This Tektronix 485/R485 Oscilloscope Owner's Manual provides a comprehensive guide to operating and maintaining your instrument. It covers a range of topics, including installation, setup, calibration, troubleshooting, and safety procedures. You'll find detailed explanations of the oscilloscope's features and functions, along with step-by-step instructions for performing various measurements and tests. The manual also includes a glossary of terms, a troubleshooting guide, and a comprehensive index for easy reference.

The Tektronix 485/R485 Oscilloscope is a versatile and robust piece of electronic test equipment renowned for its reliability and performance. Designed for a wide range of applications, from basic circuit analysis to advanced research and development, the 485/R485 boasts a 100 MHz bandwidth, a dual-channel display, and a variety of triggering and measurement capabilities. Its rugged construction and ease of use made it a popular choice for both industrial and educational settings. The 485 offered a range of features, including a sweep time range from 0.5 μs/div to 1 s/div, a vertical sensitivity of 1 mV/div to 10 V/div, and a variety of triggering modes, including edge, slope, pulse width, and video. The R485, a rack-mountable version of the 485, provided the same functionality in a more compact and portable format.

The 485/R485 utilized an analog CRT display, offering a clear and detailed representation of waveforms. Its intuitive controls and front-panel layout allowed for easy operation and adjustments. The oscilloscope could be used to measure various parameters like voltage, current, frequency, phase, and pulse width. It offered the ability to perform a variety of tests, including waveform analysis, signal comparison, timing measurements, and troubleshooting electronic circuits. The 485/R485’s reputation for reliability and ease of use, coupled with its comprehensive feature set, made it a valuable tool for electronics engineers, technicians, and educators for many years. While the Tektronix 485/R485 is now considered a legacy instrument, it continues to be a testament to Tektronix's commitment to developing high-quality and enduring test equipment for the electronics industry.