Fluke 88 V User Manual
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Fluke 88 V User Manual

Automotive multimeter
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Model 88 V
Automotive Multimeter
Users Manual
PN 2166623
August 2004, Rev. 1, 1/06
© 2004, 2006 Fluke Corporation. All rights reserved. Printed in USA
All product names are trademarks of their respective companies.

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  • Page 1 ® Model 88 V Automotive Multimeter Users Manual PN 2166623 August 2004, Rev. 1, 1/06 © 2004, 2006 Fluke Corporation. All rights reserved. Printed in USA All product names are trademarks of their respective companies.
  • Page 2 LIMITED WARRANTY AND LIMITATION OF LIABILITY Each Fluke 20, 70, 80, 170 and 180 Series DMM will be free from defects in material and workmanship for its lifetime. As used herein, “life- time” is defined as seven years after Fluke discontinues manufacturing the product, but the warranty period shall be at least ten years from the date of purchase.

  • Page 3: Table Of Contents

    Table of Contents Title Page Introduction ........................1 Contacting Fluke ......................1 Safety Information ......................1 The Meter's Features ..................... 5 Power-Up Options ..................... 13 Automatic Power-Off ....................13 Input Alert Feature ....................13 Making Measurements ....................14 Measuring AC and DC Voltage.................. 14 Measuring Temperature ....................
  • Page 4 Model 88 V Users Manual Measuring Duty Cycle ....................29 Measuring Pulse Width ..................... 30 Bar Graph ........................30 Zoom Mode (Power Up Option Only) ................ 30 Uses for the Zoom Mode................... 30 HiRes Mode ........................31 MIN MAX Recording Mode .................... 31 Smooth Feature (Power Up Option Only) ..............
  • Page 5 (continued) Contents Service and Parts ......................60 Specifications ......................... 66 General Specifications....................66 Detailed Specifications ....................67...
  • Page 6 Model 88 V Users Manual...
  • Page 7 List of Tables Table Title Page Electrical Symbols ......................... 4 88 V Automotive Multimeter Front Controls................5 Input Terminals........................6 Rotary Switch Positions......................7 Pushbuttons .......................... 8 Display Features ........................11 Functions and Trigger Levels for Frequency Measurements..........28 MIN MAX Functions....................... 33 Battery Charge Voltages .......................
  • Page 8 Model 88 V Users Manual Frequency Counter Sensitivity and Trigger Levels..............72 Electrical Characteristics of the Terminals ................73 Min Max Recording Specifications ..................74...
  • Page 9 List of Figures Figure Title Page 88 V Automotive Multimeter Front ..................5 Measuring AC and DC Voltage ..................... 14 Testing for Continuity......................17 Measuring Resistance ......................19 Measuring Capacitance......................21 Testing a Diode ........................23 Measuring Current......................... 26 Components of Duty Cycle Measurements ................29 Measuring RPM with Inductive Pickup ..................
  • Page 10 Model 88 V Users Manual Measuring the No-Load Voltage of a Battery ................ 55 Testing for Continuity in a Switch..................57 Testing the Current Fuses..................... 59 Battery and Fuse Replacement..................... 61 Replaceable Parts......................... 64 viii...

  • Page 11: Introduction

    Degree 2 Contacting Fluke Measurement Category IV, 600 V, Pollution Degree 2 To contact Fluke, call one of the following telephone In this manual, a Warning identifies conditions and numbers: actions that pose hazards to the user. A Caution identifies...
  • Page 12 Model 88 V Users Manual XWWarning Do not apply more than the rated voltage, as marked on the Meter, between the To avoid possible electric shock or personal terminals or between any terminal and injury, follow these guidelines: earth ground. Use this Meter only as specified in this Never operate the Meter with the cover manual or the protection provided by the...
  • Page 13 Automotive Multimeter Safety Information XWCaution Do not operate the Meter around explosive gas, vapor, or dust. To avoid possible damage to the Meter or to Use only a single 9 V battery, properly the equipment under test, follow these installed in the Meter case, to power the guidelines: Meter.
  • Page 14 Model 88 V Users Manual Table 1. Electrical Symbols AC (Alternating Current) Earth ground DC (Direct Current) Fuse Hazardous voltage Conforms to European Union directives. Risk of Danger. Important information. Conforms to relevant Canadian Standards See Manual. Association directives. Battery. Low battery when displayed. Double insulated Continuity test or continuity beeper tone.

