Elma Instruments 6400 Manuel utilisateur

Elma 6400 LCR Meter

English 31

EAN: 5706445840359

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English User Manual

1. Safety Summary

The following safety precautions apply to both operating and maintenance

personnel and must be observed during all phases of operation, service, and

repair of this instrument.

Do Not Operate In an Explosive Atmosphere

Do not operate the instrument in the presence of flammable gases or fumes.

Operation of any electrical instrument in such an environment constitutes a

definite safety hazard.

Keep Away From Live Circuits

Instrument covers must not be removed by operating personnel. Component

replacement and internal adjustments must be made by qualified maintenance

personnel.

Do Not Substitute Parts or Modify The Instrument

Do not install substitute parts or perform any unauthorized modifications to this

instrument. Return the instrument to distributor for service and repair to ensure

that safety features are maintained.

Warnings And Cautions

Warning and Caution statements, such as the following examples, denote a

hazard and appear throughout this manual. Follow all instructions contained in

these statements.

A Warning statement calls attention to an operating procedure, practice, or

condition, which, if not followed correctly, could result in injury or death to

personnel.

A Caution statement calls attention to an operating procedure, practice, or

condition, which, if not followed correctly, could result in damage to or destruction

of part or all of the product.

2. Safety Guidelines

To ensure that you use this device safely, follow the safety guidelines listed

below:

• This meter is for indoor use, altitude up to 2,000 m.

• The warnings and precautions should be read and well

understood before the instrument is used.

• When measuring in-circuit components, first de-energize the

circuits before connecting to the test leads.

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• Discharge capacitor before testing.

• Use the meter only as specified in this manual. Otherwise, the

protection provided by the meter may be impaired.

• The power for the meter is supplied with six standard 1.5V

batteries.

Caution

Do not measure a capacitor that is not fully discharged. Connecting a charged or

partially charged capacitor to the input terminals will damage the instrument.

When measuring within a circuit, the circuit must be de-energized before

connecting the test leads.

When used in a dusty environment, the instrument should be wiped and cleaned

regularly.

Do not leave the instrument exposed to direct heat from the sun for long periods of

time.

Before removing the cover, ensure that the instrument is disconnected from any

circuit and is powered OFF.

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3. Functional Description

3-1 Introduction

The LCR meter could measure Inductance/Capacitance/Resistance with

secondary parameters including dissipation factor(D), quality factor(Q), phase

angle(θ), equivalent series/parallel resistance(ESR or Rp). The meter is fully auto

ranging operation for AC impedance & DC resistance measurement. It means the

user could measure the L/C/R components directly at AUTOLCR smart mode

without changing the function key. User could also select the target test

frequencies of 100Hz/120Hz/1kHz/10kHz/100kHz depending on DUT(device

under test) type. Components could be measured in series or parallel mode

according to the DUT impedance automatically.

3-2 Features

• Dual LCD display

• Auto LCR smart check and measurement

• Series/Parallel modes are selectable

• Ls/Lp/Cs/Cp with D/Q/θ/ESR parameters

• Support DCR mode 200.00Ω~200.0MΩ

• Five different test frequency are available: 100/120/1k/10k/100k Hz

• Test AC signal level: 0.6mVRMS typ.

• Test range: (ex. F=1kHz)

L:200.00 µH ~ 2000.0 H

C:2000.0 pF ~ 2.000 mF

R:20.000 Ω~ 200.0 MΩ

• Multi-level battery voltage detector

• Support Backlight & Buzzer sound driver

• Primary Parameters Display:

DCR:DC Resistance

Ls:Serial Inductance

Lp:Parallel Inductance

Cs:Serial Capacitance

Cp:Parallel Capacitance

Rs:Serial Resistance

Rp:Parallel Resistance

• Second Parameter Display:

θ:Phase Angle

ESR:Equivalence Serial Resistance

D:Dissipation Factor

Q:Quality Factor

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4. Front Panel Overview

4-1 Front Panel Display Descriptions

1.LCD Display

2.Mode (Auto LCR / L / C / ACR / DCR) selection button

3.Calibration mode selection button

4.Sorting mode button

5.Secondary Display mode (for dissipation factor(D), quality

factor (Q), phase angle (θ), equivalent series resistance (ESR),

equivalent parallel resistance(Rp) measurement) selection and

the modify sorting value ( ) button

6.Test Frequency selection button

7.Relative mode and the modify sorting value ( ▽) button

8.Power ON/OFF button

9.Enter modify sorting value mode button

10.APO (Auto power off) button

11.Modify sorting value ( ) button

12.Confirm and select the value user need to modify in sorting

mode

13.Parallel or Series measurement method selection and the

modify sorting value ( △) button

14. Hold Display mode button

15.Back light button

16.Input sockets (banana jack inputs) and terminals for positive,

negative, and guard (see “Guard Terminal” in “SUPPLEMENTAL

INFORMATION” section for details)

