Features:
1. This machine adopts fully enclosed environmentally friendly compressor refrigeration. The system adopts international advanced fluorine-free environmental protection refrigeration technology, which has the advantages of energy saving and environmental protection.
2. The refrigeration system has multiple protection devices for overheating and overcurrent.
3. Temperature microcomputer intelligent control, simple operation, good temperature stability, upper and lower temperature over temperature alarm, PID automatic control.
4. Large-screen LCD display, using international display standards, with a variety of function indicators, the user at a glance.
5. The intelligent microcomputer can correct the deviation of the temperature measurement value, and the temperature correction accuracy is 0.1 °C.
6. The special user PID can be self-adjusted and has a temperature self-tuning function.
7. There are internal and external circulation, and the external temperature can be externally introduced into the tank to establish a second constant temperature field. It can also be used as a cold source (heat source) to introduce the liquid in the tank, which can reduce (rise) the outer experimental container of the tank. The temperature is extended to the range of use.
8. The instrument uses a dual temperature sensor. When the operating temperature is higher than the ambient temperature by 5 °C, the instrument automatically cuts off the cooling function. Greatly improve energy efficiency and extend the life of the compressor. It is a novel energy-saving product.
Technical Parameters
| Model | CK-4005GD | CK-4007GD | CK-4010GD |
| Temperature Range | -40–200℃ | -40–200℃ | -40–200℃ |
| Volume | 5L | 7L | 10L |
| Display Resolution | 0.1 ℃ | 0.1 ℃ | 0.1 ℃ |
| Pump Flow | 20L/min | 20L/min | 20L/min |
| Heating power | 800W | 1200W | 2500W |
| Cooling power | 1322W | 2329W | 3610W |
| Drainage | Yes | Yes | Yes |
| Voltage | 220V/50Hz | 220V/50Hz | 220V/50H |
Interface description:
Description of each function key:
1. Cooling indicator: When the cooling output is on, it flashes when the cooling delays, and turns off when the cooling is off;
2. Circulating pump indicator light: when the circulating pump output is on, it is off when it is off;
3. Heating indicator: When there is heating output, it will be on, when heating is off, it will be off;
4. Water level indicator: When the water level alarms, it lights up;
5. Self-tuning indicator: flashing at self-tuning;
6. RUN run key: long press to start and stop running.
7. SET setting button: used for setting value modification, parameter recall and parameter modification confirmation;
8. LEFT shift key: used to set value, shift control parameters or enter auto-tuning;
9. UP increase key: used for query of setting value, control parameter modification or running status; for long press, environment temperature query can be performed.
10. DOWN reduction key: used to modify the set value and control parameters; long press in the standard state to view the current running number of the remaining running period.
11.RUN+SET key combination; single point and program control switching
12.SET+LEFT key combination; internal parameter setting
NOTE: If the display area TEM Measure “” then the sensor is open or the input signal exceeds the measurement limit; if “” is displayed, then the short circuit or the sensor input signal is under range, when the input signal is not within the measuring range of the instrument, the buzzer Tweet, press any key to silence.
