Equus 4320 Manual Pdf May 2026
Operation and Application of the Equus 4320 Digital Battery and System Tester: A Technical Overview
If you want, I can draft a specific one-page manual or a structured table of contents and sample procedures (e.g., step-by-step for measuring RPM).
Equus 4320 is a 3½-digit, 10 MegOhm digital multimeter specifically designed for automotive use
. The official manual provides detailed guidance on its safety protocols, technical specifications, and testing procedures for components like batteries, diodes, and current. Core Specifications & Features
The device is built for durability and precision in automotive environments, featuring: : A 3½-digit LCD with a maximum reading of 2,000. Input Impedance equus 4320 manual pdf
: 10 MegOhm resistance to prevent damage to sensitive automotive computers. Safety Standards
: CE EMC/LVD compliant, rated for Pollution Degree 2 and Overvoltage Category II. Measurement Ranges : AC/DC up to 600V.
: AC/DC up to 200mA (fused); DC up to 10A (unfused, 10-second limit). Resistance : 0 to 20M Key Testing Procedures Equus 4320 Multimeter User Manual outlines specific steps for common automotive tasks: Battery Testing
: Includes a dedicated function for 1.5V, 6V, 9V, and 12V batteries. It uses three LEDs (Green for Good, Yellow for Low, Red for Bad) to indicate the state of charge. Diode & Continuity Operation and Application of the Equus 4320 Digital
: Used to test semiconductors and circuit paths. The continuity beeper sounds if resistance is less than 120 ohms. Current Measurement (10A) : To measure high DC current, use the "DC10A" jack.
This range is unfused; do not exceed 10 seconds per reading and allow 15 minutes between tests to prevent heat damage. Safety & Maintenance Circuit Protection
: The 200mA range is protected by a 0.315A/250V fuse. If the unit fails to measure current in this range, check the fuse behind the rear panel. Vehicle Safety
: Always work in a well-ventilated area, wear eye protection, and ensure the transmission is in "Park" or "Neutral" with the parking brake set. Calibration You might be tempted to "figure it out as you go
: No periodic maintenance is required other than battery/fuse replacement and keeping the unit dry using a damp cloth.
You might be tempted to "figure it out as you go." After all, the Equus 4320 interface is relatively straightforward. However, skipping the manual leaves you vulnerable to three critical mistakes:
Simply put, the PDF is your cheat sheet for turning a brick-shaped scanner into a powerful mechanic's assistant.
Most automotive applications use DC Voltage.