Amprobe ACD-6 Pro Manuel utilisateur

USER'S

MANUAL

ACD-6 Pro

ACD-6 TRMS Pro

Versatile Clamp-on

Multimeter Series

1) SAFETY

This manual contains information and warnings that must be followed for operating the

instrument safely and maintaining the instrument in a safe operating condition. If the

instrument is used in a manner not specified by the manufacturer, the protection

provided by the instrument may be impaired.

The meter meets the requirements for double insulation to IEC61010-2-032(1994),

EN61010-2-032(1995), UL3111-2-032(1999):

Category III 600 Volts AC and DC.

PER IEC61010 OVERVOLTAGE INSTALLATION CATEGORY

OVERVOLTAGE CATEGORY II

Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be

supplied from the fixed installation.

Note – Examples include household, office, and laboratory appliances.

OVERVOLTAGE CATEGORY III

Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations.

Note – Examples include switches in the fixed installation and some equipment for

industrial use with permanent connection to the fixed installation.

OVERVOLTAGE CATEGORY IV

Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the

installation. Note – Examples include electricity meters and primary over-current

protection equipment.

TERMS IN THIS MANUAL

!" WARNING identifies conditions and actions that could result in serious injury or

even death to the user.

!" CAUTION identifies conditions and actions that could cause damage or

malfunction in the instrument.

WARNING

To reduce the risk of fire or electric shock, do not expose this product to rain or

moisture. The meter is intended only for indoor use.

To avoid electrical shock hazard, observe the proper safety precautions when working

with voltages above 60 VDC or 30 VAC rms. These voltage levels pose a potential

shock hazard to the user.

Inspect test leads, connectors, and probes for damaged insulation or exposed metal

before using the instrument. If any defects are found, replace them immediately.

Do not touch test lead tips or the circuit being tested while power is applied to the

circuit being measured. To avoid accidentally short circuit of bare (uninsulated)

hazardous live conductors or busbars, switch them off before insertion and removal of

the current clamp jaws. Contact with the conductor could result in electric shock. Keep

your hands/fingers behind the hand/finger barriers that indicate the limits of safe

access of the meter and the test leads during measurement.

CAUTION:

Disconnect the test leads from the test points before changing meter functions.

INTERNATIONAL ELECTRICAL SYMBOLS

! Caution ! Refer to the explanation in this Manual

Caution ! Risk of electric shock

Earth (Ground)

Double Insulation or Reinforced insulation

Fuse

AC--Alternating Current

DC--Direct Current

2) CENELEC Directives

The instruments conform to CENELEC Low-voltage directive 73/23/EEC and

Electromagnetic compatibility directive 89/336/EEC

3) PRODUCT DESCRIPTION

This user's manual uses only representative model(s) for illustrations. Please refer

specification details for function availability to each model.

1) Transformer Clamp Jaw for AC

current magnetic field pick up

2) Hand/Finger Barrier to indicate

the limits of safe access of the meter

during measurement

3) Push-buttons for special functions

& features

4) Input Jack for all functions

EXCEPT non-invasive ACA current

function

5) Common (Ground reference)

Input Jack for all functions EXCEPT

non-invasive ACA current function

6) Slide-switch Selector to turn the

power ON/OFF and Select a

function

7) 3-3/4 digits 4000 counts LCD

display

8) Jaw trigger for opening the

transformer clamp jaw

9) Jaw center Indicators, at where

best ACA accuracy is specified

10) Jaw marking lines for ACA

position error indication

4) OPERATION

DC Voltage and AC Voltage functions

Inputs are made through the test lead terminals.

Note: DC 400.0mV range is designed with 1000M# high input impedance for least

current drain in measuring small signals, and can cope better with most commercially

available voltage output transducers/adapters. The non-zero display reading is normal

when the meter inputs are open circuit, which will not affect actual measurement

accuracy. The meter will show a close to zero reading when the inputs are shorted.

Open input is actually a floating condition, which is not a zero-volt-input condition.

Note: AC 400.0mV range selection is by RANGE button manually, and is specified from

AC 40mV & up for ACD-6 Pro and from AC 60mV & up for True RMS model ACD-6

TRMS Pro.

CAUTION

Using Resistance, Continuity or Diode function in a live circuit will produce false results

and may damage the instrument. In many cases the suspected component must be

disconnected from the circuit to obtain an accurate measurement reading.

# Resistance, and Continuity functions

Inputs are made through the test lead terminals. Slide-switch on defaults at #. Press

SELECT button momentarily to select Continuity function, which is convenient for

checking wiring connections and operation of switches. A continuous beep tone

indicates a complete circuit.

Diode test function

Inputs are made through the test leads terminals. Place slide-switch to # position.

Press SELECT button momentarily 2 times to select Diode test function. Normal

forward voltage drop (forward biased) for a good silicon diode is between 0.400V to

0.900V. A reading higher than that indicates a leaky diode (defective). A zero reading

indicates a shorted diode (defective). An OL indicates an open diode (defective).

Reverse the test leads connections (reverse biased) across the diode. The digital

display shows OL if the diode is good. Any other readings indicate the diode is resistive

or shorted (defective).

ACA Current clamp-on function

Inputs are made through the clamp jaws for non-invasive ACA current measurements.

CAUTION

Press the jaw trigger and clamp the jaws around only one single conductor of a circuit

for load current measurement. Make sure the jaws are completely closed, otherwise

this will introduce measurement errors. Enclosing more than one conductor of a circuit

will result in differential current (like identifying leakage current) measurement.

Adjacent current-carrying devices such as transformers, motors and conductor wires

will affect measurement accuracy. Keep the jaw’s tip away from them as much as

possible to minimize influence.

HOLD

The hold feature freezes the display for later viewing. Press the HOLD button

momentarily to activate and to exit the hold feature.

Relative zero mode

Relative zero mode allows the user to offset the meter consecutive measurements

with the displaying reading as the reference value. The display will now show readings

relative to the stored reference value. That is, display = reading - stored value. Press

the button momentarily to activate and to exit relative zero mode.

Manual or Auto-ranging

Press the RANGE button momentarily to select manual-ranging mode, and the meter

will remain in the range it was in, the LCD symbol turns off. Press the button

momentarily again to step through the ranges. Press and hold the RANGE button for 1

second or more to resume auto-ranging mode.

Auto Power Off (APO)

When the meter is on, the Auto Power Off (APO) feature will switch the meter to sleep

mode automatically after approximately 30 minutes of no slide-switch or push button

operations to extend battery life. To wake up the meter from APO, press the buttons

momentarily or set the slide-switch to the OFF position and then slide back on again.

Always set the slide-switch to the OFF position manually when the meter is not in use.

5) MAINTENANCE

WARNING

To avoid electrical shock, disconnect the meter from any circuit, remove the test leads

from the input jacks, and turn OFF the meter before opening the case. Do not operate

with open case.

Trouble Shooting

If the instrument fails to operate, check batteries and test leads etc., and replace as

necessary. Double check operating procedure as described in this user’s manual

If the instrument voltage-resistance input terminal is subjected to a high voltage

transient (caused by lightning or switching surge to the system) by accident or

abnormal conditions of operation, the series fusible resistors will be blown (become

high impedance) just as standard fuses to protect the user and the instrument. Most

measuring functions through this terminal will then be open circuit. The series fusible

resistors and the spark gaps should then be replaced by qualified technician. Refer to

the LIMITED WARRANTY section for obtaining warranty or repairing service.

Cleaning and Storage

Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives

or solvents. If the meter is not to be used for periods of longer than 60 days, remove

the batteries and store them separately

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