background image

®

17

.

ºC

Test Voltage

SELECT

RANGE

ZERO

HOLD

H

LOCK

REC

INSULATION

R

TEST

Hz

Temp mA

Hz

mV

200mA

W

V

HzV

VFD

OFF

INSULATION

50V...1000V

200mA

 INS.

mA

 INS.

+
Temp

JACK

W

V

COM

HBC FUSED

(0.25A)

HBC FUSED

MAX 0.6A

1000V CAT III

MAX

600V CAT IV

INSULATION

+

Temp

+

+

+

ºF

.

ºF

+

+

1

Test Voltage

SELECT

RANGE

ZERO

HOLD

H

LOCK

REC

INSULATION

R

TEST

Hz

Temp mA

Hz

mV

200mA

W

V

HzV

VFD

OFF

INSULATION

50V...1000V

200mA

 INS.

mA

 INS.

+
Temp

JACK

W

V

COM

HBC FUSED

(0.25A)

HBC FUSED

MAX 0.6A

1000V CAT III

MAX

600V CAT IV

INSULATION

+

SELECT

+

Note :

 Be  sure to insert the banana plug type-K temperature bead

probe  Bkp60  with  correct

  +  – 

polarities. You  can  also  use  a  plug

adapter  Bkb32  (Optional  purchase)  with  banana  pins  to  type-K
socket  to  adapt  other  standard  type-K  mini  plug  temperature
probes. 

+Hz

DCmA, ACmA  functions

 :

Press   the  

SELECT  

 button  momentarily  to  toggle  the  subject

functions.  Last  selection  will  be  saved  as  power  up default for
repeat measurement convenience.

Temperature functions

 :

Press  

SELECT 

 button momentarily  to toggle ºC and ºF readings.

Last  selection  will  be  saved  as  power  up  default  for  repeat 
measurement convenience.

®

18

HzV

OFF

VFD

AUTO

0

6

m

Test Voltage

SELECT

RANGE

ZERO

HOLD

H

LOCK

.

REC

INSULATION

R

TEST

Hz

Temp mA

Hz

mV

200mA

INSULATION

50V...1000V

A

Hz

Hz

mA

.

W

V

200mA

 INS.

mA

 INS.

+

Temp

JACK

W

V

COM

HBC FUSED

(0.25A)

HBC FUSED

MAX 0.6A

1000V CAT III

MAX

600V CAT IV

INSULATION

+

+

mA

Hz

HzV

OFF

VFD

AUTO

0

6

m

Test Voltage

SELECT

RANGE

ZERO

HOLD

H

LOCK

.

REC

INSULATION

R

TEST

Hz

Temp mA

Hz

mV

200mA

INSULATION

50V...1000V

A

mA

W

V

200mA

 INS.

mA

 INS.

+

Temp

JACK

W

V

COM

HBC FUSED

(0.25A)

HBC FUSED

MAX 0.6A

1000V CAT III

MAX

600V CAT IV

INSULATION

+

+

SELECT

1

Earth Continuity Test Function

 :

This  function  measures  the 
Resistance  values  of  earth 
connection  &  equipotential 
bonding  in  Low  Voltage 
Distribution  Systems  upto 
Nominal  Voltage  (Un)830V, 
Phase-to-phase.  DO NOT use 
on  Systems  with  Nominal 
V o l t a g e s   a b o v e   t h a t .  
Measurements  shall  only  be 
carried  out  on  de-energized 
circuits.  

TEST

The LCD icon        used alone throughout in this manual is referred 
as active measurements of Earth Continuity Test Function through 
the activation of the 

TEST

 button on the meter or on the Remote 

Probe.   Check  the  fuse  before  each       . If the  fuse  is  open,  the 
meter  will  display 

“OPEn”

  when  the            is  being  activated  at  no 

circuit connection to the probes.  Refer to the maintenance section 
for fuse replacement.

       is inhibited when the meter beeps and displays 

“>2V”

 plus         

warning  against   energized   circuit   of   more   than  2V  is  being 
connected,  before  the         is   active.  Connecting   to  energized 
circuits  when  the         is  active will  produce  false  results & may 
blow the protection fuse  and / or damage  the  instrument.  Always 
check  with  voltage  function  &  remove   power  from  the  circuits 
before carrying out the        .

TEST

TEST

TEST

The  measuring  loop  is  protected  by an HBC 1KV F fuse against 
accidental extraneous overvoltages.

TEST

TEST

TEST

Содержание KM 878

Страница 1: ...C 18ºC or 28ºC 40ºC or otherwise specified Low Battery approx 4 6V APO Timing Idle for 20 minutes APO Consumption 50m A typical Dimension 208 L X 103 W X 64 5 H mm with holster Weight 635 gm with holster TRUE RMS DIGITAL INSULATION MULTIMETER MODEL KM 878 Preliminary Data D Chhaya My Documents Chhaya backup catlogs NEW CAT 2013 2014 KM 878 cdr An ISO 9001 2008 Company SPECIAL FEATURES All Specific...

