Ai PID Digital Hot Plate Stirrers with Temperature Probe

A magnetic stirrer or magnetic mixer is a laboratory device that employs a rotating magnetic field to cause a stir bar (also called "flea") immersed in a liquid to spin very quickly, thus stirring it. The rotating field may be created either by a rotating magnet or a set of stationary electromagnets, placed beneath the vessel with the liquid. Since glass does not affect a magnetic field appreciably (it is transparent to magnetism), and most chemical reactions take place in glass vessels (i.e. see beaker (glassware) or laboratory flasks), magnetic stir bars work well in glass vessels. On the other hand, the limited size of the bar means that magnetic stirrers can only be used for relatively small (under 4 liters) experiments. They also have difficulty dealing with viscous liquids or thick suspensions. For larger volumes or more viscous liquids, some sort of mechanical stirring is typically needed.

Magnetic stirrers are often used in chemistry and biology. They are preferred over gear-driven motorized stirrers because they are quieter, more efficient, and have no moving external parts to break or wear out (other than the simple bar magnet itself). Because of its small size, a stirring bar is more easily cleaned and sterilized than other stirring devices. They do not require lubricants which could contaminate the reaction vessel and the product. They can be used inside hermetically closed vessels or systems, without the need for complicated rotary seals. Magnetic stirrers may also include a hot plate or some other means for heating the liquid.

Includes

• 1 x Ai digital heated magnetic stirrer
• 1 x External temperature probe
• 1 x Internal temperature plug
• 1 x Boss head clamp
• 1 x Stainless steel support rod (16 inches)
• 2 x PTFE coated stir bars
• 1 x 4 prong stainless steel clamp opens to 3 1/2"
• 1 x User Manual

Specfications

Model	HP5	HP7	HP9	HP11
Temperature Range	Ambient to 350°C
Heating Plate Diameter	5.5 in.	7 in.	9 in.	11 in.
Heating Plate Material	ceramic coated aluminum
Stirring Speed	110 to 2000 rpm
Stirring Motor Power	40 watts
Stirring Motor Type	brushless DC motor
Max. Stirring Volume (water as media)	0.8 gallon	1 gallon	1.5 gallons	2 gallons
Controller	PID control with digital temperature and rotation speed display
External Thermocouple	PT100 (temperature stability +/- 2%)
External Thermocouple Cable Length	35 in.
External Thermocouple Dimensions	280mm x 5mm
Unit Dimensions (WxDxH)	6.5 x 12 x 4.25 in.	7 x 12.5 x 4.5 in.	9 x 14.5 x 4.5 in.	11 x 16 x 4.75 in.
Shipping Dimensions (WxDxH)	16 x 9.5 x 7.5 in.	10 x 16 x 9 in.	16 x 20 x 9 in.	16 x 22 x 10 in.
Unit Weight	9 lbs	10 lbs	13 lbs	18 lbs
Shipping Weight	18 lbs	20 lbs	25 lbs	32 lbs
Safety	Thermocouple failure protection Built-in fuse protection
Certification	UL/CSA (optional); CE (standard)
Warranty	One Year