Fluke 190M User Manual
190M Series Medical ScopeMeter
Fluke Biomedical 190M-2, 190M-4
Users Manual
FBC-0029
April 2012, Rev. 1
© 2012 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
SCO
PE
12
CURSOR
METER
RECORDER
1
2
1
SCOPE
METER
CURSOR
REPLAY
ZOOM
3
3
ZOOM
REPLAY
3
LIMITED WARRANTY & LIMITATION OF LIABILITY
Each Fluke Biomedical product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is three
years for the test tool and one year for its accessories. The warranty period 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 Biomedical authorized reseller, and does not apply to fuses,
disposable batteries or to any product which, in Fluke Biomedical's opinion, has been misused, altered, neglected or damaged by accident or abnormal
conditions of operation or handling. Fluke Biomedical 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 BioMedical does not warrant that software will be error free or operate without interruption.
Fluke Biomedical 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 Biomedical. Warranty support is available if product is purchased through a Fluke Biomedical authorized sales outlet or Buyer has
paid the applicable international price. Fluke Biomedical 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 Biomedical's warranty obligation is limited, at Fluke Biomedical's option, to refund of the purchase price, free of charge repair, or replacement of a defective
product which is returned to a Fluke Biomedical authorized service center within the warranty period.
To obtain warranty service, contact your nearest Fluke Biomedical authorized service center or send the product, with a description of the difficulty, postage and
insurance prepaid (FOB Destination), to the nearest Fluke Biomedical authorized service center. Fluke Biomedical assumes no risk for damage in transit. Following
warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination).If Fluke Biomedical determines that the failure was caused by misuse,
alteration, accident or abnormal condition of operation or handling, Fluke Biomedical 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 BIOMEDICAL SHALL NOT BE
LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, WHETHER ARISING
FROM BREACH OF WARRANTY OR BASED ON CONTRACT, TORT, RELIANCE OR ANY OTHER 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 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 USA, or
Fluke Industrial B.V., P.O. Box 90, 7600 AB, Almelo, The Netherlands
The 190M Series Medical ScopeMeter is manufactured in Romania for Fluke Biomedical, 6920 Seaway Blvd., Everett, WA, U.S.A.
SERVICE CENTERS
To locate an authorized service center, visit us on the World Wide Web:
http://www.flukebiomedical.com
or call Fluke Biomedical using any of the phone numbers listed below:
+1-800-850-4608 in U.S.A. and Canada
+31-40-2675314 in Europe
Table of Contents
Title Page
Safety 1
Using the Scope and Meter ................................................................................................. 11
Introduction .................................................................................................................. 1
Unpacking the Test Tool Kit ......................................................................................... 2
Safety Information: Read First ..................................................................................... 4
If Safety Features are Impaired .................................................................................... 7
Safe Use of Li-ion Battery Pack ................................................................................... 8
About this Chapter ..................................................................................................... 11
Powering the Test Tool .............................................................................................. 11
Resetting the Test Tool .............................................................................................. 12
Navigating a Menu ..................................................................................................... 13
Hiding Key Labels and Menus ................................................................................... 14
Key Illumination .......................................................................................................... 14
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190M Series Medical ScopeMeter
Users Manual
Input Connections ...................................................................................................... 15
Making Input Connections ......................................................................................... 15
Adjusting the Probe Type Settings ............................................................................. 16
Selecting an Input Channel ........................................................................................ 17
Displaying an Unknown Signal with Connect-and-View™.......................................... 18
Making Automatic Scope Measurements................................................................... 19
Freezing the Screen .................................................................................................. 20
Using Average, Persistence and Glitch Capture ........................................................ 21
Acquiring Waveforms ................................................................................................. 25
Pass - Fail Testing ..................................................................................................... 32
Analyzing Waveforms ................................................................................................ 33
Making Automatic Meter Measurements (Model 190M-4) ......................................... 33
Making Multimeter Measurements (Model 190M-2) ................................................... 36
Using The Recorder Functions .......................................................................................... 41
About this Chapter ..................................................................................................... 41
Opening the Recorder Main Menu ............................................................................. 41
Plotting Measurements Over Time (TrendPlot™) ...................................................... 42
Recording Scope Waveforms In Deep Memory (Scope Record) ............................... 45
Analyzing a TrendPlot or Scope Record .................................................................... 48
Using Replay, Zoom and Cursors ...................................................................................... 49
About this Chapter ..................................................................................................... 49
Replaying the 100 Most Recent Scope Screens ........................................................ 49
Zooming in on a Waveform ........................................................................................ 52
