ICEL MD-6520 User manual

MANUAL DE INSTRUÇÕES DO
MULTÍMETRO DIGITAL
MODELO MD-6520
(versão em Inglês)
Leia atentamente as instruções
contidas neste manual antes de
iniciar o uso do instrumento

Copyright©2005 LT. All rights reserved. III
SAFETY INFORMATION.........................................................................................1
QUICK START............................................................................................................3
MULTI-DISPLAY MULTIMETER..........................................................................4
INTRODUCTION .........................................................................................4
GETTING START WITH YOUR METER..............................................................5
DISPLAY ILLUSTRATION..................................................................................5
ROTARY SWITCH.............................................................................................6
TERMINALS.................................................................................................7
PUSH-BUTTON OPERATIONS ..................................................................8
HANG BELT...................................................................................................11
POWER-ON OPTION ..............................................................................................12
HOW TO ENTER SETUP MODE.........................................................................12
FACTORY DEFAULT.......................................................................................12
BAUD RATE ..................................................................................................14
PARITY CHECK..............................................................................................15
DATA BIT......................................................................................................15
ECHO ............................................................................................................16
P
RINT ONLY ..................................................................................................16
PERCENTAGE (%) SCALE FOR 4-20MAOR 0-20MAMEASURING....................17
M
INIMUM FREQUENCY MEASURING ..............................................................18
BEEP FREQUENCY .........................................................................................19
TEMPERATURE UNIT .....................................................................................20
DATA HOLD/REFRESH HOLD ........................................................................21
ENVIRONMENT TEMPERATURE ......................................................................22
AUTO POWER SAVING...................................................................................23
BACKLIT DISPLAY.........................................................................................24
DECIBEL TYPES.............................................................................................25
REFERENCE IMPEDANCE FOR DBM................................................................26
RESET TO DEFAULT ......................................................................................27
BARGRAPH...............................................................................................................28
Contents

Copyright©2005 LT. All rights reserved.
IV
ALERTING................................................................................................................29
OVERLAOD ALERT FOR VOLTAGE MEASUREMENT.......................29
INPUT WARNING......................................................................................29
CHARGE TERMINAL ALERT.........................................................................30
CAPACITY CHECK OF BATTERY......................................................................31
CALCULATION FUNCTION .................................................................................32
DYNAMIC RECORDING ..........................................................................32
DATA HOLD...............................................................................................34
TRIGGER HOLD ........................................................................................34
REFRESH HOLD ........................................................................................35
RELATIVE (ZERO) ....................................................................................36
DECIBEL DISPLAY .........................................................................................37
PEAK HOLD...................................................................................................39
REMOTE COMMUNICATION..............................................................................41
MULTI-DISPLAY MULTIMETER........................................................................43
SELECTION BY HZ BUTTON...........................................................................43
SELECTION BY DUAL BUTTON .....................................................................45
SHIFT FUNCTION BY BLUE BUTTON ............................................................47
HOW TO OPERATE................................................................................................49
AC VOLTAGE MEASUREMENT .............................................................49
DC VOLTAGE MEASUREMENT .............................................................51
ΜAMEASUREMENT ......................................................................................52
MAMEASUREMENT ......................................................................................53
%SCALE OF 4-20MA.....................................................................................54
AMEASUREMENT .........................................................................................55
RESISTANCE/ CONTINUITY MEASUREMENT....................................56
CONDUCTANCE MEASUREMENT ........................................................59
DIODE CHECK...........................................................................................61
CAPACITANCE..........................................................................................64
BIPOLAR JUNCTION TRANSISTOR.......................................................66
JFET SWITCH TEST ..................................................................................68

Copyright©2005 LT. All rights reserved. V
TEMPERATURE MEASUREMENT ....................................................................70
CALIBRATING THE METER................................................................................72
INTRODUCTION .......................................................................................72
ENVIRONMENTAL CONDITION ............................................................72
WARM UP...................................................................................................72
RECOMMENDED TEST EQUIPMENT ....................................................73
SPECIFICATIONS....................................................................................................74
GENERAL SPECIFICATION.....................................................................74
ELECTRICAL SPECIFICATIONS.............................................................76
MAINTENANCE.......................................................................................................82
SERVICE.....................................................................................................82
BATTERY REPLACEMENT .....................................................................83
HOW TO CHARGE BATTERY..................................................................85
FUSE REPLACEMENT..............................................................................90
CLEANING .................................................................................................91
STANDARD ACCESSORIES ....................................................................91
OPTIONAL ACCESSORIES ......................................................................91

