The Wincom Ammeter J0407 is a classic, high-reliability analog moving-coil meter specifically designed to measure direct current (DC) in electrical circuits. Featuring a robust desktop casing, dual-scale tracking, and color-coded safety terminals, this instrument is engineered for durability and error-free operation. It is an indispensable teaching and testing apparatus widely specified for physics labs, school science classrooms, electronics training institutes, and general circuit experiment setups.

Technical Specifications

• Model Number: J0407

• Meter Type: Analog Moving-Coil DC Ammeter

• Measurement Range Options: Dual range configuration (typically 0 to 0.6 Amperes and 0 to 3.0 Amperes)

• Accuracy Class: Grade 2.5 precision calibration

• Damping Time: Less than 4 seconds for immediate needle stability

• Terminal Type: 4mm color-coded binding posts (Red for Positive, Black for Negative)

• Shell Material: High-impact, scratch-resistant ABS industrial polymer outer chassis

• Scale Display: Slanted, clear-view dashboard with a high-contrast black pointer needle and built-in anti-parallax mirror strip

• Zero Adjustment: External manual zero-setting screw on the front panel

Key Features

• Battery-Free Analog Reliability: Operates entirely on the electromagnetic forces of the current being measured, eliminating the need for internal batteries, charging cords, or external power sources.

• Dual-Scale Precision Mode: Equipped with two distinct measurement tiers (0.6A for low-current fine monitoring and 3A for higher load testing), allowing students to select the safest sensitivity for their circuits.

• Anti-Parallax Mirror Strip: Designed with a specialized reflective mirror band beneath the scale markings, enabling students and technicians to line up the needle with its reflection for completely accurate, error-free readings.

• Robust Safety Binding Posts: Features heavy-duty, color-coded terminal knobs that accept standard banana plugs, bare copper wires, or alligator clips while providing solid insulation.

• External Front Calibration Zero: Features an easy-to-reach manual zero-adjusting screw right below the dial window, allowing quick baseline alignment before starting any laboratory experiment.

Primary Applications

• School and College Physics Labs: Teaching students fundamental concepts of Ohm’s law, series and parallel circuit behaviors, and manual current determination techniques.

• Electronics Training & Vocational Institutes: Training apprentice technicians on analog system monitoring, circuit building, and diagnosing resistance drops.

• General Science Experiment Kits: Serving as a highly visible, damage-resistant current gauge for simple breadboard layouts, battery testing rigs, and small motor assemblies.

• Product Testing and Calibration Benches: Spot-checking current consumption trends in low-voltage DC hardware and consumer electronics.