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Tektronix 2252 Operator's Manual

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~ r V Z \ S
OPERATORS
I c r y
MANUAL
PORTABLE
OSCILLOSCOPE
OPERATORS.
First Printing JULY 1990
070-7837-00
__________________Product Group 46
Please Check for
CHANGE INFORMATION
at the Rear of th is M anual

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Summary of Contents for Tektronix 2252

  • Page 1 ~ r V Z \ S OPERATORS 070-7837-00 I c r y MANUAL __________________Product Group 46 PORTABLE OSCILLOSCOPE OPERATORS. Please Check for CHANGE INFORMATION at the Rear of th is M anual First Printing JULY 1990...
  • Page 2 Copyright © 1990 Tektronix, Inc. A!! rights reserved. Contents of this publi­ cation may not be reproduced in any form without the written permission of Tektronix, inc. Products of Tektronix, Inc. and its subsidiaries are covered by U.S. and for­ eign patents issued and pending. are registered trademarks TEKTRONIX, TEK, SCOPE-MOBILE and of Tektronix, Inc.
  • Page 3 TEKTRONIX Bescheinigung des Hersteliers/l'mporteurs Hiermit wtrd bescheinigt, daB der/die/das______________ l__ 2252 OSCILLOSCOPE AND ALL INSTALLED OPTIONS in Ubereinstimmung mil den Bestimmungen der Amtsbiatt- Verfugung 1048/1984 funkentstort ist. Der Deutschen Bundespost wurde das inverkehrbringen dieses Gerates angezeigt und die Berechtigung zur Oberprufung der Serie auf Einhalten der Bestimmungen eingeraumt.
  • Page 4 NOTICE to the user/operator: The German Postal Service requires that systems assembled by the operaior/user of this instrument must also comply with Postal Regulation, Vfg. 1046/1984, Par. 2, Sect. 1. HiNWEIS fur den Benutzer/Betreiber: Die vom Betreiber zusammengestellte Anlage, innerhalb deter dies Gerat eingesetzt wird, muB ebenfails den Voraussetzungen nach Par.

  • Page 5: Table Of Contents

    CRT, Power, and Display ..................2-1 Vertical......................... 2-3 Horizontal ........................2-8 T rigger........................2-12 A Trigger Modes ....................2-15 . B Trigger Modes ....................2-16 Rear P anel......................... 2-20 Menu System, Hardcopy, and GPIB Controls and Indicators ......2-21 2252 Operators...
  • Page 6 3-29 Track Trig LvS C u rs o rs ............Track C u rs o rs ..............3-30 3-30 Behavior for Horizontal Mode Changes........3-31 Measurement Compatibility and Error M essages....3-33 Measurements in Single Sequence Mode ......2252 Operators...
  • Page 7 Timing C h e c k s ....... SECTION 5 —BASIC APPLICATIONS Introduction ................CH 1/CH 2 Voltmeter Measurements ............Peak Voltage M easurem ent..................5-2 Gated Voltage M easurem ent............Voltage Measurement C u rsors................. 5-6 Voltage D iffere nce ......Ground-Referenced V oltage................2252 Operators...
  • Page 8 CH 3 and CH 4 VOLTS/DIV Trace Shift ........7-13 CH 1 and CH 2 VAR VOLTS/DIV Trace Shift ..........7-13 CH 1 and CH 2 Input COUPLING Trace Shift ..........7-14 CH 2 INVERT Trace S h ift................... 7-14 2252 Operators...
  • Page 9 150 MHz Trigger Sensitivity................7-32 Single Sweep Mode ............>......7-34 Trigger LEVEL Control R a n g e ................7-34 TV Field Trigger Sensitivity ................7-35 TV Line Trigger S ensitivity................. 7-36 Line Trigger Functional Check ........■ ........7-3 6 2252 Operators...
  • Page 10 25 MHz + Peak, -Peak, and Peak-to-Peak Volts Accuracy ....... 7-54 100 MHz +Peak, -Peak, and Peak-to-Peak Volts Accuracy ..... 7-54 Gated Volts Accuracy ....7-55 COUNTER/T1MER....................7-56 P e rio d ......7-56 Width 7-57 Rise Time Accuracy ..................7-59 2252 Operator?
  • Page 11 Option 1R Rackmounted Instrum ent..............8-2 Other Available O p tio n s ................... 8-2 Standard Accessories ..................... Optional A ccesso rie s....................8-3 APPENDIX A - AUTO AND FACTORY SETTINGS AND SETUPS APPENDIX B - GPIB OPERATION 2252 Operators...
  • Page 12 LIST OF ILLUSTRATIONS Figure Page 1 - 1 The 2252 O s cillo s co p e ....1 ~2 Optional power c o r d s .................. 1-5 T CRT, power, and display c o n tro ls .............. 2 -2 CH 1 and CH 2 vertical controls and indicators ........
  • Page 13 Settings for Timing Accuracy C h e c k s ............7-41 Delay Time Accuracy ........7-44 AUTO SETUP Control S e ttin g s ..............A -2 M!N SETUP Control Settings ..............A -5 Factory Settings ..................A -6 2252 Operators...

