Fluke 190 Operating Manual

ScopeMeter 190 Series II

Fluke 190-062, -102, -104, -202, - 204

Service Manual

PN 4822 872 05405 July 2011, Rev. 4, March 2013

PLACING ORDERS AND GETTING ASSISTANCE

To locate an authorized service center, visit us on the World Wide Web:

http://www.fluke.com

or call Fluke using any of the phone numbers listed below:

+1-888-993-5853 in U.S.A. and Canada

+31-40-2675200 in Europe

+1-425-446-5500 from other countries

Chapter Title Page

1 Safety Instructions .............................................................................. 1-1

1.1 Introduction.................................................................................................. 1-3

1.2 Safety Precautions........................................................................................ 1-3

1.3 Caution and Warning Statements ................................................................ 1-3

1.4 Symbols ....................................................................................................... 1-3

1.5 Impaired Safety............................................................................................ 1-4

1.6 General Safety Information ......................................................................... 1-4

1.7 Safe Handling and Use of Li-ion battery pack ............................................ 1-4

2 Characteristics..................................................................................... 2-1

3 List of Replaceable Parts.................................................................... 3-1

3.1 Introduction.................................................................................................. 3-3

3.2 How to Obtain Parts..................................................................................... 3-3

3.3 Final Assembly Parts................................................................................... 3-4

3.5 Accessories .................................................................................................. 3-8

4 Performance Verification .................................................................... 4-1

4.1 Introduction.................................................................................................. 4-3

4.2 Equipment Required For Verification ......................................................... 4-3

4.3 General Instructions..................................................................................... 4-4

4.4 Operating Instructions.................................................................................. 4-4

4.4.1 Resetting the Test Tool......................................................................... 4-4

4.4.2 Navigating through menu’s.................................................................. 4-4

4.4.3 Creating a StandardTest Tool Setup, e.g. SCOPE1.............................. 4-5

4.5 Display and Backlight Test.......................................................................... 4-6

4.6 Scope Input A, B, C, D Tests....................................................................... 4-8

4.6.1 Input A, B, C, D Vertical Accuracy Test ............................................. 4-8

4.6.2 Input A, B, C, D DC Voltage Accuracy Test...................................... 4-10

4.6.3 Input A, B, C, D AC Voltage Accuracy Test (LF).............................. 4-13

4.6.4 Input A, B, C, D AC Coupled Lower Frequency Test ......................... 4-15

4.6.5 Input A, B, C, D Peak Measurements Test.......................................... 4-16

4.6.6 Input A, B, C, D Frequency Measurement Accuracy Test.................. 4-17

4.6.7 Input A&B / C&D Phase Measurements Test...................................... 4-18

4.6.8 Time Base Test..................................................................................... 4-19

4.6.9 Input A Trigger Sensitivity Test........................................................... 4-20

4.6.10 Input A AC Voltage Accuracy (HF) & Bandwidth Test.................... 4-22

4.6.11 Input B Trigger Sensitivity Test......................................................... 4-23

4.6.12 Input B AC Voltage Accuracy (HF) & Bandwidth Test.................... 4-24

4.6.13 Input C Trigger Sensitivity Test......................................................... 4-25

ScopeMeter 190 Series II

Service Manual

4.6.14 Input C AC Voltage Accuracy (HF) & Bandwidth Test.................... 4-26

4.6.15 Input D Trigger Sensitivity Test......................................................... 4-27

4.6.16 Input D AC Voltage Accuracy (HF) & Bandwidth Test.................... 4-28

4.6.17 Video test using the Video Pattern Generator.................................... 4-29

4.6.18 Video test using SC600 Scope Calibration Option ............................ 4-32

4.7 External Trigger Level Test......................................................................... 4-35

4.8 Meter (DMM) Tests..................................................................................... 4-36

4.8.1 Meter DC Voltage Accuracy Test........................................................ 4-36

4.8.2 Meter AC Voltage Accuracy & Frequency Response Test................. 4-37

4.8.3 Continuity Function Test...................................................................... 4-38

4.8.4 Diode Test Function Test ..................................................................... 4-38

4.8.5 Ohms Measurements Test .................................................................... 4-39

4.9 Probe Calibration Generator Test ................................................................ 4-40

5 Calibration Adjustment....................................................................... 5-1

5.1 General......................................................................................................... 5-3

5.1.1 Introduction .......................................................................................... 5-3

5.1.2 Calibration number and date ................................................................ 5-3

5.1.3 General Instructions.............................................................................. 5-3

