Sanwa PC710 User manual

PC710
DIGITAL MULTIMETER
INSTRUCTION MANUAL

―3――2―
Table of Contents
[1] SAFETY PRECAUTIONS
1-1 Explanation of Warning Symbols
1-2 Warning Instructions for Safe Use
1-3 Overload Protection
[2] APPLICATIONS AND FEATURES
2-1 Applications
2-2 Features
[3] Parts Identification
3-1 Multimeter and Test Leads
3-2 Display
[4] DESCRIPTION OF FUNCTIONS
4-1 Power Switch/Function Selector
4-2 Auto Power Saving
4-3 Low Battery Indication
4-4 Measuring Function Selection
4-5 Electric Field Detection
4-6 Range Hold
4-7 Data Hold
4-8 Beeper Control
4-9 PC (Personal Computer) Interface
4-10 Test Leads Improper Connection Warning
4-11 Crest capture mode (Sampling time: 1ms)
4-12 MAX/MIN/AVG Recording Mode
4-13 Relative Measurement
4-14 Back Light
4-15 Terms
[5] Measuring procedures
5-1 Pre-operational Check
5-2 AC Voltage ( ) / Frequency (Hz) Measurement
5-3 DC/AC Voltage (V) Measurement
5-4 DC/AC Voltage ( mV ) , Logic-Level Frequency ( Hz) and
Duty Cycle ( D%) Measurement
5-5 AC Voltage ( m ) / Frequency (Hz) Measurement
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and Conductance (nS) Measurement
1
2
3
4
4
5
7
8
8
9
9
10
11
11
11
12
13
13
13
14
14
15
16
18
21
23
26
28
5-7 Temperature Measurement
5-8 Capacitance( )Measurement, Diode ( ) Test
5-9 DC/AC Current (A), AC Current (m ,μ, )/ Frequency
(Hz) Measurement
5-10 Measurements with Separately Available Accessories
[6] MAINTENANCE
6-1 Simple Examination
6-2 Calibration
6-3 Battery and Fuse Replacement
6-4 Storage
[7] AFTER-SALE SERVICE
7-1 Warranty and Provision
7-2 Repair
7-3 SANWA web site
[8] SPECIFICATIONS
8-1 General Specifications
8-2 Measuring Range and Accuracy

31
33
37
43
47
47
48
49
50
50
51
52
54

―2――1―
[1] SAFETY PRECAUTIONS
*Before use, read the following safety precautions.
This instruction manual explains how to use your digital multimeter
PC710. Before using, read through this manual to reduce the risk
of fire , electric shock, and/or injury. And save it together with the
product so that you can refer to the manual as necessary.
Use the instrument only as specified in this manual or the protection
provided by the instrument may be impaired.
The instructions given under the headings of " WARNING" and
must be followed to prevent accidental burn andelectric shock.
1-1 Explanation of Warning Symbols
The meanings of the symbols used in this manual and attached to
the product are as follows.
:Extremely-important instructions for safe use
・
WARNING identifies conditions and actions that could result in
accidental burn and electric shock.
・
CAUTION identifies conditions and actions that could cause
damage the instrument.
:Do not touch! Possible high voltage.
:Ground :Diode Hz:Frequency
:Fuse :Beep :Logic-Level Frequency
:Direct Current(DC) :Capacitor :Duty Cycle
:Alternate Current (AC) : Nano-Siemens (Conductance)
:Resistance :Temperature :Backlight
EF:Electric Field ：Double Insulation or Reinforced
1-2 Warning Instructions for Safe Use
1. Do not use the instrument if the meter or test leads look damaged.
2. Be sure to use the specified fuse.
Neither use unspecified fuse nor short-circuit the fuse holder.
3. Do not apply higher voltage or current than the max. ratings by each
function. (See 1-3)
4. Use caution when working with voltages above 33 V ac rms, 46.7 V ac
peak, or 70 V dc. These voltages pose a shock hazard.
5. Do not use the meter to measure lines that may have inductive voltage
or surge voltage (e.g. motors) because the input voltage may exceed the
maximum rated voltage.
6. Never operate the meter with the case or battery lid removed.
7. Remove test leads from the meter before opening the meter case for
replacing the battery or fuse.
8. Never attempt to repair or modify the instrument, except for battery and fuse
replacement.
9. Do not use any unspecified type of test leads.
10. Keep your fingers behind the finger guards of the test leads while
measurement.
11. Connect the common test lead (Black) before you connect the live test lead
(Red). Disconnect the live test lead first.
12. Make sure the function, range, and measuring terminals are properly set.
13. Do not switch the function, range, or the plugs to another while
measurement.
14. Do not operate the meter when it is wet or with wet hands.
WARNING
Incorrect measurement may be performed in a ferromagnetic or
intense electric field near transformers, high-current circuits, and
radio equipments.
CAUTION