Copyright©2005 LT. All rights reserved.
1
SAFETY INFORMATION
This meter is a hand-held, battery-operated instrument for testing and
troubleshooting power electronic systems. If this device is damaged or
something is missing, contact the purchasing place immediately.
A WARNING identifies conditions and actions that may cause hazard(s) to the
user; a CAUTION identifies conditions and actions that may damage this
Device. Following Table-1 explain international electrical symbols used on this
meter.
Table- 1 International Electrical Symbols
AC - Alternating Current
DC - Direct Current
AC and DC - Alternating and Direct Current
Ground
Double Insulation
See Explanation In The Manual

Copyright©2005 LT. All rights reserved. 2
SAFETY INFORMATION
Warnings and Cautions
To avoid electric shock, injury, or damage to this instrument and ensure
that you use the meter safely, follow the safety guidelines listed below:
•Read this operation manual completely before using this device and follow all
safety instructions.
•This device is for indoor use, altitude up to 2,000 m.
•Avoid working alone.
•Use the device only as specified in this manual; otherwise, the protection
provided by the meter may be impaired.
•Never measure Voltage when the current measurement is selected.
•Do not use this device if it looks damaged.
•Inspect the leads for damaged insulation or exposed metal. Replace
damaged leads.
•Disconnect the power and discharge all high-voltage capacitors before
testing in the resistance, continuity, and diode function.
•Be cautions when working above 70V DC or 33VRMS and 46.7V peak, such
voltages may cause a shock hazard.
•Always keep your hands behind the protective guard of the probe as
measuring.
•Select the proper function and disconnect the test leads from test points
before changing functions.
•Always use specified battery.
•The meter is safety-certified in compliance with EN61010 (IEC 1010-1, IEC
1010-2-031) Installation Category ΙV 600V/ III 1000V Pollution Degree 2. In
order to maintain its insulation properties, please be sure to use with the
standard or compatible test probes.
•CE requirement: Under the influence of R.F field according to standard, the
supplied test leads will pick up induced noise. To have better shielding effect,
a short-twisted lead should be used.

Copyright©2005 LT. All rights reserved.
3
QUICK START
1. Turn the function switch to select combined function for “V”.
2. Press the “Dual” button momentarily to set frequency measuring on
secondary display.
3. Connect the INPUT terminals by test leads to the source to be tested.
Figure- 1 Dual display for ACV/ Hz Measurement
WARNING
Read "SAFETY INFORMATION" before using this device.

Copyright©2005 LT. All rights reserved. 4
MULTI-DISPLAY MULTIMETER
INTRODUCTION
The meter is robust for industrial fields and laboratories. Smart charger
provides you a chance to protect Earth environment because rechargeable
battery of NiMH optional. The ambient temperature can be display with main
measurement, which can help you to do monitor the electrical value and record
environment variation, simultaneously.
Main Features:
zDCV, ACV, DCA, ACA, OHM, Diode check, Audible continuity,
Temperature, Frequency, Duty cycle and Pulse Width tests
zAC true RMS measurement for both voltage and current
zSmart Charger design without battery removed
zAmbient temperature display with main measurement
zBattery capacity indication
zBrightness LED backlight
zResistance measurement up to 50M
zConductance measurement from 0.01nS (100G) ~ 50nS
zCapacitance measurement up to 100mF.
zThe % scale readout for 4-20mA or 0-20mA measurement
zdBm with selectable reference impedance
z1ms Peak hold to catch inrush voltage and current easily
zTemperature test with the selectable 0°C compensation
zK type temperature with environment compensation selection
zFrequency, Duty cycle and Pulse width measurements.
zDynamic Recording for Min/Max/Average
zData Hold with Manual or Auto Trigger and Relative modes
zDiode and Audible Continuity Test
zBi-directional optic computer interface with SCPI commands
zSafe, precision and speed closed case calibration
z50,000 count precision True-RMS digital multi-meter and designed to
meet IEC-1010 CAT. III 1000V and CAT. IV 600V standards

Copyright©2005 LT. All rights reserved.
5
GETTING START WITH YOUR METER
Display Illustration
Figure- 2 LCD Display
Primary Display
Secondary Display for Square
wave Output and other
Auto Power Saving
Sign
Low Battery
Relative
Mode
Remote control
Dynamic
Recording
Secondary display
units
Primary
Display units
Auto Range
Data Hold
(Manual Trigger)
Diode/Audible
continuity
Alternating/
Direct Current
% 0-20: 0-20mA
% 4-20:4-20 mA
Without ambient
temperature compensation
+ or - trigger
slope for % and
ms tests
Thermal type for
temperature test
Alternating/
Direct Current
Bar-graph display for input
function
Measuring
Range

Copyright©2005 LT. All rights reserved. 6
Rotary Switch
To turn this device ON and select a function you want by turning the rotary
switch.
Table- 2 Rotary Switch position
Position Function
1
2 V
3 V
4 mV
5 Resistance/ Continuity/ nS
6
7 TEMP
8 μA
9 mA
A
10 OFF
Figure- 3 Rotary Switch for selecting function
WARNING
Be sure to remove the test leads from measuring source
or target before changing rotary switch.
1 10
2
3
4 5 6 7
8
9

Copyright©2005 LT. All rights reserved.
7
TERMINALS
To avoid damaging the meter, do not exceed the input limit as below table:
Table- 3 Input limit specification
ROTARY SWITCH
FUNCTION
INPUT
TERMINAL
OVERLOAD
PROTECTION
V
V..COM 1000 V R.M.S.
V
mV
1000V for the circuits
<0.3A short circuit.

