The Perception - 2 Channel Lab Scope - OTC Tools and Equipment

The OTC Perception Model 3820 is a professional-grade 2-channel lab scope and graphing multimeter designed for in-depth automotive and industrial diagnostics. It offers advanced component testing capabilities that surpass standard graphing digital multimeters, enabling technicians to identify complex and intermittent electrical issues with precision.

Key Features

• Dual-Channel Lab Scope: Provides two channels for simultaneous signal analysis, crucial for sophisticated component testing.
• Glitch Capture: Automatically recognizes and saves transient events like dropouts, spikes, and subtle signal changes, allowing technicians to pinpoint intermittent drivability problems as they occur.
• Integrated Graphing Multimeter: Displays up to three measurements concurrently (e.g., DC voltage, injector peak voltage, and pulse width) and offers graphing capabilities for all multimeter functions, revealing subtle changes over time.
• Comprehensive Vehicle Database: Includes vehicle-specific information about almost every domestic vehicle made from 1989-2000, as well as many imports, complete with recommended test procedures.
• Detailed Wiring Diagrams: Features full diagrams showing pin numbers and wire colors for both the PCM and the component connector, simplifying circuit analysis.
• Internet Updatable: Ensures the tool remains current with evolving vehicle technologies through simple internet downloads, eliminating the need for obsolete equipment.

Applications

The OTC Perception 3820 is an essential tool for diagnosing a wide range of automotive and industrial electrical problems. It excels at identifying intermittent faults, such as voltage dropouts and spikes, that are often missed by conventional multimeters. Use it for in-depth analysis of sensors, actuators, ignition systems, and other complex electronic components to achieve accurate and efficient repairs. It can also provide highly accurate ignition measurements in both scope and graph modes on individual cylinders.

Technical Information

• Bandwidth: DC to 100 kHz
• Channels: 2
• Voltage Range: 100 mV to 250 V, full scale scope mode
• Input Impedance: 1 Megohm, 25pF
• Display: 3" x 3.75" (120 x 160 pixels) backlit LCD for clear visibility in varied lighting conditions.
• Power: 6 AA alkaline batteries (approximately 10 hours operation without backlight); provision for optional 110V AC power supply (No. 3820-03).
• Connectivity: RS232 interface provided for bi-directional communication with OTC's GTi software for PCs.
• Includes: Perception 2-channel lab scope/graphing multimeter with color-coded lead set (No. 3820-01), secondary ignition lead (No. 3820-02), 110 volt AC power supply (No. 3820-03), video and manual, all within a plastic storage case.
• Weight: 8 lbs.