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5. Powering Instrument

Before beginning to operate the instrument, a power source is necessary for it to

turn on. Installing Battery

5-1 Installing Battery

The LCR meter use battery to provide power to the instrument so that it can be

portable. It use six standard 1.5V size batteries.

• Place the meter upside down. Open up the back-flip stand, and

locate the screw that tightens the battery compartment cover.

Use a screwdriver to unscrew and remove the cover.

• Insert six 1.5V batteries into compartment. Note the positive

(+) and negative (-) terminals as indicated inside the battery

compartment. Be sure to insert the battery with matching

polarity.

• Place the battery compartment cover piece. Place screw at the

bottom of the cover piece and tighten down with a screw driver.

• Push and hold down the button for 2 seconds to turn on

the instrument.

5-2 Low Battery Indication

The LCR meter has a battery indicator to notify the user when to replace

battery. When it displays ,the battery voltage is below normal working

voltage. In this case,accuracy of the meter will also decrease. It is recommended

that the battery be replaced as soon as possible before continuing operation.See

"Installing Battery" for instructions.

6. Operation Instructions

Push key function allowed to be active will be marked as "◆"

Keypads FUNC HOLD DqθS/P BKLIT

SORT

FREQ

REL%

AUTOLCR ◆◆◆◆

L ◆◆◆◆◆◆◆◆

C ◆◆◆◆◆◆◆◆

ACR ◆◆

◆◆◆◆◆

DCR ◆◆◆◆◆

• Power ON/OFF

When LCR power on,all of the LCD segments will be ON for 2 seconds. Then the

default initialization process will be started. The default mode is AUTOLCR smart

mode and the default test frequency is 1 kHz.When the PWR_KEY is pushed

during power-on mode,the meter will enter power-off mode.The LCD will show the

"OFF" state before the whole system enters the power off status.

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• Auto power off

In order to extend the battery life, except of using external power supply, APO

feature will be helpful. It can be enabled or disabled APO function by press the

APO button and the LCD will show whether the function is enable or not. When all

function keypads do not be pushed or impedance range switching detected within

5 minutes, the system will launch the alarm buzzer beep at three times before the

auto power-off status. During the period of alarm, the meter will be kept in

operation by pushing any function key again. If any key is not in operation further,

the system power will be off.

• Buzzer

If the function keypad available is pushed,the buzzer output beeps once.If the

function keypad not available is pushed,the buzzer beeps twice.

• Backlight

When user push the button, the backlight will be active. Push the key

again to disable the backlight. When the backlight is active to last for 60 seconds,

the backlight will be disabled automatically.

• Battery detect

The meter will detect the battery multi-level voltages periodically. The LCD

indicators of battery life will be disappeared according to the decreasing of battery

voltage.

• Primary impedance with secondary parameter test mode

When AUTO/L/C/R function selection key is pushed, 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. The default test mode is

Auto LCR mode which could check the type of impedance smartly and enter to the

L/C/R measurement mode automatically. The secondary parameter will follow the

L/C/R measurement. It means that (L + Q) , (C+D)2,(R+Q)2 are combined in one

group respectively. When Auto-L or Auto-C mode is selected, the impedance

measurement is auto ranging. The primary LCD display will show the inductance

or capacitance of DUT (device under test). The secondary LCD display will show

the quality or dissipation factor. The D/Q/θ/ESR value can also be shown by

pressing the button. When Auto-R(ACR mode) or DCR mode is selected, the

secondary parameter is omitted.

Note: 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 of DUT is less than 5pF.

Note: Auto-LCR mode only. During Auto-R mode or DCR mode, the secondary

parameter is not available.

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• Series/Parallel mode select

The LCR meter offers the option to select between parallel or series measurement

mode. Depending on which mode is selected, the method to measure the

component will be different.

Additionally, one measurement mode may provide better accuracies over the

other measurement mode depending on the type of component and the value of

the component to be tested.

