Tektronix 2215 Data Sheet

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NAVAIR 17-2OAW-297

TECHNICAL MANUAL

INSTRUMENT CALIBRATION PROCEDURE

OSCILLOSCOPE

TEKTRONIX

2215

THIS PUBLICATION SUPERSEDES NAVAIR 17-2OAW-297

DATED 1 AUGUST 1994

~lSTRlBUTIONSTATEMENTC.DlSTRlBUTIONAUTHORIZEDTOU.S.GOVERNMENTAGENCIESANDTHEIR CONTRACTORS TO PROTECT PUBLICATIONS REQUIRED FOR OFFICIAL USE OR FOR ADMINISTRATIVE OR OPERATIONALPURPOSESONLY. OTHERREQUESTSFORTHISDOCUMENTSHALLBEREFERREDTONAVY

MEASUREMENT SCIENCE DIRECTORATE, NAVAL WARFARE ASSESSMENT STATION. P.O. BOX 5000

CORONA,CA92878-5000.

DESTRUCTION NOTICE - FOR UNCLASSIFIED, LIMITED DOCUMENTS, DESTROY BY ANY

METHOD THAT WILL PREVENT DISCLOSURE OF CONTENTS OR “RECONSTRUCTION OF THE DOCUMENT.”

PUBLISHED BY DIRECTION OF COMMANDER NAVAL AIR SYSTEMS COMMAND

1 OCTOBER 1999

NAVAIR 17-2OAW-297

LIST OF EFFECTIVE PAGES

The purpose of this list is to identify the pages in this document affected by any technical content changes made since the previous release of the document.

NOTE: On a revised page, with the exception of the Title, the A, and the i pages, the technical changes are indicated by a

vertical line in the outer margin of the page.

Page

No.

Title A

1 to 17 18 (blank) 19to23

Revision*

0 0 0 0 0 0

Page

No. Revision*

Page

No.

Revision*

* Zero in this column indicates an original page.

“R” in this column indicates a revised page.

TABLE OF CONTENTS

NAVAIR 17-2OAW-297

Section

1 Introduction and Description

2 Equipment Requirements ............................................

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

4.10

4.11

4.12

4.13

Preliminary Operations .............................................

Calibration Process

Vertical Amplifier Trace Alignment and Balance Tests

Geometry Test ......................................

Vertical Amplifier Deflection Accuracy Tests Vertical Input Divider Compensation Tests Vertical Amplifier Compensation Tests

TriggerTests ........................................

Sweep Time Tests ....................................

Magnifier Registration Test ............................

Magnifier Accuracy Tests .............................

B Delay Dial Accuracy and Jitter Tests

Rise Time Tests ......................................

Common-Mode Rejection Test ..........................

X-Axis Accuracy Test and Probe Adjust Signal Test .........

Navy Calibration Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

.....................................

.........................................

..............

.................

...................

....................

ILLUSTRATIONS

.......

. . . . . . . . .

............

Page

1 3 4 5

5 6 7

10 10

11 14 14 14

1.5 16 17

Figure

1 Geometry Displays ._............................................................

2 Typical Attenuator Compensation Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TABLES

Table

1 Calibration Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Equipment Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _ . . . . . .

Page

6 9

Page

NAVAIR 17-2OAW-297

SECTION 1

INTRODUCTION AND DESCRIPTION

1 .l This procedure describes the calibration of the Tektronix 2215 Oscilloscope, which is referred to herein as the TI (Test

Instrument).

1.2 All comments concerning this procedure should be directed to Navy Measurement Science Directorate, Naval Warfare

Assessment Division, P.O. Box 5000, Corona, CA. 92878-5000.

1.3 This procedure includes tests of essential performance parameters only. Any malfunction noticed during calibration,

whether specifically tested for or not, should be corrected.

1.4 The TI can be supported using workstations 2A and 2B. Table 1. Calibration Description

Characteristics

Trace alignment

Vertical balance

Geometry

Vertical amplifier

deflection accuracy

Vertical input divider

compensation

Vertical amplifier

compensation

Performance

Specifications

Trace parallel to TI center

horizontal graticule line

Assigned specification: 0.5 division

maximum shift over calibrated vertical deflection range

Vertical display correctly aligned

Range: 2 mV/div to 10 Vldiv

in 12 calibrated steps in a 1,2,5 sequence

Tolerance: +3% Implied specification: No change

in attenuation ratio over frequency range

Implied specification: Amplifier

hysteresis correctly damped

Test

Method

Tested using the TI display.

Tested using the TI

display.

Tested by observing a

terminated fast rise signal from a time mark generator.

Tested using the TI display

and a voltage calibrator.

Tested by applying a square

wave signal to the TI and observing the TI display for proper compensation.

Tested by applying a fast rise

square wave signal to the TI input and verifying that ringing and excessive rolloff are not present.

Triggering

Internal A: Stable to within 0.4

vertical divisions from DC to

2 MHz, increasing to 1.5 divisions at 60 MHz

Internal B: Stable to within 0.4

vertical divisions from DC to

2 MHz, increasing to 2 divisions at 60 MHz

External: Stable triggering with

50 mV of signal from DC to

2 MHz, increasing to 250 mV at 60 MHz

Tested internally using the TI

display and the TI PROBE ADJUST output signal.

