CAUTION
WARNING
WARNING
CAUTION
CAUTION
CAUTION
NOTE
CAUTION
User's
Manual
73201, 73202, 73203, and
73204
Digital Multimeters
IM 73201E
10th Edition Oct. 2017 (YMI)
WARNING
CAT III
CAT II
<5> Display
Input terminal
<1> Function switch
<4> AUTO.H key
<2> SELECT key (73202/03)
or ( / = key (73201)
<3> RANGE key
*(2) and (3) are not supported on the
73204 multimeter.
V
/
4/10
/
4/10
V
Black
testing lead
Red testing lead
Black
testing lead
Red testing lead
Black
testing lead
Red testing lead
Black
testing lead
Red testing lead
/
4/10
/
4/10
A
mA
µA
µA/mA/A
To avoid damage to instrument!
To avoid damage to instrument!
Do not mistake the following for a malfunction!
To avoid damage to Instrument or equipment.
Store this manual in an easily accessible
place for quick reference.
Printed in Taiwan
Indicates a hazard that may result in the loss of life or serious injury of
the user unless the described instruction is abided by.
This product is designed to be used by a person with specialized
knowledge.
When operating the instrument, be sure to observe the cautionary notes
given below to ensure correct and safe use of the instrument. If you use
the instrument in any way other than as instructed in this manual,
the instrument’s protective measures may be impaired.
This manual is an essential part of the product; keep it a safe place for
future reference.
YOKOGAWA is by no means liable for any damage resulting from use of
the instrument in contradiction to these cautionary notes.
Thank you for purchasing our Digital Multimeter.
Before using this Digital Multimeter, thoroughly read
this manual to understand how to use it properly.
Contact information of Yokogawa offices worldwide is
provided on the following sheet.
PIM 113-01Z2: Inquiries List of worldwide contacts
Indicates a hazard that may result in an injury to the user and/or physical
damage to the product or other equipment unless the described
instruction is abided by.
This symbol indicates ground (earth).
This symbol indicates a fuse.
This symbol indicates DC voltage/current.
This symbol indicates AC voltage/current.
This symbol indicates double insulation.
The following safety symbols are used on the instrument and
in this manual.
Handle with Care.
Refer to the user’s manual.
This symbol appears on dangerous locations on the instrument
which require special instruction for proper handling or use.
To avoid a short-circuit or an accident to personnel, use this
instrument within maximum input voltage and current.
When you use the test leads, attach or remove the caps according to
the measurement category.
Failure to comply with the precautions below could lead to
injury or death or damage to the instrument.
• The instrument is for domestic use (Class B) and meets the electromagnetic
compatibility requirements.
• Do not use the multimeter near noise-emitting equipment or
where there may be a sudden temperature change.
Otherwise, the instrument may produce an unstable reading or errors.
• Do not wipe the instrument using any solvent (chemicals) such as benzine or
paint thinner. Otherwise, the front panel may be damaged or discolored.
When cleaning the instrument, use a dry cloth.
• Do not leave the multimeter exposed to direct sunlight or in a hot and
humid location such as the inside of a car, for any prolonged length of time.
Measurement
category
Description
Remarks
For measurements performed at the source of the
low-voltage installation.
For measurements performed in the building
installation.
Overhead wire, cable
systems, etc.
Distribution board,
circuit breaker, etc.
For measurements performed on circuits directly
connected to the low-voltage installation.
CAT I
CAT II
CAT III
CAT IV
Appliances, portable
equipment, etc.
Circuits not connected
to a mains power source
For measurements performed on circuits not directly
connected to MAINS.
CAT I : EN 61010-1: 2001
Category of Testing leads
With caps:
1000V 10A CAT III / 600V 10A CAT IV
Without caps: 1000V 10A CAT II
Category of Main Unit (Model 732)
Measurement Category
Maximum Input Voltage
EN 61010-1: 2001
600 V
300 V
Continuity Check
Turn off the power to the circuit under test before starting measurement in order
to prevent any excessive voltage from being applied to the multimeter.
Resistance Measurement Ω
Turn off the power to the circuit under test before starting measurement in order
to prevent any excessive voltage from being applied to the multimeter.
DC Voltage Measurement
V
If the 400 mV range is selected and the testing leads are left open-circuited,
the multimeter may give a certain reading. This does not affect your measurement.
V
a) Place the function switch in the
Ω
position (73201/04)
or position (73202/03).
b) Plug the black testing lead into the
COM
input terminal
and the red testing lead into the input
terminal.
c) Connect the testing leads to the circuit under test and
then read the multimeter when it stabilizes.
d) When measurement is complete, place the function
switch in the OFF position and turn off the multimeter.
