Edison MNT070 User manual

OPERATING MANUAL
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ORDER CODE: EDI-516-3600K
MODEL MNT070
3 in 1 Digital Multimeter and Network
Maintenance Tester
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CONTENT
1. GENERAL INSTRUCTIONS ......................................................................................2
2. DESCRIPTION ..........................................................................................................4
3. OPERATING INSTRUCTION ......................................................................................6
4. SPECIFICATIONS....................................................................................................10
5. MAINTENANCE ......................................................................................................12
6. PACK CONTENT ....................................................................................................13
1.
GENERAL INSTRUCTIONS
This multimeter has been designed according to IEC1010 standards for
electronic measuring instruments with an over-voltage category (CAT II 1000V,
CAT III 600V) and pollution level 2.
To get the best service from this instrument, read carefully this user manual and
respect the detailed safety precautions.
1.1. Precautionary safety measures
Preliminary
• 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 the meter and probes are in good condition.
During use
• 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.
• BEFORE EACH MEASUREMENT make sure the main function dial is at the
correct position. If the value scale is unknown, ALWAYS set the range dial at
the highest possible setting.
• To avoid damaging the instrument, DO NOT exceed the maximum input limits.
• CAUTION when working with voltages above 60V DC or 30V AC RMS. Such
voltages pose a shock hazard.
• NEVER exceed the protection limit values indicated in the specifications for
each range of measurement.
• DO NOT touch unused terminals when meter is linked to a circuit.
• Keep fingers behind the probe barriers while measuring.
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3 in 1 Digital Multimeter and Network Maintenance Tester
• Before changing functions, disconnect the test leads from the circuit under
test.
• Before attempting to insert transistors for testing, always be sure that test
leads have been disconnected from any measurement circuits.
• Before measuring current, turn power ‘off’ to the circuit before connecting the
meter to the circuit.
• To avoid the wrong reading or even electric shocks, when the symbol
appears you must change the battery.
• When carrying out measurements on TV or switching power circuits, always
remember that there may be high amplitude voltage pulses at the test points
which may damage the meter.
• NEVER perform resistance measurements on live circuits.
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.
Earth.
This instrument has double insulation.
Fuse: F 500mA/250V.
1.3 Maintenance
• Before opening up the multimeter, always turn OFF the device, 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 only be carried out by a qualified person.
• 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.
• For continuous protection against fire, replace fuse only with the specified
voltage and current rating: F500mA/250V.
• NEVER use the meter unless the back cover and battery cover are in place and
fastened fully.
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2. DESCRIPTION
2.1 Functions
The 3 in 1 digital multi-tester has been designed to combine the functions of
Digital Multimeter, Telephone Line Tester and Network Cable Tester.
• DC voltage measurement, 5 ranges from 200mV to 1000V
• AC voltage measurement, 5 ranges from 200mV to 700V
• DC/AC current measurement, 5 ranges from 200ΩA to 10A
• Resistance measurement, 7 ranges from 200Ωto 200MΩ
• Diode test
• Audible continuity test
• Battery test: 1.5/6/9V
• Telephone Line test (RJ11)
• Network Cable test (RJ45)
2.2 Names of components
HOLD button - fixes the display data (only for multimeter)
AC/DC button - DC (switch up) [default] / AC (switch down)
LIGHT button - Back light key
TEST button - Cable tester/Resent
Rotary Dial - This dial is used to select functions and desired ranges.
LCD Display - W53 x H32mm (21/4” x 11/4”) LCD screen.
2.3 Terminals (footer of multimeter)
10A - Terminal receiving RED lead for 10A measurement.
mA - Terminal receiving RED lead for mA measurement.
COM - Terminal receiving the BLACK lead as a common reference.
VΩΩ- Terminal receiving the RED lead for voltage, resistance, capacitance, diode
and continuity measurements and frequency.
11..RJ11 test jack
22..RJ45 test jack
33..RJ45 jack (Remote)
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3. OPERATING INSTRUCTION
Measuring Voltage
11..Connect the Black test lead to the CCOOMMjack and the Red test lead to the VVΩΩjack.
22..Set the rotary dial to your desired 'VV' range position and connect the test leads
to the source or load being measured.
33..If you push down the 'AACC//DDCC' button when testing is active the measurement
will be converted from DC to AC range.
44..If you need to hold the reading, press the 'HHOOLLDD' button and if you press it
again the held data will be released.
55..When only the figure '1' is displayed, it indicates an overrange situation and
a higher range needs to be selected.
Measuring Current
11..Connect the Black test lead to the CCOOMMjack and the Red test lead to the mmAA
jack for a maximum of 200mA. For a maximum of 10A, move the Red lead to
the 1100AAjack.
22..Set the rotary dial to your desired 'AA' range position and connect test leads to
the load under measurement.