Making Cursor Measurements ................................................................................... 53
ii
Contents
Triggering on Waveforms ................................................................................................... 57
About this Chapter ..................................................................................................... 57
Setting Trigger Level and Slope ................................................................................. 58
Using Trigger Delay or Pre-trigger ............................................................................. 59
Automatic Trigger Options ......................................................................................... 60
Triggering on Edges ................................................................................................... 61
Triggering on External Waveforms (Model 190M-2) .................................................. 64
Triggering on Video Signals ....................................................................................... 65
Triggering on Pulses .................................................................................................. 67
Using Memory and PC ......................................................................................................... 71
About this Chapter ..................................................................................................... 71
Using the USB Ports .................................................................................................. 71
Saving and Recalling ................................................................................................. 72
Using FlukeView® ScopeMeter Software ................................................................... 80
Tips 81
About this Chapter ..................................................................................................... 81
Using the Standard Accessories ................................................................................ 81
Using the Independently Floating Isolated Inputs ...................................................... 83
Using the Tilt Stand .................................................................................................... 86
Kensington®-lock ........................................................................................................ 87
Attaching the Hanging Strap ...................................................................................... 87
Resetting the Test Tool .............................................................................................. 88
Suppressing Key Labels and Menus .......................................................................... 88
Changing the Information Language .......................................................................... 89
Adjusting the Contrast and Brightness ....................................................................... 89
Changing Date and Time ........................................................................................... 90
(continued)
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190M Series Medical ScopeMeter
Users Manual
Saving Battery Life ..................................................................................................... 90
Changing the Auto Set Options ................................................................................. 92
Maintaining the Test Tool ................................................................................................... 95
About this Chapter ..................................................................................................... 95
Cleaning the Test Tool ............................................................................................... 95
Storing the Test Tool ................................................................................................. 95
Charging the Batteries ............................................................................................... 96
Replacing the Battery Pack ........................................................................................ 97
Calibrating the Voltage Probes .................................................................................. 99
Displaying Version and Calibration Information ....................................................... 101
Displaying Battery Information ................................................................................. 101
Parts and Accessories ............................................................................................. 102
Optional Accessories ............................................................................................... 105
Troubleshooting ........ ...................... ..................... ..................... ...................... ......... 106
Specifications .................................................................................................................... 111
Introduction .............................................................................................................. 111
Oscilloscope ............................................................................................................ 112
Automatic Scope Measurements ............................................................................. 116
Meter Measurements for Model 190M-4 .................................................................. 119
Meter Measurements for Model 190M-2 .................................................................. 120
Recorder .................................................................................................................. 122
Zoom, Replay and Cursors ...................................................................................... 123
Miscellaneous ............... ........................... ............................ ........................... ......... 124
Environmental .......................................................................................................... 126
iv
Contents
Certifications ............................................................................................................ 126
Safety ............................................................................................................... 126
10:1 Probe VPS410 ................................................................................................. 129
Electromagnetic Immunity ........................................................................................ 130
Index ................................................................................................................................. 131
(continued)
v
190M Series Medical ScopeMeter
Users Manual
vi
Safety
Introduction
WWarning
Read “Safety Information” in this chapter
before using this instrument.
The descriptions and instructions in this manual apply to
all 190M Series Medical ScopeMeter versions (hereafter
referred to as the instrument or as the test tool). The
versions are listed below. The version 190M-4 appears in
most illustrations.