  • Page 15: The Meter's Features

    Automotive Multimeter The Meter's Features Table 2. 88 V Automotive Multimeter Front Controls The Meter's Features Number Description Tables 2 through 6 briefly describe the Meter's features. Display Pushbuttons Rotary Switch Input Terminals RANGE AutoHOLD MIN MAX Hz % 400mA FUSED 10A MAX FUSED...
  • Page 16 Model 88 V Users Manual Table 3. Input Terminals Terminal Description Input for 0 A to 10.00 A current measurements (20 A overload for 30 seconds maximum), current frequency, duty cycle, and pulse width measurements. mA A Input for 0 A to 400 mA current measurements (600 mA for 18 hrs.), current frequency, duty cycle, and pulse width.
  • Page 17 Automotive Multimeter The Meter's Features Table 4. Rotary Switch Positions Switch Position Function Any Position When the Meter is turned on, the Meter model number briefly appears on the display. AC voltage measurement DC voltage measurement for RPM o, press again for RPM n. Press 600 mV dc voltage range (T).
  • Page 18 Model 88 V Users Manual Table 5. Pushbuttons Switch Button Function Position Selects capacitance Selects temperature g K L Selects measurement of RPM o or RPM n (Yellow) Switches between dc and ac current Switches between dc and ac current Power-up Disables automatic power-off feature (Meter normally powers off in 30 minutes).
  • Page 19 Automotive Multimeter The Meter's Features Table 5. Pushbuttons (cont.) Switch Function Button Position Any switch Switches between the ranges available for the selected function. To return to autoranging, hold position the button down for 1 second. Switches between C and F when temperature is selected. 5___ Power-up Enables the Meter’s smoothing feature.
  • Page 20 Model 88 V Users Manual Table 5. Pushbuttons (cont.) Switch Button Function Position Continuity Turns the continuity beeper on and off MIN MAX Switches between Peak (250 s) and Normal (100 ms) response times. recording Hz, Duty Toggles the meter to trigger on positive or negative slope. Cycle bEEP Power-up...
  • Page 21 Automotive Multimeter The Meter's Features Table 6. Display Features Indication Number Feature Smoothing is active. Indicates negative readings. In relative mode, this sign indicates that the present input is less than the stored reference. Indicates the presence of a high voltage input. Appears if the input voltage is 30 V or greater (ac or dc).
  • Page 22 Model 88 V Users Manual Indication Number Feature Indication Number Feature Amperes (amps), Microamp, The Meter is in autorange A, A, mA Milliamp mode and automatically Auto selects the range with the best Volts, Millivolts V, mV resolution. Microfarad, Nanofarad F, nF The Meter is in manual range Manual...

  • Page 23: Power-Up Options

    Automotive Multimeter The Meter's Features MAX Recording is enabled, the Meter will not power off. Indication Number Feature To disable automatic power-off, refer to Table 4. Overload condition is detected.  Input Alert Feature Messages If a test lead is plugged into the mA/ A or A terminal, but bAtt Replace the battery immediately.

  • Page 24: Making Measurements

    Model 88 V Users Manual Making Measurements AC Voltage The following sections describe how to take Switch Box measurements with the Meter. RANGE AutoHOLD MIN MAX Measuring AC and DC Voltage Hz % The Meter's voltage ranges are 600.0 mV, 6.000 V, 60.00 V, 600.0 V, and 1000 V.

