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MS8321B

  Digital Multimeter
        

Summary of Contents for MS8321B

Page 1: ...MS8321B Digital Multimeter ...

Page 2: ...nes 1 2 6 Automatic Power Off 5 3 2 Technical Specifications 7 3 2 1 DC Voltage 7 3 2 2 AC Voltage 7 3 2 4 AC Current 8 3 2 5 Resistance 9 3 2 6 Continuity Diode Test 9 3 2 3 DC Current 8 3 2 7 Temperature Test 9 4 Operating Instructions 10 4 1 DC AC Voltage 10 4 2 Resistance 10 4 3 DC AC Current 11 4 4 Diodes 12 4 5 Continuity 12 4 6 Temperature 13 5 Maintenance 14 5 1 Cleaning the Meter 14 4 7 B...

Page 3: ...ged have the meter serviced before using Do not place meter in a strong magnetic field this may cause false readings Do not place the meter in any environment with high pressure high temperature dust explosive gas or vapor 1 Introduction This digital multimeter can measure AC DC voltage AC DC current resistance diode the voltage of battery temperature The meter complies with international safety s...

Page 4: ...the manual F1 400mA 600V and F2 10A 600V Before opening the case always disconnect test leads from all energized circuits Never use the meter unless the back cover is in place and fastened securely If any abnormality is observed stop using the meter and send it in for repair If the meter is not going to be used for an extended period of time remove the batteries and avoid storing in a hot humid en...

Page 5: ... x36 H mm Weight approx 220g including battery 05 06 2 2 Display 3 digit 15mm LCD display 2 3 Hold Button Press to keep the current reading on the display Press the button again to return to normal display 2 4 Rotary Switch The rotary switch is used to switch between functions ranges Functions are voltage current resistance diode continuity and transistor gain 2 5 Input Jacks VΩmA C F voltage resi...

Page 6: ...ponding 3 2 3 DC Current Resolution Accuracy 2mA 1µA 10µA 10mA 20mA 10A 2 0 of reading 5 digits Measuring range 1 0 of reading 3 digits Overload Protection F1 400mA 600V F2 10A 600V Max Input Current mA 200mA DC or AC rms 10A continuous do not exceed 15 sec 3 2 4 AC Current Resolution Accuracy 10µA 10mA 20mA 10A 3 0 of reading 10 digits Measuring range 1 2 of reading 5 digits Overload Protection F...

Page 7: ...it under test Read the measured voltage on the display When measuring DC voltage the display will show the polarity of the red lead If the display only shows 1 it indicates the input exceeds the selected range Move the rotary switch to a higher range 4 Operating Instructions 4 1 DC AC Voltage Warning Max input voltage 600V DC or AC rms 200mV range is 250V DC or AC rms Do not exceed the protection ...

Page 8: ...isplay only shows 1 it indicates the input exceeds the selected range Move the rotary switch to a higher range 4 4 Diodes Turn the rotary switch to the position Connect the red test lead to the input jack and the black test lead to the COM jack Connect the red lead to the anode and the black lead to the cathode of the diode The meter displays the forward voltage drop of the diode If the leads are ...

Page 9: ...12V 9V 1 5V Connect the red test lead to the input jack and the black test lead to the COM jack Connect the red lead to the positive terminal and the black lead to the negative terminal of the battery under test Read the voltage value of the battery on the display 5 Maintenance 5 1 Cleaning the Meter Warning Before opening the back cover turn off the meter and disconnect test leads from any circui...

Page 10: ...s F1 400mA 600V F2 10A 600V The replacement should be of the same specification 3 The battery for this multimeter is 9V NEDA 1604 or 6F22 The replacement should be of the same specification 4 Don t put the instrument into use until the rear cover is screwed after replacing battery or fuse To avoid electric shock make sure the probes are disconnected from the measured circuit before removing the re...

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