  • Page 14: Operators Safety Summary

    . For m axim um Input voltage see T able 6 -1 . Symbols as Marked on Equipment D A N G E R -H ig h voltage. Protective ground (earth) terminal. ATTENTION - Refer to manual. 2252 Operators...

  • Page 15: G Ro U N D In G

    To avoid fire hazard, use only a fuse of the correct type, voltage rating and current rating as specified on the back of your product and in Table 6-1. Do Not Operate in an Explosive Atmosphere To avoid explosion, do not operate this product in an explosive atmosphere. 2252 Operators...
  • Page 16 Do Not Remove Covers or Panels To avoid personal injury, do not remove the product covers or panels. Do not operate the product without the covers and panels properiy installed. 2252 Operators...
  • Page 17 SECTION INTRODUCTION 2252 Operators...

  • Page 19: Product Overview

    Introduction PRODUCT OVERVIEW Description The 2252 is a 100 MHz, four-channel, dual-sweep portable oscilloscope for general-purpose use (Figure 1-1). A microprocessor-based operating sys­ tem controls most of the functions in the instrument, including a fully integrated menu-driven voltage and time measurement system with SmartCursors™.
  • Page 20 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. 2252 Operator...

  • Page 21: Standard Accessories

    The externally controllable front panel coupled with the ability to digitize and output the displayed waveform and all measurement results, makes the 2252 a versatile instrument for use in remote automatic testing and production line environments.

  • Page 22: Preparation For Use

    Install the proper fuse and reinstall the fuse-holder cap. Line Voltage and Power Cord The 2252 operates on line voltages from 90 to 250 V with line frequencies ranging from 48 to 440 Hz. No line voltage selecting is necessary. Instruments are shipped with the power cord that was requested on the order.

  • Page 23: Introduction

    AS-Standards Association of Australia BS™ British Standards institution CEE — international Commission on Rules for the Approval of Electrical Equipment i£C—International Electrotechnical Commission NEMA- National Electrical Manufacturer’s Association SEV—Schweizervischer Elektrotechnischer Verein UL-Underwriters Laboratories Inc. 7337-02 Figure t -2. Optional power cords. 2252 Operators...

  • Page 24: Instrument Cooling

    SELF CAL MEASUREMENTS routine from the SERVICE MENU after the instrument has warmed up for at least 20 minutes. To run the SELF CAL MEASUREMENTS routine, press the top and bottom menu-item select buttons. Press down-arrow button to underline SELF CAL 2252 Operators...

