Ideally when performing electrochemistry measurements, the sample being tested should be stirred. The use of a magnetic stirrer allows for proper mixing, ensuring that the sample is homogenous in consistency and temperature. The stirring of the sample also helps speed up the response time for a sensor to achieve a stable reading.
Compact & Cost-Effective
The HI310N magnetic stirrer is compact and lightweight, allowing for easy handling in the laboratory environment. Limited area on laboratory benchtops is no longer a concern with this durable, space-saving stirrer. Power-indicating LED lights also assure users at a distance that the stirrer is in operation. The durable plastic covering will resist harmful effects of accidentally spilled chemicals. The HI310N magnetic mini-stirrer is cost-effective for the customer that does not need the added expense of a heating element. The advanced design incorporates electronic controls that allow the user to easily regulate the speed with great precision.
Stainless Steel Cover
HI310N stirrer comes supplied with an AISI 316 stainless steel cover atop the ABS body. The cover is an ideal solution for applications in which exothermic reactions occur. The AISI 316 type of steel is known to have increased resistance to chloride corrosion as well.
Often in the lab a sample is removed from a stirrer before the speed is adequately reduced. Normally this would cause the internal motor to accelerate until it is damaged. To control the speed from changes in viscosity or removing of the load the HI310N magnetic mini-stirrer incorporates the Speedsafe™ mechanism. With Speedsafe, a speed sensing device (opto-sensor) is coupled with an FVC (frequency voltage converter) to monitor the stirring speed. As the speed reaches a preset maximum level, the speed limiter shuts down the VCO (voltage-controlled oscillator) to slow down the motor speed. This ensures that when the load is suddenly removed from the stirrer, the motor will not accelerate to such a high speed that will be hazardous to both the user and the stirrer; a feature not commonly found in conventional stirrers.
For safety, in the event of a short circuit, the HI310N is equipped with a replaceable fuse. The circuitry of the HI310N is grounded to the case for additional protection
For Non-newtonian fluids like oil and clay, the viscosity changes during the stirring process, making it necessary to adjust the power to maintain a constant speed during the stirring. Hanna Auto-Speed stirrers are designed with automatic feedback control to maintain constant speed when the torque load changes and are therefore ideal for stirring non-Newtonian fluids where the viscosity changes during stirring. They are also ideal for mixing applications where one solution is added to another which changes the capacity and thereby the torque load on the stirrer. The Auto-Speed stirrers maintain a constant stirring speed during the mixing up to the full capacity of 5 liters. They can also be used with Newtonian fluids up to a capacity of 5 liters.