KEW 1030
INSTRUCTION MANUAL
○Read through the following safety instructions contained in this
manual before using the instrument.
#DANGER
Never make measurement on a circuit in which electrical potential to ground over
600V exists.
Do not attempt to make measurement in the presence of flammable gasses.
Otherwise, the use of the instrument may cause sparking, which can lead to an
explosion.
Never attempt to use the instrument if its surface or your hand is wet. Otherwise,
you may get electrical shock.
Never open the Bottom case and Battery cover during a measurement.
Do not exceed the maximum allowable input of any measuring range.
Never try to make measurement if any abnomal conditions, such as broken
case is noted.
The instrument should be used only in its intended applications or conditions
Otherwise, safety functions equipped with the instrument do not work, and
instrument damage or serious personal injury may be caused.
Keep your fingers and hands behind the barrier during measurement.
Thank you for purchasing our instrument KEW1030.
Before using the instrument,read this manual thoroughly to obtain the maximum
performance of this instrument and ensure the correct measurement.
#WARNING
Never attempt to make any measurement if any abnormal conditions, such as
broken case and exposed metal parts are present on the instrument or test lead.
Do not install substitute parts or make any modification to the instrument. Return
the instrument to your local Kyoritsu distributor for repair or re-calibration.
Do not turn the function switch with plugged in test leads connected to the circuit
under test.
Do not try to replace the batteries if the surface of the instrument is wet.
Always switch off the instrument before opening the battery compartment cover
for battery replacement.
#CAUTION
Always set the Function switch to the appropriate position before making
measurement.
Do not expose the instrument to the direct sun, high temperatures and humidity
or dew.
This instrument is designed for in-door use. It can be used under the temperature
between 0℃ and 40℃ without impairing its safety characteristics.
This instrument doesn't have dust/water-proof construction. Do not use the
instrument in dusty area or where it easily gets wet. It may lead to failure of the
instrument.
Set the Function switch to "OFF" position after use. Remove the batteries if the
instrument is to be stored and will not be in use for a long period.
Use a damp cloth and detergent for cleaning the instrument. Do not use abrasives
or solvents.
PEN TYPE DIGITAL MULTIMETER
KEW 1030
KYORITSU ELECTRICAL INSTRUMENTS
WORKS, LTD.
1.Safety warnings
#
○This instrument has been designed, manufactured and tested according to IEC
61010: Safety requirements for Electronic Measuring apparatus, and delivered in
the best condition after passed the inspection.
This instruction manual contains warnings and safety rules
which must be observed by the user to ensure safe operation
of the instrument and retain it in safe condition. Therefore, read
through these operating instructions before using the instrument.
#WARNING
Read through and understand the instructions contained in this manual before
using the instrument.
Save and keep the manual at hand to enable quick reference whenever necessary.
The instrument is to be used only in its intended applications.
Understand and follow all the safety instructions contained in the manual.
The RESPONSIBLE BODY shall be made aware that, if the equipment is used
in a manner not specified by the manufacturer, the protection provided by the
equipment may be impaired.
○The symbol#indicated on the instrument means that the user must refer to the
related parts in the manual for safe operation of the instrument.
Be sure to carefully read the instructions following each #symbol in the manual.
#DANGER :is reserved for conditions and actions that are likely to cause
serious or fatal injury.
#WARNING:is reserved for conditions and actions that can cause serious
or fatal injury.
#CAUTION :is reserved for conditions and actions that can cause injury or
instrument damage.
○ Please refer to following explanation of the symbols used on the instrument
and in this manual.
# User must refer to the explanations in the instruction manual.
 Instrument with double or reinforced insulation
〜 AC
 DC
4−3 Method of storing the test lead Test lead is stored in the rear side compartment of the instrument.
Cord is winded around the cord holder.
○Measurement categories (Over-voltage categories)
To ensure safe operation of measuring instruments, IEC61010 establishes safety
standards for various electrical environments, categorized as CAT Ⅱ to CAT IV, and
called measurement categories. These are defined as indicated below.