  • Page 25: Measuring Temperature

    Automotive Multimeter Making Measurements Measuring Temperature To measure temperature, do the following: The Meter measures the temperature of a type-K Connect a type-K thermocouple to the Meter’s COM thermocouple (included). Choose between degrees terminals. Celsius ( C) or degrees Fahrenheit ( F) by pushing C. Turn the rotary switch to XW Caution Press A to enter temperature mode.

  • Page 26: Testing For Continuity

    Model 88 V Users Manual Testing for Continuity XWCaution To avoid possible damage to the Meter or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before testing for continuity. The continuity test features a beeper that sounds as long as a circuit is complete.
  • Page 27 Automotive Multimeter Making Measurements For in-circuit tests, turn circuit power off. (closed) Activates (open) continuity beeper MIN MAX RANGE AutoHOLD MIN MAX RANGE AutoHOLD Hz % Hz % 400mA 400mA FUSED 10A MAX FUSED 10A MAX FUSED FUSED ayg03.eps Figure 3. Testing for Continuity...

  • Page 28: Measuring Resistance

    Model 88 V Users Manual Measuring Resistance The following are some tips for measuring resistance: XWCaution The measured value of a resistor in a circuit is often different from the resistor's rated value. To avoid possible damage to the Meter or to the equipment under The test leads can add 0.1 to 0.2 of error to...
  • Page 29 Automotive Multimeter Making Measurements In-Circuit Resistance Measurements Isolating a Potentiometer Circuit Power Disconnect RANGE AutoHOLD MIN MAX Hz % Isolating a Resistor 400mA FUSED 10A MAX FUSED Disconnect aug06f.eps Figure 4. Measuring Resistance...

  • Page 30: Using Conductance For High Resistance Or Leakage Tests

    Model 88 V Users Manual Using Conductance for High Resistance or The following are some tips for measuring conductance: Leakage Tests High-resistance readings are susceptible to Conductance, the inverse of resistance, is the ability of a electrical noise. To smooth out most noisy readings, circuit to pass current.

  • Page 31: Measuring Capacitance

    Automotive Multimeter Making Measurements Measuring Capacitance XWCaution Select To avoid possible damage to the Meter or to Capacitance the equipment under test, disconnect circuit RANGE AutoHOLD MIN MAX power and discharge all high-voltage Hz % capacitors before measuring capacitance. Use the dc voltage function to confirm that the capacitor is discharged.

  • Page 32: Testing Diodes

    Model 88 V Users Manual Testing Diodes A short beep sounds if the diode is good (<0.85 V). A continuous beep sounds if the reading is 0.100 V. This XWCaution reading would indicate a short circuit. The display shows To avoid possible damage to the Meter or to “OL”...
  • Page 33 Automotive Multimeter Making Measurements Forward Bias Reverse Bias Typical Reading MIN MAX RANGE AutoHOLD MIN MAX RANGE AutoHOLD Hz % Hz % Single Beep 400mA 400mA FUSED FUSED 10A MAX 10A MAX FUSED FUSED Shorted Open Bad Diode Bad Diode MIN MAX RANGE AutoHOLD...

  • Page 34: Measuring Dc Or Ac Current

    Model 88 V Users Manual The Meter's current ranges are 600.0 A, 6000 A, Measuring DC or AC Current 60.00 mA, 400.0 mA, 6000 mA, and 10 A. XWWarning To measure current, refer to Figure 7 and proceed as To avoid possible electric shock or personal follows: injury, never attempt an in-circuit current Turn off power to the circuit.
  • Page 35 Automotive Multimeter Making Measurements Break the circuit path to be tested. Touch the black probe to the more negative side of the break; touch the red probe to the more positive side of the break. Reversing the leads will produce a negative reading, but will not damage the Meter.
  • Page 36 Model 88 V Users Manual Total current to circuit Circuit Power: OFF to connect meter. ON for measurement. OFF to disconnect meter. MIN MAX RANGE AutoHOLD Hz % Current through one component 400mA FUSED 10A MAX FUSED ayg07f.eps Figure 7. Measuring Current...

