The Yokogawa DM1B-015G-1C2A2S2-003-0202 is a highly configurable Multi-Function Signal Conditioner and Isolator from the Yokogawa µR Series (often marked as UT or UT55).<br />
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This DIN-rail mounted unit is designed for complex signal processing applications. It is specifically configured to accept a frequency input signal (from a device like a turbine flowmeter or digital tachometer), perform signal conditioning and isolation, and provide two different types of analog outputs and two digital status outputs. The lengthy suffix code defines its precise input range and output scaling.
Key Parameters :
| Category | Specification |
| :--- | :--- |
| Series | Yokogawa µR / UT Series (Advanced Signal Conditioner) |
| Function | Frequency-to-Current/Voltage Converter with Dual Digital Outputs |
| Input Signal | Frequency (Range: 0 to 1000 Hz, as set by 003 code) |
| Output 1 Signal | Analog, 4 to 20 mA DC (isolated) |
| Output 2 Signal | Analog, 0 to 10 V DC (isolated, as indicated by 2A) |
| Status Output | 2 Solid-State (Transistor) Outputs (for alarm or status) |
| SS Output Rating | Typically 30V DC, 50 mA max. |
| Power Supply | 100 - 240V AC, 50/60 Hz (Standard for this series) |
| Isolation | Input-to-Output1-to-Output2-to-Power: Fully isolated. |
| Accuracy | Typically ±0.1% of set span. |
| Operating Temperature | -5 to +55°C (23 to 131°F) |
| Mounting | Standard DIN rail (35mm) |
| Configuration | Configured via DIP switches and potentiometers on the front face. |
| Status Indicators | LEDs for power and status output. |
Typical Application
This module is perfectly suited for flow measurement with multiple output types:
Input: A turbine flow meter generates a frequency signal (0-1000 Hz) proportional to flow rate.
Processing: The conditioner isolates the frequency signal and converts it into two analog outputs.
Output 1: A 4-20 mA signal representing the flow rate is sent to a PLC or DCS for control.
Output 2: A 0-10 V signal representing the same flow rate is sent to a local display or chart recorder.
Status Outputs: The two transistor outputs activate alarms for high/low flow limits or fault conditions.