Tested by inference during

sweep time tests.

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Characteristics

Sweep time

(unmagnified)

Magnifier registration

Sweep time (magnified)

Delay time dial accuracy

and delay jitter

Range A: 0.5 s/div to 0.05 usldiv

in a 1,2,5 sequence

Range B: 0.05 us/div to 50 ms/div

in a 1,2,5 sequence

Tolerance: +3% over the center

8 divisions. (Excludes the first 25 ns of the sweep.)

Assigned specification: 0.2 division

maximum shift at the center graticule

Range: Extends maximum sweep

speed to 5 nstdiv

Tolerance: +5%

Range: Variable from 0.5 to

10 divisions Dial tolerance: +1.5% fs Jitter tolerance: (0.01% of

maximum available delay

Test

Method

Tested using the TI display

and a time mark generator.

Tested using the TI display

and a time mark generator.

Tested using the TI display

and a magnified sweep is verified not to add more than 2% additional error to the unmagnified sweep time.

Dial accuracy tested using the

TI display, a time mark generator, and the TI B DELAY TIME dial indications. Delay jitter tested using TI display and a time mark generator.

Rise time

Vertical amplifier

common-mode rejection ratio

X-axis accuracy

Range: 2,5, and 10 mV Tolerance: 7.0 ns max Range: 20 mV and above Tolerance: 5.8 ns max

Ratio: At least 10: 1 at 10 MHz

Range: 2 mV/div to 10 V/div Tolerance: +5%

Bandwidth: DC to at least 2 MHz

Tested using the TI display, a

pulse generator, a step

attenuator, and a feedthrough termination.

Using a signal generator set

to 50 kHz and a

feedthrough termination, the

TI vertical amplifiers are

adjusted for the best common mode rejection ratio as indicated by the TI display. The test frequency is then set to 10 MHz and the amount of signal on the

TI display is verified.

Tested on one range using a

voltage calibrator and the TI display.

Not tested.

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Characteristics

Probe adjust voltage

Voltage: 0.5 V Tolerance: +20%

Performance

Specifications

Test

Method

Tested by measuring the

PROBE ADJUST signal

amplitude using the TI X-axis amplifiers and the

TI display.

Frequency: 1 kHz

Not tested.

SECTION 2

EQUIPMENT REQUIREMENTS

NOTE

Minimum use specifications are the principal parameters required for performance of the calibration, and are included to assist in the selection of alternate equipment, which may

be used at the

discretion of the using laboratory. Satisfactory performance of alternate items shall be verified prior to use. All applicable equipment must bear evidence of current calibration.

The instruments utilized in this procedure were selected from those known to be available at Navy calibration facilities, and the listing by make or model number carries no implication of preference, recommendation, or approval for use by other agencies. It is recognized that equivalent equipment produced by other manufacturers may be capable of equally satisfactory performance in this procedure.

Table 2. Equipment Requirements

Item

2.1 Time mark generator

Minimum Use

Specifications

Fixed markers: 50 ns to 0.5 s in a

1,2,5 sequence

Tektronix TG501 OPT01

Calibration Equipment

installed in a TM 504 Uncertainty: +0.75% Variable markers: 1 ms and 0.1 ms,

variable from nominal by at least 5%, either direction

Uncertainty: The 0.1 ms markers

must be precisely one decade greater than the 1 ms markers

Triggers: 1 ps to 1 s

2.2 Feedthrough termination

Frequency range: DC to 60 MHz Impedance: 50 n

Tektronix 0 1 l-0049-01 or

011-0099-00

VSWR: 1.1 maximum

NAVAIR 17-2OAW-297

Item Minimum Use

2.3 Voltage calibrator

2.4 Attenuator

2.5 1O:l probe

2.6 Pulse generator

2.7 Dual BNC connector

Calibration

Specifications

Voltage: 10 mV p-p (3.536 mV rms)

to 50 V p-p (17.68 V rms) Uncertainty: *OS% Frequency: 1 kHz (sine wave or

square wave) Attenuation: Variable from 0 to 30 dB

in 10 dB steps 355DOPTOOl Frequency: DC to 500 MHz

Impedance: 50 Q VSWR: 1.50 max.

Must be capable of dividing by 10: 1

signals from DC to 60 MHz into a

1 MB, 30 pF load

Frequency: 50 kHz

Pulse width: 1 us

Amplitude: + 150 mV min. into 50 52

Rise time: 400 ps max. Configuration: One input with two

outputs at the end of RG 58 cable

which are matched to within

0.1 in.

Tektronix PG506 installed

Hewlett-Packard

Tektronix P6120, P6108, or

Tektronix 284

Tektronix 067-0525-01

Equipment

inaTM504

P6149 submitted with the TI

2.8 Signal generator

3.1 Ensure that all power switches are set to off, and set all auxiliary equipment controls as necessary to avoid damage to

the equipment and so that dangerous voltages will not be present on output terminals when the power switches are turned on.

