Kusam-meco KM 525 Manual de usuario

MODEL - KM 525

OPERATION MANUAL

TRMS MOBILE LOGGER

DIGITAL MULTIMETER

AN ISO 9001:2015 COMPANY

Digital Panel Meters

Battery Testers

DC Power Supply

Phasing Sticks

High Voltage Detector

Calibrators

Frequency Counter

Function Generator

“KUSAM-MECO” AN ISO 9001:2015 COMPANY “KUSAM-MECO” AN ISO 9001:2015 COMPANY

TAKE MEASUREMENTS CAREFULLY AND YOU’LL SPARE

YOUR METER AND YOURSELF, SOME PAIN.

Next, connect the test leads before you apply power to the circuit. To be

safe, start by setting your meter to its highest range first.

DMM users frequently burn their meters by trying to measure current the

same way as they measure voltage, Remember, you measure voltage

across a circuit, and current through a circuit. When you use the current

input, your DMM becomes a low impedance circuit element. If you

accidentally connect this low impedance path across your circuit, you’ll

effectively short-circuit it. You can, therefore send high current through

your meter and severely damage it. Unless the meter has a fused input,

you can even get an explosion or fire.

To prevent excess current from flowing through your meter, always

disconnect the test leads from the circuit under test whenever you change

DMM functions, Set your meter to the correct function, say current and its

highest range for the setting, say 20A.

Nearly every electrical engineer has a hand held Multimeter. We

sometimes take them for granted, until we damage them or “burn them

out”. If you incorrectly connect your DMM to a circuit or have the DMM on

wrong setting, you damage the meter and possibly hurt yourself. You can

also get into trouble if you try to measure the voltage across a charged

capacitor.

Even if you correctly insert your DMM into the circuit, you can still damage

your meter. Don’t try to measure current in excess of your meter’s

capacity. Handheld DMMs usually have a maximum current rating of 10A

or 20A.

If you are measuring current in industrial environment, you can easily

exceed those ratings. The best way to avoid damage is to use a clamp

meter or to connect a clamp attachment to your DMM.

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

2. INTERNATIONAL ELECTRICAL SYMBOLS......................3

3. CENELEC DIRECTIVES....................................................3

4. SPECIFICATIONS..............................................................4

ELECTRICAL SPECIFICATIONS.......................................7

5. PRODUCT DESCRIPTION..............................................14

7. DATA LOGGING OPERATION.........................................29

8. MAINTENANCE...............................................................34

6. OPERATION.....................................................................17

9. TEST CERTIFICATE........................................................36

GENERAL SPECIFICATIONS............................................4

10. WARRANTY......................................................................37

TABLE OF CONTENTS

TITLE

PAGE

“KUSAM-MECO” AN ISO 9001:2015 COMPANY “KUSAM-MECO” AN ISO 9001:2015 COMPANY

1) SAFETY

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.

The meter protection rating, against the users, is double insulation per

IEC/UL/EN61010-1 Ed. 3.0, IEC/EN61010-2-030 Ed. 1.0,

IEC/EN61010-2-033 Ed. 1.0, IEC/UL/EN61010-031 Ed. 1.1 and

CAN/CSA-C22.2 No. 61010-1-12 Ed. 3.0 to Category IV 1000

Volts 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.

Terminals (to COM) measurement category:

V / mA A / A : Category IV 1000 Volts AC & DCm

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

Measurement Category IV (CAT IV) is for measurements

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 measurements

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 measurements performed

on circuits directly connected to the low voltage installation.

Examples are measurements 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 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 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.

WARNING

“KUSAM-MECO” AN ISO 9001:2015 COMPANY “KUSAM-MECO” AN ISO 9001:2015 COMPANY

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 A/mA or A input jack. Only m

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 highest range and

work downward for an unknown value when using manual

ranging mode.

2) CENELEC DIRECTIVES

The instruments conform to CENELEC Low-voltage directive

2006/95/EC and Electromagnetic compatibility directive

2004 /108 / EC

INTERNATIONAL ELECTRICAL SYMBOLS

DC--Direct Current

AC--Alternating Current

Double Insulation or Reinforced insulation

Earth (Ground)

!Caution ! Refer to the explanation in this Manual

Caution ! Risk of electric shock

Fuse

CAUTION

Display: 4 digits 10,000 counts Dual LCD Backlight

display 9999 counts: ACV, DCV, Hz & nS

LCD Display. 6000 counts: mV, mA, mA, A, Ohm

& Capacitance.