  • Page 25: Repackaging For Shipment

    _ least 275 pounds and an inside dimension at least six inches greater than ■the instrument dimensions. If instrument is being shipped to a Tektronix Service Center, enclose the following information: owner’s address, name and phone number of a contact person, type and serial number of the instrument, reason for returning, and a complete description of the service required.
  • Page 27 SECTION 2 CONTROLS, CONNECTORS, AND INDICATORS 2252 Operators...

  • Page 29: Crt, Power, And Display

    B J BEAM FIND Button—Locates off-screen and overscanned displays when the button is held in. Limits the vertical and horizontal deflection within the display area and unbianks the crt. 2252 Operators...
  • Page 30 100 mm horizontal graticule area. Interna! graticule lines provide parallax-free viewing of trace and graticule lines. 0%, 10%, 90% and 100% points marked at the left edge of the graticule aid in making rise- and fail-tim e measurements. 2252 Operators...

  • Page 31: Vertical

    In ADD mode when AUTO LEVEL TRIGGER MODE or CHOP Vertical MODE is selected, the algebraic sum of Channel 1 and Channel 2 displays provides the internal signal source for the trigger system when the trigger source is VERT, 2252 Operators 2 -3...
  • Page 32 5 V per division in a 1 -2 -5 sequence of 11 steps. The switches are detected, continuous-rotation controls with no end stops. The VOLTS/DIV readouts reflect attenuation factors of coded attenuator probes connected to the vertical inputs. 2252 Operators...
  • Page 33 (ground) reference volt­ age display. The COUPLING switch is in the ground position when the AC and the DC buttons are not lit. A ground symbol (r h ) is displayed to the right of 2252 Operators...
  • Page 34 (Y-Axis) for an X-Y dis­ play. 1^9) PROBE ADJUST C onnector — Outputs a 0.5 V square-wave signal (at about 1 kHz into a 1 MO load) for compensating voltage probes and checking the vertical deflection accuracy. 2252 Operators...
  • Page 35 Figure 2-3. Vertical connectors and CH 3 and CH 4 controls. (30) Auxiliary G round Ja ck —Provides an auxiliary chassis ground con­ nection (banana jack) between the equipment under test and the 2252. Channel 3 and Channel 4 POSITION C o n tro ls —Adjust vertical position of Channel 3 and Channel 4 signal displays.

  • Page 36: Horizontal

    MODE to A, adjust the SEC/DIV switch to a faster A sweep set­ ting, and reset the Horizontal MODE switch to ALT. The B sweep speed and the length of the intensified zone are determined by the B SEC/DIV switch setting. 2252 Operators...
  • Page 37 Trigger in any triggered mode) is delayed from the start of the A sweep by a time determined by the setting of the K- OR DELAY TIME control. The B SEC/DIV switch setting and the Delay Time Position setting are 2252 Operators...
  • Page 38 A sweep speed to at least 1.25 sec per division. The UNCAL indicator is 1 s t and a greater-than sign {> } is displayed before each SEC/DIV readout value when the sweep speeds are greater than the SEC/DIV settings. 2-10 2252 Operators...
  • Page 39 “ M —This control has the following functions: 1. Positions the delta cursor in the cursor measurement mode. 2. Sets the B sweep deita delay in TIME measurement mode when in the ALT or B Horizontal MODES. 2252 Operators 2-11...

  • Page 40: Trigger

    A, B source 1, and B source 2. The button is 1 s t when A is selected and unlit for either B source, if no menu is being displayed, the second-from -top readout line will show which of the three trigger sources is selected, along with slope, as shown below: 2 -1 2 2252 Operators...
  • Page 41 LEVEL C o n tro l—Sets the amplitude level on the trigger signal at which either the A sweep, the B sweep, or the C/T is triggered. When a sweep is triggered, the TRIG'D indicator is iit. During C/T measurements, the TRIG’D indicator is unlit for B trigger. 2252 Operators 2-13...
  • Page 42 ^36) MODE Buttons (U p- and D ow n-A rrow s) and Indicators—Select the operating modes of the A and B trigger systems. Pressing the U p -/ Down-Arrow buttons selects the operating modes as shown by the Trig­ ger MODE lights. 2-14 2252 Operators...