AC Voltage Measurement
V
V
a) Set the function switch from the OFF position to the
position.
b) Plug the black testing lead into the
COM
input
terminal and the red testing lead into the
input terminal.
c) Connect the testing leads to the circuit under test
and then read the multimeter when it stabilizes.
d) When measurement is complete, set the function
switch back to the OFF position and
turn off the multimeter.
a) Set the function switch from the OFF position to the
position.
b) Plug the black testing lead into the
COM
input terminal
and the red testing lead into the input
terminal.
c) Connect the testing leads to the circuit under test
and then read the multimeter when it stabilizes.
d) When measurement is complete, set the function
switch back to the OFF position and
turn off the multimeter.
•
To verify the instrument’s functionality, check that the measured value is
update after turning on the power.
If the measured value is not update, the reading will be incorrect and may
lead to possible electrical shock or personal injury.
• Before starting measurement, check to which mode the function switch
is set and make sure the testing leads are plugged into the terminals for
the desired mode of measurement.
• Temporarily remove the testing leads from the device under test before
operating the function switch.
Measuring Instructions
Symbol and Unit
Description
Lit when the batteries are low
Lit when stray capacitance is adjusted to zero
CAL
Unit for resistance measurement
Ω, kΩ, MΩ
µA, mA, A
mV, V
Unit for current measurement
Unit for voltage measurement
nF, µF
Unit for capacitance measurement
AUTO POWER OFF
AUTO
AUTO HOLD indicator
AUTO PWER OFF indicator
Auto range indicator
Manual range indicator
Lit when in continuity check
Lit when in diode test
Polarity indicator lit when the polarity is negative
Lit when in AC-mode measurement
Lit when in DC-mode measurement
5) Display View with All Elements Turned On
• The instrument is for measuring voltage, current, or resistance etc.
Do not use this instrument for other purpose.
• Do not use the instrument if there is a problem with its physical appearance.
• Do not open the case except when replacing batteries or fuse.
Only qualified YOKOGAWA personnel may remove the case and disassemble or
alter the instrument.
Do not attempt to repair/modify the instrument yourself, as doing so is extremely
dangerous.
• Do not use the instrument in an atmosphere where any flammable or explosive
gas is present.
• Use the testing leads supplied by YOKOGAWA with this instrument.
• Check the testing leads before use and do not use deteriorated or damaged ones.
Check the continuity of the testing leads.
• Do not use the instrument if there is any damage to the casing or when the casing
is removed.
• Disconnect the instrument from the circuit under test before opening the casing
to replace the batteries or for any other reason.
• Avoid using the instrument if it has been exposed to rain or moisture or
if your hands are wet.
Safety Precautions
Components
1) Function Switch
Turns off the power or selects the measurement mode.
Turns off the power
AC voltage measurement
DC voltage measurement
Resistance measurement and continuity check (73202/03)
Resistance measurement (73201/04)
Continuity check (73201/04)
Diode test
Capacitor check (73202/03)
DC/AC current measurement in micro-amperes
DC/AC current measurement milli-amperes
DC/AC current measurement in amperes
(73201/02/03)
OFF
2) SELECT key (73202/03) or key (73201)*
This function is not supported on the 73204 multimeter.
4) AUTO. H key
Set up AUTO HOLD function. (The display shows the symbol.)
A • H
To return to the normal auto-ranging mode, hold down this key for at
least one second until the display shows
AUTO
.
Allows the operator to select the measuring range manually.
(The display shows the symbol.)
R • H
This function is not supported on the 73204 multimeter.
3) RANGE key *
This key is used only to select between the DC and AC modes in the
current measurement mode.
* The 73201 multimeter comes with the key instead of
the SELECT key.
In this mode, the key selects between the DC and AC modes.
This key is enabled only if the multimeter is in one of the following
measurement modes.
In this mode, the key selects between the resistance
measurement and continuity test.
In this mode, the key adjusts the stray capacitance of
the testing leads and the multimeter itself to zero.
(The display shows the symbol.)
CAL
a) If the model is 73201 or 04, place the function switch
in the position.
If the model is 73202 or 03, place the function switch
in the position, and then press the SELECT key.
(The symbol appears on the display.)
b) Plug the black testing lead into the
COM
input terminal
and the red testing lead into the input
terminal.
c) Connect the testing leads to the circuit under check.
If the circuit is continuous (no more than approximately
50 Ω), the buzzer sounds.
d) When the test is complete, place the function switch in
the OFF position and turn off the multimeter.