―4――3―
[2]APPLICATIONS AND FEATURES
2-1 Applications
This instrument is a portable digital multimeter designed to
measure light electric circuits. The instrument offers not only
measurements for small communication equipments, home
electric appliances, output from a wall socket, and many batteries,
also circuit analyses with additional functions.
2-2 Features
 Compliant with IEC61010-1 CAT. Ⅲ600V, CAT. Ⅱ1000V, and safe
design using fuses with large number of breaking capacity.
 9999 count display (ACV, DCV, Hz, nS)
 Fast response display
(Numeric parts: 5 times/Sec. Bar graph part: 60 times/Sec.)
 Dual Display shows "Voltage or Current and its Frequency", and
"AC components and DC components of Voltage or Current"
 True RMS detection for alternate current (AC) (True RMS)
 Maximum DC/AC voltage measurement resolution: 0.01 mV
 Frequency (Sensitivity selectable),
Wide capacitance range (0.01nF to 25.00mF)
 EF(Electric Field) Detection to indicate signal strength of electric
field which surrounds current-carrying conductors.
 Automatically range selectable Crest Capture Mode
Sampling time: Approx. 1ms
 MAX/MIN/AVG recording mode with auto ranging
(Sampling rate: 20times/Sec.)
 Relative mode with auto ranging
 Back light to allow for easy visibility in low-lit area
 Temperature measurement
(K-type thermocouple: –50 ℃to 1000 ℃)
 PCLink7 (separately available software) allows you to download
logged data into your PC with USB optical communication unit
(KB-USB7)
1-3 Overload Protection
Function Measuring
Terminal Max. Rated Input Overload Protection
「 」,「 」
and
COM
1000V dc/ac 1050V rms, 1450V peak
「 」,「 」 10V dc/ac
600Vrms
「 」,「 」 Do not apply
any voltage or
current.
「 」 50mV dc
「 」,「 」 m AμA
and
COM
600mA dc/ac
Do not apply
any voltage.
0.63A/500V Fuse
Breaking capacity: 50kA
「 」 and
COM
10A dc/ac
Do not apply
any voltage.
12.5A/500V Fuse
Breaking capacity: 20kA

LCD display
Range hold button
Select button
(Back light button)
Crest capture button
Relative button
MAX/MIN/AVG
recording button
Data hold button
(EF function)
Power/
Function selector
Measuring terminal
for A
Measuring terminal
for mAμA
Common terminal Measuring
terminal
Light shielding magnet cap
Optical
communication
unit connector
Stand
Battery door
Holster
Finger guards
Plugs Test probe (red)
Test probe (black)
Test leads TL-23a

Detachable test pin covers
Test pins
⇒
↑
↓
Lightshieldingmagnetcap
Magnetically attractable
material wall (e.g. steel)
DMM body
Attach the light shielding magnet cap
with side touched to the wall.
―6――5―
[3] Parts Identification
3-1 Multimeter and Test Leads
With the detachable test pin covers: CAT. III 600V
Without the detachable test pin covers: CAT. II 1000V
How to detach the light shielding magnet cap
Turn the light shielding magnet cap counterclockwise to detach.
An application of the light shielding magnet cap
Note:
Keep the light shielding magnet cap away from cellular phones,
analog watches, floppy disks, magnetic cards, magnetic tapes, and
magnetic tickets. Otherwise, the memorized information may be lost.

