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Tenma 72-8150 Скачать руководство пользователя страница 9

9

The Meter Structure

(see figure 1)

Functional Buttons

1. LCD Display
2. Capacitance Zero Adjustment Switch
3. Transistor Jack
4. Resistance, Diode and Continuity Buzzer Input Terminal
5. Capacitance Input Terminal
6. Small Value Capacitance Jack
7. Rotary Switch .
8. Power Button

(figure 1)

Below table indicated for information about the functional
button operations.

Button

Description

Press the

Power

down to turn the Meter on. Press

the

Power

again to turn the Meter power off.

Power

1

2

3

6

7

8

5

4

Model 72-8150: OPERATING MANUAL

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Содержание 72-8150

Страница 1: ...eration A Measuring Resistance B Capacitance Measurement C Diode and Continuity Test D Transistor hFE Measurement General Specifications Accuracy Specifications A Resistance Test B Capacitance Test C Continuity Diodes D Transistor Maintenance A General Service B Replacing the Battery C Replacing the Fuse 3 4 5 6 8 9 9 10 11 11 13 15 17 18 19 19 20 20 21 22 22 23 24 Model 72 8150 OPERATING MANUAL ...

Страница 2: ...2 Model 72 8150 OPERATING MANUAL ...

Страница 3: ...es strictly Digital Capacitance Meter Model 72 8150 hereafter referred to as the Meter is a 3 1 2 digits with steady operations fashionable design and highly reliable hand held measuring instrument It will measure resistance transistor hFE and test diodes It will also test continuity with an audible buzzer The Meter has a broad capacitance measurement range and precise accuracy It can be used in m...

Страница 4: ...y to see if any items are missing or damaged Item Description Qty 1 2 3 English Operating Manual Test Clip 9V Battery NEDA1604 6F22 or 006P installed 1 piece 1 pair 1 piece In the event you find any items missing or damaged please contact your dealer immediately Model 72 8150 OPERATING MANUAL ...

Страница 5: ... Meter may be impaired In this manual a Warning identifies conditions and actions that pose hazards to the user and may damage the Meter or the equipment under test A Note identifies the information that user should pay attention on International electrical symbols used on the Meter and in this Operating Manual are explained on page 8 5 Model 72 8150 OPERATING MANUAL ...

Страница 6: ...hould be placed in the correct position and no change of range made during measurement to prevent damage to the Meter Use the proper terminals function and range for your measurements Do not use or store the Meter in an environment of high temperature humidity explosive inflammable and strong magnetic field The performance of the Meter may deteriorate after dampened Disconnect circuit power and di...

Страница 7: ...face of the Meter when servicing No abrasive and solvent should be used to prevent the surface of the Meter from corrosion damage and accident The Meter is suitable for indoor use Turn the Meter power off when it is not in use and take out the battery when not using for a long time Periodically check the battery as it may leak after some time If leakage is apparent the battery should be immediatel...

Страница 8: ...onal Electrical Symbols Ground Double Insulated Low Battery Continuity Test Diode Capacitance Test Fuse Warning Refer to the Operating Manual Conforms to Standards of European Union Model 72 8150 OPERATING MANUAL ...

Страница 9: ...zzer Input Terminal 5 Capacitance Input Terminal 6 Small Value Capacitance Jack 7 Rotary Switch 8 Power Button figure 1 Below table indicated for information about the functional button operations Button Description Press the Power down to turn the Meter on Press the Power again to turn the Meter power off Power 1 2 3 6 7 8 5 4 Model 72 8150 OPERATING MANUAL ...

Страница 10: ...zer is on Farad The unit of capacitance pF Picofarad 1x10 12 or 0 000000000001 farads nF Nanofarad 1x10 9 or 0 000000001 farads µF Microfarad 1x10 6 or 0 000001 farads mF Millifarad 1x10 3 or 0 001 farads Ohm The unit of resistance k kilohm 1x103 or 1000 ohms M Megaohm 1x106 or 1 000 000 ohms H Henry The unit of Inductance mH Millihenry 1x10 3 or 0 001 henry No Symbol Meaning 1 2 3 4 5 6 7 8 pF nF...

Страница 11: ...the high voltage capacitors before measuring resistance Warning The resistance ranges are 20 200 2k 20k 200k 2M 20M 200M and 2000M To measure resistance please connect the Meter as follows Insert the red test clip into the terminal and the black test clip into COM terminal Set the rotary switch to range Connect the test clips across with the object being measured The measured value shows on the di...

Страница 12: ...lips Then use the equation measured resistance value Y X precision readings of resistance The Meter displays 1 when there is no input for example open circuit situation For high resistance measurement 1MΩ it normally requires several seconds to obtain a stable reading When resistance measurement has been completed disconnect the connection between the test clips and the circuit under test and remo...

