Table of Contents
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Table of Contents
Related Manuals for Gould 420
Summarization of Contents
Introduction
1.1 Safety and Power Requirements
Guidelines for safe operation, grounding, ventilation, and power requirements.
1.2 Using the Buttons
Explanation of the three types of buttons: single function, toggles, and pressure-sensitive.
1.3 Start-Up Display
Describes the initial display after powering on, including calibration and basic trace information.
1.4 Obtaining a Trace
Steps to display a signal, including using AUTO SETUP and channel selection.
1.5 Horizontal Adjustments
Controls for adjusting timebase, position, and magnification of the trace.
1.6 Vertical Adjustments
Controls for adjusting channel sensitivity (VOLTS/DIVISION) and position.
1.7 Manually Obtaining a Trace
Procedure for obtaining a trace without using AUTO SETUP.
1.8 Operating Hints
Common operational problems and their solutions, including trace dimness and acquisition issues.
Advanced Features
2.1 Trigger Control
Detailed explanation of trigger settings like source, coupling, level, slope, and mode.
2.2 Capture Facilities
Features for freezing traces, including Trace Hold and Single Shot/Run modes.
2.3 Display Modes
Explains Refresh, Roll, and X-Y display modes for viewing waveforms.
2.4 Cursor Measurements
Using cursors and datum lines for taking time and voltage measurements on traces.
2.5 Plot
Information on using the internal colour plotter for hard copy output of displays.
2.6 Data Transfer
Procedures for transferring trace data to and from a computer via RS423 interface.
2.7 Real Time Clock (420 and 450 only)
Functionality and setting of the real-time clock for plot annotation.
The Menus
3.1 Additional Buttons
Explains the role of numeric buttons (1-7) for accessing menu functions.
3.2 Control Master Menu
Overview of the main menu structure and its sub-menus for instrument setup.
3.3 Status Menu
Displays current instrument settings for mode, timebase, trigger, and channel sensitivity.
3.4 Display and Trigger Menu
Controls probe ratio, maximin detection, dot joining, averaging, and trigger delay.
3.5 Display Intensity
Adjusts the brightness of traces, cursors, alphanumerics, and graticule.
3.6 Reference Trace
Allows storing a trace for comparison with the currently displayed channels.
3.7 RS423 Interface Menu
Configures RS423 output parameters for plotters and data handling devices.
3.8 Special Functions
Controls auto-calibration and allows forcing a full internal calibration.
3.9 Post Storage Master Menu
Accesses menus for trace memory operations and plotter output parameters.
3.10 Save Trace Menu
Saves displayed traces to battery-backed memory for later recall.
3.11 Recall Memory Menu
Recalls previously saved traces from memory to the display.
3.12 Plot menu
Sets plot mode, graticule inclusion, cursor display, and output destination.
Performance Checking
4.1 Risetime
Procedure to measure the rise or fall time of a fast edge pulse.
4.2 Bandwidth
Method to check the frequency response of the oscilloscope.
4.3 Trigger Sensitivity
Verifies the instrument's ability to trigger reliably on input signals.
4.4 Trigger Bandwidth
Checks trigger performance at high frequencies.
4.5 Timebase Calibration
Procedure to calibrate the accuracy of the timebase settings.
4.6 Vertical Calibration
Method to calibrate the vertical sensitivity (VOLTS/DIVISION) of the channels.
4.7 Max-Min (Alias Detector)
Utilizes Max-Min function to detect aliases and verify signal integrity.
Waveform Processing Functions
5.1 Cursor Measurements
Enables measurements of voltage, time, peak-peak, max-min, etc., using cursor lines.
5.2 Trace Manipulation
Functions to filter, invert, and integrate waveforms for analysis.
5.3 Trace Arithmetic
Allows adding, subtracting, or multiplying traces to perform calculations.
5.4 Persistence/Limits Testing
Sets trace persistence and tests signals against upper/lower limit boundaries.
Battery Unit Operation
6.1 AC Supply Operation
How to operate the DSO and battery unit using AC power.
6.2 DSO Battery Operation
Using the DSO solely on battery power without AC supply.
6.3 Battery Recharge
Procedures for recharging the internal battery unit.
6.4 Alarm Conditions
Explains alarm lamp indicators and their meanings.
6.5 Extreme Temperature Operation and Storage
Guidelines for operating and storing the unit within specified temperature ranges.
6.6 Independent Operation of DSO
Operating the DSO without the battery unit or with an external DC source.
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