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Thermoelectric incubator temperature signal input channel principle, the circuit is mainly composed of three parts of temperature sensor, operational amplifier and analog / digital (A / I) converter. This scheme is simpler than the scheme using a temperature transmitter and has a small size and a low price. The temperature sensor adopts the integrated semi-conductive sensor LMI of the National Semiconductor Company and can also use domestically produced products of the same type. The integrated sensor is a new device, which is more sensitive, linear and easy to use than using a .PN junction sensor directly.
In the working process of the electrothermal thermostat incubator, if the laser power supply fails and does not work properly, it will immediately send out a signal to request an interruption, so that the computer will stop working and people will be interrupted. At the same time by corpse knife. Send an alarm signal to drive the buzzer to sound. At this time, the worker inquired about the laser power supply failure. After troubleshooting, the computer automatically resumes the site and continues to work. Otherwise, continue to interrupt the program to wait. The use of laser welding sealed relays, for the first time in the country, opens up a new way for the sealing technology of relays. Laser welding can be used not only in the process of sealing shells, but also in the welding of electronic devices. The use of a single board machine to control the laser package is easy to operate, and the quality can be fully guaranteed. The labor environment of the workers can also be greatly improved. The original soldering process was extremely cumbersome. Now laser welding simplifies the process, the substrate and the shell do not need to be rhodium-plated, and after cleaning, they can also enter the nitrogen filling process. This greatly reduces man-hours and precious metal silver consumption and reduces production costs.
Thermostatic incubator microcomputer control system
Electric constant temperature incubator for scientific research institutions and hospitals for bacterial culture, but also for God, drunk and other constant temperature test. Incubator heating power is 200~700W, volume 350 350 fire (ntm), power supply is AC 220V, temperature adjustment range is +3~+60°C, heating rate is O.soC/mi. Temperature control accuracy is ± 0.soC.