Input C and Input D, and the Input C and Input D selection
keys (
190M-4.
C
and
D
) are only present on the version
Version Description
190M-2 Two 200 MHz Scope Inputs (BNC),
One Meter Input (banana jacks).
190M-4 Four 200 MHz Scope Inputs (BNC).
190M Series Medical ScopeMeter
Users Manual
Unpacking the Test Tool Kit
The following items are included in your test tool kit:
1
76
2
98
11
Figure 1. ScopeMeter Test Tool Kit
3
12345 - 12345 - 12345
Note
When new, the rechargeable Li-ion battery is not
fully charged. See Chapter 7.
4
5
10
13
12
2
Unpacking the Test Tool Kit
The 190M Series Medical ScopeMeters include the
following items:
# Description
1 ScopeMeter Test Tool including:
− Side strap
− Battery pack BP290 for model 190M-2 or
BP291 for model190M-4
2 Hanging Strap (see Chapter 6 for mounting
instructions)
3 BC190/808 Universal Power Adapter
4 USB interface cable for PC connection (USB-A
to mini-USB-B)
5 Safety Information sheet + CD ROM with Users
Manual (multi-language) and FlukeView
ScopeMeter Software for Microsoft Windows
# Description
6
Voltage Probe Set (red)
7
Voltage Probe Set (blue)
8
Voltage Probe Set (gray), not for 190M-2
9
Voltage Probe Set (green), not for 190M-2
Each set includes:
a) 10:1 Voltage Probe, 300 MHz (red or blue or
gray or green)
b) Hook Clip for Probe Tip (black)
c) Ground Lead with Mini Alligator Clip (black)
d) Ground Spring for Probe Tip (black)
e) Insulation Sleeve (black)
10 MA 190 Accessory Kit
11 Test Leads with test pins (one red, one black),
for model 190M-2 only.
12 FlukeView Software Activation Key
13 Hard Shell Carrying Case
3
190M Series Medical ScopeMeter
Users Manual
Safety Information: Read First
Read all safety information before you use the test tool.
Specific warning and caution statements, where they
apply, appear throughout the manual.
A “Warning” identifies conditions and
procedures that are dangerous to the user.
A “Caution” identifies conditions and
procedures that can cause damage the test
tool or the equipment under test.
The following international symbols are used on the test
tool and in this manual:
X
Li-Ion
See explanation in
manual
Hazardous voltage
may be present
Safety approval
Battery safety
approval
Recycling information
Direct current
Do not dispose of this test tool as unsorted municipal
waste. Go to Fluke's website for recycling information.
Double Insulation
(Protection Class II)
Earth ground
Conforms to
relevant Australian
standards
Conforms to
European Union
directives.
Alternating current
RoHS China
4
Safety Information: Read First
XW Warning
To avoid electrical shock or fire, use only
power cords and plugs that meet local safety
regulations with the supplied BC190/808
Universal Power Adapter.
Note:
To accommodate connection to various line
power sockets, the BC190/808 Universal Power
Adapter is equipped with a male plug that must
be connected to a line cord appropriate for local
use. Since the adapter is isolated, the line cord
does not need to be equipped with a terminal for
connection to protective ground. Line power
cords with a protective grounding terminal are
more commonly available. It is OK to use
grounded line power cords, even though the
ground terminal is not required.
XW Warning
To avoid electrical shock or fire if a test tool
input is connected to more than 42 V peak,
30 V RMS or 60 V DC:
• Use only insulated voltage probes, test leads
and adapters supplied with the test tool, or
indicated by Fluke Biomedical as suitable for
the 190M Series Medical ScopeMeters.
• Before use, inspect voltage probes, test leads
and accessories for mechanical damage and
replace when damaged.
• Remove all probes, test leads and
accessories that are not in use.
• Always connect the power adapter first to the
ac outlet before connecting it to the test tool.