Higher-numbered categories correspond to electrical environments with greater
momentary energy, so a measuring instrument designed for CAT Ⅲ environments
can endure greater momentary energy than one designed for CAT Ⅱ.
CAT Ⅱ:Primary electrical circuits of equipment connected to an AC electrical
outlet by a power cord.
CAT Ⅲ:Primary electrical circuits of the equipment connected directly to the
distribution panel, and feeders from the distribution panel to outlets.
Designed to meet CAT Ⅲ 600V when the cap is attached to the test lead and to meet
CAT Ⅱ 600V when the cap is not attached to the test lead.
2.Features
This instrument is a pen-type digital multimeter and can measure: AC/DC voltage,
resistance, capacitance and frequency/duty ratio. It also provides continuity check
and diode check functions.
Designed to meet the following safety standards.
IEC61010-1 measurement category (CAT) Ⅲ 600V
IEC61010-031 (for hand-held Probe assemblies)
Double molded main body and Function switch provide comfortable single handed
grip.
Penlight illuminates brightly the point to be measured.
Backlight LCD is highly visible, even in darkness.
REL function to check the difference (DC.V/ CAP).
Auto-power-off function to save battery.
Data hold function
All ranges including Ohm range are protected against overload voltage of 600V.
Test lead is wrapped in its rear side compartment without difficulty.
Test pin can be covered by a unique cover mechanism for safety.
6−1 AC voltage(ACV), Frequency and DUTY ratio measurement
1 Set the Function switch to" "position.
2 Connect the Test pin and test lead to AC circuit as shown in the figure below to
measure AC voltage (ACV).
4.Instrument layout
3.Specification
3−1 Accuracy [ guaranteed at temperature & humidity: 23±5℃,45 〜 85% RH(*1) ]
Function
ACV
Auto-ranging(*2)
DCV
Auto-ranging(*2)
Ω
Auto-ranging
Diode check/
Continuity Check
Capacitance
Auto-ranging
Frequency
Auto-ranging
Range
4V
40V
400V
600V
400mV
4V
40V
400V
600V
400 Ω
4k Ω
40k Ω
400k Ω
4M Ω
40M Ω
Diode check
Continuity
Check
50nF
500nF
5uF
50uF
100uF
5Hz
50Hz
500Hz
5kHz
50kHz
200kHz
Accuracy
± 1.3%rdg ± 5dgt (50/60Hz)
± 1.7%rdg ± 5dgt ( 〜 400Hz)
± 1.6%rdg ± 5dgt (50/60Hz)
± 2.0%rdg ± 5dgt ( 〜 400Hz)
± 1.0%rdg ± 5dgt
± 2.5%rdg ± 5dgt
Test voltage:approx. 0.3V 〜 1.5V
Buzzer sounds when
resistance is 120 Ω or less.
± 3.5%rdg ± 10dgt
5.Functions
Auto-ranging (AUTO)
A function to automatically select the appropriate measurement range based on
the input signal. The "AUTO" mark is displayed on the LCD while this function is
activated. This function is not available in Diode check, Continuity check and Duty
ratio measurements. The "AUTO" mark is not displayed.
Hold function ( )
A function to freeze the measured value on the LCD. (Not available in Frequency
measurement)
The " " mark is displayed on the LCD when the HOLD key is pressed.
Then the measured value is frozen. Press this key again or switch the
measurement function to others to release the Hold function.
REL function ( Δ )
A function to display the difference between the measured values (relative value)
on the LCD at DCV and Capacitance functions. The "Δ" mark is displayed on the
LCD when the HOLD key is pressed. Then the value being measured is stored.
After that, the difference between the stored value and the measured value is
displayed on the LCD. Press this key again or switch the measurement function to
others to release the REL function.
Auto-power-off function
A function to turn off the instrument when 30 min. have elapsed after the Function
switch is switched from OFF to the other measurement function.
Press the HOLD key again or switch the measurement function to others to
restore from the Auto-power-off state.
Over-range indication
When the measured value exceeds the max. indication range, "OL" is displayed
on the LCD. (This indication is not displayed at AC/DC 600V range.) This
indication is not displayed while the Hold function is activated.