①
②
③
④
⑤⑥
⑦
⑧
⑨
⑩
⑪
⑫
⑬
⑭⑮
⑯
⑰
⑩⑪
①Main display
②Sub display
③Analog bar graph
④Relative mode indicator
⑤Auto range mode indicator
⑥Data hold indicator
⑦Recording mode indicator
⑧Crest capture mode indicator
⑨Max/Min/Avg updating indicator
⑩DC measurement indicator
⑪AC measurement indicator
⑫Temperature measurement indicator
⑬Polar charactor
⑭Continuity check indicator
⑮Low battery voltage indicator
⑯Unit of readings for main display
⑰Unit of readings for sub display
―8――7―
3-2 Display [4] DESCRIPTION OF FUNCTIONS
4-1 Power Switch/Function Selector
Turn the switch to turn on/off the power and select a measuring
function. All segments of the LCD display will be turned on for 1
seconds after power-on, and then the meter will be ready to use.
Note:
The push buttons between the display and the function selector
work differently depending on how long you press. In this
manual, "press" means pressing momentary and "press and
hold for 1 sec. or more" means pressing longer.
4-2 Auto Power Saving
The Auto Power Saving mode turns the meter off automatically
after approximately 30 minutes of no activities. While the Auto
Power Saving mode, following activities set the auto power saving
back.
1)Function selector or push button operations
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check, non-zero readings in the Duty cycle/Frequency
measurement functions, any readings in the temperature
measurement function, or significant measuring readings of
above 512 counts in the other function ranges
Following activities disable the Auto Power Saving mode
automatically.
1) Crest capture mode or MAX/MIN/AVG recording mode is in use
2) Data communication to your PC is in use
4-2-1 How to get back from the Auto Power Saving
Press the SELECT, RANGE HOLD, △REL、or HOLD button, or
disconnect the object to measure and turn the power switch off and then
back on, and select a function before connecting the object.

Ungrounded (live)
conductor
More than 1 second
Non-Contact EF Probe-Contact EF
Ungrounded (live) conductor
―10――9―
4-2-2 How to disable the Auto Power Saving
Press the SELECT button while turning the meter power on.
Release the SELECT button after is turned off. (All
segments of the display turn on after power-on.) Then the meter
will be ready to use.
Turn the power switch OFF and then back on to resume.
Note:
Even in the Auto Power Saving mode, approx. 50μA will be
consumed. When in the auto power saving mode, intense
light like the direct sunlight into the optical communication unit
on the back of the DMM increases the consumption current.
Mount the attached light shielding magnet cap on the optical
comminucation unit connector when not in use. Always turn the
power switch to the OFF position when the meter is not in use
for a long time.
4-3 Low Battery Indication
Decreasing the internal battery voltage to approx. 7V due to
wearing down turns on the indicator on the LCD display.
Replace the battery with new one when the indicator turns on.
Use under "Low Battery" may cause malfunctions.
4-4 Measuring Function Selection
At each position of the function selector, press SELECT button
(⇒) to select measuring functions as follows.
* Dual display: [Main display/Sub display]
・
「 」
：[ /Hz ] ⇔[ Hz/ ]
・
「  」
：[ ] ⇔[ / ]
・
「 」
：[ m ] ⇒[ m / m ] ⇒[ ] ⇒[ D% ] ⇒[ m ] ⇒…
・
「 」
：[ m /Hz ] ⇔[ Hz/ m ]
・
「 」
：>@⇒[ ] ⇒[ nS ] ⇒>@ ⇒…
・
「Temp」
：[ C ] ⇔[ F ] ( C:℃, F: oF)
・
「 」
：[ ] ⇔[ ]
・
「 」
：[ (m) ] ⇒[ (m) / ( m) ] ⇒[ (m) /Hz] ⇒[ (m) ] ⇒…
・
「 」
：[ μ] ⇒[ μ/μ] ⇒[ μ/Hz ] ⇒[ μ] ⇒…
Note:
The last selection of each function will be saved as power up
default for repeat measurement convenience.
4-5 EF (Electric Field) Detection
At any function, press the EF button for one second or more to
toggle to EF-Detection feature. The meter displays “E.F.” when it is
ready. Signal strength is indicated as "----" on the numeric part of
the display plus variable period of intermittent beep tones.
・Non-Contact EF-Detection: An antenna is located along
the top of the meter, which detects electric field surrounds
current-carrying conductors. It is ideal for tracing live wiring
connections, locating wiring breakage and to distinguish
between live or earth connections.
・Probe-Contact EF-Detection: To perform more precise
detection of live wires, apply the red (+) test probe to the live
wire for direct contact measurement.

