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Fluke 189 — руководство пользователя: режим удержания дисплея и его функции [32/96]
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Model 187 & 189
Users Manual
2-18
Using Display Hold
Press Q to enter the Display Hold mode and freeze
the present reading and its time stamp. New readings now
appear in the secondary display. See Figure 2-6. To exit
Display Hold mode, press Q again.
Note
The bar graph and secondary display may show
different units in Capacitance and Ohms due to
Autoranging.
In the MIN MAX mode, Display Hold functions like a
toggle, interrupting and resuming the MIN MAX
operations.
With Model 189, you cannot use Display Hold while
logging data. Model 189 allows you to save the frozen
reading to memory by pressing O R (SAVE).
AutoHOLD
tc040f.eps
Figure 2-6. Display Hold and AutoHOLD
Содержание
153- Model 187 189
- Users manual
- Model 187 189 true rms multimeter
- True rms multimeter
- August 2000 rev 6 02
- Lifetime limited warranty
- Table of contents
- Chapter title page
- Model 187 189
- Contents
- Model 187 189
- Table title page
- List of tables
- List of figures
- Figure title page
- Model 187 189
- Chapter 1
- Before you start
- Safety information
- Contacting fluke
- Warning
- Warning
- Caution
- Symbols
- Introduction
- Getting acquainted
- Chapter 2
- Turning the meter on
- Automatic power off
- Battery considerations
- Low battery indication
- Warning
- Automatic backlight off
- Rotary switch
- Pushbuttons
- Selecting the range
- Understanding the display
- Primary display
- Bar graph
- Secondary display
- Warning
- Dbm dbv
- Fast min max avg
- Hz khz mhz
- Nf µ f mf
- A ma µ a
- Using the input terminals
- Using display hold
- Warning
- Using min max
- Using autohold
- Using fast mn mx
- Using relative mode rel
- Using hold with min max or fast mn mx
- Measuring voltage
- Making measurements
- Introduction
- Chapter 3
- Measuring ac voltage
- Db measurements in ac volts functions
- Vr vx db
- Measuring dc voltage
- Log 20
- Both ac and dc voltage measurements
- Measuring resistance
- Figure 3 5 resistance measurement
- Making measurements measuring resistanc
- Testing for continuity
- Using conductance for high resistance tests
- On closed
- Off open
- Model 187 189 users manual
- For in circuit tests turn circuit power off
- Figure 3 6 continuity test
- Measuring capacitance
- Testing diodes
- Typical reading
- Press for diode test
- Model 187 189 users manual
- Forward bias reverse bias
- Figure 3 9 diode test
- Warning
- Measuring temperature
- Warning
- Measuring current
- Pulse width modulation
- Input alert tm feature
- Input alert feature
- Measuring ac current
- Figure 3 11 ac current measurement
- Making measurements measuring curren
- Measuring dc current
- Making measurements measuring curren
- Figure 3 12 dc current measurement
- Measuring frequency
- Measuring duty cycle
- Model 187 189 users manual
- Figure 3 15 duty cycle measurements
- Measuring pulse width
- Model 187 189 users manual
- Figure 3 17 pulse width measurements
- Types of memory
- Saved readings memory
- Logged readings memory
- Introduction
- Chapter 4
- Using memory communications features
- Storing saved readings
- Stopping logging
- Starting logging
- Warning
- Viewing memory data
- Using communications 187 and 189
- Clearing memory
- Selecting setup options
- Changing the default settings
- Introduction
- Chapter 5
- Adjusting the temperature offset
- Setting the power off timeout
- Selecting display resolution 3 1 2 or 4 1 2 digits
- Setting the 24 hour clock
- Setting the line main frequency
- Saving setup options
- Returning to factory defaults
- General maintenance
- Chapter 6
- Warning
- Testing the fuses
- Maintenance
- Introduction
- Replace f2 if or displayed
- Replace f1 if or displayed
- Model 187 189 users manual
- Ma a ma a
- Figure 6 1 testing the current fuses
- Warning
- Replacing the batteries
- Warning
- User replaceable parts
- Replacing the fuses
- In case of difficulty
- Specifications
- Safety and compliances
- Chapter 7
- Physical specifications
- Feature summary
- Basic specifications
- Detailed accuracy specifications
- Ω up to
- Frequency counter sensitivity
- Burden voltage a ma µa
- Input characteristics
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