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02

1. Safety Information

The Auto Range Digital Multimeter (hereinafter referred 
to as“ the meter ”) complies with the safety requirements
for electronic measuring instruments in IEC-61010-1,
falls into pollution degree 2 and meets the over-voltage
standard of CAT 

ΙΙΙ

 600V.

Follow all safety and operation instructions to ensure safe
use of the meter.
With proper use and care, the meter will give you years of
satisfactory service.

1.1 Preliminary

1.1.1 To operate the meter, the user must observe the
          following normal safety rules:
          1) General protection against electric shock; and
          2) Protection of the meter against misuse
1.1.2 When the meter is received, please check whether
             it has been damaged during transport.
1.1.3 After being stored and delivered under harsh 
          conditions, the meter should be checked and 
          confirmed for damage.

1.2 Dos And Don’ts

1.2.1 Use the right input jack, function and range.
1.2.2 Do not take measurements beyond the protection 
          limits indicated in the specifications.
1.2.3 Do not touch the metal tips of the test probes when
          connecting the meter to the circuit to be measured.
1.2.4 Keep your fingers behind the probe barriers when
          taking a measurement with an effective voltage of
          above 60V DC or 30V AC.
1.2.5 Do not take any voltage measurement if the value
          between the measuring terminal and the ground
          exceeds 1000V.
1.2.6 Select the highest range if the value to be
          measured in the manual range is unknown.
1.2.7 Do not connect the meter to any voltage source 
          while the meter is in the current, resistance, diode
          or continuity test range.
1.2.8 Disconnect the test probes from the circuit under 
          test before turning the range selector to change 
          functions.
1.2.9 Be careful that high voltage pulses at the test point
          may damage the meter when measurements are 
          being taken on the switching power circuit of a 
          TV set.
1.2.10 Do not measure the resistance, diode or 
            continuity of live circuits.

BE EXTREMELY CAREFUL WHEN USING THE METER.
Improper use of this device can result in electric
shock or destruction of the meter. Take all normal
safety precautions and follow the safeguards
suggested in this manual.
To exploit full functionality of the meter and ensure
safe operation, Protection provided by the instrument
will be impaired if used in a manner not specified by
the manufacturer.

WARNING

1.1.4 The test probes must be kept in good condition. 
          Check whether the insulation of the test probes 
          has been damaged and whether any wire has
          been exposed.
1.1.5 Using the test probes supplied can ensure safety.
          If required, they must be replaced with those of
          the same model or class

01

Summary of Contents for MS8235

Page 1: ...TER OPERATION MANUAL MS8235 DIGITAL MULTIMETER LAN Teter 2 in 1 2000 counts Autorange FUNC RANGE MAX HOLD TEST Hz µA mA A Net Cable NCV Ω V V OFF IEC61010 1 600V CAT III 10A HzµAmA VΩ COM MAX 600V MAX 10A 500V MAX 200mA 1000V ...

Page 2: ...Of The Test Key 14 4 7 Preparation For Measurement 14 4 8 Measurement Of DC Voltage 15 4 9 Measurement Of AC Voltage 16 4 10 Diode Test 4 11 Circuit Continuity Test 4 12 Resistance Measurement 4 13 Measurement Of DC Current 17 17 18 19 20 21 23 4 15 Frequency Measurement 21 4 16 Network Cable Integrity Test 4 17 Non Contact Voltage Detection 4 18 Operating Precautions Of Protective Cover 24 4 19 A...

Page 3: ...of above 60V DC or 30V AC 1 2 5 Do not take any voltage measurement if the value between the measuring terminal and the ground exceeds 1000V 1 2 6 Select the highest range if the value to be measured in the manual range is unknown 1 2 7 Do not connect the meter to any voltage source while the meter is in the current resistance diode or continuity test range 1 2 8 Disconnect the test probes from th...

Page 4: ...the replacement fuse must meet the specified voltage and current ratings of F 10A 500V and F200mA 1000V quick acting 1 4 5 Use wet cloth and mild detergent to clean the meter do not use abrasives or solvents 1 4 6 Turn to OFF switch off the power when is not in use 1 4 7 Remove the batteries to avoid damages to the meter if it will idle for a long time 1 4 8 Using this appliance in an environment ...

Page 5: ...Guard plate 2 2 Switch Buttons And Input Jacks HOLD key MAX key RANGE key For switching between auto and manual ranges FUNC key For switching among measuring functions Backlight key TEST key For measurement 10A jack Input jack for 10A current range mA A V jack and diode measurement COM jack Common terminal For reading holding μ Ω For maximum measurement For switching on off the backlight For mA μA...

