Amelec’s Arithmetic Series (ADC/ADP/AGS) are advanced signal conditioning modules designed to perform mathematical operations on process signals—including summation, averaging, deviation, subtraction, multiplication/division, high/low selection, or square-root linearization. Some units also provide loop-power supplies and AC current/voltage transduction.
These units transform multiple sensor inputs into meaningful calculated outputs for control systems, alarms, or data logging—especially crucial in complex industrial scenarios.
Why Amelec Arithmetic / Special Units Excel
Flexible Signal Math Functions
Whether your project requires averaging multiple flow sensors, calculating difference between levels, or scaling and biasing analog inputs, Amelec arithmetic units provide dedicated hardware solutions—no software, no microprocessor latency. Amelec Instruments
Integrated Loop Power Supplies
Models like ADP901‑1 (single-output) and ADP901‑2 (dual-output) act as loop-powered power supply units, delivering 24 V DC at up to 30 mA—ideal for powering transmitters or low-power sensors. Amelec Instruments
AC Transduction Options
The ADP451 and ADP452 series convert AC current or voltage inputs into isolated 4‑20 mA signals. These are available with self‑powered or externally‑powered variants, along with mean/RMS detection and optional LCD display. Amelec Instruments+1Approved Business+1
Configurability & Output Options
Units like ADC311 (scale/bias/invert), ADC312 (square root), ADC313 (high/low selection), ADC315 (multiply/divide), ADC316 (high/low limit), ADC353 (linear integrator)—all offer flexible programmable functionality to suit bespoke signal logic needs. Amelec Instruments
Robust, Non-Processor Design
These hardware-based units avoid software vulnerabilities and ensure consistent performance over time. Many models offer optional RFI protection, LCD displays, and robust enclosures for industrial use. Amelec Instruments
Key Models & Applications
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ADC311 – Scale, bias, or invert input signals for custom output calibration.
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ADC312 – Built-in square-root linearization for flow calculations or differential pressure.
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ADC313 – High/low comparator selection: outputs the higher or lower of two inputs.
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ADC315 – Multiplies or divides two signals—useful for ratio control or efficiency calculations.
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ADC316 – Implements upper and lower limit logic for alarm or trip thresholds.
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ADC353 – Linear integrator: turns instantaneous rates into totalised sums.
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ADP901‑1 / ADP901‑2 – Provide loop power supplies for field instruments or sensors.
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ADP451 / ADP452 – AC voltage or current transducers with isolated 4‑20 mA outputs.
Highlights
| Capability | Industrial Benefit |
|---|---|
| Signal summation, division, etc. | Built-in math reduces PLC load and wiring complexity |
| Loop power options | Power remote sensors or transmitters directly |
| AC-to-4‑20 mA conversion | Converts mains or motor current to isolated process loop |
| No software/microprocessor | Higher reliability and long-term stability |
| Optional RFI/display/ | Enhanced usability in harsh or regulated environments |
| Compact DIN‑rail design | Easy installation and panel integration |
Summary
Amelec’s Arithmetic & Special Units offer dependable hardware-based signal maths—for adding, averaging, multiplying, limiting or integrating process inputs—without relying on PLCs or software. With options like ADC312 square-root, ADC315 multiply/divide, or integrated ADP loop-power supply units, these modules are perfect for applications requiring simplified logic, signal calculation or AC transduction.
Whether it’s sensor loop-power, signal ratio control, alarm limit logic, or flow integration, Amelec provides flexible, non‑processor solutions that boost reliability and streamline control architectures. Available in compact DIN‑rail packages and backed by industrial robustness.
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