3.2 Connect the auxiliary equipment and the TI to the appropriate power source.

3.3 Adjust the TI AUTO INTENSITY control fully counterclockwise.

A BRIGHT SPOT OR TRACE MAY DAMAGE THE TI CRT. THROUGHOUT THIS PROCEDURE, THE INTENSITY SHOULD BE ADJUSTED FOR A DIM SPOT OR TRACE UNLESS OTHERWISE INSTRUCTED.

Frequency: 50 kHz and 10 MHz Output voltage: 120 mV p-p

(42.4 mV rms) into 50 Q

SECTION 3

PRELIMINARY OPERATIONS

CAUTION

Tektronix SG503 installed

in a TM 504

3.4 Turn all power switches on and allow a sufficient warm up time for the equipment. The TI requires a 20 minute warm

up time. Perform step 4.1.1 during the warm up period.

SECTION 4

CALIBRATION PROCESS

NOTE

Unless otherwise specified, verify the results of each test and take corrective action whenever the test requirement is not met, before proceeding.

4.1 VERTICAL AMPLIFIER TRACE ALIGNMENT AND BALANCE TESTS

NOTE

Unless otherwise specified, the TI VOLTS/DIV switches for CH 1 and CH 2 will always be set to the 1X window.

4.1.1 Set the TI controls as follows:

NAVAIR 17-2OAW-297

CH 1 and CH 2 Vertical Amplifier controls:

POSITION controls to VOLTSlDIV switches to

VOLTS/DIV Variable controls to VERTICAL MODE switch to AC-GND-DC switches to INVERT switch to

TRIGGER controls:

VAR HOLDOF’P control to

MODE switch to

SLOPE switches to LEVEL controls to A & B INT switch to A SOURCE switch to

SWEEP Controls:

midrange 20 m

fully cw (in detent) CH 1

GND

out (released)

NORM (fully ccw) AUTO top position (1 )

midrange VERT MODE INT

HORIZONTAL MODE switch to

SEC/DIV switch to SECIDIV Variable Sweep control to SECYDIV Xl0 Magnifier switch to

.5 ms fully cw (in detent) off (knob in)

NAVAIR 1 I-2OAW-297

4.1.2 Adjust the TI AUTO INTENSITY, AUTO FOCUS, CH 1 vertical POSITION control, and the horizontal POSITION

control to obtain a medium-bright, well-defined trace that is centered on the TI center horizontal graticule line.

4.1.3 Verify that the trace is parallel to the TI center horizontal graticule line. If necessary, adjust the TI TRACE

ROTATION control to obtain a trace parallel to the TI center horizontal graticule line.

4.1.4 Verify that the trace does not shift more than 0.5 division while switching the TI CH 1 VOLTS/DIV switch between 20

m and 2 m.

4.15 Set the TI VERTICAL MODE switch to CH 2 and adjust the TI CH 2 vertical POSITION control for a trace that is

centered on the TI center horizontal graticule line.

4.1.6 Verify that the trace does not shift more than 0.5 division while switching the TI CH 2 VOLTS/DIV switch between 20

m and 2 m.

4.2 GEOMETRY TEST

4.2.1 Set the TI controls as follows: CH 2 VOLTS/DIV switch to CH 2 AC-GND-DC switch to CH 2 POSITION control to SEC/DIV switch to

4.2.2 Set the time mark generator controls to obtain 1 ms markers. Connect the marker output through the feedthrough

termination to the TI CH 2 input connector.

4.2.3 Adjust the TI AUTO INTENSITY, AUTO FOCUS, and TRIGGER LEVEL controls to obtain a stable, well-defined

trace.

4.2.4 Adjust the TI horizontal POSITION control as necessary and verify that the displayed time marks are exactly parallel

to the TI vertical graticule lines (see Figure 1).

50 m DC fully ccw

1 ms

I I I Ifl I I

POOR GEOMETRY GOOD GEOMETRY POOR GEOMETRY

Figure 1. Geometry Displays

4.2.5 Disconnect the time mark generator and feedthrough termination from the TI.

4.3 VERTICAL AMPLIFIER DEFLECTION ACCURACY TESTS

4.3.1 Set the TI controls as follows: VERTICAL MODE switch to CH 1

CH 1 and CH 2 VOLTS/DIV switches to 2m

NAVAIR 17-2OAW-297

CH 1 AC-GND-DC switch to CH 2 POSITION control to SEC/DIV switch to

4.3.2 Connect the voltage calibrator output to the TI CH 1 input connector using coaxial cable.

4.3.3 Set the TI CH 1 VOLTS/DIV switch to the following listed positions. At each setting, obtain the corresponding

voltage calibrator output. Adjust the voltage calibrator variable amplitude control for the TI vertical deflection listed. Verify

that the voltage calibrator deflection error display is within the tolerance limits listed.

