EMERSON SLS 1508 Industrial Signal Converter
1. Product Description
EMERSON SLS 1508 is an industrial-grade signal converter from Emerson, designed to convert and isolate electrical signals in industrial systems. It’s ideal for use in factory automation, process control (e.g., chemical/pharmaceutical plants), and sensor networks—scenarios where different devices (like sensors and PLCs) use incompatible signal types, or where electrical noise needs to be blocked to ensure accurate data transmission.
What makes it practical:
- Signal Conversion & Isolation: Converts common industrial signals (e.g., 4-20mA analog signals to 0-10V) and isolates the input/output circuits. This fixes signal mismatch between devices and blocks electrical noise that could distort data.
- Easy to Use: Has clear DIP switches or knobs to set signal types (no complex programming needed) and LED indicators to show working status (e.g., power on, signal active).
- Durable for Harsh Environments: Built with a rugged plastic housing that resists dust, moisture, and vibration. It works reliably in factory floors or outdoor control cabinets with wide temperature changes.
It’s perfect for connecting 4-20mA pressure sensors to 0-10V PLCs, or isolating signals in noisy areas (near large motors) to keep data accurate.
2. Key Technical Specifications
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Parameter Category
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Specific Details
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Signal Conversion Range
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Input: 4-20mA DC; Output: 0-10V DC (adjustable)
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Isolation Voltage
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2.5kV AC (between input/output/power)
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Accuracy
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±0.1% of full scale
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Power Supply
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24V DC (18V-30V DC wide range)
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Operating Temperature
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-20°C to +70°C
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Mounting
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DIN rail (35mm standard)
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Size (W×H×D)
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18mm×90mm×65mm
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Certifications
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IEC 61010-1, CE, UL 508
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3. System Integration
The SLS 1508 acts as a “signal bridge” in industrial systems:
- Signal Matching: Connects devices with different signal types—e.g., a 4-20mA flow sensor to a 0-10V HMI (human-machine interface). It converts the sensor’s signal so the HMI can read and display flow data correctly.
- Noise Isolation: Blocks electrical noise from sources like large motors or power cables. This ensures sensors (e.g., temperature sensors) send accurate data to PLCs, avoiding wrong control decisions (e.g., incorrect heating/cooling).
- Simple Wiring: Uses standard industrial wire (0.5-1.5mm²) for input, output, and power. It can be added to existing control panels in minutes without rewiring the entire system.
- Status Monitoring: LEDs show if power is on (green) or if there’s a signal error (red), making it easy to troubleshoot issues (e.g., no signal = check sensor wiring).
4. Related Models in the Same Series
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Model
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Key Differences & Uses
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EMERSON SLS 1509
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Input: 0-10V DC; Output: 4-20mA DC – for reversing signal types (e.g., 0-10V valves to 4-20mA PLCs).
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EMERSON SLS 1510
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Dual-input (4-20mA + 0-10V); Single-output – for systems needing to switch between two signal sources (e.g., backup sensors).
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EMERSON SLS 1511
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Higher isolation voltage (5kV AC) – for high-voltage industrial areas (e.g., power generation plants) needing stronger noise protection.
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EMERSON SLS 1512
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Wide temperature range (-40°C to +85°C) – for cold storage facilities or high-heat process areas (e.g., steel mills).
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EMERSON SLS 1513
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RS485 digital output (instead of analog) – for connecting analog sensors to digital control systems (e.g., IoT platforms).
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EMERSON SLS 1514
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Compact size (12mm width) – fits in tight control panels with limited DIN rail space (e.g., small portable test kits).
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EMERSON SLS 1515
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Dual-output (4-20mA + 0-10V) – for sending one sensor’s signal to two devices (e.g., a PLC and an HMI) at the same time.
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