Lutron Electronics DM-9131 Operation Manual
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Lutron Electronics DM-9131 Operation Manual

Lutron Electronics DM-9131 Operation Manual

Cat iii 1000v, true rms, l/c/r automotive tester
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CAT III 1000V, true rms, L/C/R
AUTOMOTIVE
TESTER
Model : DM-9131
OPERATION MANUAL
Your purchase of this
AUTOMOTIVE TEST
marks a step forward
for you into the field of
precision measurement.
Although this
Automotive test is a
complex and delicate
instrument, its durable
structure will allow
many years of use if
proper operating
techniques are
developed. Please read
the following
instructions carefully
and always keep this
manual within easy
reach.

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Summary of Contents for Lutron Electronics DM-9131

  • Page 1 CAT III 1000V, true rms, L/C/R AUTOMOTIVE TESTER Model : DM-9131 Your purchase of this AUTOMOTIVE TEST marks a step forward for you into the field of precision measurement. Although this Automotive test is a complex and delicate instrument, its durable...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. FEATURES....................2. SPECIFICATIONS................... 2-1 General Specifications................2-2 Electrical Specifications................3. FRONT PANEL DESCRIPTION..............4. PRECAUTIONS & PREPARATIONS FOR MEASUREMENT..................5. MEASURING PROCEDURE................5-1 Symbols & Units of Display ..............5-2 DC voltage, AC voltage true rms Measurement ......5-3 Resistance Measurement.................
  • Page 3 6. ADVANCED SETTING................. 8-3 Set Auto power OFF management..............8-4 Set beeper sound ON/OFF..............8-6 Set clock time(Year/Month/Date,Hour/Minute/Second)......8-7 Set Change the Temp. ℃, ℉ unit............7. MAINTENANCE................... 7-1 Replacement of Battery................7-2 Cleaning....................7-3 Replacement of Fuse................8. OPTIONAL ACCESSORIES & ADAPTERS ..........9.

  • Page 4: Features

    1. FEATURES Meet IEC 1010 CAT III 1000 V safety requirement. LCD with green light backligh, easy reading. 6000 counts A/D, high resolution. Multi function measurement. DCV, ACV, DCA, ACA, Resistance, Capacitance, Inductance, Frequency, Temperature, Diode, Continuity beeper, TACH, DWELL, POINT, 2000A Clamp Max.

  • Page 5: Specifications

    2. SPECIFICATIONS 2-1 General Specifications Display 60 mm x 39 mm large LCD display Measurement DCV, ACV, DCA, ACA, Resistance,Diode, Continuity beeper,Capacitance, Inductance, Frequency, Temperature. A/D counts no. 6000 counts. Range selection Auto range with manual range selecting. Special function Relative measurement Data hold To freeze the display reading on the...

  • Page 6: Electrical Specifications

    Accessories Red and Black Test Leads………………… 1 Set Included Instruction Manual........1 PC Optional Full line adapters : accessories ACA/DCA current adapter, Tachometer adapter, Humidity adapter, Pressure adapter, Light adapter, EMF adapter, Sound level adapter, High voltage probe. AC to DC 9V Adaptre…………………... AP-9VA Holster……………………………………...
  • Page 7 DC Current, AC Current ( True RMS ) DC Current, AC Current ( True RMS ) DC Current, AC Current ( True RMS ) DC Current, AC Current ( True RMS ) Range 10 A / 6 A Resolution 0.01 A / 0.001A Accuracy ±...
  • Page 8 Frequency Frequency Frequency Frequency Range 600 Hz/6 KHz/60 KHz/600 KHz/6 MHz/20 MHz Resolution 0.1 Hz/0.001 KHz/0.01 KHz/0.1 KHz/0.001 MHz/0.01 MHz Accuracy ±( 0.5% + 2d ) Sensitivity Min. 1 V rms, Max. 5 V rms. OHMS Range 600 /6 K /60 K /600 K /6 M /60 M Resolution 0.1 /0.001 K /0.01 K /0.1 K /0.001 M /0.01 M Accuracy...
  • Page 9 TACH Range 500 -30000RPM Resolution 10RPM Accuracy ±( 1% + 2d ) OVERLOAD 24V DC/AC RMS ( within 1 min ) PROTECTION DWELL CYLINDER 3 CYL 4CYL 5CYL 6CYL 8CYL DUTY CYCLE Range 0-120° 0-90° 0-72° 0-60° 0-45° 0-100% Resolution 0.1°...