VOLTS/DIV

Switch Setting

2 m 5 m

10 m 20 m 50 m

0.1

0.2

0.5 1

2 5

Voltage

Calibrator

output

(P-P)

10 mV

20 mV 50 mV

0.1 v

0.2 v

0.5 v 1 v

2 v 5 v

10 v 20 v 50 v

Vertical

Deflection

(Divisions)

5 4

5 5 4 5 5

5 5

midrange .2 ms

Voltage Calibrator

Deflection Error

Tolerance Limits

4.3.4 Set the voltage calibrator output for minimum output.

4.3.5 Move the voltage calibrator output from the TI CH 1 input connector to the CH 2 input connector.

4.3.6 Set the TI VERTICAL MODE switch to CH 2 and repeat step 4.3.3, using the TI CH 2 VOLTS/DIV switch.

4.3.7 Adjust the voltage calibrator output controls for minimum output and disconnect it from the TI.

NAVAIR 17-2OAW-297

4.4 VERTICAL INPUT DIVIDER COMPENSATION TESTS

4.4.1 Set the TI controls as follows: CH 1 VOLTSlDIV 20 mV AC-GND-DC DC A SECIDIV .2 ms VERTICAL MODE

4.4.2 Set the voltage calibrator as follows: Mode switch HIGH AMPL PERIOD 1 ms PULSE AMPLITUDE MIN

4.4.3 Connect feedthrough termination to voltage calibrator AMPL OUTPUT HIGH or STD.

4.4.4 Connect 10: 1 probe to TI CH 1 input. Connect probe tip and ground lead to feedthrough termination.

4.4.5 Adjust voltage calibrator PULSE AMPLITUDE control and TI TRIGGER LEVEL and POSITION controls for a

stable display of approximately 3 to 5 divisions. If necessary, adjust probe compensation for the squarest corners and flattest tops possible. Verify that display is correctly compensated as shown in Figure 2.

4.4.6 Adjust the voltage calibrator PULSE AMPLITUDE to MIN. Disconnect probe from feedthrough termination and TI.

4.4.7 Set TI CH 1 VOLTS/DIV to .2.

4.4.8 Disconnect probe tip and ground lead from feedthrough termination. Connect coaxial cable to CH 1 input and

feedthrough termination.

4.4.9 Adjust the voltage calibrator PULSE AMPLITUDE control and TI TRIGGER and POSITION controls for stable 2 to

5 division display. Verify that display is correctly compensated as shown in Figure 2.

CH 1

4.4.10 Adjust the +- 10 LF Comp capacitor (C105) for the best front corner.

4.4.11 Replace the coaxial cable and feedthrough termination with the probe.

4.4.12 Adjust the voltage calibrator to produce a stable 2 to 5 division display,

4.4.13 Adjust the + 10 Input C capacitor (C104) for the best flat top.

4.4.14 Repeat steps 4.4.8 through 4.4.13 until no further improvements are noted. Add the feedthrough termination to the

coaxial cable.

4.4.15 Set the TI CH. 1 VOLTYDIV to 2 V.

4.4.16 Replace the probe with the coaxial cable.

4.4.17 Adjust the voltage calibrator to produce a stable 2 to 5 division display,

4.4.18 Adjust the + 100 LF camp capacitor (C 111) for the best front corner.

NAVAIR 17-2OAW-297

4.4.19 Replace the coaxial cable with the probe.

4.4.20 Adjust the voltage calibrator to produce a stable 2 to 5 division display.

4.4.21 Adjust the + 100 Input C capacitor (Cl 10) for the best flat top.

4.4.22 Repeat steps 4.4.16 through 4.4.21 until no further improvements are noted.

4.4.23 Adjust the voltage calibrator PULSE AMPLITUDE for a stable usable display. Verify that the display is correctly

compensated as shown in Figure 2.

4.4.24 Adjust the voltage calibrator PULSE AMPLITUDE to MIN and disconnect the coaxial cable connectors.

4.4.25 Repeat steps 4.4.1 through 4.4.23 using the TI CH 2 in place of CH 1. Verify that correct compensation is displayed

at 20 mV, 0.2 V, and 2 V settings of the CH 2 VOLTYDIV switch.

NOTE The TI CH 2 capacitors are given below: f 10 LF Comp (C205) + 10 Input C (C204) + 100 LF Comp (C211) +- 10 Input C (C210)

4.4.26 Adjust the voltage calibrator PULSE AMPLITUDE to minimum. Disconnect the feedthrough termination and

coaxial cable from the AMPL OUTPUT. Continue the calibration with the Vertical Amplifier Compensation tests, step 4.5.

CORRECT COMPENSATION

OVERCOMPENSATED OVERCOMPENSATED

Figure 2. Typical Attenuator Compensation Displays

I i iii iii i

UNDERCOMPENSATED

NAVAIR 1 I-2OAW--291

4.5 VERTICAL AMPLIFIER COMPENSATION TESTS

45.1 Set the TI as follows: CH 1 and CH 2 VOLTQDIV

TRIGGER A & B INT A SEC/DIV

4.5.2 Connect feedthrough termination to voltage calibrator FAST RISE positive-going output.

4.5.3 Connect 10: 1 probe to TI CH 2 input and probe tip and ground to feedthrough termination.

4.5.4 Set voltage calibrator mode switch to FAST RISE. Set period controls for 1 MHz.

4.5.5 Adjust the voltage calibrator PULSE AMPLITUDE for a 5 division high display. Adjust TI TRIGGER and

POSITION controls for a stable square wave.

