Fluke 80 Series III user manual Measuring Capacitance

Page 27

Making Measurements

The meter measures capacitance by charging the capacitor with a known current for a known period of time, measuring the resulting voltage, then calculating the capacitance. The measurement takes about 1 second per range. The capacitor charge can be up to 1.2 V.

The meter’s capacitance ranges are 5 nF, 0.05 μF, 0.5 μF, and 5 μF.

To measure capacitance, set up the meter as shown in Figure 5.

The following are some tips for measuring capacitance:

∙To speed up measurements of similar values, press Kto manually select the proper range.

∙To improve the accuracy of measurements less than 5 nF, use the relative (REL) mode to subtract the residual capacitance of the meter and leads.

87 III TRUE RMS MULTIMETER

MIN MAX

RANGE

HOLD

RELHz

4 1/2 DIGITS PEAK MIN MAX

1 Seconds

	mV
V	mA
V	A

VμA

OFF

A	mA μA	COM		V
				!
	400mA MAX			CAT II
	10A MAX	FUSED	1000V MAX
	FUSED	!

Select Capacitance

iy10f.eps

Figure 5. Measuring Capacitance

Image 27

Contents Series Lifetime Limited Warranty Table of Contents Series List of Tables Series List of Figures Series Introduction Series International Electrical SymbolsSafety Information Your Meter’s Features TerminalInputs Description Rotary Switch Positions Function Switch PositionPushbuttons Button Function Button FunctionButton Display Features Model 87 Shown Number Feature Display Features Indication100 ms ΜA, mA ΜF, nF Me, ke Hz, kHz, MHz Display Features NumberAutomatic Power-Off Power-Up OptionsInput Alert Feature Making MeasurementsMeasuring AC and DC Voltage Switch Box Testing for Continuity For in-circuit tests, turn circuit power off Measuring Resistance Isolating a Resistor DisconnectMeasuring Capacitance Using Conductance for High Resistance or Leakage TestsMeasuring Capacitance Series Testing a Diode Testing DiodesMeasuring AC or DC Current WWarningCurrent through one component Series Measuring Frequency All ranges Components of Duty Cycle Measurements Measuring Duty CycleAnalog Bar Graph Determining Pulse WidthModel 87 Bar Graph Models 83 and 85 Bar Graph 2 Digit Mode ModelMIN MAX Recording Mode MIN MAX Functions Touch Hold Mode Relative ModeZoom Mode Models 83 Maintenance Uses for the Zoom Mode Models 83General Maintenance Input contacts Testing the Fuses00.5 Ω Replace fuse OL Touch top halfReplacing the Fuses Replacing the BatteryService and Parts Battery and Fuse Replacement Replacement Parts Fluke Part Or Model NumberQuantity Replaceable Parts Fluke Part Number AccessoriesSpecifications KHz 20 kHz2 Models 85 and 87 AC Voltage Function SpecificationsModel 83 AC Voltage Function Specifications Model Resolution Model Model 853 Burden Voltage Typical Current Function SpecificationsΜA B Frequency Counter Specifications Capacitance and Diode Function SpecificationsAccuracy Frequency Counter Sensitivity and Trigger LevelsElectrical Characteristics of the Terminals MIN MAX Recording Specifications

80 Series III specifications

The Fluke 80 Series III digital multimeters are renowned for their robust engineering, precision, and versatility, making them a staple in the toolkit of electricians, engineers, and technicians. Launched by Fluke Corporation, a leading manufacturer of electronic test tools, the 80 Series III has set a benchmark in the multimeter industry for its reliability and performance.

One of the standout features of the Fluke 80 Series III is its wide measurement capabilities. The device can accurately measure AC and DC voltage, DC current, resistance, frequency, and capacitance. This comprehensive feature set allows users to tackle a variety of tasks, from simple household electrical checks to complex industrial applications. The meter's high input impedance prevents loading effects on circuits, ensuring accurate readings, especially in sensitive electronic applications.

Fluke's proprietary True-RMS technology is another defining characteristic of the 80 Series III. This technology ensures that the multimeter provides accurate readings for both non-linear loads and distorted waveforms, which are common in many modern electrical systems. This capability is particularly valuable in diagnosing issues in variable frequency drives, inverters, and other electronic systems that do not present traditional sinusoidal waveforms.

Durability is a key factor in the design of the Fluke 80 Series III. The multimeter is housed in a rugged, impact-resistant case that can withstand the rigors of fieldwork. It features a built-in protective holster with a probe holder, enhancing portability while safeguarding the device against drops and bumps. Furthermore, the 80 Series III boasts an IP67 rating for dust and water resistance, ensuring reliable performance in adverse conditions.

User-friendliness is also a significant aspect of the Fluke 80 Series III. The large, easy-to-read display, combined with intuitive controls, allows users to navigate its functions with ease. The multimeter features a backlight, enabling use in dimly lit environments, while the hold function ensures that readings can be captured and displayed even after disconnecting the probes.

In addition to these features, the Fluke 80 Series III offers various models to cater to specific needs, such as the 87V for highly accurate measurements in industrial environments and the 86V for temperature measurements with added thermocouple support. Each model maintains the high standards of quality and performance that Fluke is known for.

In summary, the Fluke 80 Series III digital multimeters combine advanced features, high accuracy, and rugged durability, making them indispensable tools for professionals who require reliable performance in challenging environments. Whether for routine maintenance or complex troubleshooting, the 80 Series III offers everything necessary to meet the demands of today’s electrical tasks.