The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
www.DataSheet4U.com
Hazardous area
Safe area
MTL5521 FREQUENCY TO CURRENT CONVERTER AND TRIP AMPLIFIER
NAMUR Sensor
The MTL5521 converts a frequency or rotational speed signal from a proximity detector located in the hazardous area into a 0/4–20mA current signal suitable for driving safe area loads. A display located on the top indicates the frequency. The analogue output provides either a 0–20mA or 4–20mA signal that is proportional to the rotational speed or frequency of the input. A relay output is provided, with two configurable set points, allowing monitoring of the input frequency. When the input frequency is within this window the relay is energised and a yellow LED is illuminated.