Characteristics
(1) With complete enclosed air- cooling compressor for refrigeration, low temperature thermostatic bath has outstanding advantages such as quick refrigeration and low noise.
(2) Refrigeration system is equipped with multi-purpose protection devices such as over heating, over current and so on.
(3) Temperature can be controlled by microcomputer, which can be operated simply, has alarming device for temperature under low temperature limit and over high temperature limit, and is equipped with PID automatic control.
(4) Use double windows in red and green, upper window displays measurement value in red, and lower window displays measurement value in green, both in LED.
(5) Intelligent microcomputer can adjust temperature setting allowance so that digital display distinguish-ability reaches 0.1℃.
(6) Special user PID can be adjusted.
(7) It has internal and external cycles, external cycle will discharge thermostatic liquid inside the bath, and establish No. 2 thermostatic bath, also it can discharge liquid outside as cooling or heating source, to lower (raise)temperature of external experimental vessels, and enlarge use scope.
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/50Hz |




Specific operation settings:
Please add liquid medium (such as silicone oil) in the water tank. If the instrument is used above 80 °C, the addition liquid should have 2cm space under the groove to prevent the oil from expanding and overflowing at high temperature.
Plug in the power cord and turn on the power switch on the back of the chassis.
Turn on the red boat switch on the back of the device (this switch is the circulation pump control switch), adjust the flow adjustment knob under the switch to adjust the flow of the circulation pump.