―12――11―
4-6 Range Hold
Press the RANGE HOLD button to select manual-ranging, and the
meter will remain in the range it was in. ( turns off.) In
the manual-ranging mode, press the button again to step through
the ranges. Select an appropriate range making sure units and
decimal point positions. To resume auto-ranging mode, press and
hold the button for 1 second or more.
Note:
Manual ranging mode is not available in the Hz functions.
4-7 Data Hold
Press HOLD button to freeze present reading for later view. (
indicator turns on.) Input fluctuation will not reflect on the indicated
value. Press the HOLD button again to disable the data hold
feature and go back to the normal measurement mode. (
indicator turns off.)
Note:
Function changes or functional operations will cancel the data
hold feature.
4-8 Beeper Control
Press the RANGE HOLD button while turning the meter power on
to disable the beeper. Release the RANGE HOLD button after
is turned off. (All segments of the display turn on right after power-
on.) Then the meter will be ready to use. Turn the power switch
OFF and then back on to resume.
Note:
The beeper for the continuity check and the plug improper
connection warning will not be disabled.
⇒
USB Optical Communication Unit
(KB-USB7)
Optical Communication Unit Connection
4-9 PC (Personal Computer) Interface
The instrument equips with an optical isolated interface port at the
meter back for data communication. KB-USB7, dedicated USB
optical communication unit (separately available), and PCLink7,
dedicated software, allow you to transfer real time readings and
internally logged data to your PC. For more information, see the
"HELP" for PCLink7 (PC linkage software).
Note:
Intense light like the direct sunlight into the optical communication
unit on the back of the DMM increases the consumption current.
Mount the attached light shielding magnet cap on the optical
comminucation unit connector when not in use.

―14――13―
4-10 Test Leads Improper Connection Warning
The meter beeps as well as displays “InEr” to warn the user
against possible damage to the meter due to test leads improper
connections to the , or measuring terminals when
other function (like voltage function) is selected. (Temperature
measurement function is an exception.)
Note:
“InEr” warning may be indicated due to weak battery even if the
test leads are connected properly.
4-11Crest capture mode (Sampling time: 1ms)
Press the CAPTURE button to activate the crest (Instantaneous
Peak-Hold) mode to capture voltage or current signal duration
which is longer than 1ms. and MAX indicators
turn on. The meter beeps when new MAX (maximum) or MIN
(minimum) reading is updated. Press the button to read the
MAX , MIN, and MAX-MIN (peak to peak) readings in sequence.
Press the button for 1 sec. or more to exit the crest mode. Auto-
ranging (up range) remains, and Auto Power Saving is disabled
automatically in this mode.
4-12 MAX/MIN/AVG Recording Mode
When this mode is activated, the reading update rate will be
increased to 20 times/sec. in the voltage measurement or
current measurement function, and the update rate in the other
function ranges will remain.
Press the REC button to activate the MAX/MIN/AVG recording
mode. , MAX, MIN, and AVG turn on. The meter beeps
when new MAX (maximum) or MIN (minimum) reading is
updated. Press the button to read the MAX , MIN, MAX-MIN
(peak to peak) and AVG readings in sequence. Press the button
for 1 sec. or more to exit the MAX/MIN/AVG recording mode.
Auto-ranging remains, and Auto Power Saving is disabled
automatically in this mode.
4-13 Relative Measurement
Press the △REL button to activate the relative measurement
mode and △indicator turns on. The relative measurement mode
offsets the meter to display relative values against a reference.
The meter displays its readings subtracting the reading at the
moment the△REL button is pressed. Press △REL button again
to exit the relative measurement mode. This feature is available
also while the MAX/MIN/AVG recording mode. This function
works only on the main display.
4-14 Back Light
Press the SELECT button for 1 sec. or more to turn the backlight
on. (Automatically turns off after approx. 30 sec.)
Press the SELECT button again for 1 sec. or more to turn the
backlight off.