AutomaticPolarity :

Digital Display: 5 per second nominal;Update Rate:

41 Segments Bar-graph: 60 per second max

Below approx. 7VLow Battery:

o o

0 C to 45 COperating Temperature:

Maximum relative humidity 80% for Relative Humidity:

temperature up to 31 C decreasing linearly to

50% relative humidity at 45 C

2Pollution degree:

o o

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

(With battery removed)

Operating below 2000mAltitude:

SPECIFICATIONS :

GENERAL SPECIFICATIONS :

Data logging : 10800 Points (KM521)

87000 Points(KM525)

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Temperature Coefficient: nominal 0.15 x (specified accuracy)

o o o o o

/ C @(0 C ~ 18 C or 28 C ~ 45 C),

or otherwise specified.

AC+DC True RMSSensing:

Safety: Double insulation per IEC/UL/EN61010-1 Ed. 3.0,

IEC/ EN61010- 2-030 Ed. 1.0, IEC/EN61010-2-033

Ed. 1.0, IEC/UL/EN61010-031 Ed. 1.1 and CAN/

CSA -C22.2 No. 61010-1-12 Ed. 3.0 to

Category IV 1000 Volts AC & DC.

mTransient protection: 12kV (1.2/50 s surge)

Terminals (to COM) Measurement Category:

mV/mA/ A :Category IV 1000VAC & VDC

Overload Protections:

A & mA:0.44A/1000 VAC & DC, IR10kA, m

F fuse. A:11A/1000 VAC & DC, IR 20kA,

F fuse V:1050Vrms, 1450Vpeak

mV, , & others: 1050Vrms, 1450Vpeak W

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 + 100 digits

Performance above 3V/m is not specified

Single 9V battery.Power Supply:

5 mA typicalPower Consumption:

Idle for 30 minutesAPO Timing:

50 A typicalAPO Consumption: m

208(L) X103(W) X 64.5(H) mm with holsterDimension:

635 gm with holsterWeight:

Test lead pair; battery installed; user's manual; Accessories:

BKP60 banana plug type-K thermocouple .

USB interface kit BU-82X; Optional purchase accessories:

BKB32 banana plug to type-K

socket plug adaptor .

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ELECTRICAL SPECIFICATIONS :

True RMS voltage & current accuracies are specified from 10 %

to 100 % of range or otherwise specified. Maximum Crest Factor

< 3:1 at full scale & < 6:1 at half scale, and with frequency

components within the specified frequency bandwidth for non-

sinusoidal waveforms.

Accuracy is (% reading digits + number of digits) or otherwise

o o

specified, at 23 C 5 C & less than 75% relative humidity. ±

AC & AC+ DC VOLTAGE

FUNCTION RANGE ACCURACY

50Hz ~ 60Hz

60.00mV, 600.0mV

9.999V, 99.99V, 999.9V 0.5% + 3d

40Hz ~ 500Hz

60.00mV, 600.0mV

9.999V, 99.99V

999.9V

0.8% + 4d

1.0% + 4d

2.0% + 4d

500Hz ~ 1kHz

60.00mV, 600.0mV

9.999V, 99.99V

999.9V

2.0% + 3d

1.0% + 4d

2.0% + 4d

1kHz ~ 3kHz

60.00mV, 600.0mV

9.999V, 99.99V, 999.9V

2% + 3d

3.0% + 4d

3kHz ~ 20kHz

1) 1)

60.00mV , 600.0mV

9.999V, 99.99V

2% + 3d

3dB

999.9V Unspec’d

1)Specificied from 30% to 100% of range.

>60dB @ DC to 60Hz, Rs=1kCMRR : W

Input Impedance : 10M , 50pF nominal (80pF nominal for W

600mV range)

Residual reading less than 5 digits with test leads shorted.