5.1.4 Equipment Required For Calibration ................................................... 5-4

5.2 Calibration Procedure Steps......................................................................... 5-4

5.3 Starting the Calibration................................................................................ 5-5

5.4 Contrast Calibration Adjustment ................................................................. 5-6

5.5 Warming Up & Pre-Calibration................................................................... 5-7

5.6 Final Calibration (Firmware: V09.00, V10.00 or V10.4x).......................... 5-9

5.6.1 Warm Up Final and ADC Timing........................................................ 5-9

5.6.2 Input A LF-HF Gain............................................................................. 5-10

5.6.3 Input B LF-HF Gain............................................................................. 5-11

5.6.4 Input C LF-HF Gain............................................................................. 5-13

5.6.5 Input D LF-HF Gain............................................................................. 5-14

5.6.6 Input ABCD (AB) LF-HF Gain ........................................................... 5-16

5.6.7 Input ABCD (AB) Position................................................................. 5-18

5.6.8 Input ABCD (AB) Volt Gain ............................................................... 5-18

5.6.9 Input ABCD (AB) Zero........................................................................ 5-20

5.6.10 Multimeter (DMM) Volt Gain............................................................ 5-20

5.6.11 Multimeter (DMM) Numeric Zero..................................................... 5-21

5.6.12 Multimeter (DMM) Ohm Gain........................................................... 5-22

5.7 Final Calibration (Firmware: V11.10)......................................................... 5-24

5.7.1 Warm Up Final and ADC Timing........................................................ 5-24

5.7.2 Input A LF-HF Gain............................................................................. 5-25

5.7.3 Input B LF-HF Gain............................................................................. 5-26

5.7.4 Input C LF-HF Gain............................................................................. 5-27

5.7.5 Input D LF-HF Gain............................................................................. 5-28

5.7.6 Input ABCD (AB) LF-HF Gain ........................................................... 5-30

5.7.7 Input ABCD (AB) Position................................................................. 5-31

5.7.8 Input ABCD (AB) Zero........................................................................ 5-31

5.7.9 Input ABCD (AB) Volt Gain ............................................................... 5-32

5.7.10 Multimeter (DMM) Numeric Zero..................................................... 5-33

5.7.11 Multimeter (DMM) Volt Gain............................................................ 5-34

5.7.12 Multimeter (DMM) Ohm Gain........................................................... 5-35

5.8 Save Calibration Data and Exit.................................................................... 5-36

5.9 Probe Calibration......................................................................................... 5-38

6 Disassembling the Test Tool.............................................................. 6-1

6.1. Introduction................................................................................................. 6-3

6.2. Disassembly & Reassembly Procedures..................................................... 6-3

6.2.1 Required Tools ..................................................................................... 6-3

6.2.2 Removing the Tilt Stand, Hang Strap, and Side Strap ......................... 6-3

6.2.3 Opening the Test Tool, Removing the Battery Pack............................ 6-4

6.2.4 Getting access to Top Side of PCA...................................................... 6-4

6.2.5 Getting access to Bottom Side of PCA................................................. 6-5

6.2.6 Getting access to LCD, Keypad Foil and Keypad................................ 6-5

6.2.7 Pictures Showing Disassembly Steps................................................... 6-6

Contents (continued)

iii

ScopeMeter 190 Series II

Service Manual

Chapter 1

Safety Instructions

Title Page

1.1 Introduction..................................................................................................1-3

1.2 Safety Precautions........................................................................................1-3

1.3 Caution and Warning Statements ................................................................1-3

1.4 Symbols .......................................................................................................1-3

1.5 Impaired Safety............................................................................................1-4

1.6 General Safety Information .........................................................................1-4

1.7 Safe Handling and Use of Li-ion battery pack ............................................1-4

1-1

Safety Instructions

1.1 Introduction 1

1.1 Introduction

Read these pages carefully before beginning to install and use the Test Tool. The following paragraphs contain information, cautions and warnings which must be

followed to ensure safe operation and to keep the Test Tool in a safe condition.

Warning

Servicing described in this manual is to be done only by qualified service personnel. To avoid electrical shock, do not service the Test Tool unless you are qualified to do so.

1.2 Safety Precautions

For the correct and safe use of this Test Tool it is essential that both operating and service personnel follow generally accepted safety procedures in addition to the safety precautions specified in this manual. Specific warning and caution statements, where they apply, will be found throughout the manual. Where necessary, the warning and caution statements and/or symbols are marked on the Test Tool.