  • Page 10: Front Panel Description

    3. FRONT PANEL DESCRIPTION Fig. 1 3-1 Display 3-10 Function rotary switch 3-2 MAX/MIN ( ▼ ) button 3-11 Temp./ohm/V/Cap. input terminal 3-3 TIME (SET) button 3-12 COM input terminal 3-4 REL(Backlight) button 3-13 DWELL / TACH input terminal 3-5 HOLD ( ▲ ) button 3-14 10A input terminal 3-6 RANGE button 3-15 Battery compartment/Cover...

  • Page 11: Precautions & Preparations For Measurement

    4. PRECAUTIONS & PREPARATIONS FOR MEASUREMENT 1) Ensure that the DC 9 V ( 006P, MIN1604 ) batteries are connected with the right polarity and placed in the battery compartment correctly. 2) Place the Red & Black Test Leads into the proper input terminal before making measurement.

  • Page 12: Measuring Procedure

    5. MEASURING PROCEDURE 5-1 Symbols & units of display Symbols Descriptions Units AUTO Appears when selecting " Automatic range " mode. MANU Appears when selecting " Manual range " mode. Appears when selecting DC mode. ( DC voltage or DC current ) Appears when selecting AC mode.

  • Page 13: Dc Voltage, Ac Voltage True Rms Measurement

    5-2 DC Voltage, AC voltage ture rms Measurement 1) Connect BLACK test lead into " COM " terminal ( 3-12, Fig. 1 ). 2) Connect RED test lead into " V " terminal ( 3-11, Fig. 1 ). 3) Select the " Function rotary switch " ( 3-10, Fig. 1 ) to the "...

  • Page 14: Dc Current, Ac Current True Rms Measurement

    5) Under the operation of " auto range " mode, push the " Range button " ( 3-6 Fig. 1 ) will execute the " Manual Range " mode and hold the range, the LCD will show the " MANU " marker. Under the manual range operation, push the "...

  • Page 15: Continuity Check

    Under the operation of " auto range " mode, push the " Range button " ( 3-6 Fig. 1 ) once will execute the " Manual Range " mode and hold the range, the LCD will show the " MANU " marker. Under the manual range operation, push the "...
  • Page 16 Fig. 2 Fig. 2 When connected as shown in Fig. 3, a reverse check on the diode is made. If the diode under test is good, "– – – –" will be displayed. If the diode under test is defective, "...

  • Page 17: Capacitance Measurement

    5-7 Capacitance Measurement Select the " Function rotary switch " ( 3-10, Fig. 1 ) to the " " position. Connect the tested capacitor to " Input terminals " directly. If the measured capacity existing the polarity, then should connect the " ＋ ＋ ＋ ＋ " polarity of the measured capacitor to the "...

  • Page 18: L/C Calibration

    5-9 L/C Calibration In order to improve the accuracy of a high / low impedance, Recommend doing open / short calibration Before measurement. Open / short calibration procedure: Simultaneously push " AC / DC " and " REL " button more to start open / short calibration,The display will show "OPEn", than 2 seconds, then push "enter"...

  • Page 19: Temperature Measurement

    5-11 Temperature Measurement Plug in the optional " Type K Temperature probe, TP-11 " into the input terminals, " TEMP input terminal " ( 3-11, Fig. 1 ) and the " COM input terminal " ( 3-12, Fig. 1 ) Select the "...

