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80000 Counts

Bench Digital Multimeter

Operation Manual V2.0

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Summary of Contents for TM-8155

Page 1: ...80000 Counts Bench Digital Multimeter Operation Manual V2 0 BENCHTOP INSTRUMENT ...

Page 2: ...uipments read this operation manual carefully before using this meter and follow the following safety guidelines Before use check and make sure that the instrument s plastic chassis the test leads and the insulation layer are intact User the meter only as specified in this manual Otherwise the protection provided by the meter may be expired Never measure voltage while the test leads are inserted i...

Page 3: ... 2 2 PANEL INSTRUCTIONS Fig 2 1 Front panel Fig 2 2 Rear Panel ...

Page 4: ...R key to start the secondary display for counting time Press TIMER key again to turn off the counting time display When the secondary display is display counting time press key SELECT to enter Beeper setup for setting up a timer for beeper Then press key REL MIX MIN RANGE 2nd VIEW to input the time Next press key TIMER to validate the new time data When the counting time exceeds the preset time th...

Page 5: ...ppears on the LCD display The relative measuring functions measures the difference between the testing value and the reference value The current readings on the secondary display are used as a relative value The primary display displays the relative measurement in two modes One is REL measuring value Reference value The other is REL REL Reference value x100 press SELECT button to select REL or REL...

Page 6: ...C AC DC AC voltage or current 10 PH PH Peak Hold Peak Hold 11 A H Auto Hold 12 AVG Average reading 13 Auto Auto mode 14 APO Auto power off sign 15 RS232 Communication on annunciation 16 MAX MIN MAX MIN MAX Rereading MIN Reading MAX MIN Reading 20 mV V mA A Voltage and current units on secondary display 21 Hz kHz MHz Ω kΩ MΩ Frequency and resistance units on secondary display 22 Duty cycle unit and...

Page 7: ...value on the primary display and on the secondary display c If the measuring value is between and upper and lower limit the LCD displays the measuring value on the primary display and on the secondary display 3 3 Set up the Time for Measurement 1 Press TIMER button to set enter the setup of time The secondary display displays 0 00 00 2 Press SELECT button and the last digit of 0 00 00 on the secon...

Page 8: ...y will automatically exit the HOLD or MAX MIN mode 3 Enter or exit mauran range mode Press RANGE button to select manual range mode Then every press on the RANGE button the meter steps to a higher range and will return to the lowest range when the higher range is stepped into Pressing RANGE button for at least two seconds can also return to auto range mode 4 OPERATION INSTRUCTIONS 4 1 DC Voltage M...

Page 9: ...choose from 8 0000V 80 000V 750 00V Connect the black test lead to COM terminal and the read test lead to V Ω Hz terminal Touch the test leads to the test points and read the display on both the primary and secondary display Press SELECT Primary display Secondary display Press 2nd VIEW ACV ACV ACV Hz ACV dBm dBm Hz ACV NOTE 1 In dBm measurement mode the decimal point of dBm is fixed between the se...

Page 10: ...attempt an in circuit current measurement when the fuse is blown or when the voltage between open circuit and the ground is 1000V To avoid damage to the meter check the meter s fuse before proceeding Before current measurement turn of the circuit power supply discharge the high voltage capacitance Under no circumstances do not test the voltage when the test leads are plugged in mA or 20A terminals...

Page 11: ...tions apply the same as explained in section 4 4 Press SELECT Primary display Secondary display Press 2nd VIEW DCA DCA ACA ACA DCA ACA DC AC A ACA ACA Hz ACA Hz 4 6 Resistance Measurement Ω WANRNING To avoid damage to the meter or the testing equipments disconnect circuit power and discharge all high voltage capacitors before measuring resistance Use the DC function to confirm that the capacitor i...

Page 12: ...ng capacitance Use the DC function to confirm that the capacitor is discharged NOTE Some capacitors have polarities In measuring polarities capacitors touch the red test lead to the positive polarity and the black test lead to the negative polarity In measuring low capacitance the resistance of the test leads may cause an error in the test results To avoid this error first short the test leads nex...

Page 13: ... and read the display Measurement mode Primary display Secondary display Press 2nd VIEW Hz Hz kHz MHz High frequency mode Hi Hz In Hi Hz mode the frequency testing range is 8MHz 1000MHz divided into four ranges 8 0000MHz 80 000MHz 800 00MHz 1000 0MHz Use the high frequency accessories to measure frequency above 10MHz The meter is in auto range mode and will automatically select a most suitable ran...

Page 14: ... Read the display 4 10 Diode and Continuity Check WANRNING To avoid damage to the meter or the testing equipments disconnect circuit power and discharge all high voltage capacitors before measuring Use the DC function to confirm that the capacitor is discharged Set the function to position Connect the black test lead to COM terminal and the red test lead to VΩ Hz terminal For diode check touch the...

Page 15: ...t software which allows easy connections to PC for PC control Software operating environment Windos9x NT 2000 XP Software version V1 0 5 1 Installation Plug the CD disk into the CD drive Start up the setup exe file to install the software Select a desired installation path 5 2 RS232 Port Set RS232 port is used for the data transfer between the multimeter and PC There are two ports to be chosen fro...

Page 16: ...on the PC gives you an easier view 5 11 Push Button Panel Basically the buttons on this panel function the same as the buttons on the multimeter Double click on the button functions the same as pressing the multimeter button for 2 seconds 5 12 Analog Display Window The analog display window displays exactly the same as the analog display area of the multimeter LCD display The function and range pa...

Page 17: ...m part of the panel indicate the current status of the data recorder Battery indicates the power supply status of the multimeter If power supply is in good status it will display Battery High Otherwise it will display Battery Low In the right corner of the bottom displays the system time Should you have any questions regarding this software or any suggestions to us please write down and inform us ...

Page 18: ...ge Resolution Accuracy Remarks 80mA 1μA 50Hz 5kHz 0 2 rdg 10 Fuse F750Ma 250v F13A 250V Voltage drop 800mV Max input current 20A up to15 seconds 800mA 10μA 8A 0 1mA 50Hz 500Hz 0 5 rdg 10 20A 1mA Table 5 dBm Function Range Accuracy Resolution dBm 80 00dBm 80 00dBm 1 0 rdg 0 01dBm Table 6 Resistance Ω Range Resolution Accuracy Remarks 800Ω 0 01Ω 0 3 rdg 10 Overload protection 250V RMS 8kΩ 0 1Ω 0 3 r...

Page 19: ...and ground 1000V RMS Continuity beeper Approx 3kHz Display dual display 80000 update 4 time Sec Bar graph 23 segments update 40 time Sec Electromagnetic compatibility For all ranges and functions except capacitance in a RF field of 1V m total accuracy specified accuracy 5 of range In a RF field the capacitance has no specified range or all ranges and functions in a RF field above 1V m there is no ...

Page 20: ...e meter 7 1 Fuse replacement NOTE Please select fuse of the same specification to replace it Power fuse 200mA 250V located in input power socket Fuse for measuring current 800mA 250V located in the current input terminal 13A 250V located the main circuit 1 Test fuse replacement Press the function key to Ω range Connect a test lead to VΩHz terminal use the pen tip to touch the mA or 20A terminal to...

Page 21: ... does not work properly take actions as described in this manual to check out if the meter is defective or not Once defective or malfunctioning is confirmed please contact your local distributor or the manufacturer for repairing 8155 V2 0 ...

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