Kusam-meco KM 857 Bedienungsanleitung

DIGITAL

MULTIMETER

KM 857 / KM 859CF

Digital Multimeter

Digital AC & AC/DC Clampmeter

AC Clamp Adaptor

AC/DC Current Adaptor

Transistorised Electronic Analog & Digital

Insulation Resistance Testers(upto 10 KV)

Digital Sound Level Meter & Sound Level

Calibrator

Digital contact & Non-contact Type

Tachometer

Digital Non-contact (infrared) Thermometer

Thermo Hygrometer

Thermo Anemometer

Wood & Paper Moisture Meter

Distance Meter

Digital Hand Held Temperature Indicators

Digital Lux Meter

Network Cable Tester

Power Factor Regulator

Maximum Demand Controller/Digital Power

Meter

Earth Resistance Tester

Gas Analysers

Panel Meters

Battery Testers

DC Power Supply

Vehicle Tracking System

LIST OF PRODUCTS

OPERATION

MANUAL

DIGITAL MULTIMETER

KM 857

KM 859CF

we damage them or “burn them out”. If you incorrectly

TAKE MEASUREMENTS CAREFULLY AND YOU’LL

SPARE YOUR METER AND YOURSELF, SOME PAIN

TABLE OF CONTENTS

TITLE PAGE

SAFETY................................................................1

CAUTION & ELECTRICAL SYMBOL..................3

GENERAL SPECIFICATION................................4

ELECTRICAL SPECIFICATION...........................7

PRODUCT DESCRIPTION..................................13

OPERATION........................................................17

MAINTENANCE..................................................32

TEST CERTIFICATE...........................................35

LIMITED WARRANTY.........................................36

Per IEC61010-1 2nd Ed. (2001) Measurement

Category

1) SAFETY

The meter protection rating, against the users, is

double insulation per IEC61010-1 2nd Ed.,

EN61010-1 2nd Ed., UL61010-1 2nd Ed. & CAN /

CSA C22.2 No. 61010.1-0.92 to Category III 1000V

AC & DC & Category IV 600V AC & DC.

This manual contains information and warnings

that must be followed for operating the instrument

safely and maintaining the instrument in a safe

operating condition. If the instrument is used in a

manner not specified by the manufacturer, the

protection provided by the instrument may be

impaired. The meter is intended only for indoor

use.

KM857 Terminals (to COM) ratings:

V : Category III 1000V AC & DC, &

Category IV 600V AC & DC.

A/mAmA : Category III and Category IV 600V

AC and 300V DC.

KM859CF Terminals (to COM)ratings:

V/ A /mAmA : Category III 1000V AC & DC,

and Category IV 600V AC & DC.

Measurement Category IV (CAT IV) is for measure-

ments performed at the source of the low-voltage

installation. Examples are electricity meters and

measurements on primary overcurrent protection

devices and ripple control units.

Measurement Category III (CAT III) is for measure-

ments performed in the building installation.

Examples are measurements on distribution boards,

circuit-breakers, wiring, including cables, bus-bars,

junction boxes, switches, socket-outlets in the fixed

installation, and equipment for industrial use and

some other equipment, for example, stationary

motors with permanent connection to the fixed

installation.

Measurement Category II (CAT II) is for measure-

ments performed on circuits directly connected to

the low voltage installation. Examples are measure-

ments on household appliances, portable tools and

similar equipment.

To reduce the risk of fire or electric shock, do not

expose this product to rain or moisture. To avoid

electrical shock hazard, observe the proper safety

precautions when working with voltages above 60V

DC or 30 VAC rms. These voltage levels pose a

potential shock hazard to the user.

TERMS IN THIS MANUAL

WARNING identifies conditions and actions that

could result in serious injury or even death to the user.

CAUTION identifies conditions and actions that

could cause damage or malfunction in the instrument.

WARNING

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 during measurement.

Inspect test leads, connectors, and probes for

damaged insulation or exposed metal before using

the instrument. If any defects are found, replace

them immediately.

Do not measure any current that exceeds the

current rating of the protection fuse.

Do not attempt a current measurement to any

circuit where the open circuit voltage is above the

protection fuse voltage rating.

Suspected open circuit voltage should be checked

with voltage functions.

Never attempt a voltage measurement with the test

lead inserted into the mA/mA or A input jack.

Only replace the blown fuse with the proper rating

as specified in this manual.

Disconnect the test leads from the test points

before changing functions. Always set the

instrument to the hightest range and work

downward for an unknown value when using

manual ranging mode.

