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Fluke 189 [96/96] Input characteristics
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Model 187 & 189
Users Manual
7-12
Input Characteristics
Function Input Impedance (Nominal)
Volts, mV 10 MΩ, < 100 pF
Common Mode Rejection Ratio Normal Mode Rejection
DC Volts, mV >100 dB at dc, 50 Hz or 60 Hz ±0.1% >90 dB at 50 Hz or 60 Hz ± 0.1%
AC Volts, mV > 90 dB dc to 60 Hz
Full-Scale Voltage
Open Circuit Test Voltage To 5 MΩ 30 MΩ + nS
Ohms < 5 V 500 mV 3.1 V
Diode Test < 5 V 3.1000 V
Typical Short-Circuit Current
500 Ω 5 kΩ 50 kΩ 500 kΩ 5 MΩ 30 MΩ
Ohms 1 mA 100 µA 10 µA1 µA0.1 µA0.1 µA
Diode Test 1 mA typical
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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