Tenma 72-2600 Manual de usuario

Model: 72-2600

Digital Multimeter

Please read these instructions carefully before use and retain for future

reference.

This instrument is designed and manufactured in compliance with: G84793,

lEC61010-1, CAT III 600V Pollution Degree 2 and Double Insulation standards.

• Check the test leads, probes and case insulation before using. If you nd any

breakage or abnormality, or you consider the device is broken, stop using the

device immediately.

• When using the test probes, keep your ngers behind the nger protection ring.

• Do not use the meter with the back cover open.

• Select appropriate test range for measurements.

• Ensure all inputs are less than the range selected otherwise it may cause electrical

shock or meter damage.

• Do not change the range selector position during voltage or current

measurements.

• Do not apply a voltage over 600V between COM terminal and ground.

• Take caution when working voltages are above 60V DC or 30V AC rms.

• Do not connect the meter to voltage signals when the range selector is on current,

resistance, diode or continuity range.

• When measuring current, each single measurement should be shorter than 10

seconds. For current values over 5A, the wait period between each measurement

must be longer than 15 minutes.

• When a measurement has been completed, disconnect the testing probes from

the circuit under test.

• Replace the batteries as soon as the low battery indicator appears on the display.

• Remove dead batteries from the meter or if it is not going to be used for a long

time.

• Never mix old and new batteries together, or different types of batteries.

• Never dispose of batteries in a re, or attempt to recharge ordinary batteries.

• Before replacing the battery, turn off the meter and disconnect all the test probes.

• To prolong battery life turn off the meter after use.

• CAT III: Measurement category III is for measurements performed in the building

installation. Examples are measurements on distribution boards, circuit-breakers,

and wiring, such as cables, bus-bars, junction boxes, switches and socket-outlets

in the xed installation, and equipment for industrial application and some other

equipment such as stationary motors with permanent connection to the xed

installation.

• Only use test leads and probes that are in compliance with IEC 61010-031, and

rated CAT III 600V.

SYMBOL GUIDE

Low battery Grounding Diode

Continuity Buzzer AC DC

IMPORTANT SAFETY INFORMATION

WHAT’S INCLUDED

• Digital multimeter

• User manual

• Set of test leads

• 9V battery (installed)

FUNCTIONS

1. LCD Display

2. Power button

3. HOLD button

4. Range selector

5. Input terminals

DC VOLTAGE

Range Resolution Accuracy Input

Impedance

Overload

protection

200mV 10µV ±(0.05%+3)

Around

10MΩ

600VAC/DC

RMS

850V p-p

2V 100µV ±(0.1%+3)

20V 1mV

±(0.15%+5)200V 10mV

600V 10mV

AC VOLTAGE

Range Resolution Accuracy Input

Impedance

Overload

protection

200mV 10µV ±(0.8%+10)

Around

10MΩ

600VAC/DC

RMS

850V p-p

2V 100µV ±(0.5%+10)

20V 1mV ±(0.6%+10)

200V 10mV

600V 100mV ±(0.8%+15)

• Displays effective value of sine wave.

• AC voltage frequency range 40Hz-400Hz

DC CURRENT

AC CURRENT

Range Resoluon Accuracy Overload Protecon

2mA 0.1μA ±(0.5%+5) Fuse 500mA 600V

6 dia x 32mm

20mA 1μA

200mA 10μA ±(0.8%+5)

10A 1mA ±(2%+10) Fuse 10A 600V

6 dia x 32mm

Range Resoluon Accuracy Overload Protecon

2mA 0.1μA ±(0.8%+10) Fuse 500mA 600V

6 dia x 32mm

20mA 1μA

200mA 10μA ±(1.2%+10)

10A 1mA ±(2.5%+10) Fuse 10A 600V

6 dia x 32mm

• When <5A continuous measurement is allowed/

• When >5A use 10 seconds measurement at an interval of more than 15 minutes.

• Measured voltage drop 200mV for full range.

• When <5A continuous measurement is allowed/

• When >5A use 10 seconds measurement at an interval of more than 15 minutes.

