Frequency Counter Sensitivity, Burden Voltage A, mA, µA | Fluke 189

Specifications	7
Frequency Counter Sensitivity

Frequency Counter Sensitivity

Approximate VAC Sensitivity

(RMS Sine Wave)1

Input Range

50mV

500mV

3000 mV

5V

50V

500V

1000 V

15 Hz to

100 kHz 2

5mV

20mV

500mV

0.5 V

5V

20V

100V

500 kHz 2

10mV

20mV 2000 mV

2.0V

5.0V

20V

100V

VAC Bandwidth 3

1MHz

1MHz

800kHz

950kHz

1MHz

1MHz

> 400 kHz

Approximate VDC

Trigger Levels 1

-5 mV & 5 mV

5 mV & 65 mV

140 mV & 200 mV

1.4V & 2.0 V

0.5V & 6.5 V

5 V & 65 V

5 V & 65 V

VDC

Bandwidth 3

1MHz

1MHz

90kHz

14kHz

> 400 kHz > 400 kHz > 400 kHz

. 1. Maximum input = 10 x Range (1000 V max). Noise at low frequencies and amplitudes may affect accuracy. 2. Useable at reduced sensitivity to 0.5 Hz and 1000 kHz.

. 3. Typical frequency bandwidth with full scale (or maximum 2 X 107 V-Hz product) RMS sine wave.

Burden Voltage (A, mA, µA)

Function	Range
mA - ∝ A	500.00	∝ A
	5,000 ∝	A
	50.000 mA
	400.00 mA
A	5.0000	A
	10.000	A

Burden Voltage (typical)

102 ∝ V / ∝ A

102 ∝ V / ∝ A

1.8mV / mA

1.8mV / mA

0.04V / A

0.04V / A

7-11

Image 95

Fluke 189 user manual Frequency Counter Sensitivity, Burden Voltage A, mA, µA

Contents

Model 187 Lifetime Limited Warranty Table of Contents Making Measurements Model 187 Iii Specifications Maintenance List of Tables Model 187 List of Figures Viii Contacting Fluke Safety InformationBefore You Start WWarning Safety Information Before You Start International Electrical Symbols Symbols Turning the Meter On Getting AcquaintedIntroduction Automatic Power Off Battery Considerations Automatic Backlight Off Low Battery Indication Rotary Switch Rotary Switch Pushbuttons Pushbuttons Blue Key Function Rotary Switch Selections Position Rotary Switch Function View MEM Rotary Switch Positions Button Pushbuttons Yellow Button Description Function Yellow Button Function Pushbuttons Button Description Primary Display Selecting the RangeUnderstanding the Display Secondary Display Bar Graph Display Features Number Feature Display Features Description 8.8.8 Display Features Number Display Features Description Number Feature FMS8888 HM8888 8.8 Display Features Number 51000 Input Terminals Using the Input Terminals Display Hold and AutoHOLD Using Display Hold Using MIN MAX Using AutoHOLD Model 187 Min Max Avg Using Fast MN MX Using Hold with MIN MAX or Fast MN MX Using Relative Mode REL Measuring Voltage Making Measurements AC Voltage Measurement Measuring AC Voltage DBm Display DB Measurements in AC Volts Functions Both AC and DC Voltage Measurements Measuring DC Voltage AC and DC Display AC over DC DC over AC Capacitors before measuring resistance Measuring Resistance OFF Automatically subtract this value Testing for Continuity Using Conductance for High Resistance Tests For in-circuit tests, turn circuit power off Conductance Measurement Measuring Capacitance Capacitance Measurement Testing Diodes Diode Test Electrically live circuits Measuring TemperatureShock, do not connect the thermocouples to Input Ranges Measuring Current Measuring Current Input Alert Feature Following are some tips for measuring current Measuring AC Current 11. AC Current Measurement Measuring DC Current Current through one component Total current to circuit 13. Functions Allowing Frequency Measurement Measuring Frequency 14. Hz Display Measuring Duty Cycle Measures Negative Pulse Measures Positive Pulse 16. Duty Cycle Display Measuring Pulse Width Start and Stop on Negative Slope Start and Stop on Positive Slope 18. Pulse Width Display Model 187 Logged Readings Memory Using Memory & Communications FeaturesTypes of Memory Saved Readings Memory Stopping Logging Storing Saved ReadingsStarting Logging To avoid electric shock, disconnect the test Viewing Memory Data MEM View Display Clearing Memory Using Communications 187 Model 187 Selecting Setup Options Changing the Default Settings Option Function Specific Setup SelectionsFactory Default Precondition Choices Common Setup Selections Adjusting the Temperature Offset Changing the Default Settings Setting the Power Off Timeout Selecting Display Resolution 3 1/2 or 4 1/2 Digits Setting the Line Main Frequency Setting the 24-Hour Clock Saving Setup Options Returning to Factory Defaults Testing the Fuses MaintenanceIntroduction General Maintenance Replace F2 if Replace F1 if Displayed Replacing the Batteries Battery and Fuse Replacement Case of Difficulty Replacing the FusesUser-Replaceable Parts MP8 MP9 Safety and Compliances Specifications Physical Specifications Feature Summary Basic Specifications Detailed Accuracy Specifications KHz-100 kHz Accuracy Function45-1 kHz 20 kHz DC a 500.00 Ω Capacitance Diode Test MIN MAX AVG Burden Voltage A, mA, µA Frequency Counter Sensitivity Input Characteristics