Tektronix 2430A Data Sheet

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T.O. 33K3-4-1347-l

TECHNICAL MANUAL

CALIBRATION PROCEDURE

FOR

OSCILLOSCOPE

2430A

(TEKTRONIX)

Distribution Statement - Distribution authorized to U. S. Government agencies and their contractors for official use or for administrative or operational purposes only, 30 August 1988. Other requests for this document shall be referred to AFMETCAL Detachment l/MLLW, 813 Irving-Wick Dr W, Suite 4M, Heath, OH 43056-6116.

Destruction Notice - For unclassified, limited documents, destroy by any method that will prevent disclosure of the contents or reconstruction of the document.

Published under Authority of the Secretaty of the Air Force

30 JULY 1998

CHANGE 2 - 30 JULY 2001

T.O. 33K3-4-1347-l

Date of issue for original and changed pages are:

INSERT LATEST CHANGED PAGES. DESTROY SUPERSEDED PAGES.

NoTE:

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USAF

..I-.. _-._.. l-.-... _.- ._--.x- “. 1-1

1 CALIBRATION DESCRIPTION:

T.O. 33K3-4-1347-1

OSCILLOSCOPE

2430A

(TEKTRONIX)

Table 1.

Test Instrument (TI) Characteristics

Performance Specifications

Calibrator Range: 0.4 V p-p

Accuracy: +l%

Vertical Deflection

Range: 2 mV to 5 Vldiv

& Volts Cursors

Cursor Accuracy: +(2% + 0.04 div)

Vertical Bandwidth Range: DC to 1.50 MHz

Accuracy: down not more

than3dB

Triggering Range: INT A, 1 div @ 150 MHz;

INT B, 2 div @ 150 MHz; EXT A, 50 mV @ 150 MHz; EXT B. 100 mV @ 150 MHz

Accuracy: min

Test

Method

Compared against a

standard voltage

Checked with a standard

voltage and with cursors

Apply a constant amplitude signal while changing frequency.

Vertical deflection

compared against deflection at a

referenced frequency

Apply minimum signals and check for stable display

Horizontal Sweep (A&B)

Time Cursors

Range: 5 ns to 0.5 sldiv

Accuracy: il% Range: +5 div from CRT center Accuracy: +l%

Checked with standard time mark signals

Checked by aligning cursors with CRT graticule lines

Change 2 1

T.O. 33K3-4-1347-1

2 EOUIPMENT REOUIREMENTS:

Noun

2.1 CALIBRATION GENERATOR

2.2 LEVELED SINE WAVE GENERATOR

2.3 TERMINATION

2.4 DUAL-INPUT COUPLER

2.5 TIME MARK GENERATOR

2.6 DC VOLTAGE STANDARD

Minimum Use Specifications

Range: 10 mV to 20 V p-p

OtoSVDC Accuracy: &25% Range: 50 kHz to 150 MHz

Accuracy: +_5% Range: 50 &‘J Accuracy: N/A

Range: N/A Accuracy: N/A Range: 0.2 ps to 0.5 s Accuracy: 0.02% Rauge: 2V Accuracy: 0.1%

Calibration

Equipment

Tektronix PG 506 P/O F5030Al

Tektronix SG 503

Tektronix

01 l-0049-01

Tektronix

067-0525-01

Tektronix TG 501 P/O F5030Al

Fluke

5440

SubItem

Fluke

332D

2.7 ATTENUATOR

Range: As required

As available

Accuracy: N/A

*2.8 OSCILLOSCOPE

CALIBRATION

Range: Same as 2.1,2.2, and 2.5

Tektronix

F7529A2

SYSTEM

Accuracy: Same as 2.1,2.2, and 2.5

*2.9 SOFTWARE

Range: N/A

88M-F7529A21 SCAL-TOOl-OOA

Accuracy: N/A

I* Required for Automated calibration

3 PRELIMINARY OPERATIONS:

3.1 Review and become familiar with entire procedure before beginning Calibration Process.

T.O. 33K3-4-1347-1

Unless otherwise designated, and prior to beginning the Calibration Process, ensure that all test equipment voltage and/or current outputs are set to zero (0) or turned off, where applicable. Ensure that all equipment switches are set to the proper position before making connections or applying power.