4.5.6 Verify that no ringing occurs at leading edge of the TI displayed waveform and that the top of waveform is flat beyond

first 20 ns.

4.5.7 Adjust the voltage calibrator PULSE AMPLITUDE to MIN.

4.5.8 Disconnect probe from the TI CH 2. Connect probe to CH 1. Set the VERTICAL MODE and TRIGGER A & B INT

switches to CH 1.

4.5.9 Repeat steps 4.5.5 through 4.5.7.

4.5.10 Disconnect test setup.

20 m CH2

.05 KS

4.6 TRIGGER TESTS

4.6.1 Set the TI controls as follows: CH 1 and CH 2 VOLTWDIV switches to

SEC/DIV switch to HORIZONTAL MODE switch to

VERTICAL MODE switch to TRIGGER VAR HOLDOFF control to TRIGGER MODE switch to TRIGGER SLOPE switches to TRIGGER A & B INT switch to TRIGGER A SOURCE switch to B DELAY TIME POSITION dial

1 (1X window) .5 ms

A CH. 2

NORM (fully ccw) AUTO top position (z ) VERT MODE INT 0

NAVAIR 17-2OAW-297

4.6.2 Connect the TI PROBE ADJUST output to the TI CH 2 input connector. Verify that the TI TRIGGER LEVEL control

can be adjusted for a stable display when the CH 2 VOLTYDIV controls are adjusted for a display of 0.4 divisions.

4.6.3 Set the TI TRIGGER SLOPE switch to its bottom position (1 ). Verify that the TI TRIGGER LEVEL control can

be adjusted for a stable display.

4.6.4 Set the TI TRIGGER MODE switch to NORM and verify that the TI TRIGGER LEVEL control can be adjusted for a

stable display.

4.6.5 Set the TI TRIGGER SLOPE switch to its top position (/ ) and verify that the TI TRIGGER LEVEL control can

be adjusted for a stable display.

4.6.6 Disconnect the TI PROBE ADJUST output from the TI CH 2 input connector and connect it to the TI CH 1 input

connector. Set the TI VERTICAL MODE switch to CH 1.

4.6.7 Set the TI TRIGGER MODE switch to AUTO. Verify that the TI TRIGGER LEVEL control can be adjusted for a

stable display when the CH 1 VOLTS/DIV controls are adjusted for a display of 0.4 divisions.

4.6.8 Repeat steps 4.6.3 through 4.6.5.

4.6.9 Set TI HORIZONTAL MODE switch to B. Verify that the B trigger level control can be adjusted for a stable display

when the TI CH 1 VOLTS/DIV controls are adjusted for a display of 0.4 divisions. Set A TRIGGER MODE switch to AUTO.

4.6.10 Repeat step 4.6.3.

4.6.11 Disconnect the TI PROBE ADJUST output from the TI CH 1 input connector.

4.7 SWEEP TIME TESTS

4.7.1 Set the TI controls as follows: CH 1 VOLTFYDIV Variable control to fully cw (detent)

CH 2 VOLTSlDIV Variable control to fully cw (detent)

CH 1 VOLTS/DIV switch to .5 (1X window) SEC/DIV switch to .5 s HORIZONTAL MODE switch to

TRIGGER A MODE switch to

TRIGGER A SLOPE switch to TRIGGER A SOURCE switch to TRIGGER A EXT COUPLING switch to

4.7.2 Connect the time mark generator marker output through the feedthrough termination to the TI

CH 1 input connector. Connect the time mark generator trigger output to the TI EXT INPUT connector.

A NORM top position (z ) EXT DC f 10

NAVAIR 17-2OAW-297

4.7.3 Set the TI SEC/DIV switch and the time mark generator markers control to each of the following listed settings. At

each setting:

adjust the TI TRIGGER LEVEL control for a stable display, adjust the TI horizontal POSITION control as necessary to place the second

marker at the second vertical graticule line, adjust time mark generator variable timing control to align tenth marker with tenth vertical

graticule line (second marker should remain on second graticule line), verify % readout is 3% maximum, verify correct linearity by observing that the distance between successive

markers is equal.

NOTE

At slower sweep speeds, it may be desirable to increase the vertical sensitivity and position the bottom of the timing comb down so that only the tops of the markers are visible.

SECYDIV

Switch Setting

0.5 s

0.2 s

0.1 s 50 ms 20 ms

10 ms

5 ms 2 ms

1 ms

0.5 ms

0.2 ms

0.1 ms 50 ps 20 ps

10 us

5 CLS

0.5 ps

0.2 ps

0.1 ps

0.05 ps

Time Mark Generator

Markers Switch Setting

0.5 s

0.2 s

0.1 s 50 ms 20 ms

10 ms

5 ms

2 ms

1 ms

0.5 ms

0.2 ms

0.1 ms 50 ps 20 p

10 us

5 P 2

0.5 ps

0.2 ps

0.1 ps 50 ns

Time Mark Generator

Indication

Tolerance Limits

(Second to Tenth Markers)

f3% max.