• Do not touch voltages more than 42 V peak ,
30 V RMS or 60 V DC.
• Do not connect the ground spring (Figure 1,
item d) to voltages more than 42 V peak, 30 V
RMS, or 60 V DC with respect to earth
ground.
• Do not apply more than the rated voltage,
between the terminals or between each
terminal and earth ground.
5
190M Series Medical ScopeMeter
Users Manual
XW Warning
• Do not apply input voltages above the rating
of the instrument. Use caution when using
1:1 test leads because the probe tip voltage
will be directly transmitted to the test tool.
• Do not use exposed metal BNC or banana
plug connectors. Fluke offers cables with
plastic, safety designed BNC connectors
suitable for the Medical ScopeMeter. See
Chapter 7, “Optional Accessories.”
• Do not insert metal objects into connectors.
• Use the test tool only as specified, or the
protection supplied by the test tool can be
compromised.
• Carefully read all instructions.
• Do not use the test tool if it operates
abnormally.
• Do not use and disable the test tool if it is
damaged.
• Keep fingers behind the finger guards on the
probes.
• Use only correct Measurement Category
(CAT), voltage, and amperage rated probes,
test leads, and adapters for the measurement.
XW Warning
• Do not exceed the Measurement Category
(CAT) rating of the lowest rated individual
component of a test tool, probe, or
accessory.
• Do not use the test tool around explosive
gas, vapor, or in damp or wet environments.
• Measure a known voltage first to make sure
that the test tool operates correctly.
• Examine the case before you use the test
tool. Look for cracks or missing plastic.
Carefully look at the insulation around the
terminals.
• Do not work alone.
• Comply with local and national safety codes.
Use personal protective equipment (approved
rubber gloves, face protection, and
flame resistant clothes) to prevent shock and
arc blast injury where hazardous live
conductors are exposed.
• The battery door must be closed and locked
before you operate the test tool.
6
If Safety Features are Impaired
XW Warning
• Do not operate the test tool with covers
removed or the case open. Hazardous voltage
exposure is possible.
• Remove the input signals before you clean
the test tool.
• Use only specified replacement parts.
Voltage ratings that are mentioned in the warnings are
given as limits for “working voltage.” They represent V AC
RMS (50 or 60 Hz) for ac sinewave applications and V DC
for DC applications.
Measurement Category IV refers to the overhead or
underground utility service of an installation.
Measurement Category III refers to distribution level and
fixed installation circuits inside a building.
Measurement Category II refers to local level, which is
applicable for appliances and portable equipment.
The terms “Isolated” or “Electrically floating” are used in
this manual to indicate a measurement in which the test
tool input BNC is connected to a voltage different from
earth ground.
The isolated input connectors have no exposed metal and
are fully insulated to protect against electrical shock.
The BNC jacks can independently be connected to a
voltage above earth ground for isolated (electrically
floating) measurements and are rated up to 1000 V RMS
CAT III and 600 V RMS CAT IV with respect to earth
ground.
If Safety Features are Impaired
Use of the test tool in a manner not specified may
impair the protection provided by the equipment.
Do not use test leads if they are damaged. Examine the
test leads for damaged insulation, exposed metal, or if the
wear indicator shows.
Whenever it is likely that safety has been impaired, turn off
the test tool and disconnect it from any external signal
sources and line power. Refer to qualified personnel.
Safety is likely to be impaired if, for example, the test tool
fails to perform the intended measurements or shows
visible damage.
7
190M Series Medical ScopeMeter
Users Manual
Safe Use of Li-ion Battery Pack
Battery pack models BP290 (26 Wh)/BP291 (52 Wh) have
been tested in accordance with the UN Manual of Tests
and Criteria Part III Subsection 38.3
(ST/SG/AC.10/11/Rev.3) – more commonly known as the
UN T1..T8 – tests, and have been found to comply with
the stated criteria. The battery packs have been tested
according to EN/IEC62133. As a result, they can be
shipped unrestricted internationally by any means.
Storing the Battery Pack Safely
• Do not store battery packs near heat or fire. Do not
store in sunlight.
