Key Specifications Summary
Category Specification
Product Type Line-Powered Isolator with Math Function
Series Yokogawa UTAdvanced (UD1B)
Input Signal 1 channel, DC Voltage (User-configurable range, e.g., 0-5V, 0-10V)
Output Signal 1 1 channel, 4 to 20 mA DC (isolated, linear output)
Output Signal 2 1 channel, 4 to 20 mA DC (isolated, Math Channel output)
Math Functions User-configurable. Typically includes Square Root (for DP flow), High/Low Select, Absolute Value, Scaling, Sum/Difference.
Power Supply The housing unit requires an external 24 VDC power supply.
Isolation Input, Output 1, and Output 2 (Math) are all galvanically isolated from each other.
Configuration Input range, output scaling, and math function selection are set via internal DIP switches or software.
Installation DIN-rail mount. Must be installed in a UTAdvanced housing unit (e.g., UD1B-HC).
Typical Application Flow Measurement: Connecting a differential pressure (DP) transmitter. The input is the DP signal (0-5V). Output 1 provides the raw DP value (4-20mA), while the Math Channel (Output 2) is configured for Square Root extraction to provide a 4-20mA output directly proportional to flow rate.