Страница 2: ... 0 V 1 V 1000 V Unspecified 3kHz 5kHz 4 rdg 5dgts 1 mV 6 000 V 10 mV 60 00 V 100 mV 600 0 V 1 V 1000 V Unspecified Range VFD AC VOLTAGE 1 Accuracy Resolution 10Hz 45Hz 4 rdg 5dgts 100 mV 600 0 V 45Hz 200Hz 2 rdg 5dgts 100 mV 600 0 V 1 Unspecified for fundamental frequency 440Hz 2 Accuracy linearly decreases from 2 5d 200Hz to 7 5d 440Hz Input impedance 10M 110pF nominal W 200Hz 440Hz 7 rdg 5dgts 2...

Страница 3: ...250 V 500 V Range Test Current 1mA 50kW 1mA 100kW 1mA 250kW 1mA 500kW Accuracy 1 5 rdg 5dgts 3 000M 30 00M 300 0M W W W 1000 V 3000MW 25 0GW 1mA 1MW 10 rdg 5dgts 1 5 rdg 5dgts 2 0 rdg 5dgts 550 0MW Open Circuit Voltage 4VDC Live Circuit Detector Inhibit test if terminal voltage 2V prior to initialization of test Specified measuring range at percentage operating uncertainly B 30 per IEC EN61557 4 r...

Страница 4: ...000 0 433 0 416 3 8 2 000 0 331 0 243 26 5 2 000 0 242 0 130 46 2 One limitation to making true RMS measurements is crest factor and you should consider crest factor when making AC measurements Crest factor is the ratio of a waveform s peak crest voltage to its RMS voltage Table 2 shows the crest factors for ideal waveforms Table 2 Crest factors of typical waveforms Waveform Crest Factor DC Sine W...

Страница 5: ...er Distance Meter Digital Lux Meter Network Cable Tester Power Factor Regulator Earth Resistance Tester Digital Panel Meters DC Power Supplies High Voltage Detector Calibrators Gas Analysers Frequency Counter Function Generator Phasing Sticks Battery Tester Waterproof Pen Testers Solar Power Meter EMF Detector Wood Paper Grain Moisture Meter Transistorised Electronic Analog Digital Insulation Resi...

Страница 6: ...R MODEL KM 878 TABLE OF CONTENTS TITLE PAGE NO I II Cenelec Directives Safety III Special Features V Product Description Test Certificate IX Warranty IV General Specifications VI Operation VII Maintenance VIII 01 03 03 04 12 13 25 27 28 ...

Страница 7: ...xpose this product to rain or moisture To avoid electrical shock hazard observe the proper safety precautions when working with voltages above 60 VDC or 30 VAC rms These voltage levels pose a potential shock hazard to the user Do not touch test lead tips or the circuit being tested while power is applied to the circuit being measured Keep your fingers behind the finger guards of the test leads dur...

Страница 8: ... 108 EC 04 IV GENERAL SPECIFICATIONS Display 3 5 6 digits 6 000 counts Polarity Automatic Update Rate 5 per second nominal 61 Segments Bar graph 40 per second max Operating Temperature 10ºC to 40ºC Relative Humidity Maximum relative humidity 90 for temperature up to 28ºC decreasing linearly to 50 relative humidity at 40ºC Pollution degree 2 IP Rating IP40 Storage Temperature 20ºC to 60ºC 80 R H wi...

Страница 9: ... Earth Eontinuity Test measurements with new alkaline batteries at room temperature These are standard tests of 1W with a duty cycle of 5 seconds on and 25 seconds off 06 ELECTRICAL SPECIFICATIONS Accuracy is reading digits number of digits or otherwise specified at 23C 5C less than 80 relative humidity True RMS voltage current accuracies are specified from 1 to 100 of range or otherwise specified...

Страница 10: ...d 440Hz Input impedance 10M 110pF nominal W VFD AC Voltage 1 Accuracy Resolution Range 600 0 V 4 rdg 5dgts 100 mV 10Hz 45Hz 600 0 V 2 rdg 5dgts 100 mV 45Hz 200Hz 600 0 V 2 7 rdg 5dgts 100 mV 200Hz 440Hz 08 ACmV Input Impedance 10MW 140pF nominal Accuracy Resolution Range 60 00 mV 600 0 mV 1 rdg 3dgts 10 mV 100 mV 50Hz 60Hz 60 00 mV 600 0 mV 2 rdg 3dgts 10 mV 100 mV 60Hz 3kHz 60 00 mV 600 0 mV 3 rd...

