Aktakom AM-1142 Manuale utente
Contents
TITLE PAGE
1. GENERAL INSTRUCTIONS …………………………………………………………….. 1
1.1 Precaution safety measures …………………………………………………………….. 1
1.1.1 Preliminary …………………………………………………………….. 1
1.1.2 During use …………………………………………………………….. 3
1.2 Symbols …………………………………………………………….. 4
1.3 Instructions …………………………………………………………….. 4
2. DESCRIPTION …………………………………………………………….. 6
2.1 Instrument Familiarization …………………………………………………………….. 6
2.2 LCD Display …………………………………………………………….. 7
2.3 Key pad …………………………………………………………….. 9
3. FUNCTION DESCRIPTION …………………………………………………………….. 11
3.1 General Functions …………………………………………………………….. 11
3.1.1 DATA HOLD mode …………………………………………………………….. 11
3.1.2 Manual ranging and Autorange mode …………………………………………………………….. 11
3.1.3 True RMS measurement …………………………………………………………….. 12
3.1.4 Relative measurement mode …………………………………………………………….. 12
3.1.5 Analog indication bar …………………………………………………………….. 12
3.1.6 Auto power off setting …………………………………………………………….. 13
3.2 Measurement Functions …………………………………………………………….. 14
3.2.1 AC and DC Voltage measurement …………………………………………………………….. 14
3.2.2 Resistance measurement …………………………………………………………….. 15
TITLE PAGE
3.2.3 Diode Test …………………………………………………………….. 16
3.2.4 Continuity Check …………………………………………………………….. 17
3.2.5 Capacitance measurement …………………………………………………………….. 18
3.2.6 Frequency measurement …………………………………………………………….. 19
3.2.7 Current measurement …………………………………………………………….. 20
3.2.8 Temperature measurement …………………………………………………………….. 21
3.2.9 PC Link …………………………………………………………….. 21
4. TECHNICAL SPECIFICATIONS …………………………………………………………….. 22
4.1 General specifications.. …………………………………………………………….. 22
4.2 Measurement specifications …………………………………………………………….. 23
4.2.1 AC Voltage …………………………………………………………….. 23
4.2.2 DC Voltage …………………………………………………………….. 24
4.2.3 Frequency …………………………………………………………….. 24
4.2.4 Duty cycle …………………………………………………………….. 25
4.2.5 Resistance …………………………………………………………….. 25
4.2.6 Diode Test …………………………………………………………….. 25
4.2.7 Continuity Check …………………………………………………………….. 26
4.2.8 Capacitance …………………………………………………………….. 26
4.2.9 Temperature …………………………………………………………….. 26
4.2.10 Current …………………………………………………………….. 27
5. MAINTENANCE …………………………………………………………….. 28
TITLE PAGE
5.1 General maintenance …………………………………………………………….. 28
5.2 Fuse replacement …………………………………………………………….. 28
5.3 Battery replacement …………………………………………………………….. 29
6. ACCESSORIES …………………………………………………………….. 29
6600 COUNTS DIGITAL MULTIMETER
USER'S MANUAL
1
1. GENERAL INSTRUCTIONS
This instrument complies with IEC 61010-1˖2001, CAT ċ1000V and CAT Ď600V overvoltage standards. See
Specifications.
To get the best service from this instrument, read carefully this user's manual and respect the detailed safety
precautions.
International symbols used on the Meter and in this manual are explained in chapter 1.2.
1.1 Precautions safety measures
1.1.1 Preliminary
* As the possibilities of high transient overvoltages occurred in today’s power systems increase, more stringent safety
standards are set for the electrical test equipment. Transients on electrical systems(power grid, feeder or branch
circuits) will trigger a series of incidents that may result in serious personal injury. To protect you against transients,
safty must be built into the test equipment.
6600 COUNTS DIGITAL MULTIMETER
USER'S MANUAL
2
Overvoltage
category In brief Examples
CATĉElectronic
• Protected electronic equipment.
• Equipment connected to (source) circuits in which measures are taken
to limit transient overvoltages to an appropriately low level.
• Any high-voltage, low-energy source derived from a highwinding
resistance transformer, such as the high-voltage section of a copier.
CATĊ
Single-phase
receptacle
connected loads
• Appliance, portable tools, and other household and similar loads.
• Outlet and long branch circuits.
• Outlets at more than 10 meters (30 feet) from CAT III source.
• Outlets at more that 20 meters (60 feet) from CAT IV source.
CAT ċ
Three-phase
distribution,
including
single-phase
commercial lighting
• Equipment in fixed installations, such as switchgear and polyphase
motors.
