Greenlee DM-200A Bedienungsanleitung

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.

DM-200A • DM-210A

DM-510A

Digital Multimeters

Multímetros digitales

Multimètres

numériques

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Description

The Greenlee DM-200A, DM-210A, and DM-510A Digital Multimeters are hand-held testing devices

with the following measurement capabilities: AC and DC voltage, AC and DC current, frequency, and

resistance. They also check diodes and verify continuity. An optional optically isolated computer inter-

face with software facilitates the recording of readings from the meter to a computer.

Other specialized capabilities and functions common to all meters include:

• Backlighted LCD for reading in dim conditions.

• Beep-Jack™ audible warning alerts the user with a beep and an error message on the LCD if the

test lead is plugged into the mA/A or Ainput terminal while the selector switch is not in the mA/A

or Aposition.

• Non-contact and single-probe voltage detection capability.

• Bar graph display, which responds more quickly than the numeric display — useful for detecting

faulty contacts, potentiometer clicks, and signal spikes.

• Relative zero mode.

• Data hold mode.

• Selectable automatic power off.

The DM-210A and DM-510A multimeters have the following additional capabilities: temperature

(K-type thermocouples only) and capacitance.

The DM-510A multimeter has an AutoCheck™ function for automatic selection of AC voltage, DC

voltage, and resistance with low input impedance to mask “ghost” voltages. The DM-510A also has a

crest function, which captures voltage or current signal peaks, as well as a recording function, which

stores the maximum and minimum input readings. The DM-510A is a true RMS meter.

Safety

Safety is essential in the use and maintenance of Greenlee tools and equipment. This instruction

manual and any markings on the tool provide information for avoiding hazards and unsafe practices

related to the use of this tool. Observe all of the safety information provided.

Purpose of This Manual

This instruction manual is intended to familiarize all personnel with the safe operation and maintenance

procedures for the Greenlee DM-200A, DM-210A, and DM-510A Digital Multimeters

Do not discard this product or throw away!

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DM-200A • DM-210A • DM-510A

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.

Immediate hazards which, if not avoided, WILL result in severe injury or death.

Hazards which, if not avoided, COULD result in severe injury or death.

Hazards or unsafe practices which, if not avoided, MAY result in injury or property damage.

Read and understand this material before operating or servicing this

equipment. Failure to understand how to safely operate this tool could result in

an accident causing serious injury or death.

Electric shock hazard:

Contact with live circuits could result in severe injury or death.

Important Safety Information

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.

® Registered: The color green for electrical test instruments is a registered trademark of Textron Innovations Inc.

AutoCheck and Beep-Jack are trademarks of BTC.

Microsoft and Windows are registered trademarks of Microsoft Corporation.

KEEP THIS MANUAL

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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.

• Inspect the test leads or accessory before use. They must be clean and dry, and the insulation

must be in good condition.

• Use this unit for the manufacturer’s intended purpose only, as described in this manual. Any other

use can impair the protection provided by the unit.

Failure to observe these warnings could result in severe injury or death.

Electric shock hazard:

• Do not apply more than the rated voltage between any two input terminals, or between any input

terminal and earth ground.

• Do not contact the test lead tips or any uninsulated portion of the accessory.

Failure to observe these warnings could result in severe injury or death.

Electric shock hazard:

• Do not operate with the case open.

• 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” for the correct type, size, and capacity. Using any other type of fuse will void

the overvoltage protection rating of the unit.

Failure to observe this warning could result in severe injury or death.

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DM-200A • DM-210A • DM-510A

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.

Incorrect settings or connections can result in a blown fuse.

• Using this unit near equipment that generates electromagnetic interference can result in unstable

or inaccurate readings.

Failure to observe these warnings could result in severe injury or death.

Electric shock hazard:

Do not change the measurement function while the test leads are connected to a component or

circuit.

Failure to observe this precaution may result in injury and can damage the unit.

Electric shock hazard:

Do not use the tester to measure voltages in circuits that could be damaged or activated by the

AutoCheck™ mode’s low input impedance (approximately 2.5 kΩ and 120 pF).

Failure to observe this precaution may result in injury and can damage the unit.

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. Refer to “Speciﬁcations.”

Failure to observe these precautions may result in injury and can damage the unit.

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Identiﬁcation

1. Display 4-digit LCD (maximum reading is 5999) and bar graph.

2. Feature buttons Refer to explanations in the “Using the Features” section.

3. Selector Selects a function or turns power OFF.

4. ΩV Positive input terminal for all measurements except current.

5. COM Negative, common, or ground input terminal for all measurements.

6. APositive input terminal for high current measurements.

7. mA µA Positive input terminal for low current measurements.

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DM-200A • DM-210A • DM-510A

13. Bar graph element

14. –Polarity indicator for bar graph

15. LoZ Low input impedance is active.

16. Low battery

17. – Polarity indicator

18. 8.8.8.8 Numeric display

19. ∆Relative zero function is enabled.

20. AC measurement is selected.

21. DC measurement is selected.

22. Automatic ranging is enabled.

23. Continuity

24. Hold function is enabled.

25. Crest capture function is enabled.

26. MAX Maximum is displayed or

being recorded.

MIN Minimum is displayed or

being recorded.

27. MMega (106)

28. Ohm

29. kKilo (103)

30. Hz Hertz (frequency in

cycles per second)

31. nNano (10-9)

32. FFarad

33. µMicro (10-6)

34. mMilli (10-3)

35. VVolt

36. AAmpere

37. Bar graph scale

38. `Overload (bar graph display)

Display Icons

27-28

29-30

31-32

33-36

20-21

13-14

22 23 24 25 26

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Using the Features

All Models

• SELECT: Press momentarily to toggle between functions.