• Measured voltage drop 200mV for full range.

• AC current frequency range 40hz - 400hz

• Display true RMS value (waveform coefcient is not more than 5).

RESISTANCE

Range Resoluon Accuracy Overload Protecon

200Ω0.01Ω±(0.5%+10)

600V AC/DC

RMS

2kΩ0.1Ω±(0.3%+3)

20kΩ1Ω

±(0.3%+1)200kΩ10Ω

2MΩ100Ω

20MΩ1kΩ±(0.5%+1)

• Open circuit voltage about 3V (for 200Ω range).

• Short circuit the test leads when using 200Ω range to measure and subtract this

gure from the subsequent measured values to obtain an accurate reading.

• Input sensitivity ≤200mVrms

• The maximum input amplitude ≤30Vrms

• Overload protection 600Vrms.

FREQUENCY

Range Accuracy Max Resoluon

20kHz ± (1.5%+5) 1Hz

CAPACITANCE

Range Resoluon Accuracy Overload Protecon

20nF 1pF

±(4.0%+20) Fuse 500mA/600V

6 dia x 32mm

200nF 10pF

2µF 100pF

20µF 1nF

• Testing signal is about 400Hz 40mVrms.

DIODE AND CONTINUITY

Range Resoluon Notes Overload Protecon

Display approximate

value of forward

voltage drop for

diode

Posive DC current

is about 1mA and

reverse DC voltage is

approx 2.8V

600V AC/DC

If resistance

≤30Ω the buzzer

sounds. Display

is approximate kΩ

value

Open circuit voltage

approx 3.0V

OPERATION

Rotary Switch

Below table indicates the rotary selector switch position functions.

DC Voltage measurement

AC Voltage measurement

AC Current measurement

DC Current measurement

FCapacitance measurement

Hz Frequency measurement

Diode Test

Continuity sounder

Resistance measurement

Hold Button

Press to enter or exit data hold mode.

• The Hold mode is applicable to all measurement functions.

• Press HOLD to enter Hold mode.

• Press HOLD again to exit Hold mode.

Note: To avoid possibility of electric shock, do not use Hold mode to determine if

circuits are without power. The Hold mode will not capture unstable or noisy readings.

Measuring DC Voltage

• Insert the red test lead into the V terminal and the black test lead into COM.

• Set the rotary selector to .

• Connect the test leads across the object to be measured in parallel and the value

will be displayed.

Notes:

• If the voltage to be measured is unknown, choose the maximum measuring range

and reduce it step by step until a satisfactory reading is obtained.

• Do not attempt to measure higher than 600V or the meter may be damaged and

there may be a risk of electric shock.

• Disconnect from the circuit under test when changing the range.

• If the display only shows “1”, it indicates the measured voltage is out of range. In

this case, turn the range selector to a higher range.

Measuring AC Voltage

• Insert the red test lead into the V terminal and the black test lead into COM.

• Set the rotary selector to .

• Connect the test leads across the object to be measured in parallel and the value

will be displayed.

Notes:

• If the voltage to be measured is unknown, choose the maximum measuring range

and reduce it step by step until a satisfactory reading is obtained.

• Do not attempt to measure higher than 600V or the meter may be damaged and

there may be a risk of electric shock.

• Disconnect from the circuit under test when changing the range.

• If the display only shows “1”, it indicates the measured voltage is out of range. In

this case, turn the range selector to a higher range.

Measuring DC Current

• Insert the red test lead into the mA terminal and the black test lead into COM.

• If the current is between 200mA and 10A insert the red test lead into the 10A

terminal.

• Set the rotary selector to A.

• Connect the test leads across the object to be measured in series and the value

will be displayed.

Measuring AC Current

• Insert the red test lead into the mA terminal and the black test lead into COM.

• If the current is between 200mA and 10A insert the red test lead into the 10A

terminal.

• Set the rotary selector to A.

• Connect the test leads across the object to be measured in series and the value

will be displayed.

Notes

• When current measurement has been completed, disconnect the connection

between the testing leads and the circuit under test, and remove the testing leads

away from the input terminals of the Meter.