1.3 Caution and Warning Statements

Caution

Used to indicate correct operating or maintenance procedures to prevent damage to or destruction of the equipment or other property.

Warning

Calls attention to a potential danger that requires correct procedures or practices to prevent personal injury.

1.4 Symbols

The following symbols are used on the Test Tool, in the Users Manual, in this Service Manual, or on spare parts for this Test Tool.

See explanation in Users Manual

Live voltage

Static sensitive components (black/yellow).

Disposal information

Table cont’d on next page:

Li-Ion

DOUBLE INSULATION (Protection Class)

Earth Ground

Recycling information

Conformité Européenne

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Service Manual

Battery Safety Approval

Conforms to relevant Australian standards

1.5 Impaired Safety

Whenever it is likely that safety has been impaired, the Test Tool must be turned off and disconnected from line power. The matter should then be referred to qualified technicians. Safety is likely to be impaired if, for example, the Test Tool fails to perform the intended measurements or shows visible damage.

1.6 General Safety Information

Warning

Removing the Test Tool covers or removing parts, except those to which access can be gained by hand, is likely to expose live parts and accessible terminals which can be dangerous to life.

The Test Tool shall be disconnected from all voltage sources before it is opened. Capacitors inside the Test Tool can hold their charge even if the Test Tool has been

separated from all voltage sources.

Safety Approval

RoHS China

When servicing the Test Tool, use only specified replacement parts.

1.7 Safe Handling and Use of Li-ion battery pack

The Test Tool uses a rechargeable Li-ion battery pack model BP290 (26 Wh) or BP291 (52 Wh).

For instructions how to safely handle and use this battery pack refer to Paragraph “Safety Information” in the Users Manual of Fluke 190-062, 190-102, 190-104, 190-202, 190204, 190-502 (ScopeMeter 190 Series II).

The Users Manual can be downloaded from Fluke’s website.

1-4

Chapter 2

Characteristics

For the specifications refer to the “Specifications” Chapter 8 in the Fluke 190-062, 190-102, 190-104, 190-202, 190-204, 190-502 (ScopeMeter 190 Series II) Users Manual.

The Users Manual can be downloaded from Fluke’s website.

2-1

2-2

Chapter 3

List of Replaceable Parts

Title Page

3.1 Introduction..................................................................................................3-3

3.2 How to Obtain Parts.....................................................................................3-3

3.3 Final Assembly Parts...................................................................................3-4

3.5 Accessories ..................................................................................................3-8

3-1

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Service Manual

3-2

List of Replaceable Parts

3.1 Introduction 3

3.1 Introduction

This chapter contains an illustrated list of replaceable parts for the models Fluke 190 Series II ScopeMeter test tools. Parts are listed by assembly; alphabetized by item number or reference designator. Each assembly is accompanied by an illustration showing the location of each part and its item number or reference designator. The parts list gives the following information:

• Item number or reference designator (for example, “R1201”)

• Description

• Ordering code

Caution

Electrical components and in particular active components such as IC’s, transistors and diodes may be damaged by static discharge. Handling and servicing static sensitive components and assemblies should be done only at a static free workstation by qualified personnel.

3.2 How to Obtain Parts

To locate an authorized service center refer to the second page of this manual (back of the title page).

In the event that the part ordered has been replaced by a new or improved part, the replacement will be accompanied by an explanatory note and installation instructions, if necessary.

To ensure prompt delivery of the correct part, include the following information when you place an order:

• Instrument model (for example Fluke-190-104), 12 digit instrument code (9444 ...

....), and serial number (15500001). The items are printed on the type plate on the

bottom cover.

• Ordering code

• Item number - Reference designator

• Description

• Quantity

3-3

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Service Manual

3.3 Final Assembly Parts

See Table 3-1 and Figure 3-1, 3-2 and 3-3 for the Final Assembly parts.

