Fluke 39, 41B user manual Input Connections, Using the Voltage Test Leads

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Input Connections

Input Connections

Refer to Figure 4 for a view of the two-input measurement scheme. To measure voltage, insert the red test lead in “V” and the black test lead in “COM.” Current measurement uses a BNC connector attached to “CURRENT PROBE.” Connect “V” and “COM” to measure only voltage; connect “CURRENT PROBE” to measure only current. Make all three connections for power measurements.

Observe the following connection guidelines:

Current

Clamp the Current Probe around the desired phase or neutral conductor. Make sure the arrow on the probe points toward the load (phase) or the source (neutral). The Tester is set up for use with an 80i-500s Current Probe. If you use another probe, you must make a selection change in the Configuration Screen.

Voltage: 3-phase, 4-Wire

Connect the red test lead to the desired phase voltage; connect the black test lead to neutral.

Voltage: 3-phase, 3-Wire, example D

Connect the red test lead to the phase conductor used by the Current Probe; connect the black test lead to another phase.

Using the Voltage Test Leads

The TL-24 Test Lead and AC-20 Test Clip combination (Figure 1), which allows for hands-free voltage measurements, is preferred when you are also using the Current Probe.

Note

Figure 4 shows suggested test lead and current probe usage.

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Contents Fluke 39/41B Limited Warranty & Limitation of Liability Service Centers Page Table of Contents Fluke 39/41B List of Tables List of Figures Using!Your Tester Safely AC Current Probe Safety Guidelines Uses for the Tester About This ManualUnpacking Unpacking Additional Items Model 41B Terminology Used in This Manual Automatic Power Down Battery ConsiderationsMemory Retention Gettingto Acquainted with Your Tester Getting Acquainted Input Connections Using the Voltage Test LeadsMeasurement Connections 1P Using the Current ProbeThree-Phase Measurement Connections For Balanced Circuits Three-Phase Power MeasurementsWtotal = W1 + W2 Three-Phase Measurement, Balanced or UnbalancedWtotal = W1 + W2 + W3 Keypad KeypadKeypad Number Key Descriptions Symbol Name & DescriptionNumber Symbol Name & Description Key Descriptions Number Name & Description Print Model 41B Key Descriptions Number Symbol Name & DescriptionDisplay Screen Display ScreenStatus Line DP ase Angle degrees. ± Screen Abbreviations Screen Usage Name and DescriptionScreen Usage Name and Description Screen AbbreviationsVolts rms includes dc component Special Messages Functions and Screen Modes Waveform Screen ModeWaveform Screens Functions and Screen Modes Harmonics Screens Harmonics Overload Screen Harmonics Zoom Screen Harmonics Zoom ModeText Screen Mode Text Screens VA Check Screen Typical VA Check Signatures Recording Measurements Record Screens THD RMS Power-Up ConfigurationConfiguration Screens Memory Screen Storing & Recalling Measurements Model 41B39/41B Store Using the Serial Cable Model 41B Serial Communications Model 41B Printing Model 41B Using PC Software with the Tester Model 41BSending to a Printer or PC Model 41B Applications Applications Plant Switch Gear Plant Switch Gear Service EntranceDistribution Transformer 1PWatts Text Screen Distribution TransformerDistribution Transformer 3P, 3C Watts Text Screen Electronic Equipment Load CenterReceptacle Load Center Neutral Current Measurement Generator Set Generator SetAdjustable Frequency Motor Drive Adjustable Frequency Speed Motor DriveBattery Replacement User MaintenanceCleaning Fuse ReplacementUser Maintenance If Your Tester Does Not Work Accessories and Replacement Parts Accessories and Replacement PartsFluke PN Replacement Parts DescriptionQty MV/A Isolated Input SpecificationsWatts Measurements Volt-Amps Harmonic Level 5% Using Smooth ~20Measurement Function Range/ResolutionAccuracy AC Amps AC VoltsWatts General Specifications Display Safety 39/41B