,7 ,, 7, 11 1, 1, 7, >, >1

7. 3, ,, >1

7. 73 ,t >. 7, 9, 3,

NAVAIR 17-2OAW-297

4.7.4 Set the TI HORIZONTAL MODE switch to B. Set A TRIGGER MODE to AUTO.

4.7.5 Set the TI A SEUDIV and B SEUDIV switches and the time mark generator markers control to each of the following

listed settings. At each setting:

adjust the TI TRIGGER LEVEL control for a stable display, adjust the TI horizontal POSITION control as necessary to place the second

marker at the second vertical graticule line, adjust the time mark generator variable timing control to align the tenth marker with the tenth

vertical graticule line (second marker should remain on second graticule line), verify % readout is 3% maximum,

verify correct linearity by observing that the distance between successive

markers is equal.

NOTE

At slower sweep speeds, it may be desirable to increase the vertical sensitivity and position the bottom of the timing comb down so that only the tops of the markers are visible.

A SEC/DIV

Switch Setting

.l s

50 ms

20 ms

10 ms

5 ms 2 ms

1 ms

0.5 ms

0.2 ms

0.1 ms

50 ps

20 ps 10 ps

5 P 2 P

0.5 ps

0.2 ps

0.1 ps

B SEUDIV

Switch Setting

50 ms 20 ms

10 ms

5 ms 2 ms

1 ms

0.5 ms

0.2 ms

0.1 ms 50 c”s 20 ps

10 l4.s

5 PS 2 w

0.5 ps

0.2 ps

0.1 us

0.05 ps

Time Mark Generator

Markers Switch Setting

50 ms 20 ms

10 ms

5 ms 2 ms

1 ms

0.5 ms

0.2 ms

0.1 ms 50 ps 20 ps

10 ps

CLS

2 PS

CLS

0.5 ps

0.2 ps

0.1 us

50 ns

NAVAIR 17-2OAW-297

4.8 MAGNIPIER REGISTRATION TEST

4.8.1 Set the TI A and B SEC/DIV switches to 1 ms and the HORIZONTAL MODE switch to A. Set the time mark

generator marker control to obtain 5 ms markers.

4.8.2 Set the TI Xl0 magnifier switch to on by pulling out the knob on the center shaft of the TI SEC/DIV switch

4.8.3 Adjust the TI CH 1 POSITION control and the horizontal POSITION control as necessary to align the second time

mark with the TI center vertical graticule line.

4.8.4 Set the TI Xl0 magnifier switch to off (knob in). Verify that the second time mark does not shift more than

0.2 divisions.

4.9 MAGNIFIER ACCURACY TEST

4.9.1 Set the time mark generator marker control to obtain 1 .O ms markers and adjust the TI TRIGGER LEVEL control as

necessary to obtain a stable display.

4.9.2 Set the time mark generator controls for variable timing marker operation. Adjust the time mark generator variable timing control and the TI horizontal POSITION control as necessary to align the second time mark with the TI second vertical graticule line, and the tenth time mark to the tenth vertical graticule.

4.9.3 Without disturbing the setting of the time mark generator variable timing control, set the time mark generator marker

switch to 0.1 ms.

4.9.4 Set the TI Xl0 Magnifier switch to on (knob out).

4.95 Adjust the TI horizontal POSITION control to align the second time mark with the TI second vertical graticule line.

Verify that the distance between the second and tenth time marks is between 7.85 and 8.15 divisions.

4.9.6 Return the time mark generator from variable marker operation to fixed marker operation. Set TI X10 Magnifier

switch to OPI?

4.10 B DELAY DIAL ACCURACY AND JITTER TESTS

4.10.1 Set the TI controls as follows: VERTICAL MODE switch to CH 1

CH 1 input coupling switch to HORIZONTAL MODE switch to A SEC/DIV switch to B SEC/DIV switch to B TRIGGER LEVEL control to B DELAY TIME POSITION 1 .O

4.10.2 Connect the time mark generator output through the 50 ohm termination to the TI CH 1 input. Connect the time mark

generator trigger output to TI EXT INPUT connector.

AC B

0.2 ps

0.05 ps CW-RUN AFTER DLY

1 .oo

NAVAIR 17-2OAW-297

4.10.3 Set the time mark generator markers switch to 0.2 us.

4.10.4 Adjust the TI horizontal POSITION control so the top of the first fully displayed time marker is aligned with the

center vertical graticule line.

4.10.5 Without changing the TI horizontal POSITION control setting, adjust the B DELAY TIME POSITION dial setting

near 9.00 to align the top of the displayed time marker with the center vertical graticule line.

