Autonics corporation offers pid auto turning temperature controller, tzn4 series. It provides dual pid auto tuning function. It has main output from relay with current of 4-20 ma, ssr. Auxiliary output is alarm, pv transmission [dc 4-20 ma], rs-485. Input sensor can be thermocouple, rtd [pt100o], analog [0-10v dc, 1-5 v dc, 4-20ma dc]. It has high accuracy of ±3% and 3°c. Display unit is in °c and in °f. Tzn4s and tzn4m conforms ip65 for front panel.