AUTOCHECK (ACV)

RANGE ACCURACY

50Hz ~ 60Hz

9.999V, 99.99V, 999.9V 1.0% + 4d

Lo-Z ACV Threshold : > 3VAC (50/60Hz) nominal

Lo-Z ACV Input Impedance : Initially approx. 3.0k , 150pF W

nominal; Impedance increases

abruptly within a fraction of a

second as display voltage is

above 50V (typical). Ended up

impedances vs display voltages

typically are:

18k @ 100V 125k @ 300V W W

320k @ 600V 460k @ 1000V W W

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DC VOLTAGE

FUNCTION RANGE ACCURACY

60.00mV

9.999V, 99.99V, 999.9V

0.12% + 2d

600.0mV 0.06% + 2d

0.08% + 2d

NMRR : >60dB @ 50/60Hz

Input Impedance : 10M , 50pF nominal (80pF nominal for W

600mV range)

CMRR : >110dB @ DC, 50/60Hz, Rs=1kW

AUTOCHECK (DCV)

RANGE ACCURACY

50Hz ~ 60Hz

9.999V, 99.99V, 999.9V 0.5% + 3d

18k @100V W

Lo-Z DCV Threshold : > +1.5VDC or < -1.0VDC nominal

Lo-Z DCV Input Impedance :

Initially approx. 3.0k , 165pF nominal; Impedance increases W

abruptly within a fraction of a second as display voltage is

above 50V (typical). Ended up impedances vs display

voltages typically are:

125k @ 300VW

320k @ 600VW

500k @ 1000VW

OHMS / CONDUCTANCE

RANGE ACCURACY

600.0W, 6.000kW, 60.00kW, 600.0kW

60.00MW

0.1% + 3d

6.000MW0.4% + 3d

1.5% + 5d

99.99nS 0.8% + 10d

Open Circuit Voltage: < 1.2VDC (< 1.0VDC for 60M range)W

CAPACITANCE

RANGE 1)

ACCURACY

60.00nF, 600.0nF

6.000mF

60.00mF

600.0mF

6.000mF

25.00mF

0.8% + 3d

1.0% + 3d

2.0% + 3d

3.5% + 5d

5.0% + 5d

6.5% + 5d

1)Accuracies with film capacitor or better

2)In manual-ranging mode, measurements not specified below

50.0 F, 0.54mF and 5.4mF for 600.0 F, 6.000mF and m m

25.00mF ranges respectively.

AUTOCHECK (OHMS)

RANGE ACCURACY

600.0W, 6.000kW, 60.00kW, 600.0kW

60.00MW

0.5% + 4d

6.000MW0.8% + 3d

2.0% + 5d

Open Circuit Voltage: < 1.2VDC (< 1.0VDC for 60M range)W

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AUDIBLE CONTINUITY TESTER

Audible threshold : between 20W and 300W;

Response time < 100ms

AC & AC + DC CURRENT

RANGE ACCURACY

600.0mA, 6000mA

60.00mA

600.0mA

6.000A, 10.00A

0.6% + 3d

0.8% + 6d

1.0% + 3d

BURDEN VOLTAGE

50Hz ~ 60Hz

40Hz ~ 1kHz

0.08mV / mA

2.1mV / mA

0.02V / A

600.0mA, 6000mA

60.00mA

600.0mA

6.000A, 10.00A

0.8% + 4d

0.8% + 6d

1.0% + 4d

0.08mV / mA

2.1mV / mA

0.02V / A

BURDEN VOLTAGE

0.08mV / mA

2.1mV / mA

0.02V / A

10A continuous, > 10A to 20A for 30 second max with

5 minutes cool down interval

10A continuous, > 10A to 20A for 30 second max with

5 minutes cool down interval

DC CURRENT

RANGE ACCURACY

600.0mA, 6000mA

60.00mA

600.0mA

6.000A, 10.00A

0.2% + 4d

LINE LEVEL FREQUENCY (Hz)

FUNCTION

RANGE FREQUENCY

AC 60.00mV

AC 600.0mV

AC 9.999V

AC 99.99V

AC 999.9V

AC 600.0mA

AC 6000mA

AC 60.00mA

AC 600.0mA

AC 6.000A

AC 10.00A

SENSITIVITY

(SINE RMS)