Part or Kit Ordering Code Consists of Following Parts Figure/Item nr

Case Set 4 channel 3981815

Dustseal long (2x) 3-3 / 3 Dustseal short (2x) 3-3 / 4 Case seal 3-3 / 13 Bottom case assy 3-1 / 3 Battery door 3-1 / 14 Quarter turn screw (2x) 3-1 / 15 Adhesive foam (for battery door) - Standup bracket 3-1 / 14

Case Set 2 channel 4035349

Quarter turn screw 948609 For battery door (1x) 3-1 / 15 Li-ion Battery Pack BP290 26 Wh, 10.8 V --Li-ion Battery Pack BP291 52 Wh, 10.8 V ---

Lens/decal 190-062 4035360 --- 3-3 Lens/decal 190-102 4035372 --- 3-3 Lens/decal 190-104 3981826 --- 3-3 Lens/decal 190-202 4035324 --- 3-3 Lens/decal 190-204 3981832 --- 3-3 Lens/decal 190-502 4035385 --- 3-3 LCD assy Flk-190-II 3981844 LCD module

Topholster (Input

Cover 2 ch. + meter)

Topholster (Input

Cover 4 channels)

Sealing strip (flexible)

around inputs

Mounting Material Set 3981859

Dowel (6x, to fix straps) 3-1 / 4 Steel Plate for Lock 3-1 / 5 Selftapping Screw 16.5 mm (4x, to

Screw M3x6 (2x, to fix bottom 3-1 / 8

4035397 --- 3-1 / 1

3945328 --- 3-1 / 1

3945319 --- 3-1 / 11

Table 3-1. Final Assembly Parts and Kits

Front case (Excl. lens/decal) 4

channel

Front case (Excl. lens/decal) 2

channel

LCD fixation foam

Flat cable

Selftapping Screw 10 mm (2x, to fix

input cover)

fix Rear Case)

3-3 / 5

3-3 / 1 3-3 / 2 3-3 / 7

3-1 / 2

3-1 / 6

3-4

List of Replaceable Parts

Part or Kit Ordering Code Consists of Following Parts Figure/Item nr

holster)

Selftapping Screw (6x, 10.5 mm to

fix Main PCA Module to Front Case)

Side Strap 3945370 Can be fixed on Left or Right side ---

Hang Strap 946769 Can be fixed op Top Side of

Instrument

Bottom Holster Set 3981867 Bottomholster assy 3-1 / 7

Cover for USB 3-1 / 9 Cover for DC adapter power 3-1 / 10

Connector Set 3981871 Probe signal pin (J8010)

Probe ground pin (J8011) USB-A connector (J8007) USB-B mini connector (J8003) Faston pin battery (5x, X9104-9108) Cushion (Fits around Faston pin) Sealing piece USB/Probe (black) 3-3 / 10 Sealing piece DC power (black) 3-3 / 11

Keypad 4 channels 3942805 --- 3-3/ 6

Keypad 2 ch. + meter 4035336 --- 3-3/ 6

Keypad Foil (all

models)

USB cable 3945381 USB-A to mini-USB-B (for PC

BNC Connector Red 3945031 X1100 ---

BNC Connector Blue 3945046 X1300 ---

BNC Connector Gray 3945054 X1400 ---

BNC Connector Green 3945068 X1200 ---

Banana Jack Black 4035403 X 1501 ---

Banana Jack Red 4035415 X 1500 ---

DC Power Input

Socket

3942810 (Incl. Flat Cable) 3-3 / 9

connection)

215785 X9100 ---

3.3 Final Assembly Parts 3

3-3 / 12

---

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Service Manual

Figure 3-1

3-6

List of Replaceable Parts

3.3 Final Assembly Parts 3

Figure 3-2

Figure 3-3

Note

The test tool contains a Li-ion battery. Do not mix with the

Li-Ion

solid wastestream. Spent batteries should be disposed of by a qualified recycler or hazardous materials handler.

3-7

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Service Manual

3.5 Accessories

For a list with accessories refer to the “Maintaining the Test Tool” Chapter in the Fluke ScopeMeter 190 Series II Users Manual.

The Users Manual can be downloaded from Fluke’s website.

