Kusam-meco 90 Manual
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Kusam-meco 90 Manual

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Digital Multimeter
Model - 90
â
Connect Test Leads
!
m
AmA
Hz
H
OLD
200
20k
°C
2k
hEF
20k
POWER
Fcx
2n
20n
m
2
20
m
2m
...
A
200m
20
CE
1000
20
200
V~
200m
20
2
A~
20m
°C
A
mA
V
W
!
90
mA
COM
W
2M
200M
200
m
2
...
V
20
200
1000
COM
!

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Summary of Contents for Kusam-meco 90

  • Page 1 Digital Multimeter Model - 90 â Connect Test Leads ® °C POWER 200M 200m 1000 1000 200m °C...
  • Page 2 “KUSAM-MECO’s” Even if you correctly insert your DMM into the opinion, has been misused, altered, neglected, circuit, you can still damage your meter.

  • Page 3: Table Of Contents

    C. AC Current Measurement D. DC Current Measurement DATE: ___________ E. Measuring Resistance F. Measuring Capacitance G. Measuring Temperature H. Measuring Frequency I. Diode Test & Continuity J. Transistor hFE Test ISO 9001:2015 KUSAM-MECO Maintenance REGISTERED PASS Replacing the Battery Test Certificate Warranty...

  • Page 4: Digital Multimeter

    “Rules for Safe Operation”carefully before as the battery indicator appears. using the Meter. Digital Multimeter Model - 90 (hereafter referred to as To replace battery : “the Meter”) is a 4½ digits Multimeter with steady ● Disconnect the connection between the testing...

  • Page 5: Features

    J. Transistor Testing To test the Transistors, connect the Meter as below : ● DMM - 90 has a unique feature wherein the 1. Insert the red test lead in the VW terminal & black LCD display shows the terminals where the test lead in COM terminal.

  • Page 6: General Specifications

    GENERAL SPECIFICATIONS : Testing Diodes Use the diode test function to check diodes, The Display : 4½ digit LCD. Maximum diode test sends a current through the Semi- reading 19999 with conductor junction, and then measures the voltage automatic sign and drop across the junction.

  • Page 7: Electrical Specifications

    ELECTRICAL SPECIFICATION : â DC Voltage Range Resolution Accuracy Connect Test Leads 200m V 0.01m V ±(0.05%rdg+3dgts) 0.0001 V °C POWER 200M 0.001 V ±(0.1%rdg+3dgts) 0.01 200m 1000 1000 V ±(0.15%rdg+5dgts) 1000 200m °C Input impedance : 10MW Black Overload protection : (Figure 10) 200mV range - 250 AC/DC 1000V range - 1000Vrms...

  • Page 8: Ac Current

    AC Current G. Temperature Measurement (see figure 9) Range Resolution Accuracy â 20 mA 0.001 mA ±(0.8%rdg+10dgts) 200 mA 0.01 mA ±(1.2%rdg+10dgts) Connect Test Leads 0.001 ±(2.5%rdg+10dgts) Overload protection : °C POWER 0.5A/250V fuse for 200 mA range 200M 20A unfused max. 10 sec. 200m 1000 1000...

  • Page 9: Frequency

    Frequency â Range Resolution Accuracy 20kHz ±(1.5%rdg+3dgts) Connect Test Leads Overload protection 250V rms °C POWER 200M 200m Temperature 1000 1000 200m °C Range Resolution Accuracy Black ~40°C~0°C ±(3%rdg+40dgts) 0°C~400°C 0.1°C ±(1%rdg+30dgts) 400°C~1000°C ±(2%rdg+50dgts) (Figure 8) Overload protection : 250V rms Capacitance measurement has 4 measurement positions on the rotary switch : 2nF, 20nF, 2mF and 20mF.

  • Page 10: Rules For Safe Operation

    Rules For Safe Operation (1) Then use the equation : Measured resistance value (Y) - (X) = precision Reading of resistance. Warning To avoid possible electric shock or personal ● When there is no input, for example in open injury, and to avoid possible damage to the circuit condition, the Meter displays “1”.

  • Page 11: The Multimeter Structure

    The Multimeter Structure (see figure 1) The DC current measurement has 3 measurement positions on the rotary switch : 2mA, 200mA, 20A. â To measure DC Current, connect the meter as follows : 1) Turn off power to the circuit. Discharge all High - Voltage capacitors.

  • Page 12: Functional Buttons

    3) INPUT JACKS (VW, mA, A and COM) : Caution Test leads are inserted into these jacks for ●If the value of current to be measured is unknown, Vo l t a g e , R e s i s t a n c e , C a p a c i t a n c e , use the maximum measurement position (20A) Te m p e r a t u r e , C u r r e n t m e a s u r e m e n t s ,...
  • Page 13 E. Resistance Measurement Rules For Safe Operation (2) (see figure 7) ●Disconnect circuit power and discharge all high Warning -voltage capacitors before testing resistance, To avoid damages to the Meter or to the devices continuity, diodes, or current. under test, disconnect circuit power and ●Replace the battery as soon as the battery discharge all the high-voltage capacitors before indicator...
  • Page 14 C. AC Current Measurement Display Symbols (see figure 2) (see figure 5) â Connect Test Leads °C POWER 200M Connect Test Leads 200m 1000 1000 200m °C Black (Figure2) (Figure 5) Symbol Meaning Warning : Dangerous Voltages. Never attempt an in-circuit current measurement where The battery is low.

  • Page 15: Display Symbols

    Display Symbols (see figure 2) The AC Voltage ranges are : 2V, 20V, 200V, 1000V. To measure AC voltage, connect the Meter as follows : Symbol Meaning 1) Insert the red test lead into the VW input terminal and the black test lead into the COM input terminal W, kW, MW W : Ohm.

  • Page 16: Measurement Operation

    Measurement Operation Caution : ● Make sure the Low Battery display is not on, ● If the value of voltage to be measured is unknown, otherwise false readings may be provided. use the maximum measurement position (1000V) and reduce the range step by step until a ●...

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