Input Waveform
0 to PEAK
Vrms
Average
Value Crest Factor Form Factor
Root Mean
Square Value
Vavg
Vp/Vrms
Vrms/Vavg
Sinusoidal
wave
Square
wave
Chopping
wave
Pulse
=1.414 =1.111
Vp
Vp
Vp
1
0
0
pp
Vp
Vp
0
Vp
−
Vp
2
√
=0.707Vp
−
2Vp
π
=0.637Vp
2
√
Vp
−
2
√
2
π
2π
π
π
Vp Vp 1
π
2π
2π
−
Vp
3
√
=0.577Vp
−
Vp
2
=0.5Vp
−
2
3
√
=1.155
3
√
=1.732
2π
τ
0
Vp
−
τ
2π
・
Vp
−
τ
2π
・
Vp
−
2π
τ
−
2π
τ
Vp
―16――15―
[5] Measuring procedures
5-1 Pre-operational Check
1. Do not use the instrument if the meter or test leads look
damaged.
2. Make sure the test leads and the fuse are not broken.
WARNING
Make sure the low battery indicator is off after power-on. Replace
the battery with new one if the indicator is on.
CAUTION
Perform pre-oparational check for safety.
(Inspection using continuity check)
4-15 Terms
Analog bar graph
The analog bar graph provides a visual indication of
measurement like a traditional analog meter needle.
True RMS
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. This instrument employs the True-RMS (Root-Mean-
Square) detection.
Crest Factor
Crest Factor is the ratio of the Crest (instantaneous peak) value
divided by the True RMS value. Most common waveforms
such as sinusoidal wave and chopping wave have a relatively
low crest factor. A low duty cycle wave form like pulse string
has a high crest factor. For voltages and crest factors for
typical waveforms, see the following table. Please note that
measurement should be made under the crest factor below 3.

―18――17―
Contact us for repair.
START
Meter/Test leads damaged?
①Connect the red plug of the test lead to measuring
terminal and the black one to the COM terminal.
②Set the function selector to .
③Press the SELECT button to select the continuity check ( ).
④Short-circuit between the red and black test pins.
WXUQVRQ"
Beeper sounds?
Finished
Does not turn on.
Does not sound.
Turns on. Sounds
Looks OK
Damaged
*In the case nothing is displayed, check for the battery.
5-2
「 」(Max. rated input voltage: 1,000V dc/ac)
 AC Voltage ( )/Frequency (Hz) Simultaneous Measurement
1) What to measure
・(ACV): Sine wave voltages such as output from a wall socket.
・Hz (Frequency): Frequency on a AC circuit.
2) Measuring ranges
・: 9.999V, 99.99V, and 999.9V
・Hz: 15.00Hz to 10.00kHz (Auto ranging)
3) Measuring procedure
①Connect the red plug of the test lead to the VHz measuring
terminal and the black one to the COM terminal.
②Set the function selector to .
③Press the SELECT button to select a display style.
④Apply the test pins (Red and Black) to the object to measure.
⑤Read the display.
1. Do not apply any input signal exceeding the max. rated input
voltage.
2. Do not switch the function selector while measuring.
3. Keep your fingers behind the finger guards of the test leads
while measurement.
WARNING

/ Hz Hz /
―20――19―
Note:
Hz input sensitivity varies automatically with a selected voltage
range. 9.999V range has the highest sensitivity and the 999.9V
range has the lowest. Auto ranging measurements normally
set the most appropriate trigger level. You can also press
the RANGE HOLD button to select another trigger level (voltage
range) manually.
If the Hz reading becomes unstable, select higher voltage range
to avoid electrical noise. If the reading shows zero, select lower
voltage range.
Range Frequency measurement (Hz)
Input sensitivity (Sine wave) Frequency range
9.999V 2.5V
15.00Hz 〜10.00kHz99.99V 25V
999.9V 100V
The display style of [Hz/ ] does not show the bar graph.
As a normal condition, non-connected test leads may cause
unstable readings.

