Tektronix Keithley 2601B-PULSE User Manual

Model 2601B-PULSE System SourceMeter® Instrument User's Manual Section 4: Operation
2601B-PULSE-900-01 Rev. A August 2021 4-35
For more information about the sweep functions, see the "Sweep operations" section in the Model
2601B-PULSE Reference Manual.
When the pulser is disabled, configured source and measure delays are imposed when the SMU
executes the source and measure action blocks.
Regardless of the pulser state, if the measure count setting is greater than one, the measure count is
satisfied each time the measure action is performed.
The arm and trigger counts must be set to control how many times the SMU executes the source and
measure actions. The arm count indicates the number of times to execute the complete sweep. The
trigger count sets the number of loops in the trigger layer. Typically, you set the trigger count to be
equal to the number of points in the configured sweep. If the trigger count is not equal to the number
of points configured in the sweep, then one of the following occurs:
• If the trigger count is greater than the number of points in a sweep as configured by
smua.trigger.source.linearY(), smua.trigger.source.logY(), or
smua.trigger.source.listY(), then the SMU satisfies the trigger count by restarting the
sweep values from the beginning.
• If the trigger count is less than the number of source values configured, then the SMU satisfies
the trigger count and ignores the remaining source values.
For example, configure a three-point linear voltage sweep from 1 to 3 V, with the trigger count set to 2.
The SMU outputs 1 V, 2 V. If the trigger count is set to 6, the SMU outputs the values 1 V, 2 V, 3 V,
1 V, 2 V, 3 V, repeating the source values twice in a single sweep.
Enabling pulse sweeps using the end pulse action
When the pulser is disabled, you can enable pulse sweeps by using the end pulse action. When the
pulser is enabled, the instrument always behaves as if the endpulse action is set to
smua.SOURCE_IDLE.
The command below illustrates how to configure pulse mode sweeps by setting the end pulse action:
smua.trigger.endpulse.action = smua.SOURCE_IDLE
You can use timers to configure the pulse width and period.
To disable pulse sweeps, set the smua.trigger.endpulse.action attribute to
smua.SOURCE_HOLD.
When the pulser is enabled, you can use the smua.trigger.source.pulsewidth attribute to
control the pulse width. The smua.trigger.source.pulsewidth and
smua.pulser.measure.delay attributes provide more precise timing than you can achieve using
the smua.trigger.endpulse.action attribute.
For more information on timers, refer to “Timers” in the Model 2601B-PULSE Reference Manual.

Tektronix Keithley 2601B-PULSE Specifications

General

Brand	Tektronix
Model	Keithley 2601B-PULSE
Category	Measuring Instruments
Language	English

Summary

Section 1 Introduction

Welcome

Welcomes the user to the Keithley Instruments product and describes the instrument.

Extended Warranty Information

Information on purchasing extended warranty coverage for products.

Contact Information and Support

Provides contact details for questions and support from Keithley Instruments.

Customer Documentation

Lists the available documentation for the 2601B-PULSE, including Quick Start Guide, User's Manual, Reference Manual.

Product Software and Drivers

Information on downloading software, drivers, and utilities for the instrument.

Power and Environmental Ratings

Details the electrical and environmental specifications for the instrument's operation.

Section 2 Installation

Installation Introduction

Introduces the installation section, covering setup, connections, and power-up.

Instrument Weights and Dimensions

Provides physical dimensions and weight specifications for the instrument and its accessories.

Installing the 2601B-P-INT Accessory

Step-by-step guide for installing the 2601B-P-INT accessory to the instrument.

Cooling Vent Requirements

Discusses the importance of unobstructed cooling vents for instrument performance and longevity.

Powering the Instrument On and Off

Provides instructions for powering the instrument on and off, including safety precautions.

Standby Mode Operation

Explains how to place the instrument into standby mode and its implications.

Instrument Warmup Period

Specifies the required warmup time for the instrument to achieve rated accuracies.

Line Frequency Configuration

Details how to configure the instrument's line frequency detection for accurate measurements.

Remote Communications Interfaces

Outlines the available interfaces (USB, LAN, GPIB, RS-232) for instrument control.

Interlock Setup and Connection

Explains how to set up and connect the optional safety interlock for secure operation.

System Information Retrieval

Describes how to retrieve instrument details like serial number and firmware version.

Section 3 Instrument Description

Front Panel Controls, Indicators, and Connectors

Describes the front and rear panel controls, indicators, and connectors of the instrument.

Front Panel Menu Navigation

Provides an overview of how to navigate and use the instrument's front-panel menus.

Beeper Settings

Explains how to enable or disable the instrument's audible beeper for key presses and actions.

Displayed Error and Status Messages

Details how error and status messages are displayed and managed by the instrument.

Display Operations and Modes

Describes how to use the display and its various modes for viewing instrument information.

USB Flash Drive Connection

Instructions for connecting a USB flash drive for data storage and firmware upgrades.

Restoring Factory Default Setups

Explains how to reset the instrument to its original factory default configurations.

Using the Web Interface

Guide to accessing and using the instrument's web-based interface for control and configuration.

Section 4 Operation

Operation Overview

Provides a general overview of the instrument's SMU and pulser functionalities.

DUT Test Connections

Details fundamental source-measure configurations and connection methods for testing devices.

Sense Mode Selection

Explains how to configure voltage sensing modes (2-wire local, 4-wire remote).

Output-Off Modes

Describes different output-off modes (normal, high-impedance, zero) for safe operation.

Pulser Operation Details

Provides detailed information on using the instrument's high-speed current pulser capabilities.

Using the Trigger Model

Explains the remote trigger model for controlling source sweeps and measurements.

Section 5 Maintenance

Maintenance Introduction

Introduces routine maintenance tasks and measurement optimization.

Displaying the Serial Number

Instructions on how to view the instrument's serial number via front panel or menus.

Line Fuse Replacement Procedure

Step-by-step guide for safely replacing the instrument's line fuse.

Front Panel Tests

Describes tests to verify the functionality of front-panel keys and the display.

Firmware Upgrade Process

Instructions for loading new or older firmware versions onto the instrument.

Section 6 Next Steps

Additional 2601B-PULSE Information

Directs users to the Keithley Instruments website for more resources and support.