(Diode)
Capacitance
Temperature
μA μA mA COM 440mA/ 1000V 30kA
fast-acting
mA
A A COM
11A/ 1000V 30kA
fast-acting
Figure- 4 Terminals
WARNING
To avoid damaging this device, do not exceed the input
limit.

Copyright©2005 LT. All rights reserved. 8
PUSH-BUTTON OPERATIONS
The operation of push-button is shown as below. When push the button,
a related symbol will be lit, and the beeper will sound. Turning the
rotary switch to another position will reset current operation of push
buttons.
Figure- 5 Pushbuttons
BLUE: To shift
measuring
function.
RANGE: Change
measuring range.
AUTO: Press and hold
for more than 1 sec. to
set Auto-range
DUAL:
Select
different
combination
displays
START:
Re-start
peak or
recording
mode.
: Press and hold for
more than 1 sec. to
see battery capacity
:Press to toggle
backlit ON/OFF
Hz: Select Hz, %
and Pulse width
tests on Primary
display. Press and
hold for more than
1 sec. to quit.
HOLD: Freeze
existing measuring
value. Press again
to trigger next
measuring value
Press and hold for
more than 1sec. to
exit trigger hold.
REL: Set the value on
the display to be
subtracted.
PEAK: Press and hold
for more than 1 sec. to
toggle PEAK Hold
ON/OFF for V/mA
MAX MIN: Press and hold
for more than 1 sec to
toggle Dynamic recording
mode. Press this button
momentarily to cycle
through MAX, MIN, AVG
and present (MAX MIN
AVG) readings at
recording mode.

Copyright©2005 LT. All rights reserved.
9
1. AC/ DC (BLUE): Select Blue function
zPush this button momentarily to step through DC, AC for mV
measurement.
zPush this button momentarily to step through DC, AC and % of mA for
Current measurement.
zFor Ohm test, push this button momentarily to step through continuity
“”, nS and Auto ranging Ohm test.
zFor Duty cycle and Pulse width tests, press this button for more than 1
second to change the trigger slope + ( ) or – ( ).
zFor / TEMP measurement, press this button to select Capacitance
test, ETC ON (environment temperature compensation) and
(non-ETC) temperature test.
2. HOLD: DATA HOLD (Trigger) or Refresh Data Hold (Auto trigger)
zPress this button momentarily to hold the existing displayed digital value
and waiting for trigger. The sign of will be indicated.
zPress this button momentarily again to trigger another data hold. The sign
of TRIG will be flashed before finished or updated measurement
zPress this button for more than one second to exit trigger mode.
zTo select Refresh Hold by setup mode. The reading can be updated
automatically when the reading is changed, and the beeper sounds a tone
to remind user, simultaneously.
3. HOLD (MAX •MIN): Dynamic Recording
zRecord maximum, minimum, and calculates true average.
zPress this button for more than 1 second to toggle recording mode on or
off at continuous mode (non data hold).
zPress this button momentarily to cycle through MAX, MIN, AVG and
present (MAX MIN AVG) readings.
zThe beeper sounds when a new maximum or minimum value is recorded.
zPress this button momentarily to cycle through Peak +, Peak – reading
after setting peak mode. The screen shows “ MAX” to indicate the
PEAK + and show “ MIN” to indicate the PEAK -.

Copyright©2005 LT. All rights reserved. 10
4. REL (ZERO): Relative function
zThe relative function shows the difference between the measured value
and the stored value.
zPress to toggle Relative (REL) ON or OFF.
zFor Voltage and current measurements, press this button for more than 1
second to toggle 1 ms peak hold ON/OFF. The display will show “
MAX” to indicate the PEAK + and show “ MIN” to indicate the
PEAK -.
5. RANGE:
zIn auto-range, press this button to select manual range and turn off the
sign of “AUTO“.
zIn manual range, press this button momentarily to step up 1 range at one
time, press this button for more than 1 second to select auto-range.
zIn auto-range, the “ AUTO “ is lit and the meter will select an appropriate
range for resolution if a reading is greater than maximum available range,
“ OL “(overload) will be displayed on the display. The meter will select a
lower range when reading is less than about 9%of full scale.
zPush this button momentarily to change measuring range and re-start the
PEAK+ and PEAK- measurements after setting the peak mode.
6. DUAL: Dual Display Combination
zPress this button momentarily to select different combination displays.
Detail combination displays, please refer to the chapter of
MULTI-DISPLAY MULTIMETER.
zPush this button momentarily to re-start a new peak or recording mode
after setting peak or recording mode.
7. Hz: Select Frequency, Duty Cycle and Pulse Width Tests
zFor, Voltage or Current test, press this button momentarily to enter
Frequency test and Voltage or Current will be indicated in secondary
display. Press this button again to step through Frequency, Duty cycle,
Pulse width test. Press this button for more than one second to come back
voltage or current measurement.
zThe combination displays by pushing “Hz” button, please refer to the
chapter of MULTI-DISPLAY MULTIMETER.
8. : BAT/ Back-lit
zPress this button for more than 1 second to see battery capacity. It will
return to normal function automatically after 3 seconds.
zPress this button momentarily to toggle backlit ON or OFF. Backlit turns off
automatically after setting period.

