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UR1BG3-030N-1KC-2SA-N/CN

The Yokogawa UR1BG3-030N-1KC-2SA-N/CN is a highly advanced Single-Input Intelligent Signal Conditioner from the Yokogawa UTAdvanced series.
This "smart" DIN-rail mounted unit is designed for critical process applications. It provides high-performance electrical isolation, signal conversion, linearization, and alarm functionality for a single field instrument signal. The complex suffix code defines its precise configuration: it is set up to accept a 4-20 mA analog input signal, and produce an isolated 4-20 mA analog output while also providing two independent SPDT alarm relays. The -N indicates a standard 100-240V AC power supply, and the /CN suffix designates this unit for the People's Republic of China market.

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Parameters
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Key Parameters:
| Category | Specification |
| ：--- | :--- |
| Series | Yokogawa UTAdvanced (UTA) |
| Function | Isolator with Dual Alarms |
| Input Signal | 4 to 20 mA DC (Analog Current) |
| Output Signal | Analog, 4 to 20 mA DC (isolated) |
| Number of Alarms | 2 independent alarms |
| Alarm Type | SPDT Relay (Form C) contacts |
| Relay Rating | Typically 250V AC, 2A (resistive load) |
| Power Supply | 100 - 240V AC, 50/60 Hz |
| Isolation | Input-to-Output-to-Power-to-Relays: 1500 V AC (Full isolation) |
| Accuracy | Typically ±0.1% of span (high accuracy) |
| Configuration | Configurable via front-face buttons and LCD display. Settings include input/output ranges, alarm setpoints (HI, HI-HI, LO, LO-LO, etc.), hysteresis, and damping. |
| Operating Temperature | -20 to +70°C (-4 to +158°F) |
| Mounting | Standard DIN rail (35mm) |
| Status Indicators | LCD display for values and status; LEDs for power, alarm status, and communication. |
| Destination | China Market (/CN) |

Typical Application
This module is ideal for monitoring a critical process variable and providing both an isolated control signal and safety interlocks:

Input: A 4-20 mA signal from a pressure transmitter monitoring vessel pressure.

Processing: The conditioner isolates the signal and displays the real-time pressure value.

Output: A clean, isolated 4-20 mA output is sent to the DCS or PLC for control.

Alarm 1: The first relay is set to trigger a HI alarm (e.g., at 90% of range) to alert operators.

Alarm 2: The second relay is set to trigger a HI-HI alarm (e.g., at 95% of range) to initiate an emergency shutdown sequence.