Pepperl+Fuchs KFA6-SR2-EX2.W 103374 proximity sensor or switch controls

Pepperl+Fuchs KFA6-SR2-EX2.W proximity sensor or switch controls

This isolated barrier is used for intrinsic safety applications. It transfers digital signals (NAMUR sensors/mechanical contacts) from a hazardous area to a safe arThe proximity sensor or switch controls a form C changeover relay contact for the safe area load. The barrier output changes state when the inpUTsignal changes state. The normal output state can be reversed using switch S1. Switch S3 is used to enable or disable line fault detection of the field circuit. During an error condition, relays revert to their de-energized state and LEDs indicate the fault according to NAMUR NE44.

Pepperl+Fuchs Process Automation KFA6-SR2-EX1.W Isolator, Digital, K-System, Switch Amplifier, 1 Channel, 230VAC, 103374

Conductivity switch amplifier KFA6-ER-Ex1.W.LB

1-channel isolated barrier

230 V AC supply

Level sensing input

Adjustable range 1 k and 150 k

Relay contact output

Fault Relay Contact Output

Adjustable time delay up to 10 s

Minimum/Maximum Control

Line fault detection

Function of KFA6-ER-Ex1.W.LB

This isolated barrier is used for intrinsic safety applications. The device generates the AC measuring voltage to the conductive probe. As soon as the affected Medium to be monitored by the electrodes, the change-over relay contact of the device. The device is voltage and temperature to stabilize and ensures a defined switching behavior.

The device can be used as on/off control or as a Minimum/ Maximum control. A signal delay can be set in the range between 0.5 s and 10 s. The device is equipped with a line break monitoring (electricity free Relay in case of error). The line break is indicated by a red LED. By using the line break monitoring the output is used as an error signal output. When disabled, the LB-Monitoring output II follows the output I.