CAUTION

2) INTERNATIONAL ELECTRICAL SYMBOLS

Caution ! Refer to the explanation in this Manual

Caution ! Risk of electric shock

Earth (Ground)

Double Insulation or Reinforced insulation

Fuse

AC--Alternating Current

DC--Direct Current

CENELEC Directives

The instruments conform to CENELEC

Low-voltage directive 2006/95/EC and

Electromagnetic compatibility directive

2004/108/EC

Display: 4-4/5 digits 50,000 counts. Selectable

stable mode 5-4/5 digits 500,000counts

for DC Voltage, & 6 digits 999,999 counts

for Hz

Polarity : Automatic

Update Rate:

4-4/5 digits fast mode : 5 per second nominal;

5-4/5 digits stable mode : 1.25 per second nominal;

42 Segments Bar graph : 60 per second max

Operating Temperature : 0 C to 45 C

Relative Humidity : Max. relative humidity 80% for

temperature up to 31 C

decreasing linearly to 50%

relative humidity at 45 C

Pollution degree : 2

o o

Storage Temperature : -20 C to 60 C, < 80%R.H.

(with battery removed)

Altitude : Operating below 2000m

Temperature Coefficient : nominal 0.1 x

(specified accuracy)/

o o o o o

C@(0 C -- 18 C or 28 C -- 40 C),

or otherwise specified.

Sensing : AC, AC + DC True RMS

Safety : Double insulation per IEC61010-1 2nd Ed.,

EN61010-1 2nd Ed., UL61010-1 2nd Ed. & CAN/

CSA C22.2 No. 61010.1-0.92 to Category III 1000V

AC & DC and Category IV 600V AC & DC.

3) GENERAL SPECIFICATIONS

KM857 Terminals (to COM) ratings:

V : Category III 1000V AC & DC, &

Category IV 600V AC & DC.

A/mAmA : Category III and Category IV 600V

AC and 300V DC.

KM859CF Terminals (to COM)ratings:

V/ A /mAmA : Category III 1000V AC & DC,

and Category IV 600V AC & DC.

Overload Protections :

KM 857 :

mA & mA : 1A/600V, IR 10kA or better,

F Fuse

A : 10A/600V, IR 100kA or better,

F Fuse

V : 1050Vrms, 1450V peak

mV, W& Others : 600V DC & V AC rms

KM 859CF :

mA & mA : 0.44A/1000V,IR 10kA or better,

F Fuse

A : 11A/1000V, IR 20kA or better,

F Fuse

V, mV, W& Others : 1050Vrms, 1450V peak

Transient Protection : 8kV (1.2/50mS surge)

E.M.C.: Meets EN61326-1:2006 (EN55022,

EN61000-3-2, EN61000-3-3, EN61000-4-2,

EN61000-4-3, EN61000-4-4, EN61000-4-5,

EN61000-4-6, EN61000-4-8,EN61000-4-11)

In an RF field of 3V/m:

Capacitance function is not specified

Other function ranges :

Total Accuracy =Specified Accuracy+100Digits

Performance above 3V/m is not specified.

Power Supply : Single 9V battery.

Power Consumption : 6mA typical

Low Battery : Below approx. 7V

APO Timing : Idle for 17 minutes

APO Consumption : 55mA typical for (KM 857)

30mA typical for (KM859CF)

Dimension : 186(L) x 87(W) x 35.5(H)mm

198(L)x97(W)x55(H)mm with holster

Weight : 390gm; 500gm with holster.

Special Features : Record MAX, MIN, MAX-MIN

readings. Crest (instantaneous Peak hold) MAX,

MIN, MAX-MIN readings. Relative zero mode.

500,000 counts high resolution stable reading mode.

Backlighted display. dBm readings. T1-T2

differential temperature readings (KM 859CF only).

%4-20mA loop current readings. High noise

rejection filtered Line Level Frequency mode. Data

Hold. Audible & visible input warning.

Optional Accessories : BRUA-85Xa PC interface

Kit (BC-85Xa Rs232 optical adapter cable + BS85X

software CD + BUA-2303 USB-to-serial adaptor),

Bkb32 banana pins to K-type socket plug adapter.

Accessories : Test leads(pair), Holster, Battery

installed, user Manual, Bkp60 banana plug K-type

Thermocouple x 1(KM 859CF).

AC & AC+DC VOLTAGE

Range KM859CF KM857

Accuracy*

20Hz -- 45Hz

500.00mV,

5.0000V, 1.5% + 60d

50.000V Unspec'd

500.00V, Unspec'd

1000.0V

500.00mV 0.3% + 20d

5.0000V, 0.8% + 20d

50.000V 0.8%+60d

500.00V, 0.4% + 40d

1000.0V

45Hz --300Hz

4) ELECTRICAL SPECIFICATIONS

Accuracy is ± (% reading digits + number of digits)

o o

or otherwise specified, at 23 C ± 5 C & less than

75% relative humidity.

