AVT1999 A + - 2-channel MIN-MAX thermometer with alarm. PCB and programmed layout

Description

The thermometer is used to monitor temperature in two points using temperature sensors type DS18B20 with a 1-Wire interface.

For each sensor, you can declare the normal temperature range, and if it is exceeded, the acoustic siren will inform you (the signal will sound at intervals as long as the temperature stays higher or lower than the set temperature) and an appropriate message on the display. The thermometer has a memory of the minimum and maximum value with the possibility of resetting it at any time. An additional functionality of the thermometer is the ability to assign an individual name for each of the two measuring points.

Project AVT 1999 EP 08/18

properties

• The temperature range of the sensor is -55 ° C to + 125 ° C
• Measurement accuracy: ± 0.5 ° C (from -10 ° C to + 85 ° C), ± 2 ° C (from -55 ° C to + 125 ° C)
• Reading resolution: 0.1 ° C in the entire measuring range

Included

• PCB board and programmed layout