Copyright©2005 LT. All rights reserved.
11
Hang Belt
The hang belt provides two ways to hang up the meter as follows:
1. Hang on the meter to
a nail or hook
2. Hang on the meter to the pipe by open button,
and then fix the belt to pipe.
Follow below steps to fix the hang-belt to holster.
Step 1 Step 2 Step 3

Copyright©2005 LT. All rights reserved. 12
POWER-ON OPTION
How to enter setup mode
Press and hold SETUP (Blue) button, then turn rotary switch to any on
position form OFF. Release push button when you hear a tone, the meter will
enter setup mode then. These parameters will be remained in non-versatile
memory even the meter is turned off.
User can configure related parameters on setup mode by following
procedures:
1. Press “ (LEFT)” or “ (RIGHT)” button to select which menu item to
be set.
2. Press “ (UP) or (DOWN)” button to change the parameter.
3. Press “BLUE” button to select which digit to be adjust, the selected
digit will be flashed.
4. Push “SAVE” button momentarily to save your change.
5. Push “BLUE” button for more than one second to exit setup mode.
Factory Default
Following Table describes the outline of the setup menu item and indicates
the factory settings.

Copyright©2005 LT. All rights reserved.
13
Table- 4 Descriptions for Outline of Setup Menu Item
Menu item Factory
Setting Selectable Parameters
Baud Rate 9600 2400, 4800, 9600, 19200
Parity None Odd, even or none
Data bits 8 8 bits or 7 bits (Stop bit is always 1 bit)
ECHO OFF ON or OFF
Print OFF ON or OFF
Percentage
scale 4-20mA 4-20mA and 0-20mA for % scale readout
Frequency 0.5Hz Set minimum measuring frequency, 0.5Hz,
1Hz, 2Hz or 5Hz.
Beep 2400
The driving frequency can be set for 2400,
1200, 600 or 300 Hz. “OFF” means to disable
beep.
Temperature * n1 °C
Four combinations can be selected:
1. °C only
2. °C/ °F can be selected.
3. °F only
4. °F/ °C can be selected.
Refresh Hold OFF
OFF means Data Hold (Manual Trigger), set
100~1000 variation counts to enable refresh
hold.
Auto power
save 15 1~99 minutes, “OFF” means to disable auto
power off.
Backlit 30 1~99 seconds, “0FF” means to disable turning
off backlit automatically.
decibel dBm dBm or dBV
Ref 600ΩReference impedance for dBm display can be
set from 1~9999Ω.
EtEMP OFF
Enable (On)/ Disable (OFF) Environment
temperature (EtEMP) to be displayed with
main measurements.
Notes:
1. The temperature menu item will be selected by pushing “”
button for more than one second to enter temperature option.

Copyright©2005 LT. All rights reserved. 14
Baud Rate
The baud rate is selected for remote control. It can be set to 2400, 4800, 9600
or 19200 Hz. To select your request as follows:
Figure- 6 Baud rate setup for remote control

Copyright©2005 LT. All rights reserved.
15
Parity Check
The parity check is selected for remote control. It can be set to none, even or
odd bit. To select the parity as follows:
Figure- 7 Parity Check setup for remote control
Data Bit
The data bit is selected for remote control. It can be set to 8 or 7 bits. The stop
bit is defined to 1 bit and can’t be changed. To select the data bit as follows:
Figure- 8 Data bit setup for remote control

Copyright©2005 LT. All rights reserved. 16
Echo
With ECHO ON, the meter echoes (returns) all the characters whatever it
receives. To enable the Echo as follows:
Figure- 9 ECHO Setup
Print only
If the remote interface of the meter is under Print-only mode, the meter will print
out the measured data when the measuring cycle is completed. The meter will
auto send the newest data to a host continuously. The meter doesn’t accept any
commands from the host under Print-Only enabled. The remote indicator of the
meter will be flashed during operation as Print-only ON. To enable the print-only
as follows:
Figure- 10 Print-only Setup