33..If you push down the 'AACC//DDCC' button when testing is active the measurement
will be converted from DC to AC range.
44..If you need to hold the reading, press the 'HHOOLLDD' button and if you press it
again the held data will be released.
55..When only the figure '1' is displayed, it indicates an overrange situation and
a higher range needs to be selected.
Testing Diode/Continuity
11..Connect the Black test lead to the CCOOMMjack and the Red test lead to the VVΩΩ
jack. (NOTE: The polarity of red lead connection is positive '+').
22..Set the rotary dial to your position and connect the Red lead to the anode,
the Black lead to the cathode of the diode under testing. The meter will show
the approx. voltage drop of the diode. If the lead connection is reversed, figure
'1' will be displayed. If this continues (i.e. resistance is less than about 70Ω),
a buzzer will sound.
Measuring Resistance
11..Connect the Black test lead to the CCOOMMjack and the Red test lead to the VVΩΩ
jack. (NOTE: The polarity of red lead connection is positive '+').
22..Set the rotary dial to your desired ΩΩrange position and connect test leads
across the resistance under measurement.
33..Read LCD display.
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3 in 1 Digital Multimeter and Network Maintenance Tester
NNOOTTEE::
• If the resistance is above 1MΩΩ, the meter may take a few seconds to stabilise
the reading.
• When the input is not connected, i.e. at open circuit, the figure '1' will be
displayed for the overrange condition.
• When checking the circuit resistance, be sure the circuit under test has all
power removed and all capacitors are fully discharged.
• At 200MΩΩrange display is 10 counts when test leads are shorted. These
counts have to be subtracted from measuring results. For example, when
measuring 100MΩΩresistance, the reading will be 101.0 and the correct
measuring result should be:
101.0 - 1.0 = 100.0 MΩΩ.
Testing Batteries
• Connect the Black test lead to the COM jack and the Red test lead to the VΩΩjack.
• Set the rotary dial at your desired 'BAT' range position and connect test leads
across the battery.
Testing Telephone Line (RJ11)
11..Connect the RRJJ1111test jack to one end of the telephone line to be tested.
22..Connect the UUAAXX(Telephone Unit Automatic Exchange) to the other end of the line.
33..Push the 'TTEESSTT' button to start testing.
Testing Network Cable (RJ45)
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• The network cable tester is suitable for T168A, T568B, 10Base-T and Token
Ring and will check a fault condition before detecting other fault conditions.
• The detection and indication of the presence of a fault is handled on a
"one-per-test" basis. Once a fault is corrected, it is recommended the cable be
tested again for other faults.
•OOPPEENN- If there is no 'OOPPEENN' indication. A typical cable may have 2, 3, or 4
pairs. 'OPENS' are displayed as an unlit symbol. The user will determine if a
pair is present and continuous or 'OPEN' will by comparing the illuminated
symbol to the expected number of pairs that should be good.
POSITION 1.5V 6V 9V
LOAD 27Ω68Ω100Ω
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•SHO. - A short circuit condition exists ((FFiigg..11)).
Fig 1 - SHORT
•MIS. - Indicates the improper assignment of individual wire pairs to pins for
the wiring schemes tested ((FFiigg..22)).
Fig 2 - MISWIRE
•REV. - Reverse wiring means the pin for one wire in a pair is connected to the
opposite pin for the pair in the remote jack ((FFiigg..33)).
Fig 3 - REVERSED
•SPL. - Split pairs occur when the tip ('+' conductor) and ring ('-' conductor) of 2
twisted pairs are interchanged ((FFiigg..44)).
Fig 4 - SPLIT PAIRS
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3 in 1 Digital Multimeter and Network Maintenance Tester
•PASS - No problems found, a passed circuit ((FFiigg..55)).
Fig 5 - RIGHT (PASS)
• Connect the RJ45 test jack to one end of the cable to be tested.
• Connect the remote unit to the other end of the cable.
• Push the 'TEST' button to perform test.
EExxaammpplleess::
11..The cable fault is a Short on Pair 11--22and PPaaiirr33--66,,the LCD status will be as
follows: PPaaiirr11--22,,PPaaiirr33--66,,PPaaiirr44--55,,PPaaiirr77--88,,SSHHIIEEand SSHHOOwill display at the
same time.
22..Push the 'TTEESSTT' button again, PPaaiirr11--22,,PPaaiirr33--66and SSHHOOwill display.
33..Continue to Push the 'TTEESSTT' button, the next pairs will display.
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4. SPECIFICATIONS
• Accuracy is specified for a period of 1 year after calibration and at 18°C to
28°C (64°F to 82°F) with relative humidity to 80%.
General
Voltages
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• Input Impedance: 10MΩ.
• Frequency Range: 40Hz to 400Hz (for AC).
• Response: Average, calibrated in rms of sine wave.