/
―22――21―
5-3
「 」(Max. rated input voltage: 1,000V dc/ac)
・DC Voltage( ) measurement
・DC Voltage( )/AC Voltage( ) simultaneous measurement
1) What to measure
・(DC Voltage): Batteries, DC circuit voltages, etc.
・/ (DC voltage component/AC voltage component)
2) Measuring ranges
・, /: 9.999V, 99.99V, 999.9V
3) Measuring procedure
①Connect the red plug of the test lead to the V measuring
terminal and the black one to the COM terminal.
②Set the function selector to .
③Press the SELECT button to select a function you want to
perform.
④Apply the test pins (Red and Black) to the object to
measure.
⑤Read the display.
1. Do not apply any input signal exceeding the max. rated input
voltage.
2. Do not switch the function selector while measuring.
3. Keep your fingers behind the finger guards of the test leads
while measurement.
WARNING
Note:
・The display style of [ / ] does not show the bar graph.

mm/ m
―24――23―
5-4
「 」(Max. rated input voltage: 10V dc/ac)
・DC voltage (m ) measurement
・DC Voltage (m )/AC Voltage(m ) simultaneous measurement
・Logic-level frequency ( ) measurement
・Duty cycle ( D%) Measurement
1. Do not apply any input signal exceeding the max. rated input
voltage.
2. Do not switch the function selector while measuring.
3. Keep your fingers behind the finger guards of the test leads while
measurement.
WARNING
1) What to measure
・m(DC voltage): DC circuit voltage lower than 600mV
・m/m (DC voltage component/AC voltage component)
・(Logic level frequency): 3V, 5V logic circuit frequency
・D%(Duty cycle): Logic level signal duty cycle (Square wave)
2) Measuring ranges
・m, m /m : 60.00mV and 600.0mV
・: Auto ranging, 5.000Hz to 1.000MHz (Square wave)
・D%: 0.00% to 100.0% (Square wave 5Hz to 10kHz)
3) Measuring procedure
①Connect the red plug of the test lead to the VHz measuring
terminal and the black one to the COM terminal.
②Set the function selector to .
③Press the SELECT button to select a function you want to
perform.
④Apply the test pins (Red and Black) to the object to measure.
⑤Read the display.

D%
―26――25―
Note:
・The display style of [m /m ], [ ], or [ D%] does not
show the bar graph.
5-5
「 」(Max. rated input voltage: 600mV dc/ac)
・AC Voltage (m )/Frequency (Hz) Simultaneous Measurement
1. Do not apply any input signal exceeding the max. rated input
voltage.
2. Do not switch the function selector while measuring.
3. Keep your fingers behind the finger guards of the test leads
while measurement.
WARNING
1) What to measure
・m(AC voltage): AC voltage lower than 600mV
・Hz(Frequency): Frequency on a AC circuit lower than 600mV
2) Measuring ranges
・m: 60.00mV and 600.0mV
・Hz: 15.00Hz to 10.00kHz (Auto ranging)
3)Measuring procedure
①Connect the red plug of the test lead to the VHz measuring
terminal and the black one to the COM terminal.
②Set the function selector to .
③Press the SELECT button to select a function you want to
perform.
④Apply the test pins (Red and Black) to the object to measure.
⑤Read the display.

Hz / mm/ Hz
―28――27―
・The display style of [Hz/m ] does not show the bar graph.
・As a normal condition, non-connected test leads may cause
unstable readings.
Note:
Range Frequency measurement (Hz)
Input sensitivity (Sine wave) Frequency range
60.00mV 40mV 15.00Hz 〜
50.00kHz
600.0mV 60mV
5-6
「 」
(Do not apply any voltage or current.)
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・Conductance (nS) Measurement
・Continuity Check ( )
1) What to measure
・5HVLVWDQFH5HVLVWRUFLUFXLWUHVLVWDQFHHWF
・(Continuity check): Wiring connections, Operation of
switches, etc.
・nS(Conductance): High-value resistance of Giga-Ohms for
leakage measurements
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RUQ6 *
2) Measuring ranges
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DQG0
・%HHSHUWKUHVKROGOHYHOEHWZHHQDQG5HVSRQVH
time: <100μs
・nS : 99.99nS (Single range)
*Open circuit voltage between the measuring terminals: <1.2V dc
9GFIRU0UDQJH
Do not apply any voltage or current to the measuring terminals.
In the case of high resistance measurement, readings may be
unstable due to external inductive influence.
CAUTION
WARNING


