background image

 

- 11 -

record. 

 

The meter is in auto range mode and will automatically select a most suitable range. To select a range 

manually for the measurement, press RANGE button to select a proper range. There are six ranges to choose 

from: 800.00Ω/8.0000kΩ/80.000kΩ/800.00kΩ/8.0000MΩ/80.000MΩ 

 

Connect the black test lead to “COM” terminal and the read test lead to “VΩ Hz” terminal. 

 

Touch the probes to the test points and read the display. 

 

Measurement mode 

Primary display  Secondary display 

Ω 

Ω/kΩ/MΩ 

MAX/MIN, REL

 parameters 

 

Continuity mode 

 

Press SELECT button to select “

” range. 

 

If the testing 

point’s

 resistance falls below 50Ω, 

the beeper will sound

Hi resistance 

 

This function is used to measure the resistance above 80MΩ. 

 

Press SELECT button to select “HiΩ” range. The primary display will display “Hi”. 

 

A single range is 8000.0MΩ. If the testing points resistance falls below 10MΩ and above 8000.0MΩ, “OL” 

will appear on the display. 

 

4.7 Capacitance Measurement (CAP) 

WANRNING: To avoid damage to the meter or the testing equipments disconnect circuit power and 

discharge all high voltage capacitors before measuring 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,  next  press  REL

  button.  The  primary  display  will  be  null  and  the 

secondary display displays the resistance of test lead. Measure the to-be tested resistance and the result will 

be displayed on the primary display. 

 

Capacitor is capable of storing electric charge. When testing capacitance, only the value on a stable display is the 

correct result. 

 

Set the function to “

” position. 

 

According  to  practical  demands,  press  REL

,  MAX/MIN  and  2nd  VIEW  buttons  to  have  relative 

measuring or record. 

 

The meter is in auto range mode and will automatically 

select a most suitable range. To select a range manually for 

the measurement, press RANGE button to select a proper 

range. There are six ranges to choose from: 

1.0000nF/10.000nF/100.00nF/1.0000μF/10.000μF/100.00μF 

 

Connect  the  black  test  lead  to  “COM”  terminal  and  the  red 

test lead to “VΩ Hz” terminal. 

 

Touch the probes to the test points and read the display. 

 

Содержание MT8145

Страница 1: ...Benchtop Instrument 80000 Counts 4 7 8 Bench Digital Multimeter Operation Manual...

Страница 2: ...s 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 in...

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

Страница 4: ...s TIMER 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 B...

Страница 5: ...ppears on the LCD display The relative measuring function measures the difference between the testing value and the reference value The current readings on the secondary display are used as a relative...

Страница 6: ...C DC 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...

Страница 7: ...alue 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...

Страница 8: ...lly 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 r...

Страница 9: ...choose from 8 0000V 80 000V 750 00V Connect the black test lead to COM terminal and the read test lead to V Hz terminal Touch the test leads to the test points and read the display on both the primary...

Страница 10: ...mpt 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 Befo...

Страница 11: ...rations 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 WANRNING T...

Страница 12: ...ance 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 bl...

Страница 13: ...nd 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 fou...

Страница 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 Us...

Страница 15: ...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 se...

Страница 16: ...es you an easier view 5 11 Push Button Panel Basically the functions of the buttons on this panel are the same as the buttons on the multimeter Double click on the function buttons is in the same way...

Страница 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 Otherwis...

Страница 18: ...20A 1mA Table 4 ACA True RMS Range Resolution Accuracy Remarks 80mA 1 A 50Hz 5kHz 0 2 rdg 10 Fuse F750Ma 250v F13A 250V Voltage drop 800mV Max input current 20A up to15 seconds 800mA 10 A 8A 0 1mA 50H...

Страница 19: ...nd ground 1000V RMS Continuity beeper Approx 3kHz Display dual display 80000 update 4 times Sec Bar graph 23 segments update 40 times Sec Electromagnetic compatibility For all ranges and functions exc...

Страница 20: ...ter 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 curren...

Страница 21: ...oes 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...

Отзывы: