APPA 501 User manual

LIMITED
WARRANTY
YEARS
User Manual / 使用說明書 / 使用说明书
ユーザーマニュアル
Руководство пользователя
501/502
RU
EN
TC
SC
JP
Digital Multimeter
Мультиметр цифровой
萬用電表
万用电表
デジタルマルチメーター

Read First
!
!Safety Information
Understand and follow operating instructions carefully.
Use the meter only as specified in this manual;
otherwise, the protection provided by the meter may be
impaired.
Identify hazardous conditions and actions that could
cause BODILY HARM or DEATH.
• If the equipment is used in a manner not specified by
the manufacturer, the protection provided by the
equipment may be impaired.
• Always use proper terminals, switch position, and
range for measurements.
• To reduce the risk of fire or electric shock, do not
expose this product to rain or moisture.
• Verify the Meter operation by measuring a known
voltage. If in doubt, have the Meter serviced.
• Do not apply more than the rated voltage, as marked
on meter, between terminals or between any terminal
and earth ground.
•To avoid false readings that can lead to electric shock
and injury, replace battery as soon as low battery
indicator blinks.
• Do not use Meter around explosive gas or vapor.
• When using test leads or probes, keep your fingers
behind the finger guards.
• Remove test lead from Meter before opening the
battery door or Meter case.
• Use caution with voltages above 30 Vac rms, 42 Vac
peak, or 60 Vdc. These voltages pose a shock
hazard.
• Probe assemblies to be used for MAINS measure
ments shall be RATED as appropriate for MEASURE
MENT CATEGORY III or IV according to IEC
61010-031 and shall have a voltage RATING of at
least the voltage of the circuit to be measured.
• Only replace the blown fuse with the proper rating as
specified in this manual.
• Do not attempt a current measurement when the
open voltage is above the fuse protection rating.
Suspected open voltage can be checked with voltage
function.
Warning
!
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• Never attempt a voltage measurement with the test
lead inserted into the A input terminal.
• Disconnect circuit power and discharge all high-voltage
capacitors before testing resistance, continuity, diodes,
or capacitance.
Caution
!
Identify conditions and actions that could cause
DAMAGE the meter or equipment under test.
• Disconnect the test leads from the test points before
changing the position of the function rotary switch.
• Never connect a source of voltage with the function
rotary switch in resistance, diode, continuity, and
capacitance position.
• Do not expose Meter to extremes in temperature of
high humidity.
• Never set the meter in Ampere function to measure
the voltage of a power supply circuit in equipment that
could result in damage the meter and the equipment
under test.
!
Hazardous voltage
Risk of danger. Important information. See manual
DC (Direct Current)
Double insulated
Low Battery
Earth ground
AC (Alternating Current)
Conforms to EU directives
Do not discard this product or throw away.
Electrical Symbols
Fuse
CAT III
CAT IV
IEC Overvoltage Category
CAT III equipment is designed to protect against transients
in equipment in fixed equipment installations, such as
distribution panels, feeders and short branch circuits, and
lighting systems in large buildings.
CAT IV equipment is designed to protect against transients
from the primary supply level, such as an electricity meter
or an overhead or undergroundutility service.
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Front panel illustration :
1. Auto backlight sense point
2. 40,000 count dual display
3. Push buttons
4. Rotary switch
5. Input terminal for voltage, frequency, resistance,
continuity, diode, capacitance and temperature
measurements.
6. Return terminal for all measurements.
7. Input terminal for 0 to 400mA current
measurements.
8. Input terminal for 0 to 10A current measurements.
The Meter Description
Meter error. Have meter serviced.
Error Message
ProbE
FUSE
Er
Test probe alert. Displayed when the test probes are in the
A or mA terminal and the selected rotary switch position
does not correspond to the terminalbeing used.
Fuse broke. Replace fuse as soon.
1
2
3
4
5
6
7
8
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Power On Options
ENTER
A HOLD
Display the firmware version.
Display all LCD segments.
Select measurement function.
Select measurement range.
Press > 1 sec to enter auto range mode.
Enable/Disable the High Frequency Reject mode in the
AC measurements.
Enter menu function in pointer positon.
Enable the Peak-Hold mode in the AC or DC
measurements.
In this mode, press button to select Peak-Hold MAX
or MIN. Press > 1 sec to disable the Peak-Hold mode.
Select degrees Celsius or degrees Fahrenheit.
Enable/Disable the Auto-Hold mode.
Push Buttons
Cancel current menu function.
°C / °F
Enable/Disable the Hz mode in the AC measure-ments.
