857-401

The 857-401 is a 3-way Isolation Amplifier configurable with digital output used to convert, amplify, filter and electrically isolate analog standard signals. The device has an 3-way isolation with a 2.5kV test voltage. DIP switches accessible from the side can be used to configure the signals in both input and output. In addition to standard signals, bipolar (±10V, ±20mA) and 0 to 30V signals can also be set on the input side. The analog output supports standard unipolar signals. In addition, the devices can be configured using FDT/DTM software. The software offers additional setting options such as special input and output signal combinations with intermediate values or inversion of the analog output. Measurement range switching is calibrated. A digital switching output is available that can also be configured using software. The device is supplied with 24VDC, which can be communed using lateral push-in type jumper bars in a quick and cost effective way.

• PC configuration interface
• Digital switching output
• Calibrated scale switching
• Analog, unipolar and bipolar, standard signals at input
• Clipping capability allows analog standard signal limitation to upper range values
• Safe 3-way isolation with 2.5kV test voltage to EN 61140

Applications

Automation & Process Control