4.106 Verify that the TI B DELAY TIME POSITION dial indication is between 8.85 and 9.15.

4.10.7 Set the TI A SEClDIV to 0.2 ms and the TI B SEC/DIV to 50 us.

4.10.8 Set the time mark generator markers switch to 0.2 ms.

4.10.9 Repeat steps 4.10.4 through 4.10.6.

4.10.10 Set the TI B SEC/DIV switch to 0.5 us.

4.10.11 Set the time mark generator markers switch to 10 us.

4.10.12 Slightly readjust the TI B DELAY TIME POSITION dial to position a time marker within the graticule area.

4.10.13 Verify that the TI horizontal jitter on the leading edge of the displayed time marker does not exceed 1 division.

4.10.14 Disconnect the test setup.

4.11 RISE TIME TESTS

4.11 .l Set the attenuator to 30 dB and connect the pulse generator pulse output connector through the attenuator and

feedthrough termination to the TI CH 1 input connector. Connect the feedthrough termination directly to the TI CH 1 input

connector.

4.11.2 Set the TI controls as follows: CH 1 and CH 2 VOLTS/DIV switches to

VOLTS/DIV Variable controls (both channels) to

HORIZONTAL MODE switch to

SEC/DIV switch to SEC/DIV Variable control to SEC/DIV X10 Magnifier switch to TRIGGER MODE switch to TRIGGER SOURCE switch to

4.11.3 Adjust the attenuator controls for a TI display amplitude of 5 divisions. Adjust the TI TRIGGER LEVEL, vertical

POSITION, and horizontal POSITION controls as necessary for a stable display.

to align the leading edge of the pulse to the center horizontal vertical graticule line.

2m fully cw (in detent) A

.5 ps

fully cw (in detent)

off (knob in)

NORM

INT

Adjust the TI horizontal POSITION control

NAVAIR 17-2OAW-297

4.11.4 Set the TI SEUDIV switch to .05 us and the SEUDIV Xl 0 magnifier switch to on (knob out).

4.11.5 Adjust the TI vertical and horizontal POSITION controls as necessary and measure the TI rise time between the 10%

and 90% amplitude points. Verify that the rise time does not exceed 7 .O ns.

4.1 I .6 Move the feedthrough termination from the TI CH 1 input connector to the CH 2 input connector and set the TI

VERTICAL MODE switch to CH 2. Adjust the TI vertical POSITION control for a centered display.

4.11.7 Adjust the attenuator controls for a TI display amplitude of 5 divisions.

4.11.8 Adjust the TI vertical and horizontal POSITION controls as necessary and measure the TI rise time between the 10%

and 90% amplitude points. Verify that the rise time does not exceed 7.0 ns.

4.11.9 Set the TI CH 1 and CH 2 VOLTS/DIV switches to 20 m.

4.11 .lO Adjust the attenuator controls for a TI display amplitude of 5 divisions.

4.11.11 Adjust the TI vertical and horizontal POSITION controls as necessary and measure the TI rise time between the

10% and 90% amplitude points. Verify that the rise time does not exceed 5.8 ns.

4.11.12 Move the feedthrough termination from the TI CH 2 input connector to the TI CH 1 input connector.

4.11 .13 Set the TI VERTICAL MODE switch to CH 1.

4.11.14 Repeatsteps4.11.10and4.11.11.

4.11.15 Disconnect the test setup.

4.12 COMMON-MODE REZJECTION TEST

4.12.1 Set the TI controls as follows: VERTICAL MODE switch to VERTICAL MODE switch to

CH 1 and CH 2 VOLTSJDIV switches to AC-GND-DC switches (both channels) to

INVERT pushbutton

SECYDIV switch to SEUDIV X10 Magnifier switch to

TRIGGER MODE switch to

4.12.2 Connect the dual BNC connector outputs to the TI CH 1 and CH 2 input connectors. Connect the signal generator

output through the feedthrough termination to the dual BNC connector input.

CHl ALT 20 mV DC released (out)

50 p off (knob in) AUTO

NAVAIR 17-2OAW-297

412.3 Adjust the signal generator frequency and amplitude controls for 50 kHz and a TI display amplitude of 6 divisions.

4.12.4 Set the TI VERTICAL MODE switch to BOTH and adjust the TI CH 1 and CH 2 POSITION controls so that both

displays are superimposed and positioned on the center 6 divisions.

4.125 Set the TI VERTICAL MODE switch to ADD and depress the INVERT pushbutton. Adjust the TI CH 1 and CH 2

VOLTS/DIV Variable controls for a minimum display amplitude.

4.12.6 Set the signal generator frequency controls for 10 MHz and verify that the TI display amplitude is 0.6 divisions or

less.

4.12.7 Adjust the signal generator controls for minimum output voltage and disconnect the test setup.

4.13 X-AXIS ACCURACY TEST AND PROBE ADJUST SIGNAL TEST

4.13.1 Set the TI controls as follows: VERTICAL MODE switch to

CH 1 and CH 2 VOLTS/DIV Variable controls to CH 1 VOLTS/DIV switch to

SEC/DIV switch to

4.13.2 Connect the voltage calibrator output to the TI CH 1 OR X input connector, and set the voltage calibrator controls as

necessary for an output of 0.500 V p-p (176.77 mV rms) at 1 kHz.

