
INSTRUCTION MANUAL
CARD TYPE AUTO RANGE
DIGITAL MULTIMETER
KEW1019R
Features
●True-RMS type
● Practical design Hard case
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 passing quality control tests. This instruction
manual contains warnings and safety rules which have to be
observed by the user to ensure safe operation of the
instrument and to maintain 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.
● 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.
Failure to follow the instructions may cause injury,
instrument damage and/or damage to equipment under
test. Kyoritsu is by no means liable for any damage
resulting from the instrument in contradiction to this
cautionary note.
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. It is essential to read the
instructions wherever the symbol appears 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.
● Symbols listed below are used on this instrument.
User must refer to the manual.
Instrument with double or reinforced insulation.
AC DC Ground (Earth)
This instrument complies to WEEE Directive
(2002/96/EC). Please contact your local distributor
at disposal.
Measurement Category
O Circuits which are not directly connected to the mains
power supply.
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.
CAT IV The circuit from the service drop to the service
entrance, and to the power meter and primary over current
protection device(distribution panel).
This instrument is basically designed for CAT II 600V, but
the cap for CAT III 300V is supplied with.
DANGER
● Never make measurements under the circumstances
exceeding the designed measurement category and the
rated voltage of the instrument.
● 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.
● Do not exceed the maximum allowable input of any
measuring range.
● Never open the case during a measurement.
● To avoid electrical shock by touching the equipment under
test or its surroundings, be sure to wear insulated
protective gear.
● Protective figerguard on the test leads provide protection
to keep your fingers and hands from touching an object
under test. Keep your fingers and hands behind the
protective fingerguard during measurement.
WARNING
● Never attempt to make measurement if any abnormal
conditions, such as broken case and exposed metal
parts are found on the instrument or test leads.
● Verify proper operation on a known source before use or
take action as a result of the indication of the
instrument.
● Firmly attach the caps to the test leads when
performing measurements in CAT III test
environments.
●Do not try to replace the battery if the surface of the
instrument is wet.
● Do not rotate the function switch if the instrument
and the equipment under test are connected.
● Do not install substitute parts or make any modification to
the instrument. For repair or re-calibration, return the
instrument to your local KYORITSU distributor.
●Ensure that the test lead is disconnected from the object
under test, and that the instrument is powered off when
opening the battery compartment cover for battery
replacement.
●Stop using the test lead if the outer jacket is damaged and
the inner metal or color jacket is exposed.
CAUTION
● Use of this instrument is limited to domestic, commercial
and light industry applications. Strong electromagnetic
interference or strong magnetic fields, generated by
large currents, may cause malfunction of the instrument.
● Set the function switch to an appropriate position before
starting measurement.
● This instrument isn’t dust & water proofed. Keep away
from dust and water.
● Do not pull or twist the test leads to prevent the risk of
damage.
● Power off the instrument after use. Remove the battery if
the instrument is to be stored and will not be in use for a
long period.
● Do not expose the instrument to direct sunlight, high
temperature and humidity or dewfall.
● Use a cloth dipped in water or neutral detergent for
cleaning the instrument. Do not use abrasives or
solvents.
2. Specification
Temperature: 23 ± 5°C, Humidity: 45 - 75%
ACV (Auto Range)
±1.3 %rdg±5dgt (50/60Hz)
±1.7 %rdg±5dgt (45-500Hz)
±1.6 %rdg±5dgt (50/60Hz)
±2.0 %rdg±5dgt (45-500Hz)
Guaranteed accuracy : 0.010V-600.0V
CF≦ 3 (50/60Hz), less than 900V peak
For non-sinusoidal waveforms, add ±0.5 %rdg±5dgt
DCV (Auto Range)
Guaranteed accuracy : 0.0mV-±600.0V
ACV/DCV input impedance : approx. 10MΩ
Resistance / Continuity (Auto Range)
Buzzer threshold value
60Ω or less.
Guaranteed accuracy : 0.0 Ω-40.00M Ω
Open-loop voltage :less than 3V
Input protective voltage : AC/DC600V 10 sec
Capacitance (Auto Range)
Guaranteed accuracy : 0.000nF-600.0µF
Input protective voltage : AC/DC600V 10 sec
●Measuring method : ⊿ Σ method
●Over-range indication : OL
●Measurement cycle : 2.5 times per second
(600µF range of Capacitance
function 0.2 times per second)
●Applicable standards :
IEC 61010-1/ 61010-031/ 61010-2-033
CAT III 300V / CAT II 600V
Pollution degree 2, Indoor use, Altitude up to 2000m
IEC 61326 (EMC)
In the radio-frequency electromagnetic field of 3V/m,
accuracy is within five times the rated accuracy.