  • Page 43: A Trigger Modes

    The A sweep free-runs to produce a baseline trace when the A Trigger source signal amplitude is too Sow or the triggering-source frequency is less than 10 Hz. AUTO—Triggers the same as the NORM Trigger MODE when an ade­ quate trigger signal is applied. However, the A sweep free-runs when 2252 Operators...

  • Page 44: B Trigger Modes

    Menu Features” in Section 3). B Trigger Modes AUTO LEVEL—Sets the range of the Trigger LEVEL control to the 10% and 90% levels of the B Trigger source signal, sets the Trigger LEVEL, and triggers the B sweep and C/T. 2~16 2252 Operators...
  • Page 45 SOURCE buttons selects the trigger source {for A or B trigger system} as shown by SOURCE lights. For the Counter/Timer system, all measurement sources are selected from the SET MEAS’MT CHANNEL menus; the B trigger SOURCE lights stay off. 2252 Operators 2-17...
  • Page 46 Algebraic sum of CH 1 and CH 2 input signals. LEVEL Lowest numbered vertical channel CHOP displayed. NON­ Alternates between displayed vertical channels in the following order: CH 1, AUTO CH 2, CH 3, CH 4, and ADD. LEVEL 2~1Q 2252 Operators...
  • Page 47 A C —Attenuates trigger signal frequency components below 50 Hz and blocks the dc component of the signal. AC coupling is useful for triggering on ac waveforms that have a large dc offset. 2252 Operators 2-19...
  • Page 48 The active region threshold level is 1.8 V. A Z- Axis voltage above the threshold voltage of 3.8 V produces noticeable modulation. The Z-Axis signals must be time-related to the displayed signal to obtain a fixed intensity-modulated crt display. 2-20 2252 Operators...

  • Page 49: Menu System, Hardcopy, And Gpib Controls And Indicators

    Stem is selected (unless the SERVICE mode CONFIGURE menu is set for: KEEP MENU ON WHEN ITEM SELECTED? YES). The factory settings default is NO. EPSON Is a trademark of Epson Corporation. 2252 Operators 2-21...
  • Page 50 1. Menu display (Service, Measurement, Store/Recal! Setup menus and Hardcopy messages). 2. Measurement function (including TRACK MEASMT cursors if displayed). 3. TRACK TRIG LVL and TRACK ih . Figure 2 -7 . Menu controls. 2-22 2252 Operators...
  • Page 51 (or B source 2} if more than one channel is displayed. Both are set to the same channel when only one channel is displayed. CH 1 is con­ sidered the lowest numbered channel, and ADD is considered the highest numbered channel. 2252 Operators 2-23...
  • Page 52 Menu Features” in Section 3 to set CONFIGURE menu. S y AUTO SETUP Button —Press to automatically set up the front-panel controls to produce a usable crt display. Setups are based on the char­ acteristics of the applied signals. 2 -2 4 2252 Operators...
  • Page 53 Controls, Connectors, and Indicators The voltage and frequency characteristics of the input signal must be within the limits of the 2252 specifications. In addition, applied signals must be large enough to insure a stable trig­ ger in NOISE REJECT at 2 mV/div and be within the dynamic range of the vertical and trigger system at 5 V/div.
  • Page 54 It wiii be turned off when the controller has polled the instal­ ment for its status and no other conditions are pending. AD DR—Turns on when the GPiB is in one of the addressed states, TACS, (Talker-Active State) or LACS (Listener-ACiive State). 2-26 2252 Operators...
  • Page 55 SECTION 3 OPERATORS FAMILIARIZATION 2252 Operators...