• Do not remove a battery pack from its original
packaging until required for use.
• When possible, remove the battery pack from the
equipment when not in use.
• Fully charge the battery pack before storing it for an
extended period to avoid a defect.
• After extended periods of storage, it may be
necessary to charge and discharge the battery packs
several times to obtain maximum performance.
• Keep the battery pack out of the reach of children and
animals.
• Seek medical advice if a battery or part of it has been
swallowed.
Using the Battery Pack Safely
• Charge the battery pack before use. Use only Fluke-
approved power adapters to charge the battery pack.
Refer to Fluke’s safety instructions and Users Manual
for proper charging instructions.
• Do not leave a battery on prolonged charge when not
in use.
• The battery pack performs best when operated at
normal room temperature 20 °C ± 5 °C (68 °F ± 9 °F).
• Do not put battery packs near heat or fire. Do not put
in sunlight.
• Do not subject battery packs to severe impacts such
as mechanical shock.
• Keep the battery pack clean and dry. Clean dirty
connectors with a dry, clean cloth.
• Do not use any charger other than that specifically
provided for use with this equipment.
• Do not use any battery that is not specified for use
with the Medical ScopeMeter.
• Take careful notice of correct placement of the battery
in the test tool or the External Battery Charger.
• Do not short-circuit a battery pack. Do not keep
battery packs in a place where the terminals can be
shorted by metal objects (e.g. coins, paperclips, pens
or other).
8
Safe Use of Li-ion Battery Pack
• Never use a battery pack or charger showing visible
damage.
• Batteries contain hazardous chemicals that can cause
burns or explode. If exposure to chemicals occurs,
clean with water and get medical aid. If the battery
leaks, have the test tool repaired before use.
• Alteration of battery pack: do not attempt to open,
modify, reform or repair a battery pack that appears to
be malfunctioning, or that has been physically
damaged.
• Do not disassemble or crush battery packs.
• Use the battery only in the application for which it is
intended.
• Retain the original test tool information for future
reference.
Transporting the Battery Pack Safely
• The battery pack must adequately be protected
against short-circuit or damage during transport.
• Always consult the IATA guidelines describing safe air
transport of Li-ion batteries.
• Check-in luggage: battery packs are only allowed
when installed in the test tool.
• Hand carried luggage: a number of battery packs as
required for normal and individual use is allowed.
• Always consult national/local guidelines that are
applicable for shipment by mail or other transporters.
• A maximum of 3 battery packs may be shipped by
mail. The package must be marked as follows:
PACKAGE CONTAINS LITHIUM-ION BATTERIES
(NO LITHIUM METAL).
Disposing the Battery Pack Safely
• Always dispose of a worn out battery pack in
accordance with local regulations. Do not dispose of
the battery in unsorted municipal waste. Refer to the
Fluke website for recycling information.
• Dispose batteries only in discharged condition and
cover the battery terminals with insulating electrical
tape.
9
190M Series Medical ScopeMeter
Users Manual
10
About this Chapter
This chapter provides a step-by-step introduction to the
scope and meter functions of the test tool. The
introduction does not cover all of the capabilities of the
functions but gives basic examples to show how to use the
menus and perform basic operations.
Powering the Test Tool
Follow the procedure (steps 1 through 3) in Figure 2 to
power the test tool from a standard ac outlet. See
Chapter 6 for instructions on using battery power.
Chapter 1
Using the Scope and Meter
3
2
Turn the test tool on with the on/off key.
The test tool powers up in its last setup configuration.
BC190/808
Figure 2. Powering the Test Tool
1
11
190M Series Medical ScopeMeter
Users Manual
Resetting the Test Tool
If you want to reset the test tool to the factory settings, do
the following:
1
Turn the test tool off.
2
USER
3
Press and hold the USER key.
Press and release.
The test tool turns on, and you should hear a double beep,
indicating the reset was successful.
4
USER
Now look at the display; you will see a screen that looks
like Figure 3.