• :Press and hold until backlight illuminates. Press and hold again to turn off. The backlight

automatically turns off after approximately 30 seconds to extend battery life.

• RANGE: Press once to enter the manual ranging mode. The icon will disappear from the

display. Press repeatedly to step through the ranges. Press and hold to return to the automatic

ranging mode.

Note: When using MAX/MIN, HOLD, or Δ mode, pressing RANGE will cause the meter to exit that

mode.

• REL: Finds the difference between two measurements. While taking a measurement, press REL to

set the display to zero. The ∆icon will appear on the display. Take the second measurement. The

value on the display will be the difference between the two measurements. Press again to exit this

mode.

• Hz: Press and hold until the meter beeps to enable frequency measurement. The frequency function

can be used with the selector in any voltage or current setting. Use the Vor Asettings for measuring

the frequency of sinusoidal waveforms. Use the mV setting for measuring the frequency of 3 volt or

5volt logic level, square waveform signals.

The sensitivity of the frequency measurement function varies with the measurement range. To

automatically select a sensitivity level, measure the voltage or current ﬁrst, and then press Hz. If the

reading becomes unstable or reads zero, press the RANGE button to select a different sensitivity

level.

The number of bar graph elements indicates the sensitivity selected:

• 1 element = 6 V, 6 A, 60 mA, or 600 μA

• 2 elements = 60 V, 10 A, 600 mA, or 6000 μA

• 3 elements = 600 V

• 4 elements = 1000 V

• HOLD : Press momentarily to hold the present value on the display. Press again to exit this mode.

This feature does not affect the bar graph.

• EF: Set the meter to any current or voltage function. Press and hold until the meter beeps to detect

the electric ﬁeld that surrounds current-carrying conductors. Signal strength is displayed as a series

of dashes on the display.

• Use the tester’s built-in antenna (located along the top, near the LCD) for tracing live circuits or

locating a break in a wire.

• For more precision, such as distinguishing between current-carrying and ground wires, connect

a test lead to the V input terminal and use it as a probe for direct contact veriﬁcation of AC

voltage.

• Automatic Power Off: To extend battery life, the meter will shut itself off after approximately

30minutes of inactivity. To restore power, press either the SELECT, CREST, or REC button or turn the

selector to OFF and then back on. To disable this feature, press SELECT while turning the meter on.

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DM-200A • DM-210A • DM-510A

• Disabling the Beeper: Hold down the RANGE button while turning the meter on to temporarily

disable the beeper feature. Turn the selector to OFF and then back on to enable the beeper.

DM-510A Only

• Low Impedance AutoCheck™ Mode: In this mode, the meter automatically selects the proper

measurement based on the input.

• If there is no input, “Auto” appears on the display.

• If the voltage is above approximately 1 volt AC or DC, voltage is displayed.

• If both AC and DC voltages are present, the larger voltage is displayed.

• If no voltage is present and there is resistance less than approximately 10 MΩ, resistance is

displayed. If the measured resistance is below the continuity threshold (between 10 Ω and 80 Ω),

then the continuity tone will sound.

This mode features low input impedance to mask stray or “ghost” voltage pickup. The input imped-

ance is approximately 2.5 kΩ at low voltage, increasing to approximately 375 kΩ at 1000 V.

The symbol “LoZ” indicates that the meter is in a low impedance mode. Do not use the AutoCheck™

mode on circuits that could be damaged or activated by such low input impedance. Instead use the

selector to select the high impedance AC or DC volts modes to minimize loading for such circuits.

Range-Lock and Function Feature: While in the AutoCheck™ mode, press the SELECT button

momentarily to lock the displayed function. Press the RANGE button momentarily to lock the dis-

played measurement range. Press either button repeatedly to step through the ranges or functions.

Energized Circuit Alert: If the resistance mode is locked in the AutoCheck™ mode and the leads

are placed across an energized circuit, the meter will emit an audible warning tone.

• REC: Press momentarily to activate the MAX/MIN recording mode. The input value is measured

every 50 ms in this mode. “MAX MIN” will appear on the display. The LCD will display the actual

input value. The meter will beep whenever the maximum or minimum is updated. Press repeatedly to

select the desired display: maximum, minimum, or actual input. Press and hold to exit this mode.

The automatic power off feature is disabled when using this function.

• CREST: Press momentarily to activate the crest recording mode. The input value is measured every

5 ms in this mode. and “MAX” will appear on the display. The LCD will display the maximum crest

value. Press repeatedly to select the desired display: maximum or minimum crest value. Press and

hold to exit this mode.

Automatic ranging and automatic power off are disabled when using this function.

Using the Features (cont’d)

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AC Measurement

AC measurements are usually displayed as RMS (root mean square) values. The RMS value is equal to

the value of a DC waveform, which would deliver the same power if it replaced the time-varying wave-

form. Two AC measurement methods are average-responding RMS calibrated and true RMS-reading.

The average-responding RMS calibrated method takes the average value of the input signal after full

wave rectiﬁcation, multiplies it by 1.11, and displays the result. This method is accurate if the input

signal is a pure sine wave. The DM-200A and DM-210A are average-responding meters.

The true RMS-reading method uses internal circuitry to read the true RMS value. This method is accu-

rate, within the speciﬁed crest factor limitations, whether the input signal is a pure sine wave, square

wave, triangle wave, half wave, or signal with harmonics. The ability to read true RMS provides much

more measurement versatility. The DM-510A is a true RMS meter.

The Waveforms and Crest Factors table shows some typical AC signals and their RMS values.

Waveforms and Crest Factors

Waveform

RMS Value 100 100 100 100

Average Value 90 100 87 64

Crest Factor*

(j)1.414 1 1.73 2

* The crest factor is the ratio of the peak value to the RMS value; it is represented by the Greek

letter j.

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