Description
* Advanced microprocessor controlling system guarantees the reliability and temperature stability
* Bright and clear LCD 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 _xed conditions
* Liquid drainage above the control board to prevent liquids from accessing the touching board and the electronics
* 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
* New enhanced infrared heating element, is a type of high temperature hot plate stirrer with very high heating density, can reach a high media temperature
* High safety protection: When exceeding the safety range of the hot top (50℃ more than the setting temperature) or solution (adjustable for WH240-R), the heating can be shut off immediately and automatically for the safety protection
 

Specifications

Model	WH240-R
Display Mode	LCD
Control	Digital set and control
Top Plate Temperature Range (℃ )	0~500（Continuous）
Solvent Temperature (Pt100 sensor)(℃ )	0~300
Temperature Stability (Pt100sensor)(℃ )	±2
Safety Temp. (℃ )	50~550 adjustable
Rotating Speed (rpm)	100~1200
Heating Capacity (W)	600
Max. Capacity (L) H2O	20
Top Plate Material	Ceramic glass
Top Plate Dimensions (mm)	Ø135
Dimensions (mm)	225x215xx115
High Temperature Protection( △ T)	25℃ ( Factory set value 25℃ ,10-50℃ adjustable)
Timer（min）	1 - 1999 / continuous
PID Parameters	2 set of PID
Communication	USB（COM）
Interface	USB
Order No.	400501

Protective Cover

Order No.	Description	Suitable for
400-001	Silicone material, top square opening	WH220-HT,WH240-HT,WH220-PLUS,WH240-PLUS
400-002	Silicone material, top round open	WH220-R, WH240-R

Wiggens is a manufacturer of high quality laboratory equipment based in Beijing, China. We started out as distributor for laboratory equipment and soon became an exclusive distributor for most reputable lab equipment manufacturers. After being established as a well-respected and highly successful distributor all around China, we made the successful transition from a mere distributor to producing high level laboratory equipment itself.

Since 2006 we produce top-quality laboratory equipment and, by making use of our well- established distribution network, we were able to quickly establish our products in the domestic market.

Our two brands Wiggens and ChemVak stand for high quality, long durability, and remarkable performance.

Wiggens is your general laboratory companion and provides products that can be used in all kinds of laboratory environments. The Wiggens product range entails different kinds of magnetic stirrers and hot plates. It even provides hot plates with integrated stirring functions for an even heat distribution among your solvents. In addition to the magnetic stirrers Wiggens also provides overhead stirrers with diverse characteristics to perfectly match the solvent used. In addition, Wiggens offers homogenizers of different magnitudes as well as a broad range of shakers, multi- purpose heaters and colony counters. As a new feature in the 2014 range Wiggens now also provides incubators and water baths for full temperature control.

ChemVak on the other hand has been created as a brand specialized in vacuum equipment. Different kinds of vacuum pumps, including chemical-resistant diaphragm pumps and oil-free piston pumps, are complemented by vacuum filtration equipment to form whole filtration systems for a wide range of different applications. In addition, Water-jet aspirator pumps and bio-suction systems are part of the product range. In 2014, a new line of gas generators became part of the ChemVak product line and round out the picture of ChemVak as a specialist for vacuum and gas related operations.