)
Low battery warning (
" mark is displayed
When the battery voltage drops to 2.4V±0.2V or less, the "
on the LCD.
Penlight
Set the Function switch to "LIGHT" position
to turn on the Penlight. Turn the switch to
①Penlight ON
any desirable function position.
②Select any
function to make
(Measurement cannot be performed when ③Penlight
measurement
the switch is in "LIGHT" position.) Turn the OFF Measurement function
switch to "OFF" position to turn off the light.
LCD backlight
The LCD backlight lights up by pressing down the HOLD key at any measurement
function other than OFF at least 2 sec..
Press down this key again at least 2 sec. or turn the Function switch to OFF once to
turn off the light.
Note
Penlight and LCD backlight are not turned off automatically. Be sure to turn them off
when they are not in use.
When turning on/ off the LCD backlight, the " " mark is displayed on the LCD and
the Hold function is activated. Press the HOLD button for a while to release the
function and perform the next measurement.
6.Measurement
Following measurements can be done
by pressing the SELECT key.
Frequency
DUTY ratio
ACV
ress the SELECT key and select the DUTY ratio range to measure a DUTY ratio
4P
(Pulse width/ Pulse cycle). In this case, the unit "%" is displayed on the LCD.
Note
At ACV function, a few dgts may remain displayed on the LCD after removing the
input.
Connect the test lead (minus terminal) to the earth side of the circuit under test.
When the circuit under test does not have the earth, any connection is allowed.
At Frequency and DUTY ratio measurement, the measurable min. input is approx.
1.5Vrms.
6−2 DC voltage(DCV) measurement
et the Function switch to" "position.
1S
2 Connect the Test pin to the positive (+) side of the equipment under test and the test
lead to the negative (-) side as shown in the figure below. When test lead is
connected to the positive (+) side, the "-" mark is displayed on the LCD.
± 4.5%rdg ± 5dgt
± 0.1%rdg ± 5dgt
Measurable input:
1.5Vrms or more
To prevent electrical shock to person and damage to the instrument, following
instructions must be observed.
The max. rated voltage to ground is AC/DC600V. Never attempt to make
measurement on a circuit in which electrical potential to the ground exceeding this
voltage exists.
The max. input voltage is DC600V/AC600Vrms (sin). Never attempt to make any
measurement on a circuit in which electrical potential exceeding this voltage exists.
Do not operate the Function switch during a measurement.
Never make a measurement with the Bottom case is removed.
Keep your fingers and hand behind the barrier (see 4-1) of the instrument and test
lead.
Be careful not to short-circuit the line under test with the metal part of the instrument
or the test lead during a measurement.
Never make measurement on an energized circuit at Resistance, Diode check,
Continuity check and Capacitance function of this instrument.
Always attach the cap firmly when using the test lead under CAT Ⅲ environment.
When the test lead is connected to the instrument, the lower category either of them
belongs to is applied.
⑧
⑨
Anode
⑤
①Test pin (input terminal (+); red)
②Test lead (input terminal (−); black)
:Connected to the negative (−) side or the earth of the circuit.
③ Protective cover
:Covering the Test pin for safety purpose.
④ Penlight
⑤ Barrier
:It is a part providing protection against electrical shock and ensuring the
minimum required air and creepage distances.
⑥ Function switch
■ OFF :Power off (Battery will not be wasted.)
■ AC voltage (ACV)
Frequency (Hz)
DUTY(%)
Switches by pressing the "SELECT" key.
RELΔ (relative value display)
■ DC voltage (DCV)
Switches by pressing the "SELECT" key.
Diode check
Continuity check
■ Ω Resistance
Switches by pressing the "SELECT" key.
Capacitance
RELΔ (relative value)
■
Switches by pressing the "SELECT" key.
■ LIGHT:Turning on the Penlight. Set the Function switch to this position first,
and then turn it to any desirable function position. Then the Penlight turned
on and illuminates the test point. (Measurement cannot be performed in this
switch position.)
⑦ HOLD key
・Freezing the indicated value.
・Turning on the LCD backlight. (Press this key at least 2 sec.)