Measuring Resistance

• Insert the red test lead into the Ω terminal and the black test lead into the COM

terminal.

• Set the rotary switch to Ω resistance measurement mode.

• Connect the test leads across with the object being measured. The measured

value shows on the display.

• For high resistance measurement >1MΩ, it is normal for it to take several seconds

to obtain a stable reading.

Warning

To avoid damages to the Meter or to the devices under test, disconnect circuit power

and discharge all the high-voltage capacitors before measuring resistance.

To avoid harm to yourself, do not input higher than DC 60V or AC 30V voltages.

Notes

The display will show “1” if the tested resistance is greater than the maximum range of

the meter.

• When resistance measurement has been completed, disconnect the connection

between the testing leads and the circuit under test, and remove the testing leads

away from the input terminals of the Meter.

Capacitance measurement

• Set the rotary switch to F to select capacitance measurement.

• Insert the tested capacitor directly into the capacitance jacks or use test leads.

• Inserting the capacitor directly is more stable and suitable for small value of

capacitance testing.

• “1” is displayed if the tested capacitor is shorted or exceeds the maximum range.

• For high capacitance measurement, it is normal for it to take several seconds to

obtain a stable reading.

• When capacitance testing has been completed, disconnect the connection

between the testing leads and the item under test, and remove the testing leads

away from the input terminals of the Meter.

Warning

To avoid damages to the Meter discharge all the high-voltage capacitors before

measuring.

Testing Diodes and Continuity

• Insert the red test lead into the terminal and the black test lead into the COM

terminal.

• Set the rotary switch to to select diode and/or continuity test mode.

• For forward voltage drop readings on any semiconductor component place the red

test lead on the anode and the black test lead onto the cathode.

• The measured value shows on the display, or if measuring continuity and the

resistance is below 30Ω the internal buzzer will sound.

• When testing has been completed, disconnect the connection between the testing

leads and the item under test, and remove the test leads from the input terminals

of the Meter.

Note: A good diode should produce a forward voltage drop of 0.5V to 0.8V.

SPECIFICATIONS

Function Range/description

Operating Temperature 0o~40oC (32oF~104oF)

Storage Temperature -10oC~50oC (14oF~122oF)

Battery Type 9V NEDA 1604 or 6F22 or 006P

Polarity Auto

AC/DC Voltage 0 to 600V

AC/DC Current 0 to 10A (5~10A for ≤10 seconds, interval ≥15 minutes)

Dimensions (H x W x L) 186 x 91 x 39mm

Weight 300g incl battery

BATTERY REPLACEMENT

Warning: Only replace the battery after the test leads

are removed and the power is turned off.

To replace the battery,

• Remove the screw from the battery cover and

separate the battery cover from the case bottom.

• Remove the battery from the battery compartment.

• Replace the battery with a new 9V battery

(NEDA1604, 6F22 or 006P)

• Ret the battery cover to the case bottom, and

reinstall the screw.

• Clean the meter with a clean, soft cloth.

• Do not use any chemicals, abrasives or solvents that could damage the meter.

CLEANING

Frequency measurement

• Insert the red test lead into the Hz terminal and the black test lead into the COM

terminal.

• Set the rotary switch to 20kHz frequency measurement

• Connect the test leads across the object being measured and the value shows on

the display.

• When frequency measurement has been completed, disconnect the connection

between the testing leads and the circuit under test, and remove the testing leads

away from the input terminals of the Meter.

INFORMATION ON WASTE DISPOSAL FOR CONSUMERS OF

ELECTRICAL & ELECTRONIC EQUIPMENT

These symbols indicate that separate collection of Waste Electrical and Electronic Equipment

(WEEE) or waste batteries is required. Do not dispose of these items with general household

waste. Separate for the treatment, recovery and recycling of the materials used. Waste batteries

can be returned to any waste battery recycling point which are provided by most battery retailers.

Contact your local authority for details of the battery and WEEE recycling schemes available in

your area. Made in China. PR2 9PP

Man Rev 1.0

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