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

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52056270
1.800.561.8187
INSTRUCTION MANUAL
MANUAL DE INSTRUCCIONES
MANUEL D'INSTRUCTIONS
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.
© 2010 Greenlee Textron Inc.
www.
DM-860A
Digital
Multimeter
Multímetro
digital
Multimètre
numérique
information@itm.com
.com
7/10

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Summary of Contents for Greenlee DM-860A

  • Page 1 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. 52056270 © 2010 Greenlee Textron Inc. 7/10 1.800.561.8187 information@itm.com www. .com...

  • Page 2: Purpose Of This Manual

    (K-type thermocouples), frequency, duty cycle, resistance, conductance, and capacitance. It also checks diodes and verifies continuity. The DM-860A features a bar graph display that responds more quickly than the numeric display— useful for detecting faulty contacts, potentiometer clicks, and signal spikes. An optional optically isolated computer interface with software facilitates the recording of readings from the meter to a computer.

  • Page 3: Important Safety Information

    Electric shock hazard: Contact with live circuits could result in severe injury or death. All specifications are nominal and may change as design improvements occur. Greenlee Textron Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
  • 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. Refer to the category and voltage rating of the test lead or accessory.
  • Page 5 DM-860A Important Safety Information Electric shock hazard: Unless measuring voltage, current, or frequency, shut off and lock out power. Make sure that all capacitors are discharged. Voltage must not be present. Set the selector and connect the test leads so that they correspond to the intended measurement.

  • Page 6: Symbols On The Unit

    Identification 1. Display LCD and bar graph 2. Feature Buttons Refer to explanations under “Using the Features” 3. Selector Selects a function or turns power OFF 4. A Positive input terminal for high current measurements; negative input terminal for T 5.

  • Page 7: Display Icons

    DM-860A Display Icons Primary Display 31. M Mega (10 32. Ω Bar graph element 33. Hz Hertz (frequency in 9. – Polarity indicator for bar graph cycles per second) Bar graph scale 34. dBm Decibel 11. Δ Relative zero function is enabled.

  • Page 8: Using The Features

    Using the Features Dual Digital Display: This meter can display two measurements, such as AC voltage and frequency, at the same time. Display combinations are shown using large symbols to indicate the measurement on the primary display and small, raised symbols to indicate the measurement on the secondary display.
  • Page 9 DM-860A Using the Features (cont’d) dBm-Ω: The reference impedance is displayed for 1 second after selecting the dBm function. Momentarily press dBm-Ω to change the reference impedance. Refer to the “Specifications” section for the available values. Note: This is an AC voltage measurement calculated according to the formula...
  • Page 10 The ability to read true RMS provides much more measurement versatility. The Greenlee DM-860A is a true RMS meter. The Waveforms and Crest Factors table shows some typical AC signals and their RMS values.

  • Page 11: Operation

    Do not turn the meter off. Allow the diagnostic procedure to finish. If the message “C_Er” appears on the display when the meter is turned on, some ranges may be well outside of specification. To avoid incorrect measurements, stop using the meter and return it to Greenlee for recalibration.

  • Page 12: Settings Table

    Operation (cont’d) Settings Table The meter 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. The dual display options are shown along with the icons. In the table, “~V ”...
  • Page 13 DM-860A Operation (cont’d) Settings Table (cont’d) Press SELECT until Connect Connect the To measure this Set the selector to these icons appear on the red black lead characteristic … this symbol … the display … lead to … to … °C or °F (press RANGE...

  • Page 14: Typical Measurements

    Typical Measurements Voltage Measurement Current Measurement 1.800.561.8187 information@itm.com www. .com...
  • Page 15 DM-860A Typical Measurements Resistance Measurement Continuity Check Capacitance Measurement Diode Measurement Reverse Bias Forward Bias Note: For polarized capacitors, attach red probe to positive terminal and black probe to negative terminal of capacitor. 1.800.561.8187 information@itm.com www. .com...
  • Page 16 Typical Measurements Temperature 1.800.561.8187 information@itm.com www. .com...

  • Page 17: Installing The Software

    DM-860A Using the Optional Software The DM-860A is compatible with Greenlee DMSC-9U, an optically isolated computer interface cable ® and software. It allows measurements to be logged to a personal computer using the Microsoft ® Windows operating system. Installing the Software 1.
  • Page 18 Accuracy Refer to 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. True RMS Readings: Voltage and current accuracies are specified from 5% to 100% of the range unless otherwise specified.
  • Page 19 DM-860A Accuracy (cont’d) and AC + DC Voltage Accuracy* at Accuracy* at DC Accuracy* at Accuracy* at Range 20 Hz to 45 Hz and 45 Hz to 1 kHz 1 kHz to 20 kHz 20 kHz to 40 kHz 500.00 mV ± (1.5% + 0.4 mV) ±...
  • Page 20 Accuracy (cont’d) AC Voltage Accuracy* at Accuracy* at Accuracy* at Range 20 Hz to 45 Hz 45 Hz to 65 Hz 65 Hz to 10 kHz 500.00 mV ± (1.2% + 0.4 mV) ± (0.3% + 0.2 mV) ± (0.4% + 0.25 mV) 5.0000 V ±...
  • Page 21 DM-860A Accuracy (cont’d) Resistance and Conductance Typical Open Circuit Range Accuracy Voltage 500.00 Ω ± (0.07% + 0.10 Ω) 3.0 VDC 5.0000 kΩ ± (0.07% + 0.0002 kΩ) 50.000 kΩ ± (0.1% + 0.002 kΩ) 500.00 kΩ ± (0.1% + 0.02 kΩ) 1.3 VDC...
  • Page 22 Accuracy (cont’d) Frequency—Line Level Range: 5.000 Hz to 200.00 kHz Accuracy: ± (0.02% + 4 digits) AC Function Sensitivity AC Function Sensitivity Range Range Range (Sine RMS) Range (Sine RMS) 500 mV 100 mV 500 μA 50 μA 10 Hz to 200 kHz 0.5 V 5000 μA 500 μA...

  • Page 23: Specifications

    DM-860A Specifications Display: LCD Normal Mode: 50,000 counts High Resolution Mode: 500,000 counts Frequency: 99,999 counts 41-segment bar graph Polarity: Automatic Input Impedance: 10 MΩ, 60 pF nominal (80 pF for 500 mV ranges). Sampling Rate: 50,000 Counts Mode: 5 per second nominal 500,000 Counts Mode: 1.25 per second nominal...

  • Page 24: Measurement Categories

    Statement of Conformity Greenlee Textron Inc. is certified in accordance with ISO 9001 (2000) for our Quality Management Systems. The instrument enclosed has been checked and/or calibrated using equipment that is traceable to the National Institute for Standards and Technology (NIST).

  • Page 25: Maintenance

    DM-860A Maintenance Electric shock hazard: Before opening the case, remove the test leads from the circuit and shut off the unit. Failure to observe these warnings could result in severe injury or death. Electric shock hazard: The fuses are an integral part of the overvoltage protection. When fuse replacement is necessary, refer to “Specifications”...
  • Page 26 Lifetime Limited Warranty Greenlee Textron Inc. 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 Inc.’s standard one-year limited warranty.

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