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®

15

AUTO

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

–

+

–

+

–

+

0600

V

Test Voltage

SELECT

RANGE

ZERO

HOLD

H

LOCK

.

p

p

FORWARD BIAS

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

–

+

–

+

1

SELECT

OL

V

Test Voltage

SELECT

RANGE

ZERO

HOLD

H

LOCK

.

p

p

REVERSE BIAS

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

–

+

–

+

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, Capacitance Function

Press the

SELECT

button momentarily to toggle the functions. Last

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

®

16

+Hz

DCmV, ACmV functions

:

Press the

SELECT

button momentarily to toggle the subject

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

AUTO

0

6

m

V

Test Voltage

SELECT

RANGE

ZERO

HOLD

H

LOCK

.

mV

Hz

Hz

.

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

–

+

–

+

mV

Hz

0

6

W

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

–

+

–

+

mV

AUTO

m

V

W

1

SELECT

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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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