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Center 110, User Manual

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Center 110 User Manual Download Page 13

 

12

4.MAINTENANCE 

 

WARNING!

 

To avoid electric shock, remove the test leads before 
opening the case, and close the case before using the 
meter. 
To prevent fire and possible arc-flash, use fuses with 
ratings shown on the back of the meter. 

 

 

Caution! 

  To avoid contamination or static damage, do not touch
  the circuit board without proper static protection. 

 

 

Summary of Contents for 110

Page 1: ...ions 8 2 2 Operating Instruction 11 2 2 1 Scale Ranging 11 2 2 2 DC Voltage Measurement 11 2 2 3 AC Voltage Measurement 12 2 2 4 AC DC Current Measurement 13 2 2 5 Diode Test 14 2 2 6 Resistance Measurement 15 2 2 7 Continuity Measurement 15 2 2 8 Frequency Measurement 16 3 BATTERY FUSE REPLACEMENT 17 3 1 Battery Check Replacement 17 3 2 FUSE Replacement 17 4 MAINTENANCE 19 ...

Page 2: ...when the function are in uA or mA range Never apply more than rated voltage between any input jack and earth ground Be careful when working with voltages above 60 V dc or 30 V ac rms Such voltages pose a shock hazard Keep your fingers behind the finger guards on the test probes when making measurements To avoid false readings replace the battery immediately When symbol appears Symbols Read Safety ...

Page 3: ...Bargraph indication Over Range Indication LCD will show OL Low Battery Indication The is displayed when the battery voltage drop below the proper operating range Battery type 1 5V SIZE AAA Batter Battery Life 500hrs typical alkaline Battery Polarity Indicates negative input Auto Power Off Time 30 minutes Operating Temperature and Humidity 0 to 40 32 to 104 below80 RH Storage Temperature and Humidi...

Page 4: ...3 2V 600Vrms Continuity beeper Range Active Range Test Voltage Overload protection under40Ω 1 5V 600Vrms DC Voltage Auto Range Range Resolution Accuracy Input Impedance Overload Protection 400mV 0 1mV 0 5 2 200 MΩ 750Vrms 4V 1mV 0 5 2 11MΩ 750Vrms 40V 10mV 0 5 2 10MΩ 750Vrms 400V 100mV 0 5 2 10MΩ 750Vrms 600V 1V 0 8 2 10MΩ 750Vrms AC Voltage Auto Range Accuracy Range Resolution 45Hz 400Hz 400Hz 1K...

Page 5: ...0uA 1uA 1 3 5 1 6 5 1Vrms 0 5A 250 VFast Blow Fuse 40mA 10uA 1 3 5 1 6 5 0 25Vrms 0 5A 250 VFast Blow Fuse 400mA 100uA 1 3 5 1 6 5 1 5Vrms 0 5A 250 VFast Blow Fuse 10A 10mA 1 5 5 1 8 5 0 35Vrms 10A 250V Fast Blow Fuse Ohms Auto Range Range Resolution Accuracy Test Voltage Overload Protection 400Ω 0 1Ω 0 75 2 1 5VDC 600Vrms 4KΩ 1Ω 0 75 2 1 5VDC 600Vrms 40KΩ 10Ω 0 75 2 1 5VDC 600Vrms 400KΩ 100Ω 0 75...

Page 6: ...ive mode The Display is zeroed and the reading is stored as reference value for subsequent measurements Press it again the annunciator blinking and stored relative value will display Press and hold down button for 1 second to exit the relative mode Auto range Manual Range Button Press to select the Manual Range mode and the annunciator turn on and The meter remains in the same range it was In the ...

Page 7: ...nd to exit the MAX MIN mode AC DC Current Select and Ω Select Button To select function AC or DC in current Ampere range To select continuity measurements or Resistance measurement at range Function Selector Switch For power OFF and selection of desired Function Range COM Measuring Connector To connect negative lead black test lead for voltage frequency current resistance diode and continuity meas...

Page 8: ...and or damage to this instrument Connect red test lead to V jack and black test lead to COM jack Set Range Switch to V range Connect the test leads IN PARALLEL to the circuit being measured Read the Voltage value on LCD 2 2 3 AC Voltage Measurements WARNING Maximum Input Voltage is 1000V DC 750V AC Do not attempt to Take any voltage measurement that may exceed to avoid Electrical shock hazard and ...

Page 9: ...ck Set Range selector Switch to desired A range and press DC AC button to select AC DC function Cut the power to the circuit to be tested and Connect the instrument IN SERIES with the circuit with the black test lead on the negative side and the red lead on the positive side being measured Apply power and read the ampere value on LCD 2 2 5 Diode Tests WARNING Before taking any in circuit measureme...

Page 10: ...t measurement remove power from the circuit being tested and discharge all capacitors in the circuit Connect red test lead to Ω jack and black test lead to COM jack Set Range Switch to range and press button to Ω function Connect test lead to the circuit being measured and read the resistance value on LCD 2 2 7 Continuity Measurements WARNING Before taking any in circuit measurement remove power f...

Page 11: ...est is available to check open short of the circuit Open circuit Short circuit 2 2 8 Frequency Measurements Connect red test lead to Hz jack and black test lead to COM jack Set Range Switch to Hz range Connect the test lead IN PARALLEL to the circuit being measured Read the frequency value on LCD 3 BATTERY FUSE REPLACEMENT WARNING To prevent electrical hazard or shock turn off multimeter and disco...

Page 12: ...AA1 5V 3 Place back the rear cover and secure it with the original screw 3 2 FUSE Replacement 1 Set Range Switch to OFF position Use a screwdrive to remove the rear cover Take out the malfunction fuse and replace it with a new fuse rated 0 5A 250A or 10A 250V of fast blow type 2 Place back the rear cover and secure it with the original screw WARNING For safety use exact replacement Fuse 1 F0 5A 25...

Page 13: ... before opening the case and close the case before using the meter To prevent fire and possible arc flash use fuses with ratings shown on the back of the meter Caution To avoid contamination or static damage do not touch the circuit board without proper static protection ...

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