Features: • Output current either 020mA or 420mA• 0/4mA and 20mA frequency values• Line fault detection: Off, wire-break and/or short circuit• Upper and lower threshold values of the set point relay (including hysteresis)• Start uptime delay 0 to 1000s• Filter t...
MTL5521: Features: • Output current either 020mA or 420mA• 0/4mA and 20mA frequency values• Line fault detection: Off, wire-break and/or short circuit• Upper and lower threshold value...
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The MTL5521 converts a frequency or rotational speed signal from a proximity detector located in the hazardous area into a 0/420mA current signal suitable for driving safe area loads. A display located on the top indicates the frequency.
The analogue output of MTL5521 provides either a 020mA or 420mA signal that is proportional to the rotational speed or frequency of the input. A relay output is provided by MTL5521, 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. A start-up delay is triggered by a NO contact allowing the system to start up without creating false alarms.