Application

• The 3118 is an isolating converter and splitter which can be used for signal conversion of standard bipolar analog process signals into two individual unipolar analog signals.
• The unit offers 4-port isolation and provides surge suppression and protects control systems from transients and noise.
• The 3118 also eliminates ground loops and can be used for measuring floating signals.
• Mounting of the 3118 can be in Safe area or in Zone 2 and Cl. 1 Div 2 area and is approved for marine applications.
• The analog output can be easily configured and programmed to be bipolar in the ranges ±10 mA and ±20 mA (*special setup).

Technical characteristics

• Flexible 24 VDC (±30%) supply via power rail or connectors.
• Excellent conversion accuracy, better than 0.05% of selected range.
• A green front LED indicates operation status for the device.
• All terminals are protected against overvoltage and polarity error.
• Meeting the NAMUR NE21 recommendations, the 3118 ensures top measurement performance in harsh EMC environments.
• High galvanic isolation of 2.5 kVAC.
• Fast input to output response time < 7 ms / > 100 Hz – 10 Hz bandwidth damping possible via DIP-switch.
• Excellent signal/noise ratio > 60 dB.

Mounting / installation / programming

• Easy configuration of factory calibrated measurement ranges via DIP-switches.
• A very low power consumption allows DIN rail mounting without the need for any air gap.
• Wide temperature operation range: -25...+70°C.