3-8

Chapter 4

Performance Verification

Title Page

4.1 Introduction..................................................................................................4-3

4.2 Equipment Required For Verification .........................................................4-3

4.3 General Instructions.....................................................................................4-4

4.4 Operating Instructions..................................................................................4-4

4.4.1 Resetting the Test Tool.........................................................................4-4

4.4.2 Navigating through menu’s..................................................................4-4

4.4.3 Creating a StandardTest Tool Setup, e.g. SCOPE1..............................4-5

4.5 Display and Backlight Test..........................................................................4-6

4.6 Scope Input A, B, C, D Tests.......................................................................4-7

4.6.1 Input A, B, C, D Vertical Accuracy Test .............................................4-7

4.6.2 Input A, B, C, D DC Voltage Accuracy Test......................................4-10

4.6.3 Input A, B, C, D AC Voltage Accuracy Test (LF)..............................4-12

4.6.4 Input A, B, C, D AC Coupled Lower Frequency Test .........................4-13

4.6.5 Input A, B, C, D Peak Measurements Test..........................................4-14

4.6.6 Input A, B, C, D Frequency Measurement Accuracy Test..................4-16

4.6.7 Input A&B / C&D Phase Measurements Test......................................4-17

4.6.8 Time Base Test.....................................................................................4-18

4.6.9 Input A Trigger Sensitivity Test...........................................................4-19

4.6.10 Input A AC Voltage Accuracy (HF) & Bandwidth Test....................4-21

4.6.11 Input B Trigger Sensitivity Test.........................................................4-22

4.6.12 Input B AC Voltage Accuracy (HF) & Bandwidth Test....................4-23

4.6.13 Input C Trigger Sensitivity Test.........................................................4-24

4.6.14 Input C AC Voltage Accuracy (HF) & Bandwidth Test....................4-25

4.6.15 Input D Trigger Sensitivity Test.........................................................4-26

4.6.16 Input D AC Voltage Accuracy (HF) & Bandwidth Test....................4-27

4.6.17 Video test using the Video Pattern Generator....................................4-28

4.6.18 Video test using SC600 Scope Calibration Option ............................4-31

4.7 External Trigger Level Test.........................................................................4-34

4.8 Meter (DMM) Tests.....................................................................................4-35

4.8.1 Meter DC Voltage Accuracy Test........................................................4-35

4.8.2 Meter AC Voltage Accuracy & Frequency Response Test.................4-36

4.8.3 Continuity Function Test......................................................................4-37

4-1

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Service Manual

4.8.4 Diode Test Function Test .....................................................................4-37

4.8.5 Ohms Measurements Test ....................................................................4-38

4.9 Probe Calibration Generator Test................................................................4-39

4-2

Performance Verification

4.1 Introduction 4

4.1 Introduction

Warning

Procedures in this chapter should be performed by qualified service personnel only. To avoid electrical shock, do not perform any servicing unless you are qualified to do so.

The Fluke 190 Series II ScopeMeter Test Tools family consists of following models:

Model Description of main features

190-062 Two 60 MHz Scope Inputs (BNC), one Meter Input (banana jacks).

190-102 Two 100 MHz Scope Inputs (BNC), one Meter Input (banana jacks).

190-104 Four 100 MHz Scope Inputs (BNC)

190-202 Two 200 MHz Scope Inputs (BNC), one Meter Input (banana jacks).

190-204 Four 200 MHz Scope Inputs (BNC).

190-502 Two 500 MHz Scope Inputs (BNC), one Meter Input (banana jacks).

This model has a separate Service Manual.

The Fluke 190 Series II ScopeMeter® Test Tool (referred to as Test Tool) should be calibrated and in operating condition when you receive it.

The following performance tests are provided to ensure that the Test Tool is in a proper operating condition. If the Test Tool fails any of the performance tests, calibration adjustment (see Chapter 5) and/or repair (see Chapter 7) is necessary.

The Performance Verification Procedure is based on the specifications, listed in Chapter 2 of this Service Manual. The values given here are valid for ambient temperatures between 18 °C and 28 °C.

The Performance Verification Procedure is a quick way to check most of the Test Tool’s specifications. Because of the highly integrated design of the Test Tool, it is not always necessary to check all features separately.

4.2 Equipment Required For Verification

The primary source instrument used in the verification procedures is the Fluke 5500A. If a 5500A is not available, you can substitute another calibrator as long as it meets the minimum test requirements.

• Fluke 5500A Multi Product Calibrator, including SC300 or SC600 Oscilloscope

Calibration Option.

• Stackable test leads (4x) as supplied with the 5500A (required for Test Tools with a

meter section with banana jacks and 2 BNC oscilloscope inputs: 190-062, 190-102, 190-202).

• 50Ω Coax Cables (4x): use Fluke PM9091 (1.5m, 3 pcs.) and PM9092 (0.5m,

3 pcs.). For Test Tools with with meter section with banana jacks and 2 BNC oscilloscope inputs (190-062, 190-102, 190-202) 2 Coax Cables are sufficient.

• Male BNC to Dual Female BNC adapter (3x), Fluke PM9093/001.

For Test Tools with with meter section with banana jacks 1 adapter is sufficient.

• 50Ω feed through termination, use for example Fluke PM9585 or Fluke TRM50.

