Fluke 77 Series IV User Manual
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Fluke 77 Series IV User Manual

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Model 77 Series IV
Digital Multimeter
Users Manual

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Summary of Contents for Fluke 77 Series IV

  • Page 1 Model 77 Series IV Digital Multimeter Users Manual...

  • Page 2: Digital Multimeter

    Model 77 Series IV Digital Multimeter The Fluke Model 77 Series IV is a battery-powered, average Safety Information responding-rms indicating multimeter (hereafter "the Meter"), with A Warning identifies conditions and procedures that are a 6000-count, 3 3/4-digit display, and a bar graph.
  • Page 3 Model 77 Series IV Users Manual • Do not use a current measurement as an indication • Replace a blown fuse with exact replacement only for that a circuit is safe to touch. A voltage measurement continued protection against arc flash.

  • Page 4: Unsafe Voltage

    Digital Multimeter Unsafe Voltage Symbol Description Symbol Description   Battery (Low battery when shown on display) Consult user documentation. Conforms to relevant South Korean EMC  Ã Certified by TÜV SÜD Product Service. Standards  Conforms to relevant Australian EMC standards Measurement Category II is applicable to test and measuring circuits connected directly to utilization points (socket CAT II outlets and similar points) of the low-voltage MAINS installation.

  • Page 5: Battery Saver (Sleep Mode)

    Model 77 Series IV Users Manual Battery Saver (Sleep Mode) Rotary Switch Positions The Meter enters the "Sleep" mode and blanks out the display if Switch Measurement Function there is no function change or button press for 20 minutes. To...

  • Page 6: Display

    Digital Multimeter Display Display Symbol Meaning Direct current, alternating current. DC, AC Low battery. Replace battery.  All possible ranges. 610000mV Analog display. Bar graph Auto Range The Meter selects the range with the best resolution. Manual Range The user selects the range. ±...

  • Page 7: Min Max Avg Recording Mode

    Model 77 Series IV Users Manual MIN MAX AVG Recording Mode AutoHOLD Modes The MIN MAX AVG recording mode captures the minimum and XWWarning maximum input values, and calculates a running average of all To avoid electric shock, do not use the AutoHOLD mode readings.

  • Page 8: Manual Ranging And Autoranging

    Digital Multimeter Manual Ranging and Autoranging Manual Ranging and Autoranging Power-Up Options The Meter has both Manual range and Autorange modes. To select a Power-Up Option, hold down the button indicated while turning the Meter on. • In the Autorange mode, the Meter selects the range with the best resolution.

  • Page 9: Measuring Capacitance

    Model 77 Series IV Users Manual Making Basic Measurements Measuring Resistance The figures on the following pages show how to make basic measurements. When connecting the test leads to the circuit or device, connect the common (COM) test lead before connecting the live lead;...
  • Page 10 Digital Multimeter Making Basic Measurements Testing for Continuity Testing Diodes Good Diode Good Diode HOLD MIN MAX RANGE HOLD MIN MAX RANGE HOLD MIN MAX RANGE HOLD MIN MAX RANGE Single Beep AIK06F.EPS Forward Bias Reverse Bias Bad Diode Bad Diode HOLD MIN MAX RANGE...

  • Page 11: Measuring Frequency

    Model 77 Series IV Users Manual Measuring AC or DC Current Measuring Frequency XWWarning XWWarning To avoid personal injury or damage to the Meter: To avoid electrical shock, disregard the bar graph for frequencies >1 kHz. If the frequency of the measured •...

  • Page 12: Using The Bar Graph

    Digital Multimeter Using the Bar Graph Using the Bar Graph Cleaning The bar graph is like the needle on an analog Meter. There is an Wipe the case with a damp cloth and mild detergent. Do not use overload indicator (►) to the right, and a polarity indicator (±) to abrasives or solvents.

  • Page 13: Replacing The Battery And Fuses

    Model 77 Series IV Users Manual Replacing the Battery and Fuses   XWWarning To avoid shock, injury, or damage to the Meter: • Use ONLY fuses with the amperage, interrupt, voltage, and speed ratings specified. Disconnect test leads before opening case.

  • Page 14: General Specifications

    Digital Multimeter General Specifications General Specifications Accuracy is specified for 1 yr after calibration, at operating temperatures of 18 °C to 28 °C, with relative humidity at 0 % to 90 %. Accuracy specifications take the form of ±([ % of Reading ] + [ Counts ]). Maximum voltage between any terminal and earth ground ..........
  • Page 15 Model 77 Series IV Users Manual Battery Life ..............400 hrs typical (Alkaline) Size (H x W x L) ............. 4.3 cm x 9 cm x 18.5 cm Weight ................420 g Electromagnetic Compatibility (EMC) International ..............IEC 61326-1: Portable Electromagnetic Environment, IEC 61326-2-2.
  • Page 16 Digital Multimeter General Specifications Function Range Resolution Accuracy ± ( [ % of Reading ] + [ Counts ] ) 0.001 V AC Volts (Average 6.000 V 0.01 V 2.0 % + 2 responding) 60.00 V 0.1 V 600.0 V (45 Hz to 1 kHz) 1000 V DC mV...
  • Page 17 Model 77 Series IV Users Manual Function Range Resolution Accuracy ± ( [ % of Reading ] + [ Counts ] ) DC Amps 60.00 mA 0.01 mA 400.0 mA 0.1 mA 1.5 % + 2 6.000 A 0.001 A 10.00 A...
  • Page 18 Digital Multimeter General Specifications Input Impedance Common Mode Rejection Ratio Function Overload Protection Normal Mode Rejection (Nominal) (1 kΩ Unbalanced) Volts AC 1000 V >10 MΩ <100 pF >60 dB @ dc, 50 Hz or 60 Hz Volts DC 1000 V >10 MΩ...

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