Home Products เครื่องกวนสารละลาย HI 304N Auto-Reverse Magnetic Stirrer with Tachometer

เครื่องกวนสารละลาย HI 304N Auto-Reverse Magnetic Stirrer with Tachometer


HI 304N

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.

Order Information:
The HI 304N magnetic stirrer, stainless steel cover, micro stir bar and instructions.



Maximum Stirring Capacity2.5 liters
Speed RangeLow100 rpm
Speed RangeHigh800 to 1000 rpm
Tachometer4-digit LCD
Reverse Intervalfrom 30 seconds to 3 minutes
Power Supply110/115 Vac or 230/240 Vac, 50/60 Hz
Installation CategoryII
Cover MaterialAISI 316 Stainless Steel
Environment0 to 50°C (32 to 122°F); RH max 95%
Dimensions180 x 180 x 70 mm (7.1 x 7.1 x 2.8″)
Weight1.4 kg (3.1 lb.)



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