Mastech ms5908 Operation Manual Download Page 1 | Manualshive

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Ω

TEST

mA

VA

ms

Hz%

VA

ms

%

AC

L - N

L - E

N - E

Peak

Z - L

Z - N

Z - E

ASCC

12 A 15 A 20 A

HOLD

N

E

L

V

Vd

Z

RCD

GFCI

MS5908

Circuit Analyzer

Operation Manual

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Summary of Contents for ms5908

Page 1: ...TEST mA VA ms Hz VA ms AC L N L E N E Peak Z L Z N Z E ASCC 12 A 15 A 20 A HOLD N E L V Vd Z RCD GFCI MS5908 Circuit Analyzer Operation Manual...

Page 2: ...ility of residual current device RCD and response action time Test the reliability of GFCI action and response action time Backlight function and data hold function Warning Do not use this instrument...

Page 3: ...em selection key 5 Data hold key 6 Backlight function key 7 Sub test item up selection key 8 Sub test item down selection key 9 Test key TEST mA VA ms Hz VA ms AC L N L E N E Peak Z L Z N Z E ASCC 12...

Page 4: ...voltage drop of 12A 15A and 20A load separately Under the appropriate test function press the test key to test d Menu Operation The main test items of the analyser are located on the bottom of display...

Page 5: ...tween live line and earth line to test the performance of GFCI Press the test key to test 12 A 15 A 20 A Impedance Z real time display of line connection status and frequency and display of the impeda...

Page 6: ...off is automatically cancelled When auto power off function is enabled if there is no other key operation for 30 minutes the analyser will automatically turn off Data hold function press the key to en...

Page 7: ...between two live lines 2 Combined fault 3 Reverse connection of earth line and neutral line Voltage measurement The normal measured value of phase voltage is 120V 10 60Hz The peak voltage of sine wave...

Page 8: ...the current source Is there any multipoint ground Does the equipment or device leak current Three phase imbalance Check and redistribute the load 2V 2V Voltage to earth of zero line Harmonic interfere...

Page 9: ...nnection point equipment and switchboard and the connection of breaker air break switch Usually a high impedance point generates heat To locate this problem infrared radiation thermometer can be used...

Page 10: ...ter is too small for the power transmission length or the quality of equipment parts or connector is poor Usually the earth line impedance is less than 1 to provide a free discharge route for failure...

Page 11: ...3 m Residual current device RCD test During the RCD test the analyzer will generate a low current between live line and earth line by means of a fixed resistance which will affect the current balance...

Page 12: ...ch will affect the current balance between live line and zero line The GFCI shall response to the current imbalance by cutting off the power The analyzer will display the value of the current triggere...

Page 13: ...ative humidity Physical dimension 193mm L 78mm W 38mm D Power source Six AAA batteries Weight 295g including batteries Accuracy index Accuracy reading words one year guarantee Reference conditions Amb...

Page 14: ...partment and open the cover 4 Replace the batteries 5 Ensure the batteries are installed properly Do not mismatch polarity 6 Put back the cover and tighten the screws Maintenance Battery installation...

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