nS
―30――29―
3) Measuring procedure
①Connect the red plug of the test lead to measuring terminal and
the black one to the COM terminal.
②Set the function selector to .
③Press the SELECT button to select a function you want to perform.
④Apply the test pins (Red and Black) to the object to measure.
⑤Read the display.
(: A continuous beep tone indicates a complete wire.)
Note:
・[nS] function does not show the bar graph.
・To avoid external noise influence, shield the object to measure
with COM potential. Measurements with finger-touched test
pins may cause some errors being influenced by human body
conductance.

Te m p Te m p
―32――31―
5-7
「 」(Max. rated input voltage: 50mV dc)
・Temperature measurement ( ℃) or (oF ) ( For K-type
thermocouple)
1. Pay attention in order to avoid risk of burn depending on the
object temperature or measuring environment.
2. Do not apply exceeding 50mV to the measuring terminals.
WARNING
1) What to measure
℃, oF (Temperature): Temperature of liquid, solids, gas, and etc.
2) Measuring ranges
Celsius: -50℃to 1,000 ℃
Fahrenheit: -58 oF to 1832 oF
3) Measuring procedure
①Connect the provided K-type thermocouple to the Te m p
measuring terminal.
②Set the function selector to Temp.
③Press the SELECT button to select ℃or oF.
④Apply the Thermocouple to the object to measure.
⑤Read the display.
Note:
 Temperature function does not show the bar graph.
 The provided K-type thermocouple (K-250PC) is a polar device.
Connect the device to the meter properly.
 The range of K-250PC is -50 ℃to 250 ℃.
 Separately available K-type adapter (K-AD) allows you to use
other international standard mini plug thermocouples.

Note:
・Capacitance function does not show the bar graph.
―34――33―
5-8
「 」(Do not apply any voltage or current.)
・Capacitance ( ) measurement
・Diode ( ) test
5-8-1 Capacitance ( ) measurement
CAUTION
1. Discharge the capacitor before any measurement.
2. The instrument applies the current to the capacitor to measure.
Capacitors with large leakage such as chemical capacitors cannot be
measured accurately.
1) What to measure
(Capacitance): Capacitance of capacitors
2) Measuring ranges
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6.000mF, and 25.00mF
3) Measuring procedure
①Connect the red plug of the test lead to measuring
terminal and the black one to the COM terminal.
②Set the function selector to , then press the SELECT
button to select the capacitance measurement. (Unit "F" will
be indicated.)
③Apply the test pins (Red and Black) to the object to measure.
④Read the display.
1. Do not apply any voltage or current to the measuring terminals.
2. Measuring live circuit may damage the meter.
WARNING

Note:
・Open circuit voltage between the measuring terminals: <3.5V dc
・Test current: 0.4mA (typical)
・Diode test function does not show the bar graph.
Forward biased test Reversebiasedtest
―36――35―
5-8-2 Diode ( ) test
1)
What to measure
(Diode test): Judging the diode (Good or defective)
2)
Measuring procedure
①
Connect the red plug of the test lead to measuring
terminal and the black one to the COM terminal.
②
Set the function selector to , then press the SELECT
button to select the diode test.
(The sub display shows [diod].)
③
Apply the black test pin to the cathode of the diode, and the
red to the anode.
④
The display will show the forward voltage drop (forward
biased).
*
Forward biased voltage drop for a good silicon diode is
between 0.400V to 0.900V. A reading higher than that
indicates a defective diode. A zero (or close to)reading
indicates a defective diode (shorted). An OL indicates a
defective diode (open).
⑤
Apply the red test pin to the cathode of the diode, and the
black one to the anode.
*
A reading [OL] for reverse biased voltage drop indicates
the diode is good. Any other readings indicate the diode is
defective (resistive or shorted).