  • Page 37: Measuring Frequency

    Automotive Multimeter Making Measurements The following are some tips for measuring frequency: Measuring Frequency If a reading shows as 0 Hz or is unstable, the input The Meter measures the frequency of a voltage or current signal may be below or near the trigger level. You can signal by counting the number of times the signal crosses usually correct these problems by selecting a lower a threshold level each second.
  • Page 38 Model 88 V Users Manual Table 7. Functions and Trigger Levels for Frequency Measurements Approximate Function Range Typical Application Trigger Level 6 V, 60 V, ± 5 % of scale Most signals. 600 V, 1000 V High-frequency 5 V logic signals. (The dc-coupling of the L function can 600 mV ±...

  • Page 39: Measuring Duty Cycle

    Automotive Multimeter Making Measurements Measuring Duty Cycle frequency function, you can change the slope for the Meter's counter by pressing E. Duty cycle (or duty factor) is the percentage of time a signal is above or below a trigger level during one cycle For 5 V logic signals, use the 6 V dc range.

  • Page 40: Measuring Pulse Width

    Model 88 V Users Manual Measuring Pulse Width In the 60 V range, for example, the major divisions on the scale represent 0, 15, 30, 45, and 60 V. An input of -30 V For a periodic waveform (its pattern repeats at equal time lights the negative sign and the segments up to the intervals), you can determine the amount of time that the middle of the scale.

  • Page 41: Hires Mode

    Automotive Multimeter HiRes Mode For zero adjustments, set the Meter to the desired MIN MAX Recording Mode function, short the test leads together, press ; then The MIN MAX mode records minimum and maximum connect the leads to the circuit under test. Adjust the input values.

  • Page 42: Smooth Feature (Power Up Option Only)

    Model 88 V Users Manual The average reading is useful for smoothing out unstable Smooth Feature (Power Up Option Only) inputs, calculating power consumption, or estimating the When the input signal changes rapidly, “smoothing” percentage of time a circuit is active. provides a steadier reading on the display by averaging multiple samples.
  • Page 43 Automotive Multimeter Smooth Feature (Power Up Option Only) Table 8. MIN MAX Functions Button MIN MAX Function Enter MIN MAX recording mode. The Meter is locked in the range displayed before you entered MIN MAX mode. (Select the desired measurement function and range before entering MIN MAX.) The Meter beeps each time a new minimum or maximum value is recorded.

  • Page 44: Autohold Mode

    Model 88 V Users Manual Note AutoHOLD Mode The bar graph continues to display the actual XWWarning voltage. To avoid possible electric shock or personal Using the Meter for Automotive injury, do not use AutoHOLD mode to Applications determine that circuits are without power. The AutoHOLD mode will not capture This section uses some typical automotive testing unstable or noisy readings.

  • Page 45: Measuring Rpm

    Automotive Multimeter Using the Meter for Automotive Applications Measuring RPM On some systems with non-resistor plugs, the pickup may need to be moved away from plug or use the AC RPM can be measured in either the dc volts or ac volts function.
  • Page 46 Model 88 V Users Manual Turn rotary switch to For 4-cycle engines that fire once every other revolution, press A once to select RPMo. For systems that fire every revolution (2-cycle engines), and for DIS waste spark systems, press A twice to select RPMn.
  • Page 47 Automotive Multimeter Using the Meter for Automotive Applications RANGE AutoHOLD MIN MAX Hz % 400mA FUSED 10A MAX FUSED ayg21f.eps Figure 9. Measuring RPM with Inductive Pickup...

  • Page 48: Testing Map Or Bp/Map Sensors With Frequency Output

    Model 88 V Users Manual Note Testing MAP or BP/MAP Sensors with Frequency Output Frequency measurements can be made on voltage (V dc, V ac, or mV dc) or current inputs To use the Frequency function to check barometric (mA/A ac or dc). In automotive applications, pressure/ manifold absolute pressure (BP/MAP) sensors: however, most Frequency measurements will be made using the volts ac function.
  • Page 49 Automotive Multimeter Using the Meter for Automotive Applications RANGE AutoHOLD MIN MAX Hz % 400mA FUSED 10A MAX FUSED ayg22f.eps Figure 10. Testing MAP or BP/MAP Sensors with Frequency Output...

