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UD1B-015N-1KC-2SA-2/CN

The Yokogawa UD1B-015N-1KC-2SA-2/CN is a highly advanced Signal Conditioner / Isolator from the UTAdvanced series, designed for DIN rail mounting. It is a sophisticated, software-configurable unit that provides powerful signal processing, isolation, and conversion capabilities in a single channel.

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Category Specification
Model Code UD1B-015N-1KC-2SA-2/CN
*Decoder: UD=Configurable Series, 1=Single channel, B=Option, 015N=4-20mA Input, 1KC=Function Code (Square Root), 2SA=Output Code (4-20mA + Alarm), 2=24V DC Power, /CN=China variant*
Series UTAdvanced (Software-Configurable Signal Conditioner)
Input
• Signal Type 4 to 20 mA DC (This is defined by 015N. The unit is capable of many inputs, but this is its pre-wired default).
• Input Impedance Approx. 25 Ω (for current input)
Output
• Signal Type 1 4 to 20 mA DC (Analog output)
• Signal Type 2 Relay Contact Alarm Output (2 points, as indicated by 2SA).
• Load Resistance 0 to 550 Ω (for analog output, at 24V DC supply)
Key Function
• Calculations Square Root Extraction & Linearization (indicated by 1KC). This is critical for converting the differential pressure signal from an orifice plate into a linear flow rate.
General Performance
• Isolation 3-way isolation between Input-Output-Power Supply.
• Accuracy ±0.1 % of span (typical for these units)
• Response Time Configurable, typically in the range of < 400 ms to several seconds.
• HART Communication Yes. This configurable series supports HART signal pass-through when equipped with the appropriate analog I/O modules.
Power Supply
• Rated Voltage 24 V DC (indicated by 2 in the code).
Physical
• Mounting Standard 35 mm DIN rail
• Module Dimensions 22.5 mm (W) x 100 mm (H) x 115 mm (D)
• Wiring Removable screw terminal blocks
Configuration
• Method Software-configurable via Yokogawa's dedicated PC tool (e.g., UTConfig). Settings are stored in non-volatile memory.
Environmental
• Operating Temperature -20 to +70 °C
• Storage Temperature -40 to +85 °C