Function
(Yellow)
RANGE
HFR
A-HOLD
P-HOLD
ENTER
CANCEL
Hz
When turn the power on, press the function button to
execute the below options.
Power On Options
Making Basic Measurements
Warning
!
• When connecting the test leads to the DUT (Device
Under Test), connect the common test lead before
connecting the live lead. When removing the test leads,
remove the test live lead before removing the common
test lead.
The following sections describe how to take measure-
ments with the meter.
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Measuring AC and DC Voltage
This meter have true rms readings, which are accurate
for distorted sine waves and other waveforms (with no
dc offset) such as square waves, triangle waves, and
staircase waves.
The ranges of measuring voltage are 40mV, 400mV,
4V, 40V, 400V and 1000V. To select the mV range,
turn the rotary switch to mV position.
AC Voltage DC Voltage
For best accuracy when measuring the DCmV, touch
the probe tips together and read the DC offset. If
necessary, you can use the relative (Δ) mode to
automatically subtract this value.
Make dB measurement
The meter is capable of displaying voltage as a dB
value, either relative to 1 milliwatt (dBm), a reference
voltage of 1 volt (dB). A dBm measurement must use a
reference impedance (600Ω) to calculate a dB value
based on 1 milliwatt. A dB measurement uses a 1 volt
reference voltage to compare the present measure-
ment against. Define as below :
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To use dB or dBm function, turn the rotary switch to
ACV or ACmV position. Then move the blink cursor of
menu to dB or dBm position, and press the ENTER
button to enter function. Press the CANCEL button to
exit function.
Measuring Voltage in LoZ Mode
• Do not use the LoZ mode to measure voltages in
circuits that could be damaged by this mode’s low
impedance.
CAUTION
!
To eliminate ghost voltages, the meter’s LoZ mode
presents a low impedance across the leads to obtain a
more accurate measurement. The ranges of measuring
LoZ voltage are 400V and 1000V. In this mode, meter
will automatic measure input signal which is AC or DC
and determine range.
To use the LoZ mode, turn the rotary switch to LoZ
position.
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Measuring AC and DC Current
• Always use proper terminals, switch position, and
range for measurements.
• To avoid possible electric shock or personal injury,
never attempt an in-circuit current measurement where
the open circuit potential to earth is greater than
1000V.
• Only replace the blown fuse with the proper rating as
specified in this manual.
WARNING
!
• Replace the fuse as soon as the indicator (FUSE)
appears.
To measure current, you must break the circuit under
test, then place the meter in series with the circuit.
The ranges of measuring current are 40mA, 400mA,
4A and 10A. AC current is displayed as an rms value.
Insert the black lead into the COM terminal. For
currents less than 400 mA, insert the red lead into the
mA terminal. For currents above 400 mA, insert the red
lead into the A terminal.
You can press the function (yellow) button to select
current measurement function.
CAUTION
!
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Measuring Frequency
The meter measures the frequency of a voltage or
current signal by counting the number of times the
signal crosses a threshold level each second.
This function only can be operated in AC voltage and
current measurements. The ranges of measuring
frequency are 400Hz, 4kHz, 40kHz and 100kHz.
If a reading shows as 0 Hz or is unstable, the input
signal may be below or near the trigger level. The
detail of frequency trigger level refer to the electrical
specifications.
To use the frequency function, press function (yellow)
button to select measurement function.
Make High Frequency Rejection
Measurement
• Do not use the High Frequency Rejection (Low Pass
Filter) option to verify the presence of hazardous
voltages. Voltages greater than what is indicated may
be present. First, make a voltage measurement without
the filter to detect the possible presence of hazardous
voltage. Then select the filter function.
Warning
!
The High Frequency Rejection mode equip a low pass
filter in the AC measurements. The cut-off frequency
(-3dB point) of low pass filter is 800Hz.
To use the HFR mode, press the HFR button to equip
a low pass filter in the AC measurements.
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Make Peak-Hold Measurement
The Peak-Hold mode records wave peak maximum
and minimum input values. Response time of
Peak-Hold is 10us.
To use the Peak-Hold mode, press the P-HOLD button
to enable the Peak-Hold mode in the AC or DC
measurements.
In this mode, press P-HOLD button to select peak MAX
or MIN value. Press > 1 sec to disable the Peak-Hold
mode.
For square wave, use the peak-hold mode in the DC
measurements.
Make AC+DC Measurement
When input signal is ac and dc combinations:
AC over DC or DC over AC, the meter is capable of
displaying one AC+DC (rms) value combined.
Define as below :
To use the AC+DC function, turn rotary switch stop
in DCV, DCmV or A position, then press function
(yellow) button to select measurement function.