  • Page 50: Measuring Internal Resistance Of An Ignition Coil

    Model 88 V Users Manual XWWarning Measuring Internal Resistance of an Ignition Coil To avoid possible electric shock or damage to the Meter turn engine off before making When measuring resistance, be sure that the contact measurements. between the probes and the circuit is clean. Dirt, oil, paint, rust or other foreign matter seriously affect resistance.
  • Page 51 Automotive Multimeter Using the Meter for Automotive Applications RANGE AutoHOLD RANGE AutoHOLD MIN MAX MIN MAX Hz % Hz % 400mA 400mA FUSED FUSED 10A MAX 10A MAX FUSED FUSED ayg11f.eps Figure 11. Measuring Internal Resistance on an Ignition Coil...

  • Page 52: Measuring Pulse Width On A Port Fuel Injector

    Model 88 V Users Manual Measuring Pulse Width on a Port Fuel Injector In Pulse Width (and Duty Cycle), the meter defaults to (-) trigger slope; (time signal is low). Press E ( TRIGGER) to toggle between (±) trigger slopes. The slope is indicated by the + or - sign next to “Trig”...
  • Page 53 Automotive Multimeter Using the Meter for Automotive Applications MIN MAX RANGE AutoHOLD Hz % 400mA FUSED 10A MAX FUSED ayg12f.eps Figure 12. Measuring Pulse Width on a Port Fuel Injector...

  • Page 54: Testing Ripple Voltage On An Alternator

    Model 88 V Users Manual Testing Ripple Voltage on an Alternator Ripple voltage or ac voltage can be measured by switching your meter to ac and connecting the black lead to a good ground and the red lead to the “BAT” terminal on the back of the alternator (not at the battery).
  • Page 55 Automotive Multimeter Using the Meter for Automotive Applications MIN MAX RANGE AutoHOLD Hz % 400mA FUSED 10A MAX FUSED ayg16f.eps Figure 13. Testing Ripple Voltage on an Alternator...

  • Page 56: Measuring Voltages On A Typical Oxygen Sensor

    Model 88 V Users Manual Measuring Voltages on a Typical Oxygen Sensor Watch the bar graph sweep as oxygen voltage changes. Depending on the driving conditions, the oxygen voltage will rise and fall, but it usually averages around 0.450 V dc. Shut the engine off and insert test lead in the input terminals shown in Figure 14.
  • Page 57 Automotive Multimeter Using the Meter for Automotive Applications MIN MAX RANGE AutoHOLD Hz % 400mA FUSED 10A MAX FUSED ayg14f.eps Figure 14. Measuring Voltages on a Typical Oxygen Sensor...

  • Page 58: Measuring Starter Circuit Voltage Drop

    Model 88 V Users Manual Measuring Starter Circuit Voltage Drop Since AutoHOLD ignores readings of 0, it will retain the voltage drop after you quit cranking. Insert test leads in the input terminals shown in Figure 15. Set the rotary switch to .
  • Page 59 Automotive Multimeter Using the Meter for Automotive Applications MIN MAX RANGE AutoHOLD Hz % – 400mA FUSED 10A MAX FUSED ayg17f.eps Figure 15. Measuring Starter Circuit Voltage Drop...

  • Page 60: Testing The Throttle Position Sensor Voltage

    Model 88 V Users Manual Testing the Throttle Position Sensor Resistance Testing the Throttle Position Sensor Voltage Insert test leads in the input terminals shown in The throttle position sensor sends a signal to the Figure 16. computer indicating the position of the throttle. To test the throttle position sensor: Set the rotary switch to N.
  • Page 61 Automotive Multimeter Using the Meter for Automotive Applications MIN MAX RANGE AutoHOLD Hz % 400mA FUSED 10A MAX FUSED ayg15f.eps Figure 16. Testing the Throttle Position Sensor Resistance...

