Kusam-meco KM 520B Bedienungsanleitung

17, Bharat Industrial Estate, T. J. Road, Sewree (W),

Mumbai-400015. INDIA

Sales Direct: 24156638 (022)2412 4540, 2418 1649 2414 9659

E-mail : [email protected], Website : www.kusamelectrical.com,

www.kusam-meco.co.in

Tel.: Fax:

* 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 &

Portable Infrared Calibrator

* Thermo Hygrometer / Anemometer

Digital Absolute pressure meter

* Wood, Paper & Grain Moisture Meter

* Distance Meter & Network Cable Tester

* Digital Hand Held Temperature Indicators

* Digital Lux Meter

* Thermal Imaging Camera

* Power Factor Regulator

* Maximum Demand Controller/Digital Power Meter

* Earth Resistance Tester

* Digital Panel Meters & DC Power Supplies

* Digital Storage / Analog Storage Oscilloscope.

* Coating Thickness Guage

* Process Calibrators & Multifunction Calibrators

* Gas Analysers & Waterproof Pen Testers

* Frequency Counter / Function Generator

* Phasing Sticks & High Voltage Detector

* Transducer & Transmitter

* Digital Milli Ohm Meter

* Solar Power Meter

* EMF/ELF Detector / RF Field Strength Meter

Digital Multimeter

Digital AC & AC/DC Clampmeter

LIST OF PRODUCTS

OPERATION

MANUAL

Multi-Function LCR

MODEL KM 520B

OPERATION

MANUAL

Thank you for purchasing the multi-function LCR

meter. Please take a few minutes to browse through

this user manual before you begin to operate the

meter to ensure that you are fully familiarized with

how best to operate the meter as accurately and

safely as possible.

Overview

This multi-function LCR meter is a portable

instrument designed with microprocessor control

and low power consumption. It can measure 6 basic

parameters: inductance L, capacitance C, AC

resistance R, DC resistance DCR, dissipation factor

D and quality factor

With battery external power supply, the meter is

ideal for field and portable applications, such as

component inspection at fixed place, and immediate

measurement by maintenance personnel.

Q. The instrument can easily communicate with PC

and realize remote control through USB interface.

Cautions

=This instrument can only be used in indoor.

=Be sure to turn off the instrument when replacing

the battery or DC power adapter.

=Although the instrument has a protection for shocks,

inputing dc voltage or current will still damage the

instrument. The capacitance requires completely

discharge before measuring.

=In order to ensure the measurement accuracy,

open / short calibration should be carried out again

after replacing the test fixtures.

=If the instrument is idle for more than 15 days

please take the batteries out.

=Use AAA * 6 batteries. The instrument can not

work properly when low battery voltage indication

appears.

=Do not using the instrument under dusty, vibration,

direct sunlight and corrosion gas. environment

Introduction

Features

=19,999/1,999 counts dual LCD display

=Basic accuracy : 0.3% with resolution of 0.01%

=Analog bar display

=Measurement frequency up to 100KHz

=Mini-USB interface

=Auto LCR smart check and measurement

=Sorting function

=Relative measurement

=Data hold,

=Back light, full angle for LCD display

=4-terminal measurement configuration

=Automatic power off

=Battery and external power supply

=Battery voltage indication.

Specifications

Parameters

Primary

Secondary

DCR : DC resistance

Ls/Cs : series inductance /

capacitance

Lp/Cp : parallel inductance /

capacitance

q: phase angle

D: dissipation factor

ESR: equivalent series

resistance

Q : quality factor

RP: equivalent parallel

resistance

Frequency 100/120/1K/10K/100KHz

Display Dual display + analog bar display

Measurement

range

100/120Hz

1KHz

10K

100KHz

100/120Hz

1KHz

10K

100KHz

100/120Hz

1KHz

10K

100KHz

200 ~ 200M

0.001 ~ 1999

0.00° ~ ± 180.0°

20mH ~ 20KH

2000mH ~ 2000H

200mH ~ 20H

20mH ~ 200mH

20nF ~ 20mF

2000pF ~ 2mF

200pF ~ 200mF

200pF ~ 20mF

200W~ 200MW

20W~ 200MW

20W~ 20MW

20W~ 2MW

DCR

D/Q

Test Level

Range mode

Equivalent

circuit

0.6 Vrms

Auto and Hold

Parallel and Series

Specifications

Calibration function

Interface

Measurement speed

Measurement terminal

Basic accuracy

Power

Auto Power off

Operating

Environment

Storage temperature

Open / Short

Mini - USB

Approx. 1.2 times/second

4-terminal

0.3%

AAA*6 battery or external

power supply

5 min (with batteries)

temperature

humidity

no condensation

0°C ~ 40 °C

£90%RH (40°C

-25°C ~ 50 °C

Impedance Accuracy Ae

The below - listed accuracies are guaranteed by the

meter with normal use under the operating

temperature of 18°C -28°C and relative humidity less

than 80%

Note :- All accuracy is guaranteed by proper ratio

resistor calibration and open/short calibration.

