Greenlee DM-860 Instruction Manual
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Greenlee DM-860 Instruction Manual

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MANUAL DE INSTRUCCIONES
Read and understand all of the instructions and safety
information in this manual before operating or servicing this tool.
Lea y entienda todas las instrucciones y la información sobre
seguridad que aparecen en este manual, antes de manejar estas
herramientas o darles mantenimiento.
Lire attentivement et bien comprendre toutes les instructions et
les informations sur la sécurité de ce manuel avant d'utiliser ou de
procéder à l'entretien de cet outil.
999 3795.6
INSTRUCTION MANUAL
INSTRUCTION MANUAL
MANUEL D'INSTRUCTIONS
© 2003 Greenlee Textron
DM-860

Digital Multimeter

Multímetro digital
Multimètre
numérique
IM 1470 REV 1 8/03

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  • Page 1: Digital Multimeter

    Lire attentivement et bien comprendre toutes les instructions et les informations sur la sécurité de ce manuel avant d‘utiliser ou de procéder à l‘entretien de cet outil. 999 3795.6 © 2003 Greenlee Textron IM 1470 REV 1 8/03...

  • Page 2: Purpose Of This Manual

    It also checks diodes and verifies continuity. The DM-860 warns the user with a beep and an error message on the LCD if the test lead is plugged into the mA/µA or A input terminal while the selector switch is not in the mA/µA or A position.

  • Page 3: Important Safety Information

    DM-860 Important Safety Information SAFETY ALERT SYMBOL This symbol is used to call your attention to hazards or unsafe practices which could result in an injury or property damage. The signal word, defined below, indicates the severity of the hazard. The message after the signal word provides information for preventing or avoiding the hazard.
  • Page 4 Important Safety Information Electric shock and fire hazard: • Do not expose this unit to rain or moisture. • Do not use the unit if it is wet or damaged. • Use test leads or accessories that are appropriate for the application. See the category and voltage rating of the test lead or accessory.
  • Page 5 DM-860 Important Safety Information Electric shock hazard: The fuses are an integral part of the overvoltage protection. When fuse replacement is necessary, see Specifications for the correct type, size, and capacity. Using any other type of fuse will void the overvoltage protection rating of the unit.
  • Page 6 Identification 1. LCD and bar graph display 2. Feature buttons (see explanations under Using the Features) 3. Selector to select a function or turn power off 4. Positive input terminal for high current measurements; negative input terminal for T 5. Positive input terminal for low current measurements; positive input terminal for T 6.

  • Page 7: Display Icons

    DM-860 Display Icons Automatic Ranging is enabled. Hold function is enabled. DC measurement is selected. AC measurement is selected. 12. – Polarity indicator Low battery Continuity 15. ∆ Relative Zero function is enabled. Crest Capture function is enabled. Unit is saving MIN/MAX.

  • Page 8: Using The Features

    Using the Features • Selector Turn to the desired setting, which turns the meter on. Use in combination with pushbuttons to choose a function or mode. Turn to OFF to turn meter off. • Intelligent Automatic Power Off (APO) To extend battery life, the meter shuts itself off after approximately 17 minutes of inactivity.
  • Page 9 DM-860 Using the Features (cont’d) • SELECT Press momentarily to toggle between functions, or to toggle between AC, DC, and DC + AC when measuring current and voltage. • RANGE Press once to enter the manual ranging mode. The icon will disappear from the display.
  • Page 10 The ability to read true RMS provides much more measurement versatility. The Greenlee DM-860 is a true RMS meter. The Waveforms and Crest Factors table shows some typical AC signals and their RMS values.

  • Page 11: Operation

    • If the unit does not function as expected on a known functioning circuit, replace the battery and/or fuses. • If the unit still does not function as expected, send the unit to Greenlee for repair. See the address shown under Warranty.
  • Page 12 Operation (cont’d) Settings Table The DM-860 stores the last used function of each selector position in its nonvolatile memory. If this is not the correct function when you turn the selector, press SELECT until the desired icon appears. To measure...
  • Page 13 DM-860 Operation (cont’d) Settings Table (cont’d) To measure set the press SELECT until connect and connect this selector to these icons appear the red the black characteristic… this symbol… on the display… lead to… lead to… Industrial Process and mA;...