12
Release the USER key.
Figure 3. The Screen After Reset
Using the Scope and Meter
Navigating a Menu
1
Navigating a Menu
The following example shows how to use the test tool’s
menus to select a function. Subsequently follow steps
1 through 4 to open the scope menu and to choose an
item.
1
SCOPE
To hide the labels for full screen view, press the
CLEAR key. Press the CLEAR key again to show
the labels again. This toggling enables you to
check the labels without affecting your settings.
2
F4
Press the SCOPE key to display
the labels that define the present
use for the four blue function keys
at the bottom of the screen.
Note
Open the Waveform Options
menu. This menu is displayed at
the bottom of the screen. Actual
settings are shown on a yellow
background.
SCOPE
3a
1
ENTER
3b 3b 3b
ENTER ENTER ENTER
3a
Figure 4. Basic Navigation
3a
ENTER
3
b
Pressing the blue arrow keys lets you to step
through a menu without changing the settings.
To exit the menu at any moment press
(CLOSE).
Use the blue arrow keys to
highlight the item. Press the blue
ENTER key to accept the selection.
The next option will be selected.
After the last option the menu will
be closed.
Note
F4
13
190M Series Medical ScopeMeter
A
Users Manual
Hiding Key Labels and Menus
You can close a menu or hide key label at any time:
CLEAR
To display menus or key labels, press one of the yellow
menu keys, e.g. the
You can also close a menu using the
CLOSE.
Hide any key label, press again to display
the key label again (toggle function).
A displayed menu will be closed.
SCOPE key.
F4
soft key
Key Illumination
Some keys are provided with an illumination LED. For an
explanation of the LED function see the table below.
On: The display is off, test tool is running.
See Chapter 6 “Tips” section “Setting
the Display AUTO-Off timer.”
Off: in all other situations
On: Measurements are stopped, the
screen is frozen. (HOLD)
Off: Measurements are running. (RUN)
On: The range key, the move up/down
key, and the F1…F4 key labels, apply
to the illuminated channel key(s).
Off: -
HOLD
RUN
B
C
D
MANUAL
AUTO
TRIGGER
On: Manual operating mode.
Off: Automatic operating mode, optimizes
the trace position, range, time base
and triggering (Connect-and-View
On: signal is triggered
Off: signal is not triggered
Flashing: waiting for a trigger at “Single
Shot” or “On Trigger” trace update.
TM
)
14
Using the Scope and Meter
Input Connections
1
Input Connections
Look at the top of the test tool. The test tool has four
safety BNC jack signal inputs (models 190M-4), or two
safety BNC jack inputs and two safety 4-mm banana jack
inputs (models 190M-2).
Isolated input architecture allows independent floating
measurements with each input.
!
ALL INPUTS ISOLATED
!
ALL INPUTS ISOLATED
Figure 5. Measurement Connections
Making Input Connections
To make scope measurements connect the red voltage
probe to input A, the blue voltage probe to input B, the
grey voltage probe to input C and the green voltage probe
to input D. Connect the short ground leads of each voltage
probe to its own reference potential (See Figure 6).
For Meter measurements refer to the applicable section in
this chapter.
XWWarning
To avoid electrical shock use the insulation
sleeve (Figure 1 item e)) if you use the probes
without the probe tip or the ground spring.
− To maximally benefit from having
independently isolated floating inputs and to
avoid problems caused by improper use,
read Chapter 6: “Tips.”
− For an accurate indication of the measured
signal, it is necessary to match the probe to
the test tool”s input channel. See section
“Calibrating the voltage Probes” in
Chapter 7.
Notes
15
190M Series Medical ScopeMeter
A
Users Manual
Figure 6. Scope Connections
Adjusting the Probe Type Settings
To obtain correct measurement results the test tool probe
type settings must correspond to the connected probe
types. To select the input A probe setting do the following:
1
2
F3
3
4
ENTER
ENTER
Display the INPUT A key labels.