If D > 0.1, the accuracy should be multiplied by

Z = 1 , if D << 0.1 in capacitance mode

Z = 2pf L, if D << 0.1 in inductance mode

1+D

2pfc

Sub-display parameters accuracy :

Ae = impedanze (Z) accuracy.

Q = 1

Definition :

Rp = ESR (or Rs) x (1+ )

1) D value accuracy : De = ± Ae x (1+D)

2) ESR accuracy : Re = ± Z x Ae (W)

i.e., Z = impedance calculated by 1 or 2pf L

2pfc

3. Phase angle qaccuracy : qe = ± (180 / p)

x Ae (deg)

Note :-

D : dissipation factor

Q : quality factor

ESR : equivalent series resistance

Rp : equivalent series parallel

resistance

q: phase angle

Explanation on Front Panel

The front panel is shown as figure 1.

1) Mini USB interface :- Connect with PC, easily for

data transmission and management.

2) LCD :- Used for displaying the measuring results

and various symbols.

3) key :- Used for putting ON or OFF the operating

power for the meter.

4) Func. Key :- When Func. key is pressed, the main

test mode could be selected sequentially: Auto-LCR

mode-Auto-L mode-Auto-C mode-Auto-R mode-DCR

mode-Auto-LCR mode.

Figure 1

FUNC.

CAL.

GUARD

SORTING

DQESR

FREQ.

ENTER

PC LINK

SET UP

REL%

HOLD

SERPAL

GUARD

INPUT

RX LX CX

LCUR Lpot Hpot HCUR

Press 2 sec

8 7 6

11 10 9

14 13 12

14) key :- By pressing this key for once, the backlight

of the LCD screen will be turn ON and after 60

seconds the meter will automatically turn off the

backlight. It is also possible to turn off the backlight by

pressing this key before the 60 seconds.

5) CAL key :- Used to do OPEN/SHORT calibration.

6) SORTING key :- Press this key to enter into

sorting mode, which could help the user to make

a quick sort for a bunch of components.

7) PC LINK key :- Press this key to communicate

with PC.

8) HOLD key :- Used to maintain the measurement

data unchanging, by pressing the key again it will

resume the measurement.

9) D/Q/ESR key :- In L/C measurement mode,

press the key to select parameters of D/Q/q/ESR.

10) SETUP key :- When sorting mode is active, press

SETUP key to modify the reference value, range

and the tolerance setting sequentially.

11) SER/PAL key :- Used to select series and

parallel mode.

12) FREQ key :- Press FREQ key to select five

different test frequencies in turn : 100/120/1K/

10K/100KHz

13) REL% key :- Press REL% key to enter into

relative measurement mode. In auto LCR mode,

this key is not available.

The instrument has 4-terminal measurement

configuration, as shown in figure 2.

GUARD GUARD

INPUT

Rx Lx Cx

Grounding (shielding)

Excitation positive

terminal

Measurement positive terminal

Measurement negative terminal

Excitation negative terminal

Figure-2

Understanding Display Screen

Figure-3

CUR LPOT HPOT HCUR

15) ENTER key :- In sorting mode, press ENTER key

to confirm the data modification.

16) Measurement terminal

LCD screen is shown as in Figure 3, with its every

symbol's meaning shown as in the Table 1:

NO. MEANING NO. MEANING

Auto power off indication

Data hold

Auto mode indication

Auto LCR mode indication

Range indication

Relative Measurement mode

Main-display

Unit for main parameters

Secondary parameters

Unit for secondary parameters

Sub-display

Analog bar indication

The meter is in the data transmission mode.

battery indication (with battery supply)

Frequency indication

Tolerance range

Sorting mode indication

External power supply

Open/Short calibration mode indication

Primary parameters

Operating instruction

Power on the meter

Press key to turn ON the power. The default mode is

AUTO LCR smart mode and the default test frequency

is 1kHz. When key is pressed during power-on

mode, the instrument will enter power-off mode. The

LCD will show the "OFF" state before power off.

Function Descriptions

Press FUNC. key to select the following parameters

sequentially : AUTO LCR, L-Q, C-D, R, DCR.

1) Parameters setting

Parameter MEANING

AUTO-LCR

L-Q

Auto LCR smart mode

Inductance measurement, the parameter

on sub-display is quality factor Q

C-D Capacitance measurement, the parameter

on sub-display is dissipation factor D.

RResistance measurement

DCR DC resistance measurement mode

L/C/R measurement readings can be positive or

negative. In C-D measurement, If the main parameter

is "-", the actual component being tested is inductive;

In L - Q measurement, if the main parameter is "-", the

actual component being tested is capacitive;

Theoretically, R is positive, in some cases, R is "-",

which may be calibration error, please re-calibrate the

instrument.