  • Page 14: Typical Measurements

    Typical Measurements Voltage Measurement Current Measurement...
  • Page 15 DM-860 Typical Measurements Resistance Measurement Continuity Check Capacitance Measurement Note: For polarized capacitors, attach red probe to positive terminal and black probe to negative terminal of capacitor.
  • Page 16 Typical Measurements Diode Measurement Reverse Bias Forward Bias Temperature...
  • Page 17 DM-860 Using the Optional Software The DM-860 is compatible with Greenlee DMSC-9, an optically isolated RS-232 cable and software. It allows measurements to be logged to a personal computer. Install the software using standard installation procedures. Refer to the Read Me file on Disk 2 for instructions on using the software.
  • Page 18 Accuracy See the Specifications section for operating conditions and temperature coefficient. Accuracy is specified as follows: ± (a percentage of the reading + a fixed amount) at 23 °C ± 5 °C (73.4 °F ± 9 °F), 0% to 75% relative humidity. Specifications are for 50,000 counts mode.
  • Page 19 DM-860 Accuracy (cont’d) DC Current Range Accuracy Burden Voltage 500.00 µA ± (0.15% + 0.2 µA) 0.15 mV/µA 5000.0 µA ± (0.1% + 2.0 µA) 0.15 mV/µA ± (0.15% + 0.01 mA) 50.000 mA 3.3 mV/mA ± (0.1% + 0.2 mA) 500.00 mA...
  • Page 20 Accuracy (cont’d) DC Voltage Range Accuracy* Input Impedance ± (0.02% + 0.02 mV) 500.00 mV 10 MΩ, 80 pF nominal ± (0.02% + 0.0002 V) 5.0000 V ± (0.02% + 0.002 V) 50.000 V 10 MΩ, 30 pF nominal ± (0.04% + 0.02 V) 500.00 V ±...
  • Page 21 DM-860 Accuracy (cont’d) Frequency—Line Level Range: 5.0000 Hz to 200.000 kHz Accuracy: ± (0.002% + 0.004 Hz) Sensitivity (RMS) for Input Sinusoidal: 0.1 V min on 500 mV range 1 V min on 5 V range 10 V min on 50 V range...

  • Page 22: Specifications

    Specifications Display: LCD Normal Mode: 50,000 counts High Resolution Mode: 500,000 counts 6 digits (999,999 maximum count) for frequency 42-segment bar graph Polarity: Automatic Sampling Rate: 50,000 Counts Mode: 5 per second nominal 500,000 Counts Mode: 1.25 per second nominal Bar Graph Display: 60 per second Temperature Coefficient: Nominal 0.1 x (Accuracy) per °C below 18 °C from 0 °C to 18 °C (32 °F to 64 °F) or above 28 °C from 28 °C to 40 °C (82 to 104 °F) or otherwise specified...
  • Page 23 DM-860 Specifications (cont’d) Pollution Degree: 2 Battery: 9 V battery (NEDA 1604, JIS 006P or IEC 6F22) Electric shock hazard: Products covered by this manual were originally equipped with a different fuse in location FS1. These units can be identified by the TUV/GS logo on the front of the unit.

  • Page 24: Measurement Categories

    Statement of Conformity Greenlee Textron products are manufactured in accordance with the international ISO 9000 (2000) series of Quality Management Systems. The instrument enclosed has been checked and/or calibrated using equipment that is checked and calibrated to standards that are traceable to the National Institute for Standards and Technology (NIST).

  • Page 25: Maintenance

    DM-860 Maintenance Electric shock hazard: • Do not attempt to repair this unit. It contains no user-serviceable parts. • Do not expose the unit to extremes in temperature or high humidity. See Specifications. Failure to observe these precautions may result in injury and can damage the unit.
  • Page 26 Maintenance (cont’d) Battery Replacement (units with separate battery door) Disconnect the unit from the circuit. Turn the unit off. Remove the two screws from the battery compartment at the bottom of the case. Lift the battery compartment up. Replace the battery (observe polarity). Replace the battery compartment and screws.
  • Page 27 Lifetime Limited Warranty Greenlee Textron warrants to the original purchaser of these goods for use that these products will be free from defects in workmanship and material for their useful life, excepting normal wear and abuse. This warranty is subject to the same terms and conditions contained in Greenlee Textron’s standard one-year limited warranty.

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