  • Page 57: Basic Operation

    0.2 division minor graticule markings on the center graticule lines. Also position one of the measurement points of the waveform as precisely as possible on one of the major graticule marks to be used as a measurement reference point. 2252 Operators...
  • Page 58 Operators Familiarization 1ST OR LEFT 11TH OR RIGHT VERTICAL VERTICAL GRATICULE LINE GRATICULE LINE GRATICULE LINE 6556-11 Figure 3-1. Graticule measurement markings. 2252 Operators...

  • Page 59: Readout Display

    A key to the location and type of readout information displayed is illustrated in Figure 3-2. MEASUREMENT NAME OR ERROR MESSAGE INPUT COUPLING SYMBOLS AC = DC = GND ~ 6373-10 Figure 3-2. Readout display locations. 2252 Operators...

  • Page 60: Connecting Input Signals

    Connecting Input Signals Grounding The most reliable signal measurements are made when the 2252 and the unit under test are connected by a common reference (ground lead) in addition to the single lead or probe. The ground lead of the probe provides the best grounding method for signal interconnection and ensures the maximum amount of signal-lead shielding in the probe cable.

  • Page 61: Section 3" Operators Familiarization

    Operators Familiarization Externa! Triggering Any of the four vertical channels in the 2252 can be used as a source of A and B trigger signals. When you need a trigger signal source different from the one derived from displayed signals, you can use any free vertical input channel.

  • Page 62: Menu System Operation

    T IM E R T IM E R i S E T U P COPY ■MENU -M E A S 'M T ! -C U R S O R S ! ► MENU-SELECT BUTTONS 7837-07 Figure 3-3. Menu buttons, 2252 Operators...

  • Page 63: Clearing The Menu And Cursors Display

    (such as cursor time) does not require a measurement channel setting. When a SET MEAS’MT CHANNEL menu Is displayed, switching between A and ALT Horizontal MODES normally clears the menu and turns off the active measurement mode. 2252 Operators 3 -7...
  • Page 64 (TO A C H A N N E L M E N U ) (B A C K T O DELAY C H A N N E L M E N U ) Delay-Time and Delta-Time Measurement Channel Menus. 2252 Operators...

  • Page 65: Recalling The Last Measurement Mode

    (or B source 2} if more than one channel is displayed. Both are set to the same channel when only one is displayed. CHI is considered the lowest numbered channel, and ADD is con­ sidered the highest numbered channel 2252 Operators...

  • Page 66: Channel 1 And Channel 2 Voltmeter

    Table 3-1 in Behavior for Horizontal MODE Changes for compatibie modes. if a + PEAK, -PEAK, or PK-PK Volts measurement is selected when hori­ zontal mode is either ALT or B, Cursor Knob Allocation Menu 1 is displayed. M EA S DELAY Cursor Knob Allocation Menu 1. 3~10 2252 Operators...
  • Page 67 Characterizes the hardcopy and performs a self charac­ SELF C A L — terization of the vertical system. Before characterizing the hardcopy, remove the input signals from CH 3 and CH 4. SELF CAL may be performed at any time. 2252 Operators 3-11...

  • Page 68: Voltmeter Measurements

    (BACK TO PREVIOUS MENU) —Returns the first page of the Voltmeter menu. Cursor Volts Measurements Press CURSOR VOLTS to display the measurement choices of menu 1. Select (TO AUTO TRACKING MENU) to obtain the auto tracking SmartCursor® choices. 3-12 2252 Operators...
  • Page 69 (or recalled as a last measurement mode), the peak voltages of the source channel signal are measured, and one SmartCursor® is placed at the most positive peak and the other is placed at the most negative peak. 2252 Operators 3-13...
  • Page 70 The T R A C K /* cursor follows the Vertical MODE in that it follows the low­ est displayed channel of either CH 1 or CH 2. SELF CAL TIME MEASMTS—Seif characterizes the horizontal system. SELF CAL may be performed at any time. Suggested times are: after a 3~14 2252 Operators...

