Tektronix 2247A Oscilloscope Analog 100 MHZ, 4 Channel, Refurbished. The 2247A is a 100 MHz, four-channel, dual-sweep, portable oscilloscope for general-purpose use. A microprocessor-based operating system controls most of the functions In the Instrument, including a fully integrated menu-driven voltage and time measurement system with SmartCursors. A counter/timer (C/T) is integrated into the trigger system to provide many automated counting and timing measurements with high accuracy. Other features include single-button automatic front-panel setup and a menu-driven store/recall setup function. A menu-driven service mode provides for configuring of certain menu and readout displays, internal calibration, and servicing diagnostic. The vertical deflection system has four input channels. Two channels have 1 1 basic deflection factors from 2 mV to 5 V per division, and two channels have two basic deflection factors of 0.1 V and 0.5 V per division. Basic deflection factors can be extended with attenuator probes. VOLTS/DIV readouts are switched to display the correct vertical scale factors when properly coded probes are connected to the vertical input connectors. The horizontal deflection system provides single, dual, or delayed sweeps from 0.5 s to 20 ns per division (delayed sweep, 5 ms to 20 ns per division). The trigger system provides stable triggering over the full bandwidth of the vertical deflection system. Alphanumeric crt readouts of the vertical and horizontal scale factors are displayed at the bottom of the screen. On-screen vertical and horizontal cursors provide accurate voltage, time, frequency, and phase measurements; measurement values are displayed at the top of the crt. Measurement features include voltage, time, frequency, and phase, counter/timer measurements, and rise time/fall time or propagation delay. Voltage measurements Include positive peak, negative peak, peak-to- peak, and average dc levels, measured over the entire display or a selected portion (gated measurements). Counter/timer measurements Include frequency, period, width, totalize, frequency ratio, gated frequency, gated period, gated width, gated events, delta time, one-over-delta time, phase, rise/fall time, and propagation delay, using an Internal or external frequency standard. Counter/timer measurements can be averaged to Increase the number of displayed digits, and measurement trigger points can be indicated with cursors on screen. Positionable cursors allow absolute voltage, voltage difference, time difference, frequency, and phase measurements. Smart Cursors visually track voltage measurements, trigger levels and ground, and may be selectively displayed with the waveforms. Time, frequency, and phase measurements referenced to the trigger event or between two user- selected events are available In ALT and B horizontal modes. By pressing a single button (AUTO SETUP), the front-panel controls can be set up to produce a usable waveform display based on the voltage and time characteristics of the Input signals. The Store/Recall system lets you store and recall up to 20 different front- panel setups. Stored setups can be arranged In sequences as required for specific applications.
Condition: Refurbished