PGA Championship 2017: Jason Day's no-good, very wild adventure at the 18th hole. 1  Matt Every shoots 61, leads Henrik Stenson by one shot at Wyndham Championship. 2  Heavily-favored U.S. staying humble, focused ahead of Solheim Cup.
The temperature transmitter converts the signal into a current 4-20mA and sends it back to a controller. The controller can then manipulate some outputs based upon the temperature input. The temperature indicator is a readout of the temperature and it can be in a number of places in the system. An output of the controller, connected to the transmitter or as a part of the transmitter. Hope this helps... Source(s): godzyx Â· 9 years ago.
On/Off. An on-off controller is the simplest form of temperature. control device. The output from the device is either on or. off, with no middle state. An on-off controller will switch the. output only when the temperature crosses the setpoint. For heating control, the output is on when the temperature. is below the setpoint, and off above setpoint. Since the temperature crosses the setpoint to change the. output state, the process temperature will be cycling.