3.2 Connect the TI and calibration equipment to a 115 VAC, 60 Hz power source. Set all POWER switches to ON and allow a 10 minute warm-up period.

3.3 After 10 minute warm-up period run the SELF CAL routine as follows: Press the MENU OFF/EXTENDED FUNCTIONS button once or twice (two presses are necessary if any menu is presently displayed, one press if no menu is displayed) to display the EXTENDED FUNCTIONS menu. Press the menu button labeled CAL/DIAG. Press menu button labeled SELF CAL.

3.4 The SELF CAL routine will take approximately 10 seconds and RUNNING will be displayed in the lower

right corner of the CRT during this time.

3.5 After successful completion of the SELF CAL routine, RUNNING will disappear from the TI CRT and PASS will be displayed above the SELF CAL menu button label. Press the MENU OFF/EXTENDED FUNCTION

button to return the TI to the control settings in effect before SELF CAL was initiated.

3.6 If SELF CAL routine is not successful, the EXTENDED DIAGNOSTICS menu will be displayed with accompanying error messages. In this case, repeat SELF CAL routine. If the TI displays the EXTENDED

DIAGNOSTICS menu again, refer to service manual for further instructions.

3.6.1 The TI may be calibrated using calibration software CPIN # 88M-F7529A2/SCAL-TOOl-OOA. This will also

require using the F7529A2 Oscilloscope Calibration System. Verify latest version of software, as per

COMPENDIUM 80-l-88 or Q016.-110-WK-GOl.

3.7 Perform the INITIAL SETUP as follows:

NOTE

Select means to press the appropriate front panel button to obtain the stipulated

menu on the CRT screen. Set, when preceded by a menu selection, indicates

the stipulated menu function should be turned ON or OFF by pressing the appropriate menu button. The function will appear underlined in the menu when turned ON, not underlined when turned OFF. Control settings not listed do not affect the procedure.

Select

Push

Select Set

Select CH I COUPLINGiINVERT

PRGM INIT PANEL

TRIGGER MODE AUTO

VERTICAL MODE CH2

T.O. 33K3-4-1347-1

Set 50 R ON/OFF COUPLING ON Select

Set

3.7.1 Press the A/B TRIG button to enable the B Trigger System.

3.7.2 Select TRIGGER MODE to display B TRIG MODE menu and set TRIG AFTER ON. Press the A/B TRIG switch to return to the A Trigger System.

3.7.3 Select STORAGE ACQUIRE and set REPEAT ON/OFF to ON. Repeatedly press the menu switch labeled AVG until a 16 appears above the AVG. Repeatedly press the ENVELOPE switch until a 16 appears above ENVELOPE. Set NORMAL back on.

3.7.4 Select PRGM to display the main SEQUENCER menu. Press SAVE in the main menu to display the SAVE Sequence menu.

3.7.5 Use the arrows under ROLL-CHARS to create a front-panel setup label (use FPNL for the label).

3.7.6 Use the up or down arrow switches to select the first letter of the label.

3.7.7 When the first letter is displayed, depress CURSOR <>.

pressing the up/down arrows to select FPNL, then pressing DELETE.

