When stirring a solution, to work with a constant speed (Revolutions Per Minute) 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.
HI 304N-1 magnetic stirrer, stainless steel cover, 100/115 Vac, micro stir bar and instructions. HI 304N-2 magnetic stirrer, stainless steel cover, 100/115 Vac, micro stir bar and instructions.
Specifications:
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
230/240V, 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.)
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