EN 50581 (RoHS)
●Withstand voltage :
AC3470Vrms 5sec between circuit and enclosure
●Insulation resistance :
100MΩ or more /1000V between enclosure and
electrical circuit
●Operating temperature and humidity range :
0 to 40°C, 80%RH or less (no condensation)
●Storage Temperature and humidity range :
-20 to 60°C, 80%RH or less (no condensation)
Protective fingerguard:
It is a part providing protection against electrical shock
and ensuring the minimum required air and creepage
distances.

●Power source : DC3V CR2032×1
●Current consumption : 2mA or less
●Battery life (ACV, continuous, no load, with CR2032) :
Approx. 120 hours
●Dimension, Weight : 126(L)×85(W)×18(D)mm,
approx. 135g (including battery and hard case)
●Accessories :
Battery CR2032 1pce
Instruction manual 1pce
Hard case (M-9188) 1pce
3. ACV/DCV Measurement
DANGER
●Never make measurement on a circuit in which
voltage over 600V exists.
●Keep your fingers and hands behind the protective
figerguard during measurement.
NOTE
● Beep sounds when the instrument switches the ranges
from 60V to 600V.
● If the connection is reversed, the “ - “ mark will be
displayed on the LCD. (DCV measurement).
● The LCD shows some digits at the ACV or the DCV
range even while the test leads are open. And, it may
show some digits instead of 0 even if the test leads are
shorted. However, these phenomena don’t affect
measurement results.
4.Resistance(Continuity)Measurement
WARNING
Never use the instrument on an energized circuit.
NOTE
● LCD shows ”OL” when the test leads are open.
● Even if the test leads are shorted, the indicated values
may not be”0”. But this is because of the resistance of
test leads and not a failure. High resistance
measurement and capacitive components may fluctuate
readings.
5. Capacitance Measurement
WARNING
Never use the instrument on an energized circuit.
Discharge the capacitor before measurement.
Press the RELΔ key before starting a measurement and
adjust the displayed value to “0.000nF”.
NOTE
Measurement time at 600µF range is a bit long since the
reading is updated once in approx 5 sec.
6. Other Functions
● REL Function
Press the RELΔ key to enable this function and store the
measured value to display the differences between the
stored value and the values measured in further tests.
(at any functions other than Continuity) The measurement range will be fixed when the REL function is
enabled, and the measuring range will be between the
initial value and the full scale value. (except for
Capacitance)
Press the RELΔ Key again to release the stored value.
“ Δ ” symbol appears
when RELΔ Key is pressed.
● Low battery indication
“ ” symbol appears
at 2.3±0.1V or less.
● Sleep Function
Automatically powers save the instrument in about 15 min
after the last switch operation.
Buzzer beeps five times one minute before entering into
the Sleep mode, and also one time just before
entering into the mode.
● This instrument can make measurements while one test
lead is left in place. So you can perform a test with
checking the readings.
7. Battery Replacement
WARNING
● Replace the battery when the " " mark- low battery
voltage warning- appears on the LCD.
Otherwise, precise measurement cannot be made. If the
battery is completely exhausted, the LCD goes blank
without showing the " " mark.
● Do not try to replace the battery if the surface of the
instrument is wet.
● Power off the instrument before opening the case for
battery replacement.
CAUTION
● Install a battery in correct polarity as indicated in the
Battery Compartment.
(1) Set the Function Switch to "OFF" position.
(2) Remove the Hard case.
1. Remove the test leads from the holder.
2. Open and hold the Hard case cover about 90-degree,
and then push the instrument through the hole on the
back side of the Hard case.
1. 2.
(3) Loosen the screw on the back side of the instrument
and remove the case.
(4) Replace the battery with a new one (CR2032)
observing the correct polarity.
(5) Be sure that the test leads should be in the guide slot
well, then, install the case and tighten the screw.
(6) Attach the Hard case.
1.
Pass the test leads
through the slit first, and put
the main unit in the Hard
case.
2.
Slide and attach the Hard
case cover.
7-18 92-2188D
Kyoritsu reserves the rights to change specifications
or designs described in this manual without notice
and without obligations.
Push RELΔ key.
” Δ “ appears on the LCD.
Be sure that the test
leads should be in the
guide slot well.