Open the PROBE ON A menu.
Select the probe type Voltage,
Current, or Temp
Voltage: select the voltage probe
attenuation factor
Current and Temp: select the
current probe or temperature
probe sensitivity
16
Using the Scope and Meter
A
A
A
Selecting an Input Channel
1
Selecting an Input Channel
To select an input channel, do the following:
Press the required channel key (A…D):
B
C
D
mV
RANGE
V
- the channel is turned on
- labels for the F1…F4 keys are
shown. Press the channel key again
to turn the labels off/on (toggle).
- the channel key illumination is turned
on
If the channel key is illuminated, the
RANGE and MOVE UP/DOWN keys
MOVE
are now assigned to the indicated
channel.
To assign the RANGE and MOVE up
down keys to multiple channels, keep
one channel key pressed, then press
another channel key.
Tip
To set multiple channels to the same range
(V/div) as, for example, input A, do the following:
− Select the input A measurement function,
probe setting and input options for all
involved channels
− press and hold
− press
− release
Notice that all pressed keys are illuminated now.
The MOVE UP/DOWN key and the RANGE
mV/V key applies to all involved input channels.
B
and/or
C
and/or
D
17
190M Series Medical ScopeMeter
Users Manual
Displaying an Unknown Signal with Connect-and-View™
The Connect-and-View feature lets the test tool display
complex, unknown signals automatically. This function
optimizes the position, range, time base, and triggering
and assures a stable display of virtually any waveform. If
the signal changes, the setup is automatically adjusted to
maintain the best display result. This feature is especially
useful for quickly checking several signals.
To enable the Connect-and-View feature when the test
tool is in MANUAL mode, do the following:
1
MANUAL
AUTO
The bottom line shows the range, the time base, and the
trigger information.
The waveform identifier (A) is visible on the right side of
the screen, as shown in Figure 7. The input A zero icon
at the left side of the screen identifies the ground level of
the waveform.
2
MANUAL
AUTO
Perform an Auto Set. AUTO appears at
the top right of the screen, the key
illumination is off.
Press a second time to select the
manual range again. MANUAL appears
at the top right of the screen, the key
illumination is on.
18
-
Figure 7. The Screen After an Auto Set
Use the light-gray
bottom of the keypad to change the view of the waveform
manually.
RANGE, TIME and MOVE keys at the
Using the Scope and Meter
Making Automatic Scope Measurements
1
Making Automatic Scope Measurements
The test tool offers a wide range of automatic scope
measurements. In addition to the waveforms you can
display four numeric readings: R
readings are selectable independently, and the
measurements can be done on the input A , input B, input
C or input D waveform.
To choose a frequency measurement for input A, do the
following:
1
2
SCOPE
F2
Display the SCOPE key labels.
Open the READING .. menu.
3
F1
4
ENTER
Select the reading number to be
displayed, for example READING 1
Select on A. Observe that the
highlight jumps to the present
measurement.
EADING 1 … 4. These
5
Observe that the top left of the screen displays the Hz
measurement. (See Figure 8.)
To choose also a Peak-Peak measurement for Input B as
second reading, do the following:
1
2
3
4
ENTER
SCOPE
F2
F1
ENTER
Select the Hz measurement.
Display the SCOPE key labels.
Open the READING .. menu.
Select the reading number to be
displayed, for example READING 2
Select on B. The highlight jumps
to the measurements field.
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190M Series Medical ScopeMeter
Users Manual
5
6
ENTER
ENTER
Open the PEAK menu.
Select the Peak-Peak
measurement.
Figure 8 shows an example of the screen with two
readings. The character size will be reduced when more
then two readings are on.
Figure 8. Hz and V peak-peak as Scope Readings
Freezing the Screen
You can freeze the screen (all readings and waveforms) at
any time.
1
2
HOLD
RUN
HOLD
RUN
Freeze the screen. HOLD appears
at the right of the reading area.
The key illumination is on.
Resume your measurement. The
key illumination is off.
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