  • Page 71: Time Menus

    1 /SEC -H, and le* PHASE -M measurements. If one of these three measure­ ments is selected while in ALT horizontal mode, the C/T will be used to measure the time difference from the reference delay (A sweep start to B 2252 Operators 3-15...
  • Page 72 (cursors can be used in B Horizontal MODE). When the C/T is used, all B Trigger modes are available, as in k* SEC -X. Measurement points are the left ends of the two intensified zones in ALT Horizonta! MODE. 3-16 2252 Operators...
  • Page 73 The 360° TRACKS A TRIG PERIOD function toggles on or off each time its button is pushed, and can be used while making phase measurements in either A Horizontal MODE (using cursors) or ALT or B Horizontal MODES. 2252 Operators 3-17...
  • Page 74 NO A TRIG No A trigger detected after timeout (PHASE in A Horizontal MODE with 360° tracking enabled). > 10GHz 1/delta time value greater than 10 gigahertz. <0.01 Hz 1/deita time vatue less than 0.01 hertz (timeout disabled). 3-18 2252 Operators...
  • Page 75 B Trigger SLOPE is also not settable. B SLOPE LED will be on if doing a RISE measurement and off if doing a FALL measurement. 2252 Operators 3-19...
  • Page 76 If A Trigger SLOPE Is ~f~ and measurement is RISE, A Trigger level Is set near the 10% level (as determined by the RISE measurement's peak acquisition). 3-20 2252 Operators...
  • Page 77 To restart the RISE/FALL measurement, either press the k- SET REF -H menu button again or press the RISE or FALL menu button. The new 10%/9Q% {or 20% /80% ) levels will be calculated and set, and the RISE/ FALL measurement will continue. 2252 Operators 3-21...
  • Page 78 C/T, and saved as a zero reference. Thereafter (until toggled off), ail propagation delay measure­ ments will have this zero reference value subtracted from them. This is useful for zeroing out delay mismatches between channels and probes. 3-22 2252 Operators...

  • Page 79: Counter/Timer

    Press the COUNTER TIMER button to call up the C/T measurement choices. In the (CTR/TiMER) menu, selecting a measurement will cause the menu to disappear (if menus are configured to clear after selection). Selecting TOTALIZE causes the totalize RESET label to appear by the top menu item 2252 Operators 3-23...

  • Page 80: C/T Measurement Menu

    W IDTH—Measures the width of the selected source channel. TOTALIZE — Displays a running count of trigger edges from the selected source channel. NOTE The totalize count is reset to zero whenever a front panel switch/button is movedlpushed. 3-24 2252 Operators...

  • Page 81: Gated C/T Measurement Menu

    When the (CTR/TiMER PG 2} menu is up, selecting a measurement win start the measurement, but leave the menu up. The selected measurement item is underlined. GATED FREQ — Measures the frequency of that portion of the selected source channel that appears inside the intensified zone. 2252 Operators 3-25...

  • Page 82: C/T Control Menu

    The C/T control menu contains measurement modifier functions that can increase the versatility of C/T measurements. The first two menu items are applicable only to gated C/T measurements. Only one of these two itemscan be selected at a time. 3-26 2252 Operators...
  • Page 83 If it is not possible, the message NOT POSSIBLE — > is displayed to the left of the X10 RESOL menu label for approximately one second, then the X10 RESOL label is deselected and the AUTO RESOL label is selected (underlined), and the measurement proceeds in auto resolution mode. 2252 Operators 3-27...
  • Page 84 C/T TRIG TIM EO U T—This is the iast item intheC /T control menu. Each time the menu button for this item is pressed, the item is either selected (underlined) or deselected (not underlined). When selected (the default 3~28 2252 Operators...

  • Page 85: Conditions For Cursors Display

    If less than two cursors are currently displayed, trigger level cursor(s) for the B Trigger C/T measurement source(s) will be displayed if:' - TRACK TRIG LVL is underlined, and the Horizontal Mode is valid for selected C/T measurement, and the Trigger Mode and Coupling are valid. 2252 Operators 3-29...

