Description
Advanced microprocessor controlling system guarantees the reliability and temperature stability
* Bright and clear LED digital display and setting for the working temperature, stirring speed, working time, and safety temperature
* Memory function for stirring speed and setting temperature, convenient for experiments with fixed conditions
* Liquid drainage above the control board to prevent liquids from accessing the system
* Direct connection for Pt100 temperature sensor for convenient solution temperature control
* Sealed outer shell and isolated critical parts design for enhanced longevity even in a harsh laboratory environment
* When the temperature of the top plate is above 60℃ , the hot-top indicator will light up for the user’s safety protection
PLUS serial – Advantages and Applications
* Anti-corrosion top late is easy to clean, can stand for high temperature
* Ceramic coated stainless steel top plate is suitable for relatively mild heating, good for small amount sample or a relatively
low temperature for large volume sample
* WH420 with four positions and WH620 with six positions, each of them can be controlled separately
* Both of WH420 and WH620 have the timer function
WH420 / WH620 Heating and stirring in parallel
* The multiple talents of WH420/WH620 are particularly suited for laboratories in which highly differing tasks are to be
coped with.
Specifications
| Model | WH420 |
| Display Mode | LED |
| Top Plate Temperature Range (℃ ) | 300 |
| Solvent Temperature (Pt100 sensor)(℃ ) | 300 |
| Temperature Stability (Pt100sensor)(℃ ) | ±2 |
| Safety Temp. (℃ ) | 370 |
| Rotating Speed (rpm) | 150~1500 |
| Heating Capacity (W) | 1000 |
| Max. Capacity (L)H2O | 2 |
| Top Plate Material | Aluminum coated with ceramic |
| Timer（min） | — |
| Number of stirring positions | 4 |
| PID Parameters | 1 set of PID |
| Interface | RS232 |
| High-Temperature Protection △ T(℃ ) | — |
| Top Plate Dimensions（mm） | 320×320 |
| Dimensions (mm) | 380x320x70 |
| Order No. | 400315 |
specifications
| Model | WH620 |
| Display Mode | LED |
| Top Plate Temperature Range (℃ ) | 300 |
| Solvent Temperature (Pt100 sensor)(℃ ) | 300 |
| Temperature Stability (Pt100sensor)(℃ ) | ±2 |
| Safety Temp. (℃ ) | 370 |
| Rotating Speed (rpm) | 150~1500 |
| Heating Capacity (W) | 1000 |
| Max. Capacity (L)H2O | 2 |
| Top Plate Material | Aluminum coated with ceramic |
| Timer（min） | — |
| Number of stirring positions | 6 |
| PID Parameters | 1 set of PID |
| Interface | RS232 |
| High-Temperature Protection △ T(℃ ) | — |
| Top Plate Dimensions（mm） | 400×300 |
| Dimensions (mm) | 490x320x70 |
| Order No. | 400316 |
