Loop powered LCDs are cost effective but have the disadvantages of low luminance because of the limited power available from the loop. Consequently they are difficult to read under poor light conditions which can cause frequent reading errors.
The latest displays from Inor Process provide a solution to this problem. The new displays are equipped with bright luminous digits, which are easy to read even in the dark. Available for field or panel mounting, the displays can be used in dark or semi-dark areas where LCD indicators would be impossible to read. The power derived from a 4-20 mA loop is sufficient to achieve bright and easy to read displays.
Voltage drop is designed for some 5V so the LED-W11 and LED-P11 products can be connected to nearly any 2-wire transmitter with a normal output.