Tenma 72-8150 Скачать руководство пользователя страница 2

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Please read these instructions carefully before use and retain for future reference.

• 

Please operate according to this manual, otherwise the protection provided by the 

device will be impaired or fail.

• 

Check the test leads, probe and case insulation condition before using. If you find 

any breakage, damage or abnormality, or you consider the device is broken, stop 

using the device immediately.

• 

When using the test probes, keep your fingers behind the finger protection rings. 

• 

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

shock or meter damage.

• 

Do not apply voltage to the meter.

• 

Disconnect circuit power and discharge all high-voltage capacitors before testing 

resistance, continuity, capacitance or diodes.

• 

Do not use the meter with the back cover removed.

• 

Do not adjust the range selector during measurement.

• 

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 fire, 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..

ELECTRICAL SYMBOLS GUIDE

WHAT’S INCLUDED

• 

Digital Multimeter

• 

1 pair of test leads with clips.

• 

9V battery (not installed).

IMPORTANT SAFETY INFORMATION

OVERVIEW

Low battery 

Grounding

Continuity

Double insulated

Diode

Capacitance

Lx

Inductance

Fuse

Warning

Function Buttons

The following table provides information regarding the functional button operation.

Button

Description

Power

Press once to turn the meter on / press again to turn the meter off

L-C 

(72-8155)

Press DOWN to enter capacitance measurement. 

Press UP to enter inductance measurement.

Zero cap 

(72-8150)

Press to adjust small capacitance to zero.

Содержание 72-8150

Страница 1: ...1 Models 72 8150 and 72 8155 Pocket Size Digital Multimeter ...

Страница 2: ...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 fire or attempt to recharge ordinary batteries Before replacing the battery turn off the meter and disconnect all the test probes To pr...

Страница 3: ... 1 x 10 9 or 0 000000001farads Microfarad 1 x 10 6 or 0 000001 farads Millifarad 1 x 10 3 or 0 001 farads 7 k M Measurement of unit of resistance Ohm kiloohm 1 x 103 or 1000 ohms Megaohm 1 x 106 or 1 000 000 ohms 8 H mH Measurement of unit of inductance Henry mH Millihenry 1 x 10 3 or 0 001 henry H 1 LCD display 2 L C switch zero capacitance adjustment switch 3 Transistor jack 4 Resistance diode a...

Страница 4: ...ector to Ω The resistance ranges are 20Ω 200Ω 2kΩ 20kΩ 200kΩ 2MΩ 20MΩ and 2000MΩ Connect the test clips across the object being measured The measured value shows on the display Note When measuring at 20Ω and 200Ω range the test clips can add 0 1 to 0 3Ω error to resistance To obtain precise readings in these low resistance measurement short circuit the input terminals beforehand and record the rea...

Страница 5: ...node and place the black test clip on the component s cathode The display shows the diode forward voltage drop s nearest value When diode test has been completed disconnect the connection between the test clips and the circuit under test and remove the test clips from the input terminals of the meter Transistor testing To test transistors do the following 1 Set the rotary switch to hFE measurement...

Страница 6: ...ection is acceptable When measuring small value capacitor that is 200pF 2nF and 20nF first open circuit the test clips or the Small Value Capacitance Jack then turn the Capacitance Zero Adjustment Switch to adjust zero 72 8150 model The meter displays the measured value When capacitance measurement has been completed disconnect the connection between the test clips and the item under test and remo...

Страница 7: ... value The small value jack on the surface of the meter should be used when measuring small value inductors Note The meter cannot check the quality of the inductance When inductance measurement has been completed disconnect the connection between the test clips and the circuit under test and remove the test clips from the input terminals of the meter BATTERY AND FUSE REPLACEMENT If icon appears on...

Страница 8: ...the case bottom and separate the case top from the case bottom 4 Remove the fuse by gently prying one end loose then take out the fuse from its holder 5 Install ONLY replacement fuses with the identical type and specification as follows and make sure the fuse is fixed firmly in it s holder Fuse 1 0 315A 250V fast type fuse 5x20 mm 6 Replace the battery compartment and the case top and reinstall th...

Страница 9: ...djustment around 20pF Temperature Operating Storage 0o C 40oC 32o F 104o F 10o C 50o C 14o F 122o F Relative Humidity 75 0o C 30o C 50 31 40o C Altitude Operating 2 000 m Storage 10 000 m Battery Type One piece of 9V Alkaline NEDA1604 or 0062 or 6F22 or 006P Low Battery Display Dimensions 6 77 H x 3 27 W x 1 50 D Weight Approximate 310g including battery Safety Compliances EMC EN61326 ...

Страница 10: ...surement minus these 12 digits from the obtained reading When measuring 20Ω and 200Ω range short circuit test clips to display the resistance value of the test lead Subtract this value from the measurement value to obtain the correct tested value ACCURACY Continuity and Diodes Function Range Resolution Overload Protection Diode 1mV 250mV Continuity 1Ω Diode Open Circuit Voltage around 5 8V forward...

Страница 11: ...001nF 1 5 1kHz 150mV 20 00nF 0 01nF 200 0nF 0 1nF 2 000µF 0 001µF 4 5 20 00µF 0 01µF 100Hz 15mV 200 0µF 0 1µF 600µF 0 001mF Reference Only 100Hz 1 5mV Overload Protection 0 315A 250V fast type fuse 5x20 mm Measure of Capacitance 1F 103mF 106μF 109nF 1012pF Discharge all high voltage capacitors before testing capacitance CLEANING Periodically wipe the case with damp cloth and mild detergent Do not ...

Страница 12: ...s 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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