  • Page 20: Dwell Angle" Measurement

    Fig. 4 5-13 "DWELL ANGLE" Measurement Select the " Function rotary Switch " (3-10, Fig.1 ) to the " DWELL" position. Determine the % (duty cycle), 3 cyl, 4cyl, 5 cyl, 6 cyl . by push the " Range Button " (3-6, Fig.1 ). Connect black test lead into "...
  • Page 21 NOTE: Only traditional ignition system car that built in BREAKER POINTS needs to test DWELL ANGLE. If the car in ELECTRONIC IGNITION SYSTEM need not. Fig. 5...

  • Page 22: Point Check

    5-14 Point check Connect BLACK test lead into " COM " terminal ( 3-12, Fig. 1 ). Connect RED test lead into " V " terminal ( 3-11, Fig. 1 ). Select the " Function rotary switch " ( 3-10, Fig. 1 ) to the "...

  • Page 23: Relative Measurement

    B. IR TEMP This range is exactly same as " DC 200 mV " range. it can match the external adapter (if this adapter is built-in DC 200 mV output), then can get current values on the display directly. 5-16 Relative Measurement During the measurement of ACV, ACA, DCV, DCA, ohm, Capacitance, Inductance, Frequency and Temperature, the circuit will memorize the last measured values if push the...

  • Page 24: Max/Min. Value Record

    5-19 Max and Min. value record Application : To record the maximum and the minimum reading value during the measurement. Push the " MAX/MIN button " ( 3-2, Fig. 1 ) at once , the display will show the " REC " markers Start recording meter the "...
  • Page 25 Each digit indicates the following status : Start Word (0X02) When send the upper display data = 1 D12, D11 Annunciator for Display DC mV = 18 AC mV = 49 uH = 68 DC V = 34 AC V = 50 mH = 41 DC uA = 35 AC uA = 51...

  • Page 26: Advanced Setting

    6. ADVANCED SETTING Under do not execute the Datalogger function, press the " SET Button " ( 3-3, Fig. 1 ) continuously at least two seconds will enter the " Advanced Setting " mode. then press the " SET Button " ( 3-3, Fig. 1 ) once a while in sequence to select the six main function, the display will show : PoFF......

  • Page 27: Set Beeper Sound On/Off

    6-2 Set beeper sound ON/OFF When the display show " bEEP " Use the " ▲ Button " ( 3-5, Fig. 1 ) or " ▼ Button " ( 3-2, Fig. 1 ) to select the upper text to " YES " or "...

  • Page 28: Set Change The Temp. ℃, ℉ Unit

    Remark : After the time value is setting, the internal clock will run precisely even Power off if the battery is under normal condition ( No low battery power ). ℃ ℃ ℃ ℃ ℉ ℉ ℉ ℉ 6-4 Set Change the Temp. unit Use "...

  • Page 29: Maintenance

    7. MAINTENANCE 7. MAINTENANCE 7. MAINTENANCE 7. MAINTENANCE 7-1 Battery replacement 7-1 Battery replacement 7-1 Battery replacement 7-1 Battery replacement Remove test leads before Remove test leads before Caution : Caution : Remove test leads before Remove test leads before Caution : Caution : opening the battery cover !

  • Page 30: Replacement Of Fuse

    7-3 Replacement of Fuse Caution : When make the replacement, should change the right spec fuse. Fuse Rating : 10 A, Size : 5.2 mm dia. x 20 mm To be protected the circuit from overload current at " 10 A " range. When the uA, mA current range can not operation, please check if the Fuse A is broken or not: When the 10 A current range can not operation,...

  • Page 31: Optional Accessories & Adapters

    8. OPTIONAL ACCESSORIES & ADAPTERS RS232 cable * Computer interface cable. UPCB-06 * Used to connect the meter to the computer ( COM port ). USB cable * Computer interface cable. USB-11 * Used to connect the meter to the computer ( USB port ). Item Model Carrying Case...

  • Page 32: The Address Of After Service Center

    9. THE ADDRESS OF AFTER SERVICE CENTER...

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