Current
DC Current
MAXIMUM VOLTAGE 1000V DC or 700V AC
FUSE PROTECTION mA: F 200mA/250V 10A: no
POWER SUPPLY 9V battery, NEDA 1604 or 6F22
OPERATING TEMPERATURE 0°C to 40°C (32°F to 104°F)
STORAGE TEMPERATURE -10°C to 50°C (14°F to 122°F)
RANGE RESOLUTION ACCURACY
200mV 0.1V ±(1.2% rdg ±3 digits)
2V 1mV
20V 10mV ±(0.8% rdg ±3 digits)
200V 100mV
700V 1V ±(1.2% rdg ±5 digits)
RANGE RESOLUTION ACCURACY
200µA 0.1µA
2mA 1µA ±(0.8% rdg ±3 digits)
20mA 10µA
200mA 100µA ±(1.5% rdg ±2 digits)
10A 10mA ±(2.0% rdg ±5 digits)
RANGE RESOLUTION ACCURACY
200mV 0.1V
2V 1mV
20V 10mV ±(0.8% rdg ±2 digits)
200V 100mV
1000V 1V ±(1.2% of rdg ±3 digits)
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3 in 1 Digital Multimeter and Network Maintenance Tester
AC Current
• Overload protection: F 200mA/250V fuse for 200µA to 200mA ranges.
• Frequency range: 40Hz to 400Hz (for AC).
• Response: Average, calibrated in rms of sine wave.
Resistance
• Maximum open circuit voltage: 700mV (3V for 200MΩrange).
• Note: On 200MΩrange, if short input, display will read 1MΩ, this 1MΩshould
be subtracted from measurement results.
• Overload Protection: 250V DC or 250V AC rms.
Diode/Continuity
• Overload Protection: 250V DC or 250V AC rms.
RANGE RESOLUTION ACCURACY
200µA 0.1µA ±(2.0% rdg ±3 digits)
2mA 1µA±(1.0% rdg ±3 digits)
20mA 10µA
200mA 100µA ±(1.8% rdg ±3 digits)
10A 10mA ±(3.0% rdg ±5 digits)
RANGE DESCRIPTION
Diode Shows the approximate forward voltage drop
Continuity Built-in buzzer will sound, if the resistance under
test is less than about 70Ω.
RANGE RESOLUTION ACCURACY
200Ω0.1Ω±(0.8% rdg ±3 digits)
2KΩ1Ω
20KΩ10Ω±(0.8% rdg ±2 digits)
200KΩ100Ω
2MΩ1KΩ
20MΩ 10ΚΩ ±(1.0% rdg ±2 digits)
200MΩ 100ΚΩ ±(5.0% rdg -10 digits)
±10 digits)
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5. MAINTENANCE
5.1 General Maintenance and Cleaning
To avoid electrical shock or damage to the multimeter, do not get
water inside the case. Remove the test leads and any input signals
before opening the case.
Cleaning the multimeter:
• Wipe the case with a soft damp cloth (not wet) and mild detergent.
• DO NOT use abrasives or solvents.
• Dirt or moisture in the terminals can affect readings.
Cleaning the terminals:
11..Turn the meter off and remove all test leads.
22. Shake out any dirt that may have gathered in the terminals.
33..Soak a clean swab or cotton bud with a cleaning and oiling agent (such as WD-40).
44..Work the swab/bud around in each terminal until you are happy there
are clean. The oiling agent insulates the terminals from moisture-related
contamination.
Before replacing the battery and fuses, disconnect test leads from
any circuit under test, turn the multimeter 'OFF' and remove test
leads from the input terminals.
To prevent damage to the meter or personal injury, always replace
the battery or fuse with specified rating.
5.2 Battery replacement
When the battery voltage drops below a usable operation range the symbol
will appear on the LCD display, this indicates that the battery will need replacing.
To do this follow these steps.
11..Set the meter to 'OFF' state.
22..Disconnect test leads from any inputs terminals.
33..Use the appropriate screwdriver to unscrew the secured back cover. This will
expose the batteries.
44..Replace the battery with a new 9V battery (6LR61).
55..Replace the battery cover and screw securely back into place.
66..The multimeter should now be fully functional.
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5.3 Fuse replacement
11..Set the meter to 'OFF' state.
22..Disconnect test leads from any inputs terminals.
33..Use the appropriate screwdriver to unscrew the secured back cover and then
the battery cover.
44..Replace the fuse only with an F 200mA/250V fuse.
55..Replace the 2 back covers and screw securely back into place.
66..The multimeter should now be fully functional.
6.
PACK CONTENTS
• Network digital multimeter
• Test probes
• TJ45 jack (remote)
• 9V battery (installed)
• Instruction manual
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Notes
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Edison Products are continuously being developed and improved.
All details and illustrations are for guidance and may be subject to change.
EDISON
The Power Factory, PO Box 14, Wigston, Leicester, England.
ISO 9001 Registered Company
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