Fluke Calibration 9500B Use and care manual

November 2019
© 2019 Fluke Corporation. All rights reserved. Specifications subject to change without notice.
All product names are trademarks of their respective companies.
9500B
High Performance Oscilloscope Calibrator
Calibration Manual

LIMITED WARRANTY AND LIMITATION OF LIABILITY
Each Fluke product is warranted to be free from defects in material and workmanship under normal use and
service. The warranty period is one year and begins on the date of shipment. Parts, product repairs, and
services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of
a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in
Fluke's opinion, has been misused, altered, neglected, contaminated, or damaged by accident or abnormal
conditions of operation or handling. Fluke warrants that software will operate substantially in accordance
with its functional specifications for 90 days and that it has been properly recorded on non-defective media.
Fluke does not warrant that software will be error free or operate without interruption.
Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers
only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is
available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the
applicable international price. Fluke reserves the right to invoice Buyer for importation costs of
repair/replacement parts when product purchased in one country is submitted for repair in another country.
Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair,
or replacement of a defective product which is returned to a Fluke authorized service center within the
warranty period.
To obtain warranty service, contact your nearest Fluke authorized service center to obtain return
authorization information, then send the product to that service center, with a description of the difficulty,
postage and insurance prepaid (FOB Destination). Fluke assumes no risk for damage in transit. Following
warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke
determines that failure was caused by neglect, misuse, contamination, alteration, accident, or abnormal
condition of operation or handling, including overvoltage failures caused by use outside the product’s
specified rating, or normal wear and tear of mechanical components, Fluke will provide an estimate of repair
costs and obtain authorization before commencing the work. Following repair, the product will be returned to
the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges
(FOB Shipping Point).
THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE
FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR LOSSES,
INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or
limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not
apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court or other
decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any other
provision.
Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
ООО «Флюк СИАЙЭС»
125167, г. Москва,
Ленинградский проспект дом 37,
корпус 9, подъезд 4, 1 этаж
11/99

i
Table of Contents
Title Page
Introduction ........................................................................................................... 1
Contact Fluke Calibration Calibration................................................................... 1
Safety Information................................................................................................. 2
Product Use ........................................................................................................... 2
Specifications ........................................................................................................ 2
Routine Maintenance............................................................................................. 2
General Cleaning............................................................................................... 2
Air Intake Filter................................................................................................. 2
Removing the Top Cover.............................................................................. 3
Top Guard Shield and Calibration Seal ........................................................ 3
Removing the Filter Element........................................................................ 3
Cleaning the Filter Element .......................................................................... 3
Refitting the Filter Element .......................................................................... 4
Refitting the Top Cover ................................................................................ 4
Replacement Parts ........................................................................................ 4
Firmware Upgrade ............................................................................................ 4
Introduction................................................................................................... 4
Procedure ...................................................................................................... 5
Active Heads................................................................................................. 7
Model 9500B Test and Selftest ............................................................................. 7
Types of Tests ................................................................................................... 7
Test Mode ..................................................................................................... 7
Base, Heads, All and Fast Selftest .................................................................... 8
Aborting the Selftest ..................................................................................... 9
Selftest Runs to Completion ......................................................................... 10
Viewing the Test Results .............................................................................. 11
Printing the Test Results............................................................................... 12
Selftest at Power-On ......................................................................................... 12
Interface Test..................................................................................................... 13
Access to Interface Tests .............................................................................. 13
Display Memory Checks .............................................................................. 14
Keyboard Checks.......................................................................................... 15
Display Checks ............................................................................................. 16
Memory Card Checks ................................................................................... 17
Tracker Ball Checks...................................................................................... 21
Printer Checks............................................................................................... 22

