In the process of circuit signal transmission, the voltage signal weakens over distance, while current transmission helps maintain signal integrity. This module converts current signals to voltage signals for microcontroller detection. It supports current input ranges of 4-20mA and 0-20mA, with voltage outputs of 0-3.3V, 0-5V, and 0-10V. Features: - Wide supply voltage range with support for multiple output voltage ranges - Adjustable zero and span settings - High stability and good linearity, suitable for industrial applications - High-precision current sensing using precision color-coded resistors with low temperature drift and high power rating Instructions for use: 1. Connect the module according to pin definitions. Power supply voltage range is 7–36V. For 10V output, supply voltage must exceed 12V. 2. After powering on, the D2 indicator should light up. If not, check wiring connections. The board includes reverse polarity protection. 3. When current input is at minimum (0mA or 4mA), adjust the ZERO potentiometer to set VOUT to the desired minimum (0.0V or other required voltage). 4. When current input is at maximum (20mA), adjust the SPAN potentiometer to set VOUT to the desired maximum (3.3V, 5V, or 10V). Output can be as low as 2.5V when input is 4-20mA. Jumper settings for range selection: 4–20mA: - 0–2.5V: Short pins 1–2 and 3–4 on J1 - 0–3.3V: Leave pins 1–2 and 3–4 open - 0–5.0V: Short pins 1–2 and 3–4 on J1 - 0–10.0V: Short pins 1–2, leave pins 3–4 open on J1 0–20mA: - 0–3.3V: Short pins 1–2 and 3–4 on J1 - 0–5.0V: Short pins 1–2 and 3–4 on J1 - 0–10.0V: Short pins 1–2, leave pins 3–4 open on J1 Size: 4.2 x 2.5 cm (1.65 x 0.98 inches) Quantity: 1 piece Note: - Allow 1–3mm error due to manual measurement. Please confirm tolerance before purchase. - Due to monitor differences, actual product color may vary from images. Package Contents: 1 x Current to Voltage Conversion Module