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Measuring Resistance
• To avoid possible damage to the meter or to the
equipment under test, disconnect circuit power and
discharge all high voltage capacitors before measuring
resistance.
CAUTION
!
The ranges of measuring resistance are 400Ω, 4kΩ,
40kΩ, 400kΩ, 4MΩ, 40MΩ, 400MΩ and 4GΩ.
The test leads may be add 0.1Ω to 0.2Ω of error to
resistance measurements. To test the leads, touch the
probe tips together and read the resistance of the
leads. For best accuracy, you can use the relative (Δ)
mode to automatically subtract this value.
High-resistance (>10MΩ) readings are susceptible to
electrical noise. To smooth out most noisy readings,
enter the MAX/MIN recording mode; then step to the
average (AVG) reading.
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Continuity Check
• To avoid possible damage to the meter or to the
equipment under test, disconnect circuit power and
discharge all high voltage capacitors before testing
continuity.
CAUTION
!
The continuity check features a buzzer that sounds as
long as a circuit is complete. The buzzer allows you to
quick continuity checks without watching the display.
When measuring resistance is less than threshold, the
buzzer sounds. You can setup the threshold in setup
mode. The continuity threshold is default 30Ω.
To use continuity check, turn the rotary switch to
resistance position, then press the function (yellow)
button to select measuring mode.
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Testing Diodes
• To avoid possible damage to the meter or to the
equipment under test, disconnect circuit power and
discharge all high-voltage capacitors before testing
diodes.
CAUTION
!
Use the diode test to check diodes, transistors, silicon
controlled rectifiers (SCRs), and other semiconductor
devices. This function tests a semiconductor junction
by sending a current through the junction, then
measuring the junction's voltage drop. A good silicon
junction drops between 0.5V and 0.8V.
For forward-bias readings on any semiconductor
component, place the red test lead on the component's
positive terminal and place the black lead on the
component's negative terminal. In a circuit, a good
diode should still produce a forward-bias reading of
0.5V to 0.8V.
For reverse-bias readings on any semiconductor
component, the meter still can measure. In a circuit, a
good diode should still produce a reverse-bias reading
of -0.5V to -0.8V.
The display shows “OL” if the diode is open or short.To
use diode test, turn the rotary switch to resistance
position, then press the function (yellow) button to
select measuring mode.
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Measuring Capacitance
CAUTION
!
• To avoid possible damage to the meter or to the
equipment under test, disconnect circuit power and
discharge all high-voltage capacitors before measuring
capacitance. Use the dc voltage function to confirm
that the capacitor is discharged.
The ranges of measuring capacitance are 40nF,
400nF, 4uF, 40uF, 400uF, 4mF and 40mF.
To improve the accuracy of measurements less than
1000nF, you can use the relative (Δ) mode to subtract
the residual capacitance of the leads.
To use capacitance measurement, turn the rotary
switch to resistance position, then press the function
(yellow) button to select measuring mode.
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Measuring Temperature (only 502)
The meter measures the temperature of a K-Type
thermocouple. You can press the function (yellow)
button to choose degrees Celsius (°C) or degrees
Fahrenheit (°F).
Display ranges are -200°C to +1200°C and -328°F to
+2192°F. Readings outside of these ranges show “OL”
on the display. When there is no thermocouple
connected, the display also shows “OL”.
To use temperature measurement, turn the rotary
switch to
temperature position, then press the function (yellow)
button to select measuring mode.
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Auto-Hold
When measuring, you can press the A-HOLD button to
start the Auto-Hold mode. In this mode, the meter
holds reading and shows it on the secondary display.
If the difference between new reading and hold reading
is bigger than 5d (3¾-digit mode), and new reading is
also stable, then meter automatically holds a new
reading on the secondary display.
When reading is smaller than Auto-Hold limit, or
reading is OL, the Auto-Hold mode is not working.
To exit Auto-Hold mode, press the A-HOLD button
again. If you don’t want to use the Auto-Hold mode,
you can disable it in the setup mode. When Auto-Hold
mode is disable, the hold mode is not update any new
reading.
Maximum / Minimum Record
When measuring, you can record the maximum,
minimum and average value of reading.
To use maximum / minimum record mode, move the
blink cursor of menu to MAX, MIN or AVG position, and
press the ENTER button to enter mode. In this mode,
the meter records each data to compare the maximum
and minimum value. Also, meter calculate the average
of reading.
You can move the blink cursor of menu to MAX, MIN or
AVG position, and press the ENTER button to select
result on the secondary display.
Limit
V, A, LoZ, Hz, Cap
Others
1% of range
No limit
Function
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When maximum / minimum record mode running, if you
wants to pause recording, press the A-HOLD button.