Page 6: ...r 4 5 Cable pair 7 8 SHIELD Cable shield OPEN Open circuit SHORT Short circuit REVERSED Reverse connection MISWIRE Miswiring SPLIT PAIRS Split pair Audio signal 3 Specifications 3 1 General 3 1 1 Auto range and manual range options are available 3 1 2 Overload protection is available for all ranges 3 1 3 Display LCD 3 1 4 Maximum value display 1999 digits 3 1 5 Polarity indication automatic for ne...

Page 7: ...1 DC Voltage Accuracy Resolution 0 1mV Range 200mV 0 5 of reading 5digits 2V 20V 200V 1000V 1mV 1V 0 1V 0 01V 0 8 of reading 5digits Max input voltage 1000V DC Note At the low voltage range unsteady readings will appear before the test probes contact the circuit This is normal because the meter is highly sensitive When the test probes contact the circuit the true reading will be displayed 3 2 2 AC...

Page 8: ... 0 1mA 0 001A 0 01A Overload protection μA mA range fuse 200mA 1000V quick acting 10A range fuse 10A 500V quick acting Max input current μA mA jack μA range 2000uA μA mA jack mA range 200mA 10A jack 10A 3 2 7 AC Current Accuracy Resolution Range 3 0 of reading 5 digits 1 5 of reading 5digits 200μA 2000μA 20mA 200mA 2A 20A 0 1μA 1μA 0 01mA 0 1mA 0 001A 0 01A Overload protection μA mA range fuse 200...

Page 9: ...4 5 Backlight Source 1 If the environment is too dark for reading during measurement hold on to the key for more than 2 seconds to turn on the backlight source 2 Hold on to the key again for more than 2 seconds to turn off the backlight source 3 After the backlight source is turned on if the key is not held down for more than 2 seconds the backlight source will shut down automatically 15 seconds l...

Page 10: ... and a higher range should be selected 3 In the manual range mode if the scale of the measured value is unknown beforehand the highest range should be set and then lowered down gradually 4 9 Measurement Of AC Voltage WARNING There is the risk of electric shock Pay special attention to avoid electric shock when measuring high voltages Do not input any voltage of over AC750V rms which may damage the...

Page 11: ...e resistance of the circuit under test is less than 70Ω the buzzer in the meter will beep 4 11 6 Read the resistance of the circuit in the main display area of the LCD Note If the test probes are open or the resistance of the circuit under test is over 200Ω 0L will be displayed on the LCD 4 12 Resistance Measurement WARNING There is the risk of electric shock When measuring the impedance of a circ...

Page 12: ...be set 3 means the maximum input current of the mA jack is 200mA and that of the 10A jack is 10A At the 10A jack excess current will blow the fuse 4 14 Measurement Of AC Current WARNING There is the risk of electric shock Turn off the power of the circuit under test and then connect the meter to the circuit in series for measurement 4 14 1 Plug the black probe into the COM jack When the current to...

Page 13: ...g split pair reverse connection and shield integrity and any abnormality can be specified 4 16 2 Insert both ends of the cable into the jacks in the front and lower part of the meter 4 16 3 Press the TEST key for testing If the abnormality remains after the test the Abnormal symbol will flash 4 16 4 The front jack box can be separated to detect any fixed cable as the remote terminal conveniently 4...

Page 14: ...n contact voltage detection function to judge whether a voltage is present on a shielded wire The detection operation may be affected by such factors as socket design insulation thickness and type of wires 4 18 Operating Precautions Of Protective Cover WARNING There is the risk of electric shock After the protective cover is lost the voltage and current measurement function of the meter should be ...

Page 15: ...ement the meter will be shut down and enter the sleeping mode to save electricity 4 19 2 To disable the automatic power off function hold on to the HOLD key to start up the meter or press the HOLD key in the sleeping mode to wake it up 5 Maintenance 5 1 Replacement Of Batteries 5 1 1 When the symbol is displayed the batteries should be replaced immediately 5 1 2 Turn the range selector to OFF and ...

Page 16: ... the screws 5 2 3 Remove the rear case pry up one end of the fuse gently and then remove the fuse from the clip 5 2 4 After a new fuse is mounted replace the rear case and fasten the screws 27 28 5 3 Replacement Of Test Probes WARNING The test probes must be replaced with those of the same model or class and must be kept in good condition Ratings of test probes CAT III 600V 10A If the insulation o...

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