KYORITSU 2031 - Manual

INSTRUCTION MANUAL
DIGITAL AC CLAMP METER
KEW SNAP 2031
Jaw Trigger
Range Switch
Data Hold Button
Transformer Jaws Display
KEW SNAP
Barrier
１．SAFETY WARNINGS
○This instrument has been designed and tested according to IEC
Publication 61010-1, Safety Requirements for Electronic Measuring
Apparatus. 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 instructions contained in this
manual before starting using the instrument.
●Keep the manual handy to quick reference whenever
necessary.
●Be sure to use the instrument in its intended applications only
and to follow measurement procedures described in the
manual.
●Be sure to understand and follow all safety instructions
contained in the manual.
Failure to follow the above instructions may cause injury,
instrument damage and/or damage to equipment under test.
○The symbol indicated on the instrument means that the user must
refer to related parts in the manual for safe operation of the
instrument. Be sure to carefully read instructions following each
symbol in this manual.
DANGER ：Conditions and actions that are likely to cause
serious or fatal injury.
WARNING：Conditions and actions that could cause
serious or fatal injury.
CAUTION ：Conditions and actions that could cause minor
injury or instrument damage.
Following symbols are used on the instrument and in the instruction
manual. Attention should be paid to each symbol to ensure your safety.
Refer to the instructions in the manual.
Indicates an instrument with double or reinforced insulation.
Indicates that this instrument can clamp on bare conductors when
measuring a voltage corresponding to the applicable Measurement
category, which is marked next to this symbol.
Indicates AC (Alternating Current).
DANGER
●Never make measurement on a circuit above 300V AC. The
instrument is designed for measurement on a low-voltage
circuit below 300V AC.
●Do not attempt to make measurement in an explosive
atmosphere（i.e. in the presence of flammable gasses or
fumes, vapor or dust）
.
●The transformer jaws are made of metal and their tips are not
insulated. Be especially careful about the hazard of possible
shorting where equipment under test has exposed conductive
parts.
●Never attempt to use the instrument if the instrument or your
hand is wet.
●Do not exceed the maximum allowable input value of any
measurement range.
●Never open the battery compartment cover when making
measurement.
●Never try to make measurement if any abnormal conditions,
such as broken Transformer jaws or case is noted.
●The instrument is to be used only in its intended applications
or conditions.
Otherwise, safety functions equipped with the instrument
doesn’
t work, and instrument damage or serious personal
injury may be caused.
WARNING
●Never attempt to make any measurement if the instrumtent
has any structural abnormality such as cracked case and
exposed metal part.
●Do not install substitute parts or make any modification to the
instrument. Return the instrument to Kyoritsu or your
distributor for service and repair to ensure that safety features
are maintained.
●Always switch off the instrument before opening the battery
compartment cover for battery replacement.
CAUTION
●Make sure that the range switch is set to an appropriate
position before making measurement.
●Be sure to set the range switch to the OFF position after use.
When the instrument will not be in use for a long period of
time, place it in storage after removing the batteries.
●Do not expose the instrument to the direct sun, extreme
temperatures or dew fall.
●Use a damp cloth and detergent for cleaning the instrument.
Do not use abrasives or solvents.
○Measurement categories (Over-voltage categories)
To ensure safe operation of measuring instruments, IEC61010
establishes safety standards for various electrical environments,
categorized as CAT I to CAT IV, and called measurement categories.
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.
CATⅠ: Secondary electrical circuits connected to an AC electrical
outlet through a transformer or similar device.
CATⅡ: Primary electrical circuits of equipment connected to an
AC electrical outlet by a power cord.
CATⅢ: Primary electrical circuits of the equipment connected directly to
the distribution panel, and feeders from the distribution panel to
outlets.
CATⅣ: The circuit from the
service drop to the
service entrance, and
to the power meter
and primary over-
current protection
device (distribution
panel).
Incoming wire
CAT.IV
Interior wiring
Transformer
CAT.I
CAT.II
CAT.III
Socket
４．OPERATlNG INSTRUCTIONS
４−１Battery Check
①Set the range switch to 20A or 200A
②If the display is clear without showing symbol "BATT", battery voltage
is OK.
③If the display remains blank or symbol "BATT" appears, replace the
batteries in accordance with the battery replacement procedures as
outlined in section 5.
４−２AC Current Measurement
CAUTION
●The maximum size conductor to be tested is approx. 24 mm in
diameter. An accurate measurement cannot be made when
the transformer jaws are not fully closed on a conductor larger
than 24mm.
●When measuring a large current, the transformer jaws may
buzz. This is not a fault and does not affect the accuracy.
●About 10 minutes after the instrument is turned on, the Auto
Power Off function turns the instrument off even during current
measurement. To continue measurement, turn the range
switch to OFF, then to 20A or 200A again.
DANGER
●Never use the instrument on a circuit above 300V AC.
●The transformer jaws are made of metal and their tips are not
insulated. Be especially careful about the hazard of possible
shorting where equipment under test has exposed conductive
parts.
●Do not attempt to make measurement with the battery
compartment cover removed from the instrument.
●Keep your fingers and hands behind the barrier during
measurement.
①Set the range switch to 20A or 200A.
②Press the jaw trigger to open the transformer jaws and clamp onto
one conductor only. Try to place the conductor at the center of the
transformer jaws.
Correct Wrong
４−３Using Data Hold Function
①Press the Data Hold button to freeze the reading. Symbol "H" is
displayed to indicate the instrument being in the Data Hold mode.
②Press the button again to cancel the Data Hold mode. The Data Hold
function is available on both 20A and 200A ranges for measurement
in hard-to-read locations.
５．BATTERY REPLACEMENT
When the display remains blank or symbol "BATT" appears, replace
the batteries.
DANGER
Never replace the batteries while making measurement.
①Set the range switch to the OFF position.
②Press in the hole on the battery compartment cover with the tip of a
pointed object, then slide open the cover.
③Replace the batteries with new ones, observing correct polarity.
Replacement batteries should be type LR-44 or SR-44.
＊The instrument does not operate if the polarity is set reversely.
④Slide the battery compartment cover in place.
６．OPTIONAL ACCESSORIES
●MODEL 8004 and 8008（Multi-Trans）
These Multi-Trans extend measurement capability of KEW SNAP 2031,
enabling measurement of a current more than 200A and tests on a
large bus-bar or conductor.
①Set the range switch of KEW SNAP 2031 to 20A to 200A.
②As shown in the figure, open the transformer jaws of KEW SNAP
2031 and close them over the pickup coil of MODEL 8004 or 8008
Multi-Tran.
③Clamp the Multi-Tran onto the bus-bar or conductor under test.
④Take the reading on KEW SNAP 2031 and multiply it by 10.
２．FEATURES
①Pocket-size, miniature AC clamp meter
②Tear drop shaped jaws for ease of use in crowded cable areas and
other tight places
③Designed to international safety standard IEC61010-1（CAT Ⅲ 300V）
④A wide range of frequency response from 40 Hz to 1 kHz
⑤Data hold function to allow for easy readings in dimly light or hard-to-
read locations
⑥Auto-power-off function to conserve battery power
３．SPECIFICATIONS
Range
20A
200A
Accuracy
0∼19.99Ａ
0∼199.9Ａ
±2.0%rdg±5dgt（50Hