HI304N-2, Auto-Reverse Magnetic Stirrer with Tachometer

When stirring a solution, to work with a constant speed is an important factor in ensuring that the best repeatability in tests and processes is achieved. Without a tachometer, there is no way of knowing the RPMs.

HI 304N is a heavy-duty stirrer with a built-in tachometer. It is often desirable to stir in two directions in order to achieve maximum homogeneity. An advanced circuit allows HI 304N to reverse the direction of the stir at a user selected interval. The interval can be adjusted from 30 seconds up to 3 minutes. In addition to precision speed control, a limiter will also assure that the maximum speed will never be exceeded (Speedsafe). Often, a sample is removed from the stirrer before the uses reduces the speed with ordinary stirrers. This can cause the motor to accelerate until it is destroyed. HANNA stirrers incorporate a VCO device that will stop the motor from accelerating as soon as the load is removed.

Maximum Stirring Capacity: 2.5 liters
Speed Range: Low 100 rpm
Speed Range: High 800 to 1000 rpm
Tachometer: 4-digit LCD
Reverse Interval: from 30 seconds to 3 minutes
Power Supply: 230/240 Vac, 50/60 Hz
Installation Category: II
Cover Material: AISI 316 Stainless Steel
Environment: 0 to 50 C (32 to 122 F); RH max 95%
Dimensions: 180 x 180 x 70 mm (7.1 x 7.1 x 2.8″)
Weight: 1.4 kg (3.1 lb.)