• Bus and feeder in industrial plants.
• Feeders and short branch circuits, distribution panel devices.
• Lighting systems in larger buildings.
• Appliance outlets with short connections to service entrance.
CAT Ď
Three-phase at
utility connection,
any outdoor
conductors
• Refers to the “origin of installation”; i.e., where low-voltage connection is
made to utility power.
• Electricity meters, primary overcurrent protection equipment.
• Outside and service entrance, service drop from pole to building, run
between meter and panel.
• Overhead line to detached building, underground line to well pump.
* When using this Multimeter, the user must observe all normal safety rules concerning:
protection against the dangers of electric current.
protection of the Multimeter against misuse.
* For your own safety, only use the test probes supplied with the instrument. Before use, check that they are in good
condition.
6600 COUNTS DIGITAL MULTIMETER
USER'S MANUAL
3
1.1.2 During use
* If the meter is used near noise generating equipment, be aware that display may become unstable or indicate large
errors.
* Do not use the meter or test leads if they look damaged.
* Use the meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired.
* Use extreme caution when working around bare conductors or bus bars.
* Do not operate the meter around explosive gas, vapor, or dust.
* Verify a Meter's operation by measuring a known voltage. Do not use the Meter if it operates abnormally. Protection
may be impaired. When in doubt, have the Meter serviced.
* Uses the proper terminals, function, and range for your measurements.
* When the range of the value to be measured is unknown, check that the range initially set on the multimeter is the
highest possible or, wherever possible, choose the autoranging mode.
* To avoid damages to the instrument, do not exceed the maximum limits of the input values shown in the technical
specification tables.
* When the multimeter is linked to measurement circuits, do not touch unused terminals.
* Caution when working with voltages above 60Vdc or 30Vac rms. Such voltages pose a shock hazard.
* When using the probes, keep your fingers behind the finger guards.
* When making connections, connect the common test lead before connecting the live test lead; when disconnecting,
disconnect the live test lead before disconnecting the common test lead.
* Before changing functions, disconnect the test leads from the circuit under test.
* For all dc functions, including manual or auto-ranging, to avoid the risk of shock due to possible improper reading,
verify the presence of any ac voltages by first using the ac function. Then select a dc voltage range equal to or
greater than the ac range.
* Disconnect circuits power and discharge all high-voltage capacitors before testing resistance, continuity, diodes, or
capacitance.
* Never perform resistance or continuity measurements on live circuits.
* Before measuring current, check the meter's fuse and turn off power to the circuit before connecting the meter to
the circuit.
* In TV repair work, or when carrying out measurements on power switching circuits, remember that high amplitude
6600 COUNTS DIGITAL MULTIMETER
USER'S MANUAL
4
voltage pulses at the test points can damage the multimeter. Use of a TV filter will attenuate any such pulses.
* Use just one 6F22 battery, properly installed in the Meter's battery case, to power the Meter.
* Replace the battery as soon as the battery indicator ( ) appears. With a low battery, the Meter might produce false
readings that can lead to electric shock and personal injury.
* Do not measure voltages above 1000V in Category III, or 600V in Category Činstallations.
* When in REL mode, the “REL” symbol is displayed. Caution must be used because hazardous voltage may be
present.
* Do not operate the Meter with the case (or part of the case) removed.
1.2 Symbols:
Symbols used in this manual and on the instrument:
Caution:refer to the instruction manual. Incorrect use may result in damage to the device or its
components.
~ AC (Alternating Current)
DC (Direct Current)
AC or DC
Earth ground
Double insulated
Fuse
Conforms to European Union directives
1.3 Instructions
* Remove test leads from the Meter before opening the Meter case or battery cover.
* When servicing the Meter, use only specified replacement parts.
* Before opening up the instrument, always disconnect from all sources of electric current and make sure you are
not charged with static electricity, which may destroy internal components.
* Any adjustment, maintenance or repair work carried out on the meter while it is live should be carried out only by
6600 COUNTS DIGITAL MULTIMETER
USER'S MANUAL
5
appropriately qualified personnel, after having taken into account the instructions in this present manual.
* A "qualified person" is someone who is familiar with the installation, construction and operation of the equipment
and the hazards involved. He is trained and authorized to energize and de-energize circuits and equipment in
accordance with established practices.
* When the instrument is opened up, remember that some internal capacitors can retain a dangerous potential even
after the instrument is switched off.
* If any faults or abnormalities are observed, take the instrument out of service and ensure that it cannot be used
until it has been checked out.
* If the meter is not going to be used for a long time, take out the battery and do not store the meter in high
temperature or high humidity environment.
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