⑧ SELECT key
・Switching the measurement modes.( / Hz/ DUTY andΩ/
/ )
・Enable/ Disable the RELΔ function. (Only at DCV/ Capacitance)
⑨ LCD indication
Low battery warning Diode check
Continuity check
Auto-ranging
RELΔ
DC
}
AC
Unit
Polarity
Hold
4−2 Protective cover
#CAUTION
Do not apply excessive force to the Test pin and the Protective cover.
Be careful not get hurt by the tip of the Test pin when setting or releasing the
Protective cover.
Designed to meet CAT III 600V when the cap is attached to the test lead and to
meet CAT II 600V when the cap is not attached to the test lead.
Use the Protective cover to cover the Test pin when carrying or storing the
instrument.
1Method of setting the Protective cover
Pinch the tip of the Protective cover, and pull it towards the tip direction.
Then turn it 90 degrees as shown in the figure below to match the marks on the
cover and on the instrument body.
Set
CAT Ⅲ
Release
2M
ethod of releasing the Protective cover Pinch the tip of the Protective cover, and pull it towards the tip direction.
Then turn it 90 degrees as shown in the above figure. Then the cover is stored
automatically and the Test pin (positive terminal) appears.
#WARNING
To avoid getting electrical shock, be sure to remove the measuring terminals from
the equipment under test; set the Function switch to OFF position before replacing
batteries.
2.Backward direction
Cathode
#DANGER
Do not mix new and old batteries. Never mix the different kinds of batteries.
Make sure to install batteries in correct polarity as marked inside.
Be sure to fasten the Battery case-fixing screws after the battery replacement.
#CAUTION
Dispose the used batteries according to the rules, which are defined by each
community.
(Example)
"OL"
is displayed.
①Set the Function switch to OFF position.
②Loosen one Battery cover-fixing screw, and remove the Battery cover.
③Replace the batteries with new ones. Make sure to install batteries in correct polarity
as marked inside. Always replace all two batteries with new ones at the same time.
④Put the Battery case at the original position, and fasten the screws.
Note
When the forward voltage of diode is out of the range of 0.3V〜1.5V,
measurement may not be done. (Zener diode, LED and etc.)
Battery cover-fixing screw
ress the SELECT key to conduct the Continuity check. Connect the
4P
Test pin and the test lead to the equipment under test.
Buzzer sounds when continuity is ok. (120Ω or less)
Resistance value of 400Ω or less is displayed on the LCD.
Button type battery
LR44(SR44) 1.5V×2pcs
Note
Indicated value may not be "0" after shorting the tip of the test lead.
However, this is because of the resistance of the test lead and not a failure.
6−4 Capacitance measurement(nF , μF)
1 Set the Function switch to "
⑦
7.Battery replacement
Following measurements can be done
by pressing the SELECT key.
Diode check
Continuity check
Ω
(Example)
Forward voltage
is displayed.
⑥
8.Maintenance
Cleaning
Use a cloth dipped in water or neutral detergent for cleaning the instrument.
Do not use abrasives or solvents. Otherwise, instrument get damaged,deformed
or discolored.
" position.
3 Press the SELECT key to display a REL value (relative value).
Press this key and store the initial measured value. After that, the difference between
the stored value and the measured value is displayed on the LCD. Auto-ranging
function doesn't activate when this function is enabled. The first selected range will
be held. The relative measurement is allowed in the following range.
* Measuring range = Full scale value at a range − initial value
Press this key again or switch the measurement function to others to release the REL
function.
Following measurements can be done
by pressing the SELECT key.
RELΔ (relative value)
DCV
"△" mark is displayed
on the LCD.
6−3 Resistance ( Ω ) measurement, Diode/ Continuity check
#DANGER
DC 600V
AC 600Vrms(sin)
± 3.5%rdg ± 5dgt
Anode
④
②
± 1.0%rdg ± 5dgt
3 Press the SELECT key to conduct the Diode check.
Connect the Test pin and the test lead to the equipment under
test. When following indication is confirmed, the diode is good.
