A constant temperature shaker is a laboratory equipment that integrates constant temperature control and oscillation functions, widely used in fields such as biology, medicine, environmental protection, and chemical engineering. Its core function is to regulate temperature through a thermal cycling system (gas bath, water bath, oil bath), combined with swirling, reciprocating, or dual function oscillation modes, to provide stable environmental conditions for cell culture, microbial fermentation, enzyme reactions, and other experiments.
The constant temperature shaker is mainly used in scientific research and educational settings in fields such as biology and environmental protection, such as cell culture, microbial fermentation, enzyme reactions, genetic engineering, and other experiments.
working principle
Temperature control: The temperature sensor collects real-time temperature inside the box and transmits the signal to the PID controller; The controller compares the "set temperature" with the "actual temperature" and automatically starts and stops the heating tube (heating up) or refrigeration compressor (cooling down) to maintain temperature stability.
Vibration control: The motor drives the tray to perform periodic motion through an eccentric wheel, and the oscillation frequency is adjusted by a frequency converter (the variable frequency motor can achieve stepless speed regulation to avoid starting shock); The tray fixture fixes the container to ensure that the sample does not tip over and is mixed evenly during oscillation.
2、 Main classification of constant temperature shaker (distinguished by core functions)
Main functions
Temperature control: Accurate temperature control is achieved through a thermal cycling system, supporting various heating methods such as gas bath (up to 70 ℃), water bath (100 ℃), oil bath, etc.
Oscillation mode: Provides rotary, reciprocating, and dual function oscillation modes, with a frequency range covering 30-400rpm.
Application scenarios: Widely used in bacterial culture, fermentation, enzyme reactions, cell tissue research, water quality determination, plant cultivation, and breeding experiments.
Suggest developing a "quarterly maintenance+annual calibration" plan, with the following specific contents:
1. Quarterly maintenance (users can operate on their own)
Cleaning: Use a soft cloth dipped in water or neutral cleaner to wipe the outside of the box, and use 75% alcohol to wipe the inside and tray (avoid using strong acid or alkali cleaners to prevent corrosion); Clean the heat dissipation holes and fan dust (can be blown off with the cold air mode of a hair dryer).
Lubrication: Add lubricating oil to the bearings of the oscillating motor every 3 months (choose the model according to the instruction manual to avoid excessive oil spillage); Check the eccentric wheel connection and apply a small amount of lubricating grease to reduce wear.
Line inspection: After power failure, check whether the power cord and motor wiring are damaged or loose, and tighten or replace them in a timely manner (power-off operation is required to avoid electric shock).