  • Page 86: Track F H Cursors

    Volts measurement that is active will be canceled if SGL SEQ Trigger MODE is selected, if a gated-voltage measurement is selected while SGL SEG is also selected, the message NOT ALLOWED IN SSEQ is displayed for 3-30 2252 Operators...

  • Page 87: Measurement Compatibility And Error Messages

    O U C H -T U R N VOLTS/DIV CCW. NOTE When making DC measurements, overranged signals will not cause an error message to be displayed but can display incorrect voltage readings. To obtain accurate DC readings keep the waveform within the graticule limits. 2252 Operators 3-31...
  • Page 88 DELAY time is set to 0.25 division or less from the beginning of the sweep. If the oscilloscope in not triggered when a gated voltage measurement mode is selected, the following error message is displayed: LO REP RATE - STILL TRYING. 3-32 2252 Operators...

  • Page 89: Measurements In Single Sequence Mode

    However, there are four menu selections that are also for operational use: CONFIGURE, SELF CAL MEASUREMENTS, MAKE FACTORY SETTINGS, and LOAD STORE/RECALL SETUPS. Press the top and bottom m enu-item select buttons to display the SERVICE MENU. 2252 Operators 3-33...
  • Page 90 For each answer, YES or NO will be under­ lined to indicate how the instrument is presently configured. After YES or NO is selected, the next configuration choice is displayed. After answering the last question, the SERVICE MENU display returns. To exit from the 3-34 2252 Operators...
  • Page 91 Trigger Mode. This mode lets you view any of the measurements that continue to be made during SGL SEQ trigger mode even if no waveform is being displayed. The front panel control settings may also be made in 2252 Operators 3-35...
  • Page 92 20 Hz or faster than 100 MHz. Under the conditions of 1 and 2 above, a question mark may appear before the measurement value and remain until the ~H or I<- knob is moved. The user should, however, always inspect the display to 3-36 2252 Operators...
  • Page 93 SELF CAL item from the VOLTMETER Measurement Menu. Timing measurement may also be calibrated separately by selecting SELF CAL item from the TIME Measurement Menu. 2252 Operators 3-37...

  • Page 94: Internal Settings Menu

    SET GPIB ADDRESS—Sets the GPiB address number for the 2252. Vaiid numbers are from 00 to 31. Selecting 31 writ remove the instrument off the bus. The factory default GPiB address number is 01.

  • Page 95: Store/Recall Setup Features

    END SEQ DELETED Empty Setup Memories Non stored locations are not accessed when sequencing. All 20 locations may be user added and sequenced as needed. __________________________________________________________________________________________ 7 8 3 7 -0 6 Figure 3-4. Typical Store/Recall Setup sequencing. 2252 Operators 3-39...

  • Page 96: Factory Stored Setups

    Factory Stored Setups When the 2252 Is shipped from the factory, the Store/Recali Setup memory contains eight stored front-panel setups. These factory setups are stored in setup locations 01 through 08. The setups may be recalled and used for demonstration and training, or they may be used as a basis for setups which suit your specific applications.

