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.
The temperature gauge (or cold and hot indicator lights) typically measure the temperature of the engine coolant itself. When the car is first started, the engine is cold, and oil will need time to heat up and achieve good flow for lubrication. Until that temperature is reached, the engine is more susceptible to damage at high revs or under load. Guidance is to drive relatively gently until the low temp light goes out. In a highly tuned car, with tighter tolerances, this is even more important. So treat it as a gentle warning.