4 ~ 20mA transmitter circuit diagram TMP35 temperature

Posted on Nov 10, 2015

4 ~ 20mA constituted by a TMP35 temperature transmitter circuit as shown in FIG. This circuit can be a voltage signal TMP35 output is converted into a standard 4 ~ 20mA current

4 ~ 20mA transmitter circuit diagram TMP35 temperature
Click here to download the full size of the above Circuit.

signal, for the use of automated instrumentation, industrial temperature control. Here is 4mA as zero-scale value, 20mA full-scale value. REF193 is 3V reference voltage source, OP193 operational amplifier. RP1, RP2, respectively, and full scale calibration potentiometer zero, both can be adjusted independently of each other. VD1 Schottky diode, which prevents OP193 open loop voltage increases. Preferably the power supply voltage + 9 ~ + 18V. Transmitter output current expression is:

Leave Comment

characters left:

New Circuits



Popular Circuits

LCD Display printer cable with HD44780
Electrometer amplifier with overload protection
Automatic telephone recording circuit
Keypad Talking To LCD Via AT89S51
3V to 9V DC Converters
MC81 holiday lights ASIC