  • Page 62: Isolating A Circuit Causing A Current Drain

    Model 88 V Users Manual XWWarning Isolating a Circuit Causing a Current Drain To avoid electric shock or personal injury, do Insert the test leads in the input terminals shown in not attempt this test on a lead-acid battery Figure 17. that has recently been recharged.
  • Page 63 Automotive Multimeter Using the Meter for Automotive Applications MIN MAX RANGE AutoHOLD Hz % 400mA FUSED 10A MAX FUSED ayg18f.eps Figure 17. Isolating Circuit Causing Current Drain...

  • Page 64: Measuring System Voltage

    Model 88 V Users Manual Table 9. Battery Charge Voltages Measuring System Voltage Bleed the surface charge from the battery by turning the Voltage % Charge headlights on for 1 minute. Measure the voltage across 12.60 to 12.72 V the battery terminal with the lights off. When possible, individual cell specific gravity should be checked with a 12.45 V hydrometer.
  • Page 65 Automotive Multimeter Using the Meter for Automotive Applications MIN MAX RANGE AutoHOLD Hz % 400mA FUSED 10A MAX FUSED ayg19f.eps Figure 18. Measuring the No-Load Voltage of a Battery...

  • Page 66: Testing For Continuity In A Switch

    Model 88 V Users Manual XWCaution Testing for Continuity in a Switch To avoid possible damage to the meter or to A continuity test verifies that you have a closed circuit. equipment under test, disconnect the power The continuity function detects opens or shorts as fast as to the circuit under test and discharge all 1 millisecond.
  • Page 67 Automotive Multimeter Using the Meter for Automotive Applications RANGE AutoHOLD MIN MAX Hz % 400mA FUSED 10A MAX FUSED ayg20f.eps Figure 19. Testing for Continuity in a Switch...

  • Page 68: Maintenance

    Model 88 V Users Manual Testing the Fuse Maintenance If a test lead is plugged into the mA/ A or A terminal and XWWarning the rotary switch is turned to a non-current function, the Meter chirps and flashes “LEAd” if the fuse associated To avoid possible electric shock or personal with that current terminal is good.

  • Page 69: Replacing The Battery

    Automotive Multimeter Maintenance Replacing the Battery Good F2 fuse: 00.0 Replace the battery with a 9 V battery (NEDA A1604, 00.5 6F22, or 006P). Replace fuse: OL RANGE AutoHOLD MIN MAX Hz % Warning To avoid false readings, which could lead to Touch top half of input contacts possible electric shock or personal injury,...

  • Page 70: Replacing The Fuses

    To order parts and accessories, refer to “Contacting Remove the fuse by gently prying one end loose, Fluke”. then sliding the fuse out of its bracket. Install ONLY specified replacement fuses with the amperage, voltage, and speed ratings shown in...
  • Page 71 Automotive Multimeter Service and Parts ayg33f.eps Figure 21. Battery and Fuse Replacement...
  • Page 72 Model 88 V Users Manual Table 10. Replacement Parts Fluke Part or Model Item Description Qty. Number 2139179 Battery, 9 V F1 W Fuse, 0.440 A, 1000 V, FAST 943121 F2 W Fuse, 11 A, 1000 V, FAST 803293 H2-4...
  • Page 73 Automotive Multimeter Service and Parts Table 10. Replacement Parts (cont.) Fluke Part or Model Item Description Qty. Number MP390-391 Access Door Fastener 948609 LCD, 4.5 DIGIT,TN, Transflective, Bar Graph, OSPR80 2065213 Light pipe 2074057 Keypad 2105884 2166623 Model 88 V Automotive Multimeter Users Manual (this manual)
  • Page 74 Model 88 V Users Manual Holster MP31 MP15 Tilt Stand H1 (4) MP10 MP11 MP22 H5, 6 ayg34f.eps Figure 22. Replaceable Parts...
  • Page 75 RPM80 Inductive Clamp (included) TL224 Sure Grip Test Lead Set, Heat-Resistant Silicone (included) TL71 Silicone Insulated Test Lead Set TP220 Sure Grip Test Probe Set (included) TPAK ToolPak Magnetic Hanger (included) Fluke accessories are available from an authorized Fluke distributor.