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Printing Selftest Results ........................................................................................ 23
Introduction....................................................................................................... 23
Parallel Port (Rear Panel).................................................................................. 23
Printing Setup.................................................................................................... 24
Printer Type .................................................................................................. 24
Data Formatting ............................................................................................ 25
Results Printout ................................................................................................. 25
Error Reporting Subsystem ................................................................................... 25
Error Detection ...................................................................................................... 25
Error Messages ...................................................................................................... 26
System Trip Errors ............................................................................................ 26
Recoverable Errors............................................................................................ 26
Type of Errors............................................................................................... 26
Error Reporting............................................................................................. 26
Command Errors (CME) .............................................................................. 27
Execution Errors (EXE)................................................................................ 28
Query Errors (QYE)...................................................................................... 28
Device-Dependent Errors (DDE).................................................................. 29
Device-Dependent Errors Reported only Locally on the Front Panel
Screen........................................................................................................ 29
Device-Dependent Errors Reported only Remotely via the IEEE-488
Interface .................................................................................................... 30
Device-Dependent Errors Reported both Locally and Remotely ................. 31
Verification............................................................................................................ 36
Need for Verification............................................................................................. 36
Factory Calibration and Traceability................................................................. 36
Verification on Receipt from the Factory ......................................................... 36
Verification after User-Calibration ................................................................... 36
Equipment Requirements ...................................................................................... 36
Interconnections .................................................................................................... 37
Verification Points................................................................................................. 37
Specification Limits............................................................................................... 37
Verification Procedure........................................................................................... 37
9500B Mainframe Verification by Functions........................................................ 37
Verifying the DC/Square Function: DC Voltage .............................................. 38
Verifying the DC/Square Function: Square Voltage......................................... 42
Verifying the LF Sine Voltage Function........................................................... 45
Verifying the Time Markers Function .............................................................. 48
Verifying the Load Resistance Measurement Function .................................... 50
Verifying the Pulse Width Function ................................................................. 53
9510/9530/9550/9560 Head Verification by Functions ........................................ 54
Verifying the Leveled Sine Function: LF Gain................................................. 55
Verifying the Leveled Sine Function: Flatness ................................................. 58
Verifying the Edge Function............................................................................. 65
Verifying the Load Capacitance Measurement Function (Ε)............................ 70
Calibration ............................................................................................................. 74
9500B Mainframe Calibration and Active Head™ Calibration ............................ 74
Mainframe Unit Calibration .............................................................................. 74
Active Head Calibration.................................................................................... 75
Other Functions................................................................................................. 75
MainframeUnit Manual Calibration................................................................. 76
The Model 9500B Calibration Mode..................................................................... 76
Mode Selection ................................................................................................. 77
'Mode' Key .................................................................................................... 77
'Mode Selection' Screen................................................................................ 78

Contents (continued)
iii
Selection of Calibration Mode .......................................................................... 78
Calibration Enable Switch ............................................................................ 78
Password ....................................................................................................... 79
Calibration Mode Display............................................................................. 79
Calibration Mode Screen Softkeys ............................................................... 80
Special Calibration ............................................................................................ 80
Selecting Special Calibration........................................................................ 80
When to Characterize.................................................................................... 81
How to Characterize ..................................................................................... 81
Form of Characterization .............................................................................. 81
Special Cal: 'Adjust FREQ' ............................................................................... 82
When to Adjust ............................................................................................. 82
Equipment Requirements.............................................................................. 82
Interconnections............................................................................................ 83
9500B and Counter Setup ............................................................................. 83
Sequence of Operations ................................................................................ 83
Mainframe Standard Calibration (BASE CAL) ................................................ 84
Function Selection ........................................................................................ 84
Cal Mode Function Screens.......................................................................... 85
‘Hardware Configurations'............................................................................ 86
'Target Calibration Values' ........................................................................... 86
Overview of Calibration Operations ................................................................. 86
Standard Calibration — Basic Sequences ............................................................. 88
Aim of Calibration........................................................................................ 89
General Calibration Process.......................................................................... 89
Target Selection Screen — Selecting Hardware Configurations ...................... 89
Waveform Selection ..................................................................................... 90
Hardware Configurations.............................................................................. 90
Channel Selections........................................................................................ 90
Retained Channel Memory ........................................................................... 91
Default' or 'Saved' Targets ............................................................................ 91
The Adjustment Screen ..................................................................................... 91
Setting Target Values.................................................................................... 91
Selecting Default Calibration Targets........................................................... 92
Modifying a Calibration Target .................................................................... 92
Calibrating the Model 9500B at Target Values ................................................ 93
Adjust Output Amplitude.............................................................................. 93
Target Selection ............................................................................................ 94
'RESET CAL POINT'................................................................................... 95
Standard Calibration of AC Functions.............................................................. 95
Output Frequency Synthesis ......................................................................... 95
Changing the Output Frequency of Target Calibration Points ..................... 95
Exit from Base Calibration - Cal Date and Cal Due Date................................. 96
Exit: Mode Key — Warning Screen............................................................. 97
Exit Only....................................................................................................... 97
Update the Date Stamp on a Certificate........................................................ 97
Setting the Cal Due Date and Advance Warning Period .............................. 98
Front Panel Base Calibration by Functions ........................................................... 99
Introduction....................................................................................................... 99
Summary of Calibration Process....................................................................... 100
General Procedure......................................................................................... 100
Sequencing Calibrations ............................................................................... 102
DC/Square — DC Voltage Calibration............................................................. 103
DC/Square — Square Calibration..................................................................... 107
LF Sine Voltage Calibration ............................................................................. 111