Press again to continue.
To exit maximum / minimum record mode, press the
CANCEL button.
Relative Δ
When measuring, you can use the relative (Δ) mode to
subtract the offset.
To use relative (Δ) mode, move the blink cursor of
menu to Δ position, and press the ENTER button to
enter mode. In this mode, meter records the presently
reading as reference and shows it on the secondary
display. The relative (Δ) mode subtract reference from
each reading, and shows result on the main display.
In relative (Δ) mode, the minimum range is relative (Δ)
range. For example: The ranges of measuring
resistance are 400Ω, 4kΩ, 40kΩ, 400kΩ, 4MΩ, and
40MΩ. If you use the relative (Δ) mode in 4kΩ range,
then the minimum range is the 4kΩ range. You can
use range is 4kΩ to 40MΩ, cannot change to 400Ω.
To exit relative (Δ) mode, press the CANCEL button.
Relative %
When measuring, you can use the relative (%) mode
to calculate the relative percent value. The relative
percent value is define as below:
To use relative (%) mode, move the blink cursor of
menu to % position, and press the ENTER button to
enter mode. In this mode, meter records the presently
reading as reference and shows it on the secondary
display.
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To exit relative (%) mode, press the CANCEL button.
Memory Save / Load
When measuring, you can save the reading to memory
and load it from memory. The meter can store
maximum 1000 data in memory. The recorded data
amount shows on the secondary display.
To use memory save / load mode, move the blink
cursor of menu to MEM position, and press the ENTER
button to enter mode. In this mode, you can operate
the below options:
To exit memory save / load mode, press the CANCEL
button.
You can operate the Auto-Save mode to automati-cally
save new reading. When you use the probes to measure
a new reading, the meter will automati-cally save it.
In some case, the Auto-Save mode will not work.
For example, the reading is smaller than the limit
(refer Auto-Hold), or the reading is OL. Press ENTER
button to start Auto-Save mode, press CANCEL button
to exit.
You can press the ENTER button to review data from
memory. Press UP or DOWN button to select data.
Press the CANCEL button to return.
Press ENTER button to save a new reading to memory.
Press ENTER button to review the maximum data from
memory.
Memory Options
Press ENTER button to clear all data from memory.
MAX
Press ENTER button to review the minimum data from
memory.
A-SAVE
SAVE
LOAD
CLR
MIN
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Data Logger
You can record a lot of reading to memory in a long
time, then analyze and plot graph. The meter can store
maximum 40,000[1] data in memory. The recorded
data amount shows on the secondary display.
The record rate can be set from 1 sec and 600 sec.
The error of timer is less than 3 seconds per hour.
To use data logger, move the blink cursor of menu to
LOG position, and press the ENTER button to enter
mode. In this mode, you can operate the below
options :
To exit memory save / load mode, press the CANCEL
button.
Press ENTER button to start data logger. The logger
automatically records at regular intervals. You can press
ENTER button to pause data logger, press again to
continue. To stop data logger, press CANCEL button
to return.
Press ENTER button to clear all data from memory.
You can press the ENTER button to review data from
memory. Press UP or DOWN button to select data.
Press the CANCEL button to return.
Press ENTER button to review the maximum data from
memory.
Data Logger Options
You can setup the record rate of logger.
Press UP or DOWN button to select rate.
Press the CANCEL button to return.
MAX
Press ENTER button to review the minimum data from
memory.
SAVE
RATE
LOAD
CLR
MIN
Note 1: In APPA 501, the max data is 20,000.
502
Memory Size 40000
Model 501
20000
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Auto Power Off
If you don't operate the rotary switch or buttons for a
specified time, the meter will turn off automatically to
save the power of batteries. The default APO timer is
10 minutes. In setup mode, you can change the APO
timer.
Backlight
The backlight is automatically turned on at dark
environment. The backlight mode is default auto. In
setup mode, you can set the backlight mode.
Buzzer
The meter equip a 2kHz tone buzzer. Valid button
press: Beep once. And invalid button press: Beep
twice. In setup mode, you can turn on or off the buzzer.
But the buzzer in continuity check cannot be turn off.
Display Resolution
This meter have two display resolution:
normal resolution (3¾-digit mode) and high resolution
(4¾-digit mode).
The normal resolution is set to default.
You can setup the resolution in setup mode.
Setup
To use meter setup mode, move the blink cursor of
menu to SETUP position, and press the ENTER button
to enter function. Press the UP or DOWN button to
select item; press the LEFT or RIGHT to select options.
When you complete setup, press the CANCEL button
to exit setup mode.
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