The Yokogawa DM1B-015G-1C2A1S1-Z-0808 is a highly configurable Multi-Function Signal Conditioner and Isolator from the Yokogawa µR Series <br />
This DIN-rail mounted unit is designed to receive a complex frequency input signal (from a device like a turbine flowmeter or tachometer), perform signal conditioning and isolation, and provide two independent analog outputs and one digital status output. The lengthy suffix code defines its precise configuration, making it a powerful and versatile interface device between specific field sensors and control systems.
Key Parameters:
| Category | Specification |
| :--- | :--- |
| Series | Yokogawa µR / UT Series (Advanced Signal Conditioner) |
| Function | Frequency-to-Current Converter / Isolator with Alarms |
| Input Signal | Frequency (from a proximity switch, flowmeter, etc.) |
| Input Range | Defined by 0808 code (e.g., a common range is 0 to 1000 Hz or similar). Must be confirmed with manual. |
| Output 1 Signal | Analog, 4 to 20 mA DC (isolated) |
| Output 2 Signal | Analog, 4 to 20 mA DC (isolated) |
| Status Output | 1 Solid-State (Transistor) Output (for alarm or status) |
| SS Output Rating | Typically 30V DC, 50 mA max. |
| Power Supply | 100 - 240V AC, 50/60 Hz (Standard range, indicated by -Z) |
| 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 a flow application:
Input: A turbine flow meter generates a frequency signal (e.g., 0-1000 Hz) proportional to flow rate.
Output 1: A 4-20 mA signal representing the instantaneous flow rate is sent to the control system for monitoring and control.
Output 2: A 4-20 mA signal representing the totalized flow (e.g., gallons or liters) is sent to a recorder or SCADA system.
Status Output: The transistor output activates an alarm if the flow rate exceeds a preset limit or if the input signal is lost.