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Load Resistance Measurement Calibration....................................................... 115
9510/9530/9550/9560 Head Calibration Procedures............................................. 118
Levelled Sine Function: LF Gain...................................................................... 118
Levelled Sine Function: HF Calibration ........................................................... 120
Calibrating the Edge Function .......................................................................... 128
Calibrating the Timing Markers (9510 only) .................................................... 140
Load Capacitance Function Calibration (9510 and 9530 only) ........................ 141
50 Ω/ 1 MΩRatio Calibration ......................................................................... 142
Exit from Head Calibration............................................................................... 144

1
Introduction
The Model 9500B is a state-of-the-art calibrator offering oscilloscope test and calibration
capabilities from a single source, providing wide functionality (shown in Figure 1).
(Variant 9500B/1100 is described—for other variants, refer to the 9500B Extended
Specifations. See Specifications.)
Erw001
Figure 1. General View of Model 9500B with an Active Head
Contact Fluke Calibration Calibration
To contact Fluke Calibration Calibration, call one of the following telephone numbers:
•Technical Support USA: 1-877-355-3225
•Calibration/Repair USA: 1-877-355-3225
•Canada: 1-800-36-FLUKE (1-800-363-5853)
•Europe: [phone]
•Japan: [phone]
•Singapore: [phone]
•China: [phone]
•Brazil: [phone]
•Anywhere in the world: [phone]

9500B
Calibration Manual
2
To see product information and download the latest manual supplements, visit Fluke
Calibration Calibration’s website at www.flukecal.com.
To register your product, visit http://flukecal.com/register-product.
Safety Information
General Safety Information is located in the printed Safety Information document that
ships with the Product. It can also be found online at www.flukecal.com. More specific
safety information is listed where applicable.
Product Use
User instructions for Product operation are located in these manuals at
www.flukecal.com:
•9500B Operators Manual
•9500B Users Guide
Specifications
Safety Specifications are located in the Safety Specifications section of the 9500B Safety
Sheet. Complete specifications are at www.flukecal.com. See the 9500B Extended
Specifications.
Routine Maintenance
General Cleaning
WWarning
To prevent fire, explosion, or personal injury, disconnect the
power line cord before cleaning.
Remove dust from the top cover using a soft brush (do not use a cloth unless it is
lint-free). Keep the controls clean using a soft, lint-free cloth, dampened with a non-toxic,
noncorrosive detergent. The display screen should be cleaned using a soft, lint-free cloth,
dampened with an anti-static cleanser. Avoid extreme pressure on the face of the screen
and do not spray the screen directly.
Air Intake Filter
WWarning
To prevent fire, explosion, or personal injury, disconnect the
power line cord before removing any covers.
The internal airflow is powered by an axial fan which draws cooling air through the
interior (directed mainly through the RF module) to be exhausted on the left side via
holes in the cover. Replacement air is drawn into the instrument through holes in the right
side of the top cover, then through a 20 ppi (pores per inch) reticulated filter. This filter is
accessed by removing the top cover.