CH 2 COUPLING/INVERT

50 R ON/OFF COUPLING ON A SEC/DIV 500 ps

NOTE

Saving the FPNL sequence will cause an error if a FPNL sequence is already stored. Clear the previous sequence by selecting PRGM, pressing DELETE,

3.7.8 Repeat steps 3.7.6 and 3.7.7 until FPNL is spelled out, then depress the menu SAVE switch. NOTE

In the next step, Trigger Mode is set back to AUTO LEVEL. (AUTO LEVEL was initially turned off to make the front-panel changes in the previous steps faster to set). Throughout the remainder of this procedure, the TI is switched to AUTO LEVEL when the initial setup is recalled, providing automatic triggering of displays. If preferred, you can switch to AUTO mode and use

INIT @ 50 and/or the TRIGGER LEVEL control to trigger manually. Where

AUTO mode is the required mode that mode is specified in the procedure.

Occasionally, AUTO LEVEL may fail to find a stable trigger if you connect the trigger signal to the front panel between autolevel cycles; if so, push INIT @ 50 to obtain the triggered display.

3.7.9 Depressing the menu switch saves the label for the sequence and displays the message SETUP CONTROLS

PUSH PRGM to CONTINUE. Press Trigger MODE and select AUTO LEVEL. DO NOT CHANGE ANY OTHER FRONT-PANEL SETTINGS AT THIS TIME.

3.7.10 Push PRGM button and then push SAVE SEQ to store the sequence under the label FPNL.

3.7.11 Later in the procedure when instructed to recall the initial Front-Panel setup, perform the following steps:

3.7.11.1 Depress the PRGM to display the main SEQUENCER menu.

3.7.11.2 Depress the RECALL in the main menu to display the menu used for recalling the front-panel setup.

4 Change 1

T.O. 33K3-4-1347-l

4.2.21 The TI B TRIGGER LEVEL display must indicate within the corresponding limits listed in the

- Peak column of Table 2.

4.2.22 Press the TI TRIGGER SLOPE button to select + SLOPE.

4.2.23 Set the HORJZ MODE to A and press A/l3 TRIG switch to trim on the A TRIGGER system. Press TRIGGER MODE and set AUTO LEVEL to ON.

4.2.24 Repeat steps 4.2.2 through 4.2.23 for the remaining values listed in Table 2.

Table 2.

cursor

Range

Applied Limits (V)

+ Peak (V)

- Peak (V)

2mV 10m 5mV

1OmV

20m

50m 20 mV .l 50 mV

.5 .2 1 .5

2 5

20 17.8 to 22.2

9.72 to 10.28 m

19.40 to 20.60 m

48.60 to 51.40 m

97.20 to 102.80 m

194.0 to 206.0 m

486.0 to 5 14.0 m

0.972 to 1.03

1.94 to 2.06

4.86 to 5.14

9.72 to 10.28

19.4 to 20.6

8.5 to 11.5 m

17.2 to 22.8 m

44.4 to 55.6 m

89.6 to 110.4 m

178.0 to 222.0 m

448.0 to 552.0 m

0.896 to 1.10

1.8 to 2.2

4.5 to 5.5

9.0 to 11.0

1.2 to -1.2 m

2.2 to -2.2 m

4.0 to -4.0 m

7.2 to -7.2 m

16.0 to -16.0 m

36.0 to -36.0 m

0.072 to -0.072

0.160 to -0.160

0.360 to -0.360

0.710 to -0.710

1.6 to -1.6

4.2.25 Set tbe Calibration Generator for a minimum output. Disconnect from the TI CH 1 Input and connect to the CH 2 Input

4.2.26 Set the TI controls as follows: Select

Set Select

Set

VERTICAL MODE CHl OFF

VERTICAL MODE CH2 ON

4.2.27 Repeat steps 4.2.2 through 4.224 utilizing CH 2 controls.

T.O. 33K3-4-1347-1

4.2.28 Set the Calibration Generator for a minimum output and disconnect from the TI CH 2 Input. Set TI CH 2 V/DIv to 1 v.

4.2.29 Adjust the TI CURSOR/DELAY control to align the moveable cursor to the third graticule line above center screen.

4.2.30 Press CURSOR SELECT to enable the alternate cursor.

4.2.31 Adjust the TI CURSOR/DELAY control to align the moveable cursor to the third graticule line below center screen.

14.2.32 The TI CURSOR VOLTS READOUT

must

indicate 5.84 to 6.16 V.