Страница 13: ...rement position 200pF and increase the range step by step until a satisfactory reading is obtained and the overload icon 1 is not showing Insert the red test clip into the CAP terminal and black test clip into the CAP terminal For small value capacitor measurement insert the capacitor into the Small Value Capacitance Jack When testing polarized capacitors use the red test clip on the capacitor s p...

Страница 14: ...acitance 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 l l l 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 The measured val...

Страница 15: ...ross the junction A good silicon junction drops between 0 5V and 0 8V To test a diode out of a circuit connect the Meter as follows Insert the red test clip into the terminal and the black test clip into the COM terminal Set the rotary switch to For forward voltage drop readings on any semiconductor component place the red test clip on the component s anode and place the black test clip on the com...

Страница 16: ... and the circuit under test and remove them from the input terminals of the Meter l l l To test for continuity connect the Meter as below Insert the red test clip into the terminal and the black test clip into the COM terminal Set the rotary switch to Connect the test clips across with the object being measured The beeper sounds continuously when the test resistance 120 The Meter displays the valu...

Страница 17: ...ansistor Jack The Meter displays the tested transistor s nearest value When transistor measurement has been completed disconnect the connection between the test clips and the circuit under test and remove them from the input terminals of the Meter l 17 D Transistor hFE Measurement see figure 6 figure 6 1 2 3 Note NPN PNP hFE Model 72 8150 OPERATING MANUAL ...

Страница 18: ...20pF Temperature Operating 0 o C 40 o C 32 o F 104 o F Storage 10 o C 50 o C 14 o F 122 o F Relative Humidity 75 0 o C 30 o C 50 31 o C 40 o C Altitude Operating 2000 m Storage 10000 m Battery Type One piece of 9V NEDA1604 or 6F22 or 006P Low Battery Display Dimensions 6 77 H x 3 27 W x 1 50 D Weight Approximate 310g battery included Safety Compliances EMC EN61326 Certification UL CUL pending l l ...

Страница 19: ...cuit the input terminals beforehand and record the reading obtained called this reading as X X is the additional resistance from the test lead Then use the equation measured resistance value Y X precision readings of resistance l 19 Accuracy Specifications A Resistance Test Range Resolution Accuracy Overload Protection 20Ω 200Ω 2kΩ 20kΩ 200kΩ 2MΩ 20MΩ 200MΩ 2000MΩ 0 01Ω 0 1Ω 0 001kΩ 0 01kΩ 0 1kΩ 0...

Страница 20: ...Open Circuit Voltage around 2 8V Continuity Around 120 beeper sounds continuously l l 20 B Capacitance Test Range Resolution Accuracy Testing Frequency 200 0pF 2 000nF 20 00nF 200 0nF 2 000µF 20 00µF 200 0µF 2 000mF 20 00mF 0 1pF 0 001nF 0 01nF 0 1nF 0 001µF 0 01µF 0 1µF 0 001mF 0 01mF 0 5 10 2 2 800Hz 80Hz 8Hz Remarks C Continuity Diodes Range Resolution Overload Protection Function Diode Continu...

Страница 21: ...splay value is the tested transistor s nearest value 0 1000β l 21 D Transistor Range Resolution Overload Protection hFE Vce 2 8V I bo 10µA 250V rms Remarks Testing Condition 1β Model 72 8150 OPERATING MANUAL ...

Страница 22: ... not allow water inside the case Warning Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives or solvents To clean the terminals with cotton bar with detergent as dirt or moisture in the terminals can affect readings Turn the Meter power off when it is not in use and take out the battery when not using for a long time Do not store the Meter in a place of humidity hi...

Страница 23: ...the terminals Remove the screw from the battery compartment and separate the battery compartment from the case bottom Remove the battery from the battery compartment Replace the battery with a new 9V battery NEDA1604 6F22 or 006P Replace the case bottom and battery compartment and reinstall the screw 1 2 3 4 5 23 B Replacing the Battery see figure 7 figure 7 To replace the battery Model 72 8150 OP...

Страница 24: ...e screws from the case bottom and separate the case top from the case bottom Remove the fuse by gently prying one end loose then take out the fuse from its bracket Install ONLY replacement fuses with the identical type and specification as follows and make sure the fuse is fixed firmly in the bracket Fuse 1 0 315A 250V fast type fuse 5x20 mm Replace the battery compartment and the case top and rei...

Страница 25: ... END Fuse replacement is seldom required Blown fuses are typically a result of improper use This operating manual is subject to change without notice 25 Model 72 8150 OPERATING MANUAL ...

Страница 26: ...Copyright 2006 Tenma Test Equipment All rights reserved Tenma Test Equipment 405 S Pioneer Blvd Springboro Ohio 45066 www tenma com 26 Model 72 8150 OPERATING MANUAL ...

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