High Performance Oscilloscope Calibrator
Routine Maintenance
3
Once the cover is removed, holes can be seen in the chassis assembly right side, with the
reticulated filter located over these holes, attached by four black nylon snap rivets
through four holes to the chassis assembly.
Inspect and clean the filter element by vacuuming at intervals of no more than 90 days.
Remove the filter for thorough cleaning at least once per year, immediately prior to
routine calibration of the unit.
Removing the Top Cover
WWarning
To prevent fire, explosion, or personal injury, disconnect the
power line cord before removing any covers.
The side edges of the top cover are located in slots in both side extrusions, and secured to
the rear panel by two screws. A solid plastic block protects each of the rear corners.
To access the filter element, remove the top cover as follows:
1. Release the four screws securing the two rear-corner blocks and remove the
blocks.
2. Release the two screws securing the top cover to the rear panel.
3. Pull the top cover to the rear to clear the front bezel, then lift off to the rear.
Top Guard Shield and Calibration Seal
WCaution
With the cover removed, a 'Calibration seal' can be seen
covering a countersunk screwhead on the front of the top guard
shield. The seal is set in position following a calibration of the
instrument, so that removal of the guard shield can be detected.
The calibration seal must NOT be broken unless the guard
shield is to be removed for Authorized work inside the chassis
assembly.
Removal of the guard shield will compromise the traceable
calibration of the instrument, and a full recalibration of the
9500B will be required. If removal of the guard shield is
authorized, take care to heed the WARNING printed on it next to
the XW symbols.
Removing the Filter Element
The filter is removed as follows:
Carefully lever out the center pin of each of the four black nylon snap rivets and pull out
the snap latches. Lift off the filter element.
Cleaning the Filter Element
Once the filter is removed, wash it in warm water and household detergent, rinse
thoroughly and allow to dry.

9500B
Calibration Manual
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Refitting the Filter Element
1. Hold the filter element in position to cover the chassis holes, and the four
securing holes. Separate the latch and center pin of a black nylon snap rivet, and
push the latch through the filter into a securing hole at the top. Fit the center pin
into the latch and push fully home, so that the pin opens the splits in the rear of
the latch.
2. Slightly stretch the filter element into the correct position; fit and secure the other
four snap rivets.
Refitting the Top Cover
Carefully refit the top cover into the slots in the side extrusions, with the front edge
immediately behind the front bezel; push forward to locate inside the bezel, and secure to
the rear panel using the two screws. Refit and secure the corner blocks.
Replacement Parts
Should the filter or snap rivets become damaged by removal or refitting, the following
parts can be ordered through your Fluke Calibration Sales and Service Center.
See Table 1.
Table 1. Order Details for Replacement Parts
Part No. Description Manufacturer Type Qty
451004 20 ppi Reticulated
Foam Filter
----- ----- 1
617020 Snap Rivet, Black
Nylon
Richco. SR4050B 5
Firmware Upgrade
Introduction
The Model 9500B firmware can be upgraded using a 'Personal Computer Memory Card
Interface Adaptor' (PC-Card). To do this, the Model 9500B has been fitted with FLASH
memory chips to provide the update capability.
If an upgrade is required for your Model 9500B unit(s), your Service Center will inform
you and provide the appropriate PC-Card.
This section describes the routine procedure for upgrading the firmware. Note that the
'All' Self Test appears twice in the procedure: before and after carrying out the upgrade.
This is included on two occasions to determine whether any difficulties were present
before the upgrade, or whether they have arisen as a result of the upgrade.

High Performance Oscilloscope Calibrator
Routine Maintenance
5
Procedure
1. 'All' Self Test (Refer to Types of Test and Viewing the Test Results): Execute a
'All' Self Test and record any errors. If printing facilities are available, select the
PRINT option to obtain a hard copy of the results.
2. Prepare the 9500B:
a. Switch 9500B Power OFF.
b. Locate the FACTORY SET switches on the 9500B rear panel:
erw162
1) Remove the switch cover by releasing its retaining screw.
erw163
2) Set Switch 6 to the ENABLE position (up) Do not disturb any of the
other switches.
erw164
3. Insert the PC-Card:
a. Locate 'PCMCIA SLOT 1' in the 9500B front panel.
b. Insert the PC-Card into 'PCMCIA SLOT 1', exerting just enough pressure to
push out the black button by the side of the slot.