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Service Manual

• Dual Banana Plug to Female BNC Adapter (1x), Fluke PM9081/001.

• Dual Banana Jack to Male BNC Adapter (1x), Fluke PM9082/001.

• TV Signal Generator, Philips PM5418, NOT required if SC600 Oscilloscope

Calibration Option is used.

• 75Ω Coax cable (1x), Fluke PM9075.

• 75Ω Feed through termination (1x), ITT-Pomona model 4119-75.

• 10:1 Attenuator Probes as supplied with Test Tool.

4.3 General Instructions

Follow these general instructions for all tests:

• For all tests, power the Test Tool with the BC190 power adapter. The battery pack

must be installed.

• Allow the 5500A to satisfy its specified warm-up period.

• For each test point, wait for the 5500A to settle.

• Allow the Test Tool a minimum of 30 minutes to warm up.

• One division on the LCD consists of 25 pixels (1 pixel = 0.04 division).

• This procedure is setup for all models. Test steps that are not applicable to the Test

Tool to be verified can be skipped: e.g. the verification of the meter with banana jacks can be skipped in instruments with four scope (BNC) inputs.

• The figures that show how to interconnect Signal Source and Test Tool show the

situation for 2 Scope Inputs + Meter Input and for 4 Scope Inputs.

4.4 Operating Instructions

4.4.1 Resetting the Test Tool

Proceed as follows to reset the Test Tool:

• Press

• Press and hold

• Press and release

• Wait until the Test Tool has beeped twice, and then release

has beeped twice, the RESET was successful.

4.4.2 Navigating through menu’s

During verification you must open menus, and to choose items from the menu.

Proceed as follows to make choices in a menu:

• Reset the Test Tool

• Open a menu, for example press

A menu as showed in Figure 4-1 will be opened. Active functions are marked by a yellow background or yellow characters. If more than one menu groups are available, they will be separated by a vertical line. The menu you opened indicates that shows the result of a V rms measurement (

to turn the Test Tool off.

USER

to turn the Test Tool on.

USER

SCOPE

, then press

READING 1 (that is the upper left reading)

V ac+dc) on Input A (on A ).

. When the Test Tool

(READING ...).

4-4

• Press

or to highlight the function to be selected.

Performance Verification

4.4 Operating Instructions 4

• Press

ENTER

to confirm the selection. The active function in the next menu group will be highlighted now. If the confirmation was made in the last (most right) menu group, the menu will be closed.

Figure 4-1. Menu item selection

4.4.3 Creating a StandardTest Tool Setup, e.g. SCOPE1

Before starting the verification procedure you must define a standard Test Tool setup, called for example SCOPE 1. During verification you will be asked to recall this setup. This defines the initial Test Tool setup for each verification.

Note: the setup steps for channel C and D are only for the models 190-104, 190-204.

Proceed as follows to create a setup (for instance SCOPE1):

1. Reset the Test Tool. Input A is ON, other inputs are OFF now.

2. Press

actual settings.

3. Press

4. Select

5. Press

6. Press

7. Select

8. Press

9. Press

Probe Type: Voltage | Attenuation: 1:1 .

: INPUT B ON. The black text with yellow background indicates the

to change the PROBE B setting.

: INPUT C ON.

to change the PROBE C setting.

: INPUT D ON .

to change the PROBE D setting.

10. Select

11. Press

12. Press

13. Select

4-5

Probe Type: Voltage | Attenuation: 1:1 .

. The inverse text indicates the actual settings.

Probe Type: Voltage | Attenuation: 1:1 .

to change the PROBE A setting.

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Service Manual

14. Press

15. Press

16. Press

SCOPE

– READINGS ON.

– READING ... and select with

– READINGS and with the

arrow keys:

Reading 1, on A, V dc, Reading 2, on B, V dc, Reading 3, on C, V dc, Reading 4, on D, V dc.

17. Press

18. Press

19. Press

20. Press

21. Press

22. Using

23. Press

WAVEFORM OPTIONS and select

Glitch: Off | Acquisition: Normal | Average: Off | Waveform: Normal .

MANUAL

AUTO

to select MANUAL ranging (MANUAL in upper right of screen) .

MOVE

and

move the Input A ground level (indicated by

the zero icon

SAVE

: Using

in the left margin) to the center grid line. Do this for all channels.

SAVE...

select SCREEN+SETUP.

ENTER

24. Using

select OK SAVE. Remember the name under which the settings are

saved (for instance SCOPE 1).