For more details, refer to the “SUPPLEMENTAL INFORMATION”

section.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. If the

impedance is larger than 10kΩ, parallel mode is set and Lp/Cp/Rp is shown on the

display. If it is less than 10kΩ, series mode is set and Ls/Cs/Rs is shown on the

display. When the button is pressed, the impedance measurement will be set in

series mode or in parallel mode sequentially. The LCD indicators for

LS/LP/CS/CP/RS/RP symbols will be indicated by related LCR measurement

mode setting.

• Hold mode

The data hold function allows the user to freeze the display when pressed, holding

the measured value until data hold is turned off.

Turn On Data Hold

To use data hold, press the button once. The "HOLD" indicator will display on

the screen when data hold is active.

Turn Off Data Hold

To disable the data hold, press again.The "HOLD" indicator will disappear on

the screen, and meter will remain in normal operation mode.

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• Relative mode

Press the button reserve the current DUT readings (DCUR) on primary

display as a reference value (DREF) and the "∆" indicator will be active . The

secondary display will show the percentage of relative value REL%. The REL% =

(DCUR – DREF) / DREF * 100%. Press the button again to show the

reference value DREF on primary display and the "∆" segment will be blinking.

The percentage range is -99.9%~99.9%. When the relative value is larger than

double of reference value (DREF), the "OL%"indication will be shown on the

secondary display. Press and hold down the button for 2 seconds to exit the

relative mode.

• Calibration mode

In order to improve the accuracy of high/low impedance, it is recommended to do

OPEN/SHORT calibration mode before measurement. Press and hold down the

button for 2 seconds to enter calibration mode. The calibration procedure:

OPEN ready1→→OPEN calibration(30s)→→SHORT ready2 →

→SHORT calibration(30s) . During open or short calibration processing, the 30-

second count downwill be shown on LCD panels. If the calibration procedure is

finished, the PASS or FAIL symbol will shown on the primary display. If PASS

symbol for both OPEN and SHORT modes, the calibration data will be saved after

push CAL key again.

OPEN ready means the input sockets or terminals have nothing connected

SHORT ready means put a shorting bar or a short piece of conductive metal (i.e.

paper clip) across the "+" and "-" input sockets or terminals.

Figure 3-Open Calibration (left) and Short Calibration (right)

• Sorting mode

The sorting mode could help the user to make a quick sort for a bunch of

components. Select the primary measurement mode (L/C/R) based on the type of

components to be measured. Insert the component to be used as the "standard"

reference value. Another words, insert a known "good" component that will be

used for testing against all other components. Press button to enter to the

sorting mode.The sorting mode cannot be activated unless the meter senses a

component is connected to either the input sockets or terminals.When sorting

mode is activated,the reference value,range and the tolerance settings can be

modified.

The setting process:

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→range setting(use / )→→reference value setting (use / /

/ )→→tolerance setting(use / )→sorting mode

The tolerance range setting selection: +0.25%→+0.5%→+1% →+2%→+5%→

+10%→+20%→+80%-20%. The default tolerance is +1%.

In the sorting mode,the primary display to show PASS or FAIL status depends on

whether the impedance measured exceeds tolerance range.The current

measurement result will be shown on the secondary display. Press the button

to exit this mode.

WARNING: If the component to be measured is a capacitor, be sure that the

capacitor is fully discharged BEFORE inserting it into the input sockets or

terminals. For large capacitors, it may take longer periods of time for a full

discharge. Inserting a charged or partially charged capacitor into the meter’s input

sockets or terminals may produce an electric hazard and may also damage the

instrument, making it unusable.

• Test Frequency Select

When the button is pressed, the test frequency will be changed sequentially.

There are five different test frequencies (100Hz/120Hz/1kHz/10kHz/100kHz) can

be selected. The test frequency can affect the accuracy of the results depending

on what frequency is selected and what type and value of a component is being

measured or tested. For details on selecting the optimal test frequency for

measurement, refer to the " SUPPLEMENTAL INFORMATION " section.

7. Specifications

Notes:

• Measurement performed at the test socket.

• Measurements performed after correct open and short calibration.

• DUT and test leads must be properly shielded to guard if necessary.

• Q value is the reciprocal of DF.

• Accuracies based within 10% to 100% of full scale of range;

values outside of range should be used as reference only.

• — means parallel or series measurement mode.

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