True RMS voltage & current accuracies are

specified from 5 % to 100 % of range or otherwise

specified. Maximum Crest Factor < 5:1 at full scale

& < 10:1 at half scale, and with frequence

components within the specified frequency

bandwidth for non-sinusoidal waveforms.

500.00mV 0.3% + 10d 0.8%+40d

5.0000V,

50.000V 0.4% + 40d 2.0%+60d

500.00V

1000.0V

0.8% + 40d 1.0%+40d

(300Hz--1kHz)

300Hz--5kHz 300Hz--1kHz

**From 10% to 15% of range:

accuracy % of reading (or in dB) + 100d

CMRR: >80dB @ DC to 60Hz, Rs=1kW

Input Impedance : 10MW, 30pF nominal

(80pF nominal for 500mV range)

Residual reading less than 50 digits with test leads

shorted.

*From 5% to 10% of range:

accuracy % of reading (or in dB) + 80d

**From 5% to 10% of range:

accuracy % of reading (or in dB) + 180d

500.00mV 0.5%+20d 1dB**

5.0000V, 0.8%+20d 2dB**

50.000V

500.00V 0.5%+20d 3dB**

1000.0V Unspec'd Unspec'd

20kHz--100kHz

500.00mV 2.5%+40d

5.0000V, 4.0%+40d**

50.000V

Unspec'd

500.00V Unspec'd

1000.0V

5kHz--20kHz 1kHz--20kHz

dBm

At 600 , -11.76dBm to 54.25dBm,

Accuracy : ± 0.25dB + 2d @40Hz -- 20kHz)

Input Impedance : 10MW, 30pF nominal

Selectable reference impedance of 4,8, 16,32, 50,

75, 93, 110, 125, 135, 150, 200, 250, 300, 500,600,

800, 900, 1000, 1200W.

RESISTANCE

Open Circuit Voltage : < 1.3VDC

(<3VDC for 500Wrange)

Range KM859CF KM857

Accuracy*

500.00W0.07%+10d

5.0000kW0.1%+6d

50.000kW0.07%+2d

500.00kW

5.0000MW0.2%+6d 0.4% +6d

50.000MW2.0%+6d 2.0%+6d

DC VOLTAGE

Range KM859CF KM857

Accuracy*

500.00mV, 0.02%+2d 0.03%+2d

5.0000V, 50.000V

500.00V 0.04%+2d 0.05%+2d

1000.0V 0.05%+2d 0.1% +2d

NMRR : >60dB @50/60Hz

CMRR : >120dB @DC, 50/60Hz, Rs=1kW

Input Impedance : 10MW, 30pF nominal

(80pF nominal for 500mV range)

Audible threshold: between 20 and 200

Response time < 100 s

AUDIBLE CONTINUITY TESTER

)))

DIODE TESTER

Range Accuracy

Test

Current

(Typical)

Open

Circuit

Voltage

5.0000V 1%+1d 0.4mA < 3.5 VDC

CAPACITANCE

Range

Accuracy*

50.00nF 0.8% + 3d

500.0nF 0.8% + 3d

5.000mF 1.5% + 3d

50.00 Fm2.5% + 3d

500.0 F**m3.5% + 5d

9999 F**m5.0% + 5d

*Accuracies with film capacitor or better

**In manual-ranging mode, measurements not

specified below 45.0mF and 450 F for 500.0 F

and 9999mF ranges respectively.

m m

T1-T2 DUAL TEMPERATURE (KM859CF only)

-50.0 C

to o

1000.0 C o

0.3%+1 C

-58.0 F

to o

1832.0 F o

0.3%+2 F

Thermocouple range & accuracy not included

Range

Accuracy

DC CURRENT

Range

Accuracy

Burden Voltage

500.00 Am0.15% + 20d 0.15mV/ Am

5000.0 Am0.1% + 20d 0.15mV/ Am

50.000mA 0.15% + 20d 3.3 mV/mA

500.00mA 0.1% + 30d 3.3 mV/mA

5.0000A 0.5% + 20d 45 mV/A

10.000A* 0.5% + 20d 45 mV/A

*10A continuous, >10A to 15A (to 20A for KM 859CF)

for 30 second max with 5 minutes cool down interval.