2. Auto LCR smart Mode

The default test mode is Auto LCR mode which could

check the type of impedance smartly.

If I qI < 11°, the Auto - R mode is selected. The

parameter on sub - display is q.

If q> 11°, the Auto - L mode is selected. The

parameter on sub - display is Q.

If q< -11°, the Auto - C mode is selected. The

parameter on sub - display is D.

If the C < 5pF, the parameter on sub-display is parallel

resistance Rp.

Note : In order to avoid damaging the instrument,

the capacitance requires discharge before

measuring.

3. Frequency setting

Press FREQ key to select frequency value : 100/120/

1K/10K/100KHz. The LCR impedance scale ranges

are depended on the test frequency.

4. Data Hold

Press this key to hold the measurement data and

press it again to resume the measurement.

"REL" symbol appears on LCD. The secondary

display will show the percentage of relative value

REL%

The REL% = (present value - initial value) / initial

value * 100%.

Press REL% key again to show the current

readings on primary display and the "REL" symbol

will be blinking. The percentage range is from

-99.9% ~ 99.9% when the present value is larger

than double of initial value, the "OL%" indication

will be shown on the secondary display.

During relative measurement, analog bar is

always indicating the present measurement

value but not the relative value.

6. Open / Short calibration

1) Press CAL key larger than 2 seconds to start the

open / short calibration procedure.

2) In open calibration mode, the secondary display

will show "Open". There are two ways for open

state input:

a) When using square terminals, the square

and the air

(shown in figure 4);

terminals

LCUR /

LPOT /

HPOT /

CUR terminals hang in

5. Relative mode

During relative measurement the meter remembers

the current readings on primary display (called

initial value) when pressing the REL% key, and

b) When using insert

the black and red testing lines with alligator clip

into the " "," ",terminal and "

terminal respectively. Connect the mouth of clips

(shown in figure 7).

LCUR /

LPOT /

HPOT /

HCUR terminals

LCUR LPOT CUR

H ", "H

POT".

a) When using square terminals, insert the short

soket to the square terminal and make

terminals hang in the air

(shown in figure 6);

LCUR /

LPOT /

HPOT /

CUR

b) When using insert

the black and red testing lines with alligator clip into

the " "," ",terminal and "

respectively. (shown in figure 5).

HCUR terminals

POT

LCUR /

LPOT /

HPOT /

LCUR LPOT H ", "H terminal

CUR

GUARD GUARD

INPUT

Rx Lx Cx

LCUR LPOT HPOT HCUR

GUARD GUARD

INPUT

Rx Lx Cx

LCUR LPOT HPOT HCUR

Figure 4 Figure 5

3) Press CAL key and the 30-second countdown

will be shown on LCD panels. If the open

calibration is finished, the PASS or FAIL symbol

will be shown on the primary display. Press

CAL key again to save the calibration data

and enter into the short calibration mode.

4) In short calibration mode, the secondary

display will show "Srt". There are two ways for

short state input:

GUARD GUARD

LCUR LPOT HPOT HCUR

GUARD GUARD

INPUT

Rx Lx Cx

LCUR LPOT HPOT HCUR

SHORT

Figure 6 Figure 7

5) Press CAL key and the 30-second countdown

will be shown on LCD panels. If the short calibration

is finished, the PASS or FAIL symbol will be shown on

the primary display. Press CAL key again to save

the calibration data.

Note: 1) To get the better accuracy, the open / short

calibration should be done before measurement.

2) The purpose of open / short calibration is to

reduce the parasitic effect of the test fixture.

3) Open or short circuit, is selected automatically

according to the measurement terminal.

4) In short calibration, there may be FAIL situations,

which may be caused by not using the low

resistance short line or unreliable contact, please

try again after reliable short - circuit

8. Sorting mode

The sorting mode could help the user to make a

quick sort for a bunch of components. The setting

step as following:

1) Accordings to the component type, press FUNC,

key to select L, C or R measurement mode.

2) Insert the standard component into the input

therminal, Press SORTING key to enter into the

sorting mode and the "Sorting" symbol appears on

LCD. If the LCD reading is OL or less than 200

counts, the SORTING key is not available.

If the impedance is larger than 10KW, parallel mode

is set and Lp/Cp/Rp is shown on the display.

If it is less than 10KW, series mode is set and Ls/Cs

/Rs is shown on the display. When SEL/PAL key is

pressed, the impedance measurement will be set in

series mode on in parallel mode sequentially.

Note :- The actual capacitance, inductance and

resistance is not ideal component of pure reactance

and pure resistance. Usually the resistance and

reactance exist simultaneously. A practical impedance

can be simulate by the ideal resistors and ideal

reactor (inductor or capacitor) in series or parallel

form.