Accuracy : 0.04% + 4d

15.00 ~ 50.00kHz

15.00 ~ 10.00kHz

15.00 ~ 3.000kHz

40mV

60mV

2.5V

25V

100V

45mA

600mA

40mA

60mA

TEMPERATURE

RANGE ACCURACY

Type-K thermocouple range & accuracy not included

o o

-50 C to 1000 C

o o

-58 F to 1832 F

0.3% + 2 C

0.3% + 5 F

DIODE TESTER

RANGE ACCURACY

Test Current (Typically) : 0.4mA

Open Circuit Voltage : < 3.5V DC

2.000V 1.0% + 1d

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CREST MODE (INSTANTANEOUS PEAK HOLD)

Accuracy : Specified accuracy adds 250 digits for changes

> 1.0 ms in duration

RECORD MODE

Accuracy : Specified accuracy adds 10 digits for changes

> 100 ms in duration

LOGIC LEVEL FREQUENCY ( Hz) & DUTY CYCLE (D%)

@DCmV

FUNCTION

ACCURACY

Frequency 5.00Hz ~ 1.000MHz

RANGE

Duty Cycle 0.00% ~ 100.0%

0.004% + 4d

3d/kHz + 2d

1) Sensitivity : 2.5Vp (Square wave) for 3V & 5V Logic Family

2) Specified Frequency : 5Hz ~ 10kHz

NON-CONTACT EF-DETECTION

TYPICAL VOLTAGE BAR GRAPH INDICATION

20V (tolerance : 10V ~ 36V)

55V (tolerance : 23V ~ 83V)

100V (tolerance : 59V ~ 165V)

220V (tolerance : 124V ~ 330V)

440V (tolerance : > 250V)

live wires, such as distinguishing between live and ground

to the field strength

Connections, use the Red (+) test probe for direct contact

measurements.

Indication : Bar graph segments & audible beep tones proportional

Probe-Contact EF-Detection : For more precise indication of

Detection Frequency : 50/60Hz

Detection Antenna : Top end of the meter

3) PRODUCT DESCRIPTION

1) 4 digits 9999 counts dual

displays

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 function

5) Common (Ground reference)

Input Jack for all functions

6) Input Jack for all functions

EXCEPT current

( A, mA, A) functions m

7) Input Jack for milli-amp &

micro-amp current functions

The analog bar graph provides a visual indication of

measurement like a traditional analog meter needle. It is excellent

in detecting faulty contacts, identifying potentiometer clicks, and

indicating signal spikes during adjustments.

Analog bar-graph

“KUSAM-MECO” AN ISO 9001:2015 COMPANY “KUSAM-MECO” AN ISO 9001:2015 COMPANY

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 waveform, this

technique is fast, accurate and cost effective. In measuring non-

sinusoidal waveforms, however, significant errors can be

introduced because of different scaling factors relating average to

RMS values.

Average sensing RMS calibrated

True RMS

3) Fuses to blow

5) Bus bars and electrical panels to vibrate

True RMS is a term which identifies a DMM that responds

accurately to the effective RMS value regardless of the

waveforms such as: square, sawtooth, triangle, pulse trains,

spikes, as well as distorted waveforms with the presence of

harmonics. Harmonics may cause :

1) Overheated transformers, generators and motors to burn out

faster than normal.

2) Circuit breakers to trip prematurely

4) Neutrals to overheat due to the triplen harmonics present on

the neutral

Crest Factor

Crest Factor is the ratio of the Crest (instantaneous peak) value to

the True RMS value, and is commonly used to define the dynamic

range of a True RMS DMM. A pure sinusoidal waveform has a

Crest Factor of 1.4. A badly distorted sinusoidal waveform

normally has a much higher Crest Factor.

NMRR (Normal Mode Rejection Ratio)

NMRR is the DMM's ability to reject unwanted AC noise effect that

can cause inaccurate DC measurements. NMRR is typically

specified in terms of dB (decibel). This series has a NMRR

specification of >60dB at 50 and 60Hz, which means a good ability

to reject the effect of AC noise in DC measurements.

Common mode voltage is voltage present on both the COM and

VOLTAGE input terminals of a DMM, with respect to ground.

CMRR is the DMM's ability to reject common mode voltage effect

that can cause digit rolling or offset in voltage measurements. This

series has a CMRR specifications of >60dB at DC to 60Hz in ACV

function; and >120dB at DC, 50 and 60Hz in DCV function. If

neither NMRR nor CMRR specification is specified, a DMM's

performance will be uncertain.

CMRR (Common Mode Rejection Ratio)

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