ENTER

25. Press

26. Press

to save the settings.

HOLD

RUN

to leave the Hold mode.

4.5 Display and Backlight Test

Proceed as follows to test the display and the backlight:

1. Press

2. Remove the BC190 power adapter, and verify that the backlight is dimmed.

3. Apply the BC190 power adapter and verify that the backlight brightness increases.

4. Press and hold

The Test Tool shows the calibration menu in the bottom of the display.

• Do not press

• Pressing

5. Press

The Test Tool shows

to turn the Test Tool on.

USER

(USER), then press and release

at 4.

CLEAR

will toggle the menu on-off.

PREVIOUS three times.

Contrast (CL 0100):

now! If you did, turn the Test Tool off and on, and start

CLEAR

(CLEAR MENU) .

4-6

6. Press

CALIBRATE .The Test Tool shows a dark display; the test pattern as

shown in Figure 4-2 may be not visible or hardly visible.

Performance Verification

4.6 Scope Input A, B, C, D Tests 4

Observe the display closely, and verify that the display shows no abnormalities, as for example very light pixels or lines.

Figure 4-2. Display Test Pattern

7. Press

8. Press

9. Press

The test pattern is removed; the Test Tool shows

again to do the next step Contrast (CL 0110):

CALIBRATE

Contrast (CL 0100):

The Test Tool shows the display test pattern shown in Figure 4-2, at default contrast. Observe the display closely, and verify that the display shows no abnormalities. Also verify that the contrast of the upper left and upper right square of the test pattern is equal.

10. Press

The test pattern is removed; the Test Tool shows

11. Press

12. Press

Contrast (CL 0110):

again to do the next step Contrast (CL 0120):

CALIBRATE

The Test Tool shows a light display; the test pattern as shown in Figure 4-2 may not be visible or hardly visible. Observe the display closely, and verify that the display shows no abnormalities.

13. Turn the Test Tool OFF and ON to exit the calibration menu and to return to the

normal operating mode.

If the maximum, minimum, or default display contrast is not OK, then you can adjust these items without performing a complete calibration adjustment; refer to Section 5 for detailed information.

4.6 Scope Input A, B, C, D Tests

4.6.1 Input A, B, C, D Vertical Accuracy Test

WARNING

Dangerous voltages will be present on the calibration source and connecting cables during the following steps. Ensure that the calibrator is in standby mode before making any connection between the calibrator and the Test Tool.

Note: the test steps for channel C and D are only for the models 190-104, 190-204.

4-7

Fluke 190-062, -102, -104, -202, - 204

Service Manual

Proceed as follows:

1. Connect the Test Tool to the 5500A as shown in Figure 4-3. The vertical channels A,

B, C and D (A and B) are checked in succession so that there is one waveform on the screen at a time to facilitate amplitude adjustment.

PM9091

METER

ADC

CONNECT TO CHANNEL A, B, C, D IN SUCCESSION

PM9091

50 OHM TERMINATIONNO

2 CHANN. + METER

Figure 4-3. Test Tool Inputs A, B, C, D (A, B) to 5500A Normal Output

4 CHANNELS

2. Select the following Test Tool setup:

• Recall the created setup (e.g. SCOPE 1, see section 4.4.3): press

RECALL , select SETUP, press

recall the setup.

• Press

Attenuator: Normal | Bandwidth:

• Press

Attenuator: Normal | Bandwidth: 20 kHz

• Press

Attenuator: Normal | Bandwidth: 20 kHz

• Press

Attenuator: Normal | Bandwidth: 20 kHz

• Press

CLEAR

, press

to clear the softkey menu, and to see the full screen.

NORMAL SCOPE

PM9081

FLUKE 5500A CALIBRATOR

ENTER

, select SCOPE 1 and press

INPUT A OPTIONS... , and select

20 kHz

INPUT B OPTIONS... , and select

INPUT C OPTIONS... , and select

INPUT D OPTIONS... , and select

SAVE

ENTER

4-8

Note:

The 20 kHz bandwidth limiter rejects calibrator noise. It does not affect the gain

accuracy at a 50 Hz input signal

3. Press

and using

RANGE

and

RANGE

set the Input A sensitivity range to the first

test point in Table 4-1.

4. Set the 5500A to source the appropriate initial ac voltage.

5. Adjust the 5500A output voltage until the displayed Input A trace amplitude is 6

divisions.