4.13.3 Adjust the TI horizontal POSITION control as necessary and verify that the length of the trace on the TI display is

between 4.75 and 5.25 divisions.

4.13.4 Disconnect the voltage calibrator from the TI.

4.13.5 Connect the TI PROBE ADJUST output signal to’the TI CH 1 OR X input connector.

4.13.6 Adjust the TI horizontal POSITION control as necessary. Verify that the length of the trace on the TI display is

between 4.0 and 6.0 divisions.

4.13.7 Set the TI SEC/DIV switch to I ms.

4.13.8 Unless other measurements are to be performed, reduce the output of all the equipment to minimum, set all power

switches to off, and disconnect the test setup.

CH 1 fully cw (in detent)

X-Y

(18 blank) 17

CALIBRATION CHECKLIST

TEST 1NST (S)

Tektronix 2215 Oscilloscope

NAVAIR 17-2OAW-297

PROC. NO.

NA 17-2OAW-297

MFG.

MODEL

SER. NO.

,t ,I

4.00

7, 1, 7, 0.1 5.00 I, 1, ,,

7. ,, 0.5 4.00 .I 7, 1 5.00

0.2 I, 7, 13 97

3, 11 2 7, 1.

Page 1 of 5

NAVAIR 17-2OAW-297

TEST INST (S)

PROC. NO.

PROCEDURE PROCEDURE , MEASURED VALUES , MEASURED VALUES

STEP STEP

NO. NO. (1)

(1)

4.3.6 11

4.4.5 1 CHl

4.4.5 CHl

4.4.9

4.4.23

4.4.25

Tektronix 2215 Oscilloscope

NA 17-2OAW-297

FUNCTION TESTED FUNCTION TESTED

MFG. MODEL

NOMINAL NOMINAL

(2) (2)

CH2 CH2 5 5 4.00 4.00

10 1 5.00 5.00

20 mV/DIV I -

20 mV/DIV I I

CH2 20 mV/JXV

0.2 vmv 2 vmv

0.2 VIDIV

I -

FIRST RUN SECOND RUN OF FIRST RUN SECOND RUN OF

(3) (3) (4) (4) (5) (5)

1 ck0 1

ck( 1

1 ck0 t

- 1 ck0 1

- I

4.5 Vertical Amplifier Compensatior Tests

4.5.6

CHl

4.5.9 CH2

Ringing Flatness Ringing Flatness

ck( ) ck( )

SER. NO.

OUT OUT

CALIBRATION TOLERANCES CALIBRATION TOLERANCES

TOL TOL

(61

(6)

(7) (7)

+3% Maximum +3% Maximum

Correct Comuensation

I I

Correct Compensation

II ”

Correct Compensation

4.6.4

4.6.5

I Trigger Tests

1 CH2 AUTO (/-I -

NORM

(Y) ”

I I I

0.5 s 7, 1.

1 ck0 1

ck( )

I I StableDisplay

I I

8.00 +3%

I I

Page 2 of 5

CALlBRATlON CHECKLIST

TEST INST (S)

Tektronix 22 15 Oscilloscope

NAVAIR 17-2OAW-297

PROC. NO.

PROCEDURE

STEP

NO. (1)

4.7

4.7.3 ,,

NA 17-2OAW-297

FUNCTION TESTED

(2)

Sweep Time Tests A SEC/DIV

0.1 ms

50 ”

SER. NO.

NOMINAL FIRST RUN SECOND RUN OF CALIBRATION TOLERANCES

(3 (4) (5)

(Div)

MEASURED VALUES . OUT

TOL

(6)

(%I

(7)

(% Maximum)

8.00 +3 %

7. I,

7, 0.05 ” 3, ,1 I,

4.7.5 7,

Linearity B SEUDIV

50 20 ” 7,

(Div)

8.00

ck( ) (So)

Equal Spacing (% Maximum)

1, 10 ” 1, ,I ,, 5 ” 77 I,

I I I

I I

+3%

Page 3 of 5

NAVAIR 17-2OAW-297

TEST INST (S)

PROC. NO.

PROCEDURE

STEP

NO. (1)

4.7.5 I,

77 ,>

Tektronix 22 15 Oscilloscope

NA 17-2OAW-297

FUNCTION TESTED NOMINAL

(2)

B SEUDIV

2 ms

7, (1 ,,

0.5 ”

MFG. MODEL

MEASURED VALUES _ OUT

FIRST RUN SECOND RUN OF CALIBRATION TOLERANCES

(3)

(Div)

(4) (5)

(%I

TOL

(6)

8.00 53%

7, 1,

SER. NO.

(7)

(% Maximum)

Page 4 of 5

CALIBRATION CHECKLIST

TEST INST (S)

Tektronix 2215 Oscilloscope

NAVAIR 17-2OAW-297

PROC. NO.

NA 17-2OAW-297

MFG. MODEL SER. NO.

Page 5 of 5

Tektronix 2215 Data Sheet

Specifications and Main Features

Frequently Asked Questions

User Manual