AC & AC+DC CURRENT

Range

KM859CF KM857

Accuracy

50Hz -- 60Hz

500.00mA 0.15mV/ Am

5000.0 A 0.15mV/ Am m

50.000mA

0.5% +50d

1.0%+40d 3.3mV/mA

500.00mA 3.3mV/mA

5.0000A 45mV/A

10.000A* 45mV/A

40Hz --1kHz

Burden

Voltage

500.00mA 0.15mV/ Am

5000.0 A 0.15mV/ Am m

50.000mA

0.7%+50d 1.0%+40d

3.3mV/mA

500.00mA 3.3mV/mA

5.0000A 45mV/A

10.000A* 45mV/A

1kHz --10kHz

500.00mA

0.15mV/ Am

5000.0 Am

2.0%+50d Unspec'd

0.15mV/ Am

50.000mA 3.3mV/mA

500.00mA

3.3mV/mA

5.0000A

10.000A*

*10A continuous, >10A to 15A

(to 20A for KM859CF)for 30 second max with 5

minutes cool down interval.

Unspec'd Unspec'd 45mV/A

500mV

50V

500V

1000V

Range

0.1% -- 99.99% 3d/kHz+2d

Accuracy

%DUTY CYCLE

Input Frequency: 5Hz -- 500 kHz, 5V Logic Family

Range

5.0000Hz--2.00000MHz 0.002%+4d

Accuracy

HZ LOGIC LEVEL FREQUENCY

Sensitivity : 2.5Vp square wave

Crest mode (Instantaneous Peak Hold)

Accuracy : Specified accuracy ±100 digits for

changes > 0.8ms in duration

DC LOOP CURRENT %4--20MA

4mA = 0% (zero)

20mA = 100% (span)

Resolution : 0.01%

Accuracy : ± 25d

~ HZ LINE LEVEL FREQUENCY

Function

Range

Sensitivity

(Sine RMS)

100mV

10V

100V

900V

10Hz ~ 200kHz

10Hz ~ 100kHz

10Hz ~ 10kHz

Accuracy : 0.02% + 4d

5) PRODUCT DESCRIPTION

Panel IIIustration

1. 5-4/5 digits 500000 counts LCD display

2. Push-buttons for special functions & features

3. Selector to turn the Power On or Off and Select

a function

4. Input jack for 10A(+) (20A for 30sec) current,

and for T2(-) function

5. Input Jack (+) for all functions EXCEPT current

(mA, mA, A) and T2 functions

6. Common (Ground reference) Input Jack(-) for

all functions EXCEPT T2 function

7. Input Jack (+) for milli-amp, micro-amp, and

T2(+) functions

RMS (Root-Mean-Square) is the term used to

describe the effective or equivalent DC value of an

AC signal. Most digital multimeters use average

sensing RMS calibrated technique to measure RMS

values of AC signals. This technique is to obtain the

average value by rectifying and filtering the AC

signal. The average value is then scaled upward

(calibrated) to read the RMS value of a sine wave.

In measuring pure sinusoidal waveforms, this

technique is fast, accurate, and cost effective.

Inmeasuring non-sinusoidal waveforms, however,

significant errors can be introduced because of

different scaling factors relating average to RMS

values.

Average sensing RMS calibrated

AC True RMS, normally refers as True RMS,

identifies a DMM function that is AC coupled, and

responds accurately only to the effective RMS AC

component value regardless of the waveforms.

However, DC component plays an important role in

the distorted non-symmetrical waveforms, and will

also be of interest sometimes. A full wave rectified

sine waveform is a good example, and the AC true

RMS function will only give the AC component

reading which is at 43.6% of the total effective

DC+AC RMS reading.

AC True RMS

DC + AC True RMS calculates both of the AC and

DC components given by the expression

2 2

DC +(AC rms) When making measurement, and

can respond accurately to the total effective RMS

value regardless of the waveform. Distorted

waveforms with the presence of DC components

and harmonics may cause:

DC+AC True RMS

AC bandwidth of a DMM is the range of

frequencies over which AC measurements can

be made within the specified accuracy. It is not

the frequency measurement function, and is the

frequency response of the AC functions. A DMM

cannot accurately measure the AC value with

frequency spectrums beyond the AC bandwidth

of the DMM. Therefore, wide AC bandwidth plays

an important role in high performance DMMs. In

reality, complex waveforms, noise and distorted

waveforms contain much higher frequency

spectrum than its fundamental.

1) Overheated transformers, generators and

motors to burn out faster than normal

2) Circuit breakers to trip prematurely.

3) Fuses to blow

4) Neutrals to overheat due to the triplen

harmonics present on the neutral

5) Bus bars and electrical panels to vibrate

AC Bandwidth

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