6. Observe the 5500A output voltage and check to see if it is within the range shown

under the appropriate column.

7. Continue through the test points.

8. Next check channel B, C or D in succession:

Connect channel B, C or D input to 5500A,

Performance Verification

4.6 Scope Input A, B, C, D Tests 4

Press

TRIGGER

and select B, C or D as trigger source with

Press B, C or D to assign vertical range to channel B, C or D, Observe the 5500A output voltage and check to see if it is within range.

9. When you are finished, set the 5500A to 0 (zero) Volt, and to Standby.

Table 4-1. Vertical Accuracy Verification Points

Range Initial 5500A Setting,

V ac, sine, 50 Hz

2 mV/div 4.243 mV 3.951 to 4.517

5 mV/div 10.606 mV 10.183 to 11.028

10 mV/div 21.213 mV 20.368 to 22.058

20 mV/div 42.426 mV 40.735 to 44.117

50 mV/div 106.06 mV 101.83 to 110.28

100 mV/div 212.13 mV 203.67 to 220.58

200 mV/div 424.26 mV 407.35 to 441.16

500 mV/div 1.0607 V 1.0184 to 1.1030

1 V/div 2.1213 V 2.0367 to 2.2058

Allowable 5500A output for trace amplitude of

6 divisions

2 V/div 4.2426 V 4.0735 to 4.4117

5 V/div 10.606 V 10.183 to 11.028

10 V/div 21.213 V 20.368 to 22.058

20 V/div 42.426 V 40.735 to 44.117

50 V/div 106.06 V 101.83 to 110.29

100 V/div 212.13 V 203.67 to 220.58

Note

The vertical accuracy test can also be done with dc voltage. This method is advised for automatic verification using the Fluke Met/Cal Metrology Software. For each sensitivity range you must proceed as follows:

1. Apply a +3 divisions voltage, and adjust the voltage until the trace is at

+3 divisions. Write down the applied voltage V1

2. Apply a -3 divisions voltage, and adjust the voltage until the trace is at

-3 divisions. Write down the applied voltage V2

3. Verify that V1-V2 = 6 x range

(2.1% + 0.04 x range).:

Example for range 10 mV/div. (range/div figure doubles because 2 measurements V1 and V2 are done for one accuracy check): The allowed V1 - V2 = 60 mV = 60 mV

(0.021 x 60 + 0.08 x 10)

(1.26 + 0.8) = 60 mV ± 2.06 mV

4-9

Fluke 190-062, -102, -104, -202, - 204

Service Manual

4.6.2 Input A, B, C, D DC Voltage Accuracy Test

Note: the test steps for channel C and D are only for the models 190-104, 190-204.

Proceed as follows to verify the automatic dc voltage scope measurement:

Connect the Test Tool to the 5500A as shown in see Figure 4-4.

PM9092

PM9093

METER

ADC

WARNING

PM9092

PM9091

CONNECT TO CHANNEL A, B, C, D IN PARALLEL

50 OHM TERMINATIONNO

3 9 0 9

M P

2 CHANN. + METER

Figure 4-4. Test Tool Inputs A, B, C, D (A, B) to 5500A Normal Output

4 CHANNELS

1. Select the following Test Tool setup:

• Recall the created setup (e.g. SCOPE 1, see section 4.4.3): press

RECALL , select SETUP, press

recall the setup .

• Press

• Select

• Press

• Select

• Press

• Select

• Press

• Select

• Press

2. Press

Attenuator: Normal | Bandwidth: 20 kHz.

CLEAR

, then press

to clear the softkey menu, and to see the full 8 divisions screen.

and using

test point in Table 4-2. Do this also for channels B, C and D

RANGE

PM9081

and

NORMAL SCOPE

FLUKE 5500A CALIBRATOR

SAVE

ENTER

, select SCOPE 1 and press

ENTER

INPUT A OPTIONS ...

INPUT B OPTIONS ...

INPUT C OPTIONS ...

INPUT D OPTIONS ...

RANGE

set the Input A sensitivity range to the first

4-10

3. Set the 5500A to source the appropriate dc voltage.

4. Observe readings

A, B, C and D and check to see if they are within the range shown

under the appropriate column. Due to calibrator noise, occasionally OL (overload) can be shown.

5. Continue through the test points.

+ 76 hidden pages

Fluke 190 Operating Manual

PLACING ORDERS AND GETTING ASSISTANCE

Table of Contents

Safety Instructions

Characteristics

List of Replaceable Parts

Performance Verification