  • Page 97: Store/Recall Setup Menu

    KEEP MENU ON WHEN MEAS SELECTED YES or NO > RECALL ONLY? (IN STORE/RECALL) KEEP MENU ON WHEN S/R SELECTED? Press the CLEAR DISPLAY button to exit the SERVICE MENU. Press the STORE/RECALL SETUP button to display the Recall Only menu. 2252 Operators 3-41...
  • Page 98 Press the CLEAR DISPLAY button to exit from the SERVICE MENU. Press the STORE/RECALL SETUP button. Press the SEQUENCE button to display the Recall Only menu. CH 1 +PEAK 2.42 V Name o f Record NEXT SEQ 5V— 2V“ .IVw RECALL ONLY menu. 3-42 2252 Operators...
  • Page 99 To configure the oscilloscope to access the full features of the Store/Recali Setup menu when the STORE/RECALL SETUP button is pressed, perform the following procedure: Press the top and bottom Menu-Seiect buttons to display the SERVICE MENU. 2252 Operators 3-43...
  • Page 100 (if one is). The measurement value is not displayed. Name o f R e c o rd - Name given to the currently displayed record. This is a user-assigned name and it may be altered (see the ALTER LABELS function). 2252 Operators...
  • Page 101 DELETE - Deletes the contents of the current setup number. The num­ ber of each setup above the deleted one is reduced by one. In most cases, the last setup deleted can be recovered if necessary; see Recovering A Deleted Setup in this section. 2252 Operators 3-45...
  • Page 102 Status TOGGLE STATUS M- M O V E S ..ALTERS CHAR RETURN ALTER LABELS menu. The descriptions of the readout locations and menu items of the ALTER LABELS menu are from top to bottom as follows: 3-46- 2252 Operators...

  • Page 103: Recovering A Deleted Setup

    SEQ. Select END SEQ to mark a record as the last in a sequence. RETURN-Returns to the Store/Recall Setup menu. Recovering A Deleted Setup A setup deleted by a STORE or DELETE function is saved in the store/recall memory for recovery. Only the last deleted setup may be recovered. 2252 Operators 3-47...

  • Page 104: Storing Setups In S Eq Ue Nce S

    END SEQ or the last stored record. To store a sequence o f fro n t-p a n e l setups, perform the follow ing procedure: 1. Set CONFIGURE in the Service Menu for the following: KEEP MENU ON WHEN MEAS SELECTED YESorNO 3-48 2252 Operators...
  • Page 105 10. if your sequence did not begin at setup location 01, use the ALTER LABELS menu to alter the status of the setup just preceding your first setup in the sequence to END SEQ. 2252 Operators 3-49...

  • Page 106: Waveform Digital Acquisition Modes

    In Peak Detect mode, the minimum and maximum levels of the input signal within the time represented by 1/25 of a division unmagnified are digitized as data pairs. In Sample mode, the signal is sampled at a rate that produces 50 samples per graticule division. 3-50 2252 Operators...
  • Page 107 SECTION 4 OPERATOR CHECKS AND ADJUSTMENTS 2252 Operators...

  • Page 109: Initial Setup

    (20 minutes is recommended for maximum accuracy). 2. Set the instrument front-panel controls to obtain a baseline trace: V ertical C o n tro ls Vertical MODE CH 1 POSITION Center the trace VOLTS/DIV VOLTS/DIV VAR Calibrated detent Channel 1 COUPLING 2252 Operators...

  • Page 110: Auto Setup Function

    Connect signal(s) to be displayed to the appropriate input connector(s). For triggering to be set up properly when the AUTO SETUP button is pressed, connect the trigger-source signal to the lowest numbered channel that will be turned on. 4 -2 2252 Operators...

  • Page 111: Trace Rotation Adjustment

    The attenuator probes are equipped with compensation adjustments. To ensure the best measurement accuracy, always check probe com­ pensation before making measurements. Connect the two supplied 10X probes to the CH 1 and CH 2 input connectors. 2252 Operators...
  • Page 112 Press the CH 2 Vertical MODE button to turn CH 2 on in the display, and press the CH 1 Vertical MODE button to remove the CH 1 trace from the display. Figure 4-1. Probe compensation. 2252 Operators...

  • Page 113: Vertical Deflection Check

    Vertida! POSITION control. Check for a five-division display of the PROBE ADJUST square-wave signal. 8. Select CH 2 Vertical MODE and repeat steps 6 and 7. Disconnect the probes from the instrument. 2252 Operators...
  • Page 114 H- OR DELAY TIME control (both cursors are positioned together). 4. Adjust the control for a reading of 800.0 fxs. Check that the cursors are eight divisions apart. Press the CLEAR DISPLAY button to remove the cursors from the display. 2252 Operators...

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