The electric thermostatic incubator is a piece of laboratory equipment that uses electric heating to maintain a constant temperature environment within the chamber; it typically consists of a chamber, a heating system, a temperature control system, a convection fan, and a control system.

Common simple faults and troubleshooting methods for constant-temperature incubators:

1. No response after powering on

Step 1: Check the power connection

* Check if the power cord is properly connected and ensure good contact between the plug and the socket.

* Check the power distribution box for output to rule out external power outages or tripped circuit breakers.

Step 2: Check the fuse

* Check if the fuse has blown.

* If there is only slight blackening, simply replace the fuse with one of the same specifications.

* If there is severe blackening, it is usually caused by a burnt-out convection fan; the fan must be replaced before replacing the fuse.

2. Failure to heat

Step 1: Check the heating element

* Use a multimeter (set to the 10-ohm range) to measure the resistance of the heating element.

* The normal value is between approximately 50 and 200 ohms.

* If the measured resistance is abnormal (e.g., infinite or near zero), the heating element needs to be replaced.

Step 2: Check the convection fan

* Confirm that the fan is operating normally.

* Fan failure prevents heat from being distributed evenly, affecting heating performance.

Step 3: Check the temperature controller

* Confirm that the temperature controller is functioning correctly.

* Check if the set temperature is correct and if the output signal is normal.

The Professional Competence Behind the Lab, The Trusted Lab Instrument Partner for 120 Countries

NANBEI INSTRUMENT serves over one million customers worldwide, spanning university laboratories, corporate R&D centers, research institutes, quality inspection and commodity inspection agencies, industrial and agricultural sectors.