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Edition • 2023-07-21T16:21:15+02:00 Hans Turck GmbH & Co.KG ñ D-45472 Mülheim an der Ruhr ñ Witzlebenstraße 7 ñ Tel. 0208 4952-0 ñ Fax 0208 4952-264 ñ more@turck.com ñ www.turck.com1 / 2 excom I/O System Output Module, Analog, 4-channel AO401EX The output module AO401Ex is used for the connection of intrinsically safe analog actua- tors such as control valves or process indica- tors. The module features protection class Ex ib IIC and can be mounted in zone 1 in combination with the excom system. The explosion protec- tion category of the outputs is Ex ia IIC resp. Ex iaD. The outputs are galvanically isolated from each other. HART-compatible transducers can be con- nected to the module. The field device can thus be parametrized directly at the terminals on the DIN rail with a licensed modem. Addi- tional impedance in the circuit is not neces- sary. The host system transmits a digitized con- trol value 0...21000 (independent of the parametrized measuring range). This raw val- ue is then transformed by the AO401Ex into a signal between 0...21 mA. ■ Output module for the connection of ana- log actuators ■ Complete galvanic isolation
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