Kusam-meco KM 877, Operating Manual

®

13

0600

V

SELECT

RANGE

HOLD

H

LOCK

.

p

p

FORWARD BIAS

REC

INSULATION

R

TEST

200mA

 INS.

–

 INS.

+

JACK

W

V

COM

HBC FUSED

(0.25A)

HBC FUSED

(0.4A)

1000V CAT III

MAX

600V CAT IV

INSULATION

–

+

–

+

OL

V

SELECT

RANGE

HOLD

H

LOCK

.

p

p

REVERSE BIAS

REC

INSULATION

R

TEST

200mA

 INS.

–

 INS.

+

JACK

W

V

COM

HBC FUSED

(0.25A)

HBC FUSED

1000V CAT III

MAX

600V CAT IV

INSULATION

–

+

–

+

Discharge capacitors before making any measurement. Large value
capacitors should be discharged through an appropriate resistance
load.

CAUTION :

Normal  forward  voltage  drop  (forward  biased)  for  a  good  silicon
diode  is  between  0.400V  to  0.900V.  A  reading  higher  than  that
indicates  a  leaky  diode  (defective).  A  zero  reading  indicates  a 
shorted diode (defective). An OL indicates an open diode (defective).
Reverse  the  test  leads  connections  (reverse  biased)  across  the 
diode. The  digital  display  shows  OL  if  the  diode  is  good. Any  other
readings  indicate  the  diode  is  resistive  or  shorted  (defective).

Diode Test Function

W

    Diode Test function is combined to its     /    /      Rotary Knob 
position.

PI/DAR

ZERO

COMPARE

W

V

HzV

VFD

OFF

INSULATION

50V

100V 250V 500V

1kV

200mA

1

SELECT

ZERO

COMPARE

PI/DAR

W

V

HzV

VFD

OFF

INSULATION

50V

100V 250V 500V

1kV

200mA

(0.4A)

12

®

W

  Resistance,       Continuity

Press the 

SELECT

 button momentarily to toggle the functions. Last

selection will be saved as power up default for repeat measurement
convenience.          Continuity  function  is  convenient  for  checking 
wiring  connections  &  operation  of  switches.    A  continuous  beep 
tone indicates a complete wire.

Using  resistance  or  continuity function in a live circuit will produce 
false  results  and  may  damage the instrument. In many cases the 
suspected  component  must  be  disconnected  from  the  circuit to 
obtain an accurate reading.

CAUTION :

AUTO

0

6

k

SELECT

RANGE

HOLD

H

LOCK

.

REC

INSULATION

R

TEST

200mA

 INS.

–

 INS.

+

JACK

W

V

COM

HBC FUSED

(0.25A)

HBC FUSED

(0.4A)

1000V CAT III

MAX

600V CAT IV

INSULATION

–

+

–

+

W

0

6

SELECT

RANGE

HOLD

H

LOCK

.

REC

INSULATION

R

TEST

200mA

 INS.

–

 INS.

+

JACK

W

V

COM

HBC FUSED

(0.25A)

HBC FUSED

1000V CAT III

MAX

600V CAT IV

INSULATION

–

+

–

+

W

V

HzV

VFD

OFF

INSULATION

50V

100V 250V 500V

1kV

200mA

W

ZERO

COMPARE

PI/DAR

(0.4A)

W

V

HzV

VFD

OFF

INSULATION

50V

100V 250V 500V

1kV

200mA

ZERO

COMPARE

PI/DAR

1

SELECT