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Mastech MS5203, Manual

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Mastech MS5203 Manual Download Page 21

Insulation Tester

19

MAX/

MAX/

MAX/

MAX/ MIN/AVG

MIN/AVG

MIN/AVG

MIN/AVG

The meter will record the max , min and average value automatically. The record time base is approx. 5 seconds. Press
SELECT to view the corresponding value.

DAR

DAR

DAR

DAR &

&

&

& PI

PI

PI

PI

Sometimes an insulation part with obvious drawbacks (e.g., the insulation part is broken through under high voltage) is

nevertheless with a good absorption ratio (or polarization index). Therefore, absorption ratio (polarization index) cannot
be used to discover local insulation drawbacks other than dampness and contamination.

R10Min= Resistance value measured 10 minutes after applying the test voltage; R1Min=R60Sec= Resistance value
measured 10 minutes after applying the test voltage; R15Sec= Resistance value measured 10 minutes after applying the
test voltage
After performed insulation test,press SELECT button to view DAR or PI .If DAR or PI Value invalid, the meter display - -
- - .

DAR

（

absorbing ratio

）

=

Sec

R

Sec

R

15

60

PI(

polarization index

)

=

Min

R

Min

R

1

10

Summary of Contents for MS5203

Page 1: ...Input Terminal 9 Function Function Function Function Description Description Description Description 9 9 9 9 Power Up Options 9 Automatic Power Off 10 Hold Funcion 10 Relative Measurement 10 Insulation Test Lock 11 Storing Test Data 11 Reading Test Data 12 Delete Data 13 Compare Function 14 Timer Function 17 MAX MIN AVG 19 DAR PI 19 Making Making Making Making Basic Basic Basic Basic Measurements ...

Page 2: ... Measuring Resistance 22 Insulation Test 22 Replacing Replacing Replacing Replacing battery battery battery battery 24 24 24 24 Specifications Specifications Specifications Specifications 25 25 25 25 Accuracy 26 ...

Page 3: ...own voltage Do not apply more than the rated voltage as marked on the Meter between the terminals or between any terminal and earth ground Use caution with voltages above 30 V ac rms 42 V ac peak or 60 V dc These voltages pose a shock hazard Replace the battery as soon as the low battery indicator appears Disconnect circuit power and discharge all high voltage capacitors before testing resistance ...

Page 4: ...ccident or abnormal conditions of operation or handling This warranty does not apply to fuses disposable batteries Accessories Accessories Accessories Accessories Item Item Item Item Test Leads Clips Battery AA LR6 Manual Q Q Q Quantity uantity uantity uantity 2 2 6 1 Introduction Introduction Introduction Introduction Front Front Front Front Panel Panel Panel Panel Screen Button Rotary Switch But...

Page 5: ... the battery To avoid false readings which could lead to possible electric shock or personal injury replace the battery as soon as the low battery indicator appears Indicates a test lock will be applied the next time you press Test Button on the meter the test lock acts to hold down the button until you press Test Button again Hold function the meter do not update display Analog Bar Primary Screen...

Page 6: ...y the DAR value In insulation test mode display the PI value Timer function is selected Store function is selected View the memory data when the data is invalid display DC Voltage function is selected AC Voltage function is selected In insulation test mode test voltage unit Minus When the measure value lower than 0 display the sign Greater symbols In insulation test mode indicates the measure valu...

Page 7: ...on or off Source voltage rating for insulation test Timer unit Measure unit Display the Max Min Avg value Display Display Display Display M M M Messages essages essages essages Indicator Indicator Indicator Indicator Description Description Description Description batt Appears on primary display Indicates the battery too low for reliable operation please replace battery bat Appears on Auxiliary di...

Page 8: ... on the input terminals DISC In insulation mode indicates the meter performs the auto discharge function not to touch any input terminals in this mode SAVE Store measuring data dEL n Delete the selected data dEL ALL Delete all memorized data COMP Hi The upper limited value COMP Lo The lower limited value COMP The limited value is invalid Beep function is disabled ...

Page 9: ...Insulation Tester 7 Buttons Buttons Buttons Buttons ...

Page 10: ...nsulation mode to view max value min value avg value upper limited value lower limited value preset timer DAR PI 4 Confirm Button 5 Back Light on Off when the light turn on after 10S the meter auto turn off light 6 Active the timer function 7 Active hold function in DCV ACV Continuity or lock function Insulation 8 Active rel function in dcv acv continuity mode change cursour position 9 Active comp...

Page 11: ...mmon terminal in Inuslation measure F F F Function unction unction unction Description Description Description Description Power Up Power Up Power Up Power Up Options Options Options Options Holding a button down while turning the Meter on activates a power up option Power up options allow you to use additional features and functions of the Meter To select a power up option hold down the appropria...

Page 12: ...er off feature has been disabled by pressing SELECT button when the Meter is turned on Hold Hold Hold Hold Funcion Funcion Funcion Funcion Press Hold button to freeze the displayed value Press again to release the display Relative Relative Relative Relative Measurement Measurement Measurement Measurement Show the difference between actual value and the relative base Press REL REL REL REL Button to...