Страница 11: ...ge at percentage operating uncertainty B 30 per IEC EN61557 4 requirements Accuracy Resolution Range 2 000 W 20 00 W 1 5 rdg 3dgts 200 mA 90 mA Measuring Range1 0 015W 2 199W 0 15W 21 99W DCmA Burden Voltage 3 0 mV mA Accuracy Resolution Range 60 00 mV 600 0 mV 0 5 rdg 3dgts 10 mV 100 mV 10 Resistance Open Circuit Voltage 1 5VDC typical 600 0 6 000 K 60 00 K 600 0 K 6 000 M 60 00 M W W W W W W 0 9...

Страница 12: ...y Test function 5 C o m m o n G r o u n d reference Input Jack for all functions EXCEPT Insulation Resistance function 6 Input Jack for all functions EXCEPT Earth Continuity Test mA functions 7 Input Jack for insulation function Ground reference INS or mA function positive input 0 6 Test Voltage SELECT RANGE ZERO HOLD REC INSULATION H R TEST HzTemp mA Hz mV 200mA W V HzV VFD OFF INSULATION 50V 100...

Страница 13: ... III MAX 600V CAT IV INSULATION LOCK VFD 1 SELECT AUTO V 0 6 V Test Voltage SELECT RANGE ZERO HOLD REC INSULATION H R TEST HzTemp mA Hz mV 200mA W V HzV VFD OFF INSULATION 50V 1000V 200mA INS mA INS Temp JACK WV COM HBC FUSED 0 25A HBC FUSED MAX 0 6A 1000V CAT III MAX 600V CAT IV INSULATION LOCK V 14 W Resistance Continuity Press the SELECT button momentarily to toggle the functions Last selection...

Страница 14: ...ng 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 Capacitance Function Press the SELECT button momentaril...

Страница 15: ... MAX 600V CAT IV INSULATION mA Hz HzV OFF VFD AUTO 0 6 m Test Voltage SELECT RANGE ZERO HOLD H LOCK REC INSULATION R TEST HzTemp mA Hz mV 200mA INSULATION 50V 1000V A mA W V 200mA INS mA INS Temp JACK WV COM HBC FUSED 0 25A HBC FUSED MAX 0 6A 1000V CAT III MAX 600V CAT IV INSULATION SELECT 1 Earth Continuity Test Function This function measures the Resistance values of earth connection equipotenti...

Страница 16: ...ATION AUTO 0 6 05 i7 Test Voltage SELECT RANGE ZERO HOLD H LOCK 200 REC INSULATION R TEST Hz mA TEST TEST HzTemp mA mV 200mA W V HzV VFD OFF INSULATION 50V 1000V 200mA INS mA INS Temp JACK WV COM HBC FUSED 0 25A HBC FUSED MAX 0 6A 1000V CAT III MAX 600V CAT IV INSULATION TEST Press Hold Press Hold TEST W 20 ZERO mode is useful for offsetting measuring probes residue resistance reading in consecuti...

Страница 17: ...next or a function change The secondary display keeps showing the actual detected voltage readings TEST TEST TEST 21 AUTO Test Voltage SELECT RANGE ZERO HOLD H LOCK REC INSULATION R TEST mA LOCK LOCK HzV OFF VFD HzTemp mA Hz mV 200mA INSULATION 50V 1000V W V 1 200mA INS mA INS Temp JACK WV COM HBC FUSED 0 25A HBC FUSED MAX 0 6A 1000V CAT III MAX 600V CAT IV INSULATION TEST TEST 1 TEST TEST AUTO Te...

Страница 18: ...ION 50V 1000V V W 200mA INS mA INS Temp JACK WV COM HBC FUSED 0 25A HBC FUSED MAX 0 6A 1000V CAT III MAX 600V CAT IV INSULATION Press Hold flash TEST TEST TEST TEST Press Hold TEST 24 Backlighted display Press button momentarily to toggle the LCD backlight The backlight will also be turned off automatically after approximate 37 seconds to extend battery life Auto or Manual ranging Volt mA Ω functi...

Страница 19: ...ads etc and replace as necessary Double check operating procedure as described in this manual Set Beeper Off Press the RANGE button while turning the meter on to temporarily disable the Beeper feature Turn the rotary switch OFF and then back on to resume 26 Battery and Fuse replacement Loosen the screws from the access cover of the case bottom Lift the access cover Replace the batteries or fuse Re...

Страница 20: ...CO authorized dealer This warranty does not apply for damaged Ic s fuses burnt PCB s disposable batteries carrying case test leads or to any product which in KUSAM MECO s opinion has been misused altered neglected contaminated or damaged by accident or abnormal conditions of operation or handling KUSAM MECO authorized dealer shall extend this warranty on new and unused products to end user custome...

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