Tenma 72-2590, 72-2595 User Manual

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Model: 72-2590 and 72-2595

Digital Multimeter

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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 Warning

Continuity Buzzer AC DC

Fuse Double insulated Diode

IMPORTANT SAFETY INFORMATION

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WHAT’S INCLUDED

• Digital multimeter

• User manual

• Set of test leads

• K-type temperature probe (72-2595 only)

FUNCTIONS

1. POWER button

2. LCD Display

3. HOLD button

4. Range selector

5. Input terminals

OPERATING PARAMETERS

• Ambient temperature 23º ± 5º

• Relative Humidity: <75%

DC VOLTAGE

Range Resolution Accuracy

200mV 100μV

±(0.5%+1)

2V 1mV

20V 10mV

200V 100mV

600V 1V ±(0.8%+2)

Note:

Input Impedance: 10MΩ for all ranges

AC VOLTAGE

Range Resolution Accuracy

2V 1mV

±(0.8%+3)20V 10mV

200V 100mV

600V 1V ±(1.5%+5)

Note:

• Input Impedance: 10MΩ for all ranges

• Frequency range: 45Hz-400Hz

• Overload protection: 600Vrms or 850Vpk-pk

• Display: Mean value (RMS value of sine wave)