When any L/C/R functional mode is selected, the

default measurement in series or parallel mode is

auto selected and the AUTO segment will be shown

on LCD display. It depends on the total equivalent

impedance measured.

7. Equivalent Circuit

7) After setting the parameters, remove the

standard component and insert the component

to be measured. If the impedance measured

does not exceed tolerance range, the primary

display will show "PASS", otherwise show

"FAIL". The current measurement result will be

shown on the secondary display.

3) When sorting mode is active, press SETUP key

to modify the range, reference value and the

tolerance settings sequentially.

4) "Range" symbol is flashing when setting the

range. Press D/Q/ESR ( ) key to shift the decimal

point, unit to left and press SER/PAL ( ) key to

right. Press ENTER key to confirm and enter into

the reference value setting mode automatically. At

this time, "Range" symbol disappear.

5) When setting the reference value, press D/Q/ESR

( ) key and SER/PAL ( ) key to shift the bit to left

and right respectively. Press PCLINK ( ) key and

REL % ( ) key to make the digit +1 or -1. The

flashing bit is the current setting bit. The reference

value setting is available from 20 to 1999 counts.

Press ENTER key to confirm and enter into the

tolerance setting mode automatically.

6) When setting the tolerance, press D/Q/ESR ( )

key & SER/PAL key to select tolerance range :

± 0.25% ± 0.5% ±1% ±2% ±5% ±10%

±20% ± 80%-20%. The default tolerance is

±1%. Press ENTER key to confirm.

8) Press SORTING key again to exit the sorting mode.

Note: In AUTO LCR mode, the SORTING key is

not available.

9. PC-LINK mode

Press PCLINK key "USB" symbol appear on

LCD. Connect the instrument to PC through

USB interface, and the measured data can be

recorded, analyzed, processed and printed by

PC. Press PCLINK key again to cancel the data

transmission. Then USB symbol disappears.

Due to the power consumption in data

transmission, please exit USB mode when there

is no need to transmit data.

Operating step

1.Inductance measurement

1) Turn on the power.

2) There are two ways for inductance input:

a. Insert the inductance to be measured into the

input terminal directly (shown in figure-8);

b. Connect the alligator clips to the ends of the

inductance to be measured (shown in figure-9).

3) The default test mode is Auto LCR mode, the

inductance value will be shown on primary

display and the quality factor Q will shown on

secondary display. In Auto LCR mode, the D/Q/

ESR key, SEL / PAL key, SORTING key and

REL% key are not available

4) Press FUNC. key to select Auto-L-mode. The

primary LCD display will show the quality factor Q.

The equivalent resistance ESR/Rp, phase angle q

or dissipation factor D can also be shown by

pressing the D/Q/ESR key.

5) Press FREQ key to select frequency value: 100/

120 /1K/10K/100KHz.

6) Press SER/PAL key to select series or parallel mode.

2. Capacitance measurement

1) Turn on the power.

2) If voltage exists in the capacit or connect the two

ends of the capacitors for a short time to discharge.

3) There are two ways for capacitance input:

a. Insert the positive polarity of capacitance into the

positive terminal and its negative polarity into the

negative terminal (shown in figure 10);

b. Insert the black and red testing lines with alligator

clip into the "LCUR", "LPOT", terminals and "HCUR", "HPOT",

terminal respectively. Connect the alligator clips to

the ends of capacitance corresponding to its polarity

(shown in the figure 11).

GUARD GUARD

INPUT

Rx Lx Cx

LCUR LPOT HPOT HCUR

GUARD GUARD

INPUT

Rx Lx Cx

LCUR LPOT HPOT HCUR

Figure 8 Figure 9

4) The default test mode is Auto LCR mode, the

capacitance value will be shown on primary display

and the dissipation factor D will be show on secondary

display. In Auto LCR mode, the D/Q/ESR key, SEL/PAL

key, SORTING key and REL% key are not available.

Note :- 1) When Auto-LCR mode is active, the secondary

parameter will show the equivalent resistance

in parallel mode (Rp) to replace the D factor if

the C measured value is less than 5pF.

2) In order to avoid damaging the instrument,

the capacitance requires discharge before

measuring

GUARD GUARD

INPUT

Rx Lx Cx

LCUR LPOT HPOT HCUR

GUARD GUARD

INPUT

Rx Lx Cx

LCUR LPOT HPOT HCUR

Figure 10 Figure 11

7) Press SER/PAL key to select series or parallel mode.

6) Press FREQ key to select frequency value: 100/

120 /1K/10K/100KHz.

5) Press FUNC. key twice to select Auto-C mode.

The primary LCD display will show the capacitance

value. The secondary LCD display will show the

dissipation factor D. The quality factor Q, equivalent

resistance ESR/Rp or phase angel qcan also be

shown by pressing the D/Q/ESR key.

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