4.3 VERTICAL BANDWIDTH CALIBRATION:

4.3.1 Recall the TI Initial Front-Panel setup, labeled FPNL. Make the following changes to the TI Front-Panel setup:

Select

Set Set

VERTICAL MODE CH2 OFF

CH 1 VOLTS/DIV 2mV

Set A SEC/DIV lops

4.3.2 Connect the Leveled Sine Wave Generator (2.2) to the CH 1 Input.

4.3.3 Set the Leveled Sine Wave Generator frequency controls to 50 l&Iz and adjust the output controls for 6 div of Vertical deflection on the TI CRT. Use attenuator(s) as required.

4.3.4 Set the TI A SEC/DIV to 5 ns.

4.3.5 Increase the Leveled Sine Wave Generator frequency to 150 MHz.

4.3.6 The TI Vertical display must be 4.2 div or more.

4.3.7 Disconnect the Leveled Sine Wave Generator from the TI CH 1 Input and connect to the CH 2 Input.

4.3.8 Make the following changes to the Front-Panel settings: Select VERTICAL MODE

Set CHl Select

Set Set

Set

VERTICAL MODE CH2

CH 2 VOLTS/DIV

A SEC’DIV

OFF

2mV

lops

4.3.9 Repeat steps 4.3.3 through 4.3.6 utilizing appropriate CH 2 controls.

4.3.10 Disconnect the Leveled Sine Wave Generator from the TI CH 2 Input.

8 Change 2

CALIBRATION PERFORMANCE TABLE (Cuti.)

T.O. 33K3-4-1347-1

4.2 VERTICAL CURSORS CALIBRATION: Range Wolts/Div> Auplied (Div)

4.3 VERTICAL BANDWIDTH CALIBRATION: (both channels) Range

DC to 150 MHz

4.4 TRIGGERING CALIBRATION: (A & B) Range

INTA INT B EXT A

BXTB

4.5 HORIZONTAL SWEEP TIME CALIBRATION: (A & B)

Range gmwlxv)

(Cont.)

-3 and +3

Ap&ed

50 kHz

150 MHz

Au&d

1.0 div

2.0 div @ 150 MHz 50 mV @

1OOmV @ 150MH.z

Applied iMarker

@ 150 MHz

150 MHz

Delta Readout Limits Cv)

5.84 to 6.16

Limits 6 div (reference)

4.2 div or more

Limits stable display

Limits (divisions between

3rd & 9th Markers)

-2 P

-5 P

1cLs

2 P

5w 5cLs

10 P

20 P 50 ps

.l ms .l ms .2 ms

5 ms

-2 I.ls .5 w

1 PS

2 CLS

lops

20 j..ls

50 ps

.2 ms

1 ms

5ms

5.94 to 6.06

5.94 to 6.06 .5 ms .5

5.94 to 6.06 lms

5.94 to 6.06 2ms 2ms

5.94 to 6.06

10 ms

10ms

5.94 to 6.06 Change2 13

T.O. 33K3-4-1347-1

CALIBRATION PERFORMANCE TABLE

4.5 HORIZONTAL SWEEP TIME CALIBRATION: (A & B)

Range JTIME/DIV)

20 ms 50

.l s

.2 s

.5 s

4.6 CURSOR READOUT CALIBRATION: SECYDIV setting

.5msX6div

Applied

(Marker)

20 ms

50 ms

.l s .2 s .5 s

(Cont.)

Limits

(divisions between 3rd & 9th Markers)

5.94 to 6.06

Limits (readout)

2.7900 to 3.0300 ms

14 Change2

Tektronix 2430A Data Sheet

Specifications and Main Features

Frequently Asked Questions

User Manual