Page 13: ...press Test button again The test lock will unlocked while to cancel insulation test Lock function is invalid when timer function is selected S S S Stor tor tor toring ing ing ing Test Test Test Test Data Data Data Data Press MEMO button the meter enter Hold status automatically LCD screen display MEMO and the memory code on secondary display see below Press button to change the code press enter to...

Page 14: ...Buttons 12 Read Read Read Reading ing ing ing Test Test Test Test Data Data Data Data Press READ button to display the data in memory Press button to change the code and read the data accordingly ...

Page 15: ...lete D D D Data ata ata ata In READ mode press ENTER meter display dEL n press enter button again to delete selected data press READ button to delete all data The meter will beep once the data is deleted Press other button to quit the current satus ...

Page 16: ...ed value is lower than the lower limited value COMP function is invalid meter display Press COMP button to view the upper and the lower limited value The meter display COMP and display HI or LO on secondary screen as below When the meter is displaying the upper limited value or the lower limited value press ENTER to adjust the value The meter will be flashing with the upper limited value or the lo...

Page 17: ...Insulation Tester 15 ...

Page 18: ...Buttons 16 Timer Timer Timer Timer Function Function Function Function The timer function can only be activated in the insulation test Enable the TIMER function by pressing TIMER the ...

Page 19: ...ay will be as following The current voltage and time is shown on the secondary display The meter just display the test voltage when it is under the insulation test to check the time please press button Press SELECT to check the preset time The LCD screen display TIMER PRES is shown on primary display the secondary display shows the preset time Press ENTER the meter display Set The time can be adju...

Page 20: ...Buttons 18 Presws ENTER again to confirm the adjustment ...

Page 21: ...ption ratio or polarization index Therefore absorption ratio polarization index cannot be used to discover local insulation drawbacks other than dampness and contamination R10Min Resistance value measured 10 minutes after applying the test voltage R1Min R60Sec Resistance value measured 10 minutes after applying the test voltage R15Sec Resistance value measured 10 minutes after applying the test vo...

Page 22: ...easurements Measurements Measurements Measurements Measuring Measuring Measuring Measuring DC DC DC DC Voltage Voltage Voltage Voltage Switch rotary switch to DCV position Input terminals and test leads connecting as follows figure then connect test leads to circuit ...

Page 23: ... 21 Measuring Measuring Measuring Measuring AC AC AC AC Voltage Voltage Voltage Voltage Switch rotary switch to ACV position Input terminals and test leads connecting as follows figure then connect test leads to circuit ...

Page 24: ...s and test leads connecting as follows figure The continuity test features a beeper that sounds as long as a circuit is complete The beeper sounds when a short 3 Ω Insulation Insulation Insulation Insulation Test Test Test Test Insulation tests should only be performed on dead circuits Check the test leads before testing Switch rotary to Insulation position if meter display please replease battery...

Page 25: ...the screen alternate turn on or off the primary screen display the resistance value and the secondary screen display the Output voltage Release the test button then discharges through the Meter the meter display DISC The secondary Display 0 VDC indicator when the voltage discharge finished Disconnect the test leads from circuit ...

Page 26: ...tery battery battery To avoid false readings which could lead to possible electric shock or personal injury replace the batteries as soon as the battery indicator appears Turn the rotary switch to OFF and remove the test leads from the terminals 1 Screw 2 Battery ...

Page 27: ...nto 1 MΩ with a duty cycle of 5 seconds on and 25 seconds off Insulation Measurement Range 0 01 MΩ to 10 00 GΩ Insulation Test Voltages 50 100 250 500 1000 V Insulation Source Voltage 20 0 Insulation Short Circuit Test Current 1 8mA nominal Insulation Auto Discharge Discharge time 2 second for C 1 μF or less Insulation Live Circuit Detection Inhibit test if terminal voltage 20 V prior to initializ...

Page 28: ...CV DCV DCV DCV RANGE RESOLUTION ACCURACY 200V 0 1V 0 5 5 1000V 1V 0 5 5 ACV ACV ACV ACV RANGE RESOLUTION ACCURACY 50 60Hz 200V 0 1V 1 5 5 750V 1V 1 5 5 Resistance Resistance Resistance Resistance RANGE RESOLUTION ACCURACY 20Ω 0 01Ω 1 5 200Ω 0 1Ω 1 5 ...

Page 29: ...0 01 MΩ 1mA 50K 3 5 20 50MΩ 0 1 MΩ 100V 0 20 0 20MΩ 0 01 MΩ 1mA 100K 3 5 20 100MΩ 0 1 MΩ 250V 0 20 0 20MΩ 0 01 MΩ 1mA 250K 3 5 20 200MΩ 0 1MΩ 200 250MΩ 1MΩ 500V 0 20 0 20MΩ 0 01 MΩ 1mA 500K 3 5 20 200MΩ 0 1MΩ 200 500MΩ 1MΩ 1000V 0 20 0 200MΩ 0 1 MΩ 1mA 1000K 3 5 200 1000MΩ 1 MΩ 1 00 5 00GΩ 0 01 GΩ 5 0 1 GΩ 5 00 10 00GΩ 0 01 GΩ 10 0 2GΩ ...

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