  • Page 76: Specifications

    Model 88 V Users Manual Specifications General Specifications Maximum Voltage between any Terminal and Earth Ground: ............. 1000 V Fuse Protection for mA or A inputs: ....44/100 A, 1000 V FAST Fuse Fuse Protection for A input:........ 11 A, 1000 V FAST Fuse Display: ................

  • Page 77: Detailed Specifications

    Automotive Multimeter Specifications Size with Holster and Flex-Stand:......2.06 in x 3.86 in x 7.93 in (5.2 cm x 9.8 cm x 20.1 cm) Weight: ................12.5 oz (355 g) Weight with Holster and Flex-Stand: ......22.0 oz (624 g) Safety: .................Complies with ANSI/ISA S82.01-2004, CSA 22.2 No. 1010.1:2004 to 1000 V Overvoltage Category III, IEC 664 to 600 V Overvoltage Category IV.
  • Page 78 Model 88 V Users Manual Table 13. DC Voltage, Resistance, and Conductance Function Specifications Function Range Resolution Accuracy 6.000 V 0.001 V (0.1 % + 1) 60.00 V 0.01 V (0.1 % + 1) 600.0 V 0.1 V (0.1 % + 1) 1000 V (0.1 % + 1) 600.0 mV...
  • Page 79 Automotive Multimeter Specifications Table 15. Current Function Specifications Function Range Resolution Accuracy Burden Voltage (typical) 60.00 mA 0.01 mA (1.2 % + 2) 1.8 mV/mA 400.0 mA 0.1 mA (1.2 % + 2) 1.8 mV/mA (45 Hz to 2 kHz) 6.000 A 0.001 A (1.2 % + 2)
  • Page 80 Model 88 V Users Manual Table 16. Capacitance and Diode Function Specifications Function Range Resolution Accuracy 10.00 nF 0.01 nF (1 % + 2) 100.0 nF 0. 1 nF (1 % + 2) 1.000 F 0.001 F (1 % + 2) 10.00 F 0.01 F (1 % + 2)
  • Page 81 Automotive Multimeter Specifications Table 17. Frequency Counter Specifications Pulse Width Range Resolution Function Range Resolution Accuracy (ms) (ms) Frequency 199.99 0.01 Hz (0.01 % + 1) 1999.9 (0.5 Hz to 200 kHz, 1999.9 0.1 Hz (0.01 % + 1) 5.00 0.01 pulse width >...
  • Page 82 Model 88 V Users Manual Table 18. Frequency Counter Sensitivity and Trigger Levels Minimum Sensitivity Approximate Trigger Level Input Range (DC Voltage Function) 5 Hz - 20 kHz 0.5 Hz - 200 kHz 600 mV dc 70 mV (to 400 Hz) 70 mV (to 400 Hz) 40 mV 600 mV ac...
  • Page 83 Automotive Multimeter Specifications Table 19. Electrical Characteristics of the Terminals Common Mode Input Impedance Overload Rejection Ratio Function Normal Mode Rejection (nominal) Protection (1 k unbalance) 1000 V 10 M < 100 pF > 120 dB at dc, > 60 dB at 50 Hz or 60 Hz 50 Hz or 60 Hz 1000 V 10 M <...
  • Page 84 Model 88 V Users Manual Table 20. Min Max Recording Specifications Nominal Response Accuracy 100 ms to 80 % Specified accuracy 12 counts for changes > 200 ms in duration (dc functions) 120 ms to 80 % Specified accuracy 40 counts for changes > 350 ms and inputs > 25 % of range (ac functions) 250 s (peak) Specified accuracy...

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