Description
1. Product Title
Moore Industries MMII‑PD‑1‑2‑240‑ 2‑Wire Loop‑Powered Isolated Pulse‑to‑DC Converter
2. Product Overview
The MMII‑PD‑1‑2‑240 is a loop‑powered isolated pulse‑to‑DC signal converter manufactured by Moore Industries. This instrument converts frequency / pulse signals coming from flow meters, tachometers and pulse‑output sensors into standard 4‑20 mA analog output for DCS and PLC systems. MMII‑PD‑1‑2‑240 provides full galvanic isolation between pulse input and analog output loop to eliminate ground‑loop noise and transient interference. Powered entirely from the 4‑20 mA control loop, no separate auxiliary power supply is required. It features configurable input frequency range and scalable output, delivering stable proportional analog representation of pulse rate. This unit bridges pulse‑type field sensors with analog‑based automation systems, reduces signal distortion and ensures accurate flow, speed or total‑rate measurement in process environments.
3. Technical Specifications
- Brand: Moore Industries
- Model: MMII‑PD‑1‑2‑240
- Warranty: One Year
- Condition: 100% New & Original
- Input: Pulse / frequency input; 0‑240 Hz maximum input frequency
- Output: 4‑20 mA 2‑wire loop‑powered analog signal
- Isolation: Galvanic isolation between input and output circuits
- Power Source: Loop‑powered (derives power from 4‑20 mA loop, no external supply)
- Accuracy: ±0.1% of span typical
- Response: Configurable damping for smoothing fluctuating pulse‑rate signals
- Operating Temp: ‑40 °C to +85 °C
- Humidity: 5‑95 % RH non‑condensing
- Housing: Compact DIN‑rail mount plastic enclosure
- Mounting: Standard 35 mm DIN‑rail installation inside instrument cabinet
- Compliance: CE compliant for industrial process applications
5. Application Scenarios
- Chemical Process Plant: DIN‑rail mounted to convert pulse output from turbine flow meters into 4‑20 mA analog signals for DCS flow‑rate monitoring.
- Water Treatment Facility: Used for pulse‑type water‑flow sensors, translating pulse rate to standard analog for PLC‑based process control and totalization workflows.
- Factory Rotating‑Equipment Monitoring: Converts tachometer pulse signals to 4‑20 mA for speed indication, feeding machine‑speed data into distributed automation control systems.
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