9500B
Calibration Manual
6
4. Re-Program the Firmware:
a. Switch 9500B Power ON.
b. Observe the following growth pattern on the 9500B LCD display:
erw165
The process takes approximately 2 minutes to complete. When complete, a
repetitive, pulsed audible tone will be heard.
If for any reason a continuous audible tone is heard, the update has not been
successful. Note the current state of the growth pattern on the display, and relay
this information back to the Service Center
5. Recover the Operational State of the 9500B:
a. Switch 9500B Power OFF.
b. Return Switch 6 to the DISABLE position. Do not disturb any of the other
switches.
c. Replace and secure the switch cover.
d. Remove the PC-Card, switch the 9500B Power ON and wait for
approximately 40 seconds until the Power-On Selftest is complete.
e. On the right of the 9500B front panel, press the Mode key.
f. At the bottom of the 9500B LCD display, press the soft CONFIG key, and
check that the firmware issue, shown on the screen, matches that on the PC-
Card.
g. Transfer back to the Mode Selection screen by pressing the Mode key.
6. 'All' Self Test (Refer to Types of Test and Viewing the Test Results):
a. Execute an 'All' Self Test and record any errors. If printing facilities are
available, select the PRINT option to obtain a hard copy of the results (refer
also to Printing Selftest Results).
b. Note any differences between the self tests at items 1 and 6.
c. Report the results of the upgrade procedure back to the Service Center.
The Model 9500B firmware upgrade is now complete. Please return your
PCMCIA to the Service Center.

High Performance Oscilloscope Calibrator
Model 9500B Test and Selftest
7
Active Heads
A range of Active Heads are available for the 9500B Oscilloscope calibrator. Active head
connector wear can seriously impact product specifications. Fluke Calibration
recommends that connectors are inspected for wear or damage before use. The
recommended interval for connector replacement based on average use is every two
years, and once per year for Active heads with higher than average use.
Contact a Fluke Calibration authorized service center for replacement. Attempts to
change connectors without the correct tools, training or calibration system is not
recommended.
Model 9500B Test and Selftest
Types of Tests
There are four main types of selftest, 'Base', 'Heads', 'All' and 'Fast'. The Fast selftest is
also performed automatically at power-on. In addition, the interface for front panel
operation can be selectively tested, covering such areas as display memory integrity,
keyboard operation, the display itself, integrity and formatting of static RAM memory
cards for Procedure mode, the correct operation of a connected tracker-ball, and the
correct operation of a connected printer. These tests are detailed in the following
paragraphs.
Please Note that all Heads should be disconnected from the UUT Oscilloscope before
initiating a Self Test. Failure to disconnect may result in failed tests.
Test Mode
Test mode is selected from the Mode Selection menu, which is displayed by pressing the
front panel 'Mode' key, highlighted in Figure 2:
erw166
Figure 2. 'Mode' Key

9500B
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8
erw167
This menu can be exited only by pressing one of the five screen keys.
TEST: This key enters Test mode, displaying the following screen:
erw168
BASE: Runs a selftest of the Base Unit.
HEADS: Runs a selftest of all fitted Active Heads.
ALL: Runs a selftest of the Base Unit and all fitted Active Heads.
FAST: Runs the same confidence selftest as at Power On.
INTERFACE: This key allows checks of the display and display memory, the front
panel keyboard, the (Procedure mode) memory card slots, the
tracker ball and printer interfaces.
Base, Heads, All and Fast Selftest
BASE, HEADS, ALL and FAST selftests follow the same format. By pressing one of
these four screen keys on the 'Select test' menu screen, the 9500B runs that selftest. The
first screen shows the type of test, the pathway under test and the number of tests
remaining.
For example:

High Performance Oscilloscope Calibrator
Model 9500B Test and Selftest
9
erw169
(In the following descriptions, it is assumed that a BASE selftest was selected. Other
selftests have the selftest name appearing on the screen).
Aborting the Selftest
ABORT: Stops the selftest and displays the appropriate 'ABORTED' screen.
For example:
erw170
If there were no failures up to the point of aborting, this is shown on the screen.
EXIT: Returns to the 'Select test' menu screen.
PRINT: Prints out the results of the test, up to the point of a
b
orting.
Refer to Printing Selftest Results.
If failures were encountered up to the point of aborting, EXIT and PRINT are available.
Also, the number of failures is shown on the screen, and an extra selection will be
available:

