within 3 seconds.
2. Press and hold “SET” to enter the code setting mode, press “△” or “▽” to switch the code. After selecting, press “SET” to enter the code setting. After setting, press “Standby” button or no operation to save the setting within 3 seconds. .
3. The last parameter setting is saved by default after shutdown.
4, restore the factory settings: press and hold "SET" to power on.
5. When the module is powered on, it will start directly. After power-on, press and hold the “standby” button, the module will enter “sleep” or “wake up”; in case of power failure, the module will run automatically after power recovery, no need to start manually.