Cathode
③
①
± 2.5%rdg ± 5dgt(Accuracy is
DUTY(pulsewidth/ pulse
0.1 〜 99.9%
guaranteed up to 10kHz.)
cycle)
Note:
Following abbreviations are used in above table.
rdg is an abbreviation of "reading", and it means the indicated value at a
measurement.
dgt is an abbreviation of "digit", and it means the figure to be displayed at the
rightmost digit.
(*1): Except for 40MΩ range at Ohm function.
(*2): At Voltage function, the Auto-ranging function is released by pressing the
SELECT key. To measure a voltage again, turn the Function switch to the "OFF"
position once. Then set it to the Voltage function again.
3−2 General specification
Method of operation
: △Σ method
Display
: Liquid crystal display (max. 3999 counts)/Units/ Marks
Over-range indication : "OL" displayed when exceeding the measuring range.
(except for AC/DC 600V range)
Range switching
: Fully-automatic range
(Single range is available at Continuity, Diode check and
DUTY range.)
Range shifts to upper range:4000 counts or more.
Range shifts to lower range:less than 360 counts.
Sample rate
: twice per second
Functional construction : OFF/ ACV/ DCV/Ω/ Capacitance
Key
: HOLD/ Hz/ DUTY/ / /
RELΔ (only at DCV and Capacitance ranges)
Power source
: Button type battery LR44(SR44)1.5V x 2
" mark is displayed at 2.4V±0.2V or less.
Low battery warning
:"
Dimension
: 190(L) x 39(W) x 31(D)mm
Weight
: Approx. 100g (including batteries)
Location for use
: Altitude up to 2000m, in-door use
Operating temperature : 0〜40℃, relative humidity 85% or less
& humidity range
(no condensation)
Storage temperature
: -20〜60℃, relative humidity 85% or less
& humidity range
(no condensation)
Accessories
: Carrying case x 1
Button type battery LR44(1.5V) x 2
Instruction manual x 1
Standards (Safety)
: ・IEC/EN 61010-1
Measurement category (CAT) Ⅲ 600V
Pollution degree 2
・IEC/EN 61010-031
(EMC)
: ・EN 61326
3−3 Electrical characteristics
Temperature &
: 23℃±5℃, relative humidity 85% or less
humidity range
(no condensation)
(guaranteed accuracy)
" mark is displayed.
Supply voltage range : 3.4V till the "
(guaranteed accuracy)
Insulation resistance
: 10MΩ or more/ DC1000V
(between electrical circuit and case enclosure)
Withstand voltage
: AC5.55kVrms, sine wave (50/60Hz for 1 min.)
(between electrical circuit and case enclosure)
Overload protection
: 720V (AC/DC) for 10 sec. at voltage function
(Over-voltage protection) 600V (AC/DC) for 10 sec. at all functions
other than voltage function
Rated supply voltage : DC3.0V
Rated power
: Approx. 4mVA (when battery voltage is 3.0V)
Max. rated power
: Approx.30mVA (when lights are on)
Continuous operating : Approx.80 hours (DCV measurement)
Approx.15 hours (A operation; turning the light on for
time
10 sec. and off for 20 sec., is repeated.)
4−1 Instrument layout
± 0.8%rdg ± 5dgt
1.Forward direction
3 Press the SELECT key and select the Frequency range to measure a frequency.
In this case, the unit "Hz" is displayed on the LCD.
Max. input voltage
1 Set the Function switch to" Ω "position.
2 Connect the Test pin and test lead to the equipment under test as shown in the
figure below.
DISTRIBUTOR
2 Press the SELECT key to make the indicated value to "0" before
connecting the test lead to the equipment under test.
Press the SELECT key to make the indication
to 0.
3 Connect
the Test pin and the test lead to the equipment under test as shown in the
figure below.
Note
Measuring time varies depending on the capacitance to be measured.
Capacitance
to be measured
Measuring
time
< 4 μF
< 40 μF
< 100 μF
2 sec.
7 sec.
15 sec.
Kyoritsu reserves the rights to change specifications or designs desscribed in this manual
without notice and without obligationss.
2-13
92-1634E
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