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Calibration Manual
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erw171
VIEW FAILS: Sets up a special screen for detailing the parameters of the failures
encountered (described later in Viewing the Test Results)
Selftest Runs to Completion
If the selftest is not aborted, it will run to completion, and if the test is successful with no
failures, a screen will appear:
erw172
If failures were encountered during the test, the 9500B will display a completion screen.
For example:
erw173

High Performance Oscilloscope Calibrator
Model 9500B Test and Selftest
11
EXIT: Returns to the 'Select test' menu screen.
PRINT: Prints out the results of the test.
Refer to Printing Selftest Results.
If failures were encountered, EXIT and PRINT remain available. Also, the number of
failures is shown on the screen, and an extra selection will be available:
VIEW FAILS: Sets up a special screen for detailing the parameters of the failures
encountered (described later in Viewing the Test Results).
Viewing the Test Results
By pressing the VIEW FAILS screen key, each of the failed tests can be viewed in turn,
on a screen which shows the test number (pathway), measured value, upper and lower
limits, and the value of the error. A brief description of the test is also given in a box
beneath the values.
The screen for viewing the test results is shown below. This can also appear when a test
has been aborted:
erw174
Note
If the cause of failure is not immediately obvious, and it is intended to
consult your Fluke Calibration Service Center, please ensure that you
either: copy the details from the screen for all the reported failures, or:
print out the results.
NEXT FAILURE:
Once the details of the first failure have been noted, the next failure in the list can be
viewed by pressing the NEXT FAILURE screen key. The list of failures remains in
memory until the next selftest is started, and the PREV FAILURE screen key can be used
to help scan the list one at a time. Once the last failure in the list is on the screen, and the
NEXT FAILURE screen key is pressed, the following error message will appear in the
top right of the screen:
erw175

9500B
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Pressing the NEXT FAILURE screen key will have no further effect.
Printing the Test Results
The PRINT screen key is present on the 'ABORTED' or 'completed' screens after the test
has run to completion or has been aborted. Pressing the PRINT key will print out all the
available results.
Printing will only be possible if a suitable printer is set up, connected and on line. Refer
to Printing Selftest Results.
Selftest at Power-On
Note
Certain catastrophic 'System Trip Errors' may cause the display to flash on
and off, at the point of setting power on. In this case, immediately switch
Power Off and report the fault to your Service Center.
The first normal action at power on is to show the Fluke Calibration logo and Product
name, and then the 9500B will run a fast selftes.
If System Trip failures are encountered the 9500B will show the System Trip screen
('RESUME').
If non-trip failures are encountered the 9500B will lapse into Test mode at the following
stage:
erw177
Subsequent action to view the failures and print the results follows as for a Fast selftest
which has run to completion (Selftest Runs to Completion and Viewing the Test Results).
EXIT will return to the 'Select test' menu screen, where, to return to the 'Mode Selection'
menu screen, press the front panel Mode key.
PRINTcan be used to print out the results of the power-on Fast test.
Refer also to Printing Selftest Results.

High Performance Oscilloscope Calibrator
Model 9500B Test and Selftest
13
Interface Test
The interface test selectively checks the 9500B front panel operations, covering display
memory integrity, keyboard operation, the display itself, integrity and formatting of static
RAM memory cards for Procedure mode, the correct operation of a connected tracker
ball, and the correct operation of a connected printer.
Access to Interface Tests
Once the Test mode has been selected, Interface Test is selected by pressing the
INTERFACE screen key in the 'Select test' menu:
erw178
Pressing INTERFACE transfers to the 'Select test' menu screen:
erw179.eps
The required check can be selected from the list on the right of the screen, using the
corresponding screen key.
EXIT returns to the previous 'Select required test' menu screen.
The six available checks are detailed, in list order, in the following paragraphs.

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Display Memory Checks
Pressing the DISPLAY MEMORY key on the 'Select test' menu screen transfers to the
'Memory test.' screen, and the sequence of tests begins. The test in progress is reported on
the screen:
erw180
erw181
The other tests reported are:
•Performing WALKING ONES test 1
•Performing READ/WRITE test 2
•Performing WALKING ONES test 2