Description

The ST20 series field displays are 4 to 20mA current loop displays that provide a superimposed HART® communication between the transmitter and the control room. Therefore, the display range and units are automatically selected according to the Settings of the connected HART® transmitter. Commonly used temperature units are stored before leaving the factory. The attached "User unit" can be written as required. The field display can display range alarms as well as MIN and MAX. The fault current signal of the transmitter can also be detected and displayed. The display can be connected to any 4 to 20mA transmitter. The display is directly powered by a 4-20mA loop, so the resulting pressure drop does not exceed 3V, and the display can be mounted directly on the wall, as well as a mounting bracket with a diameter of 1 to 2 tubes. The ST20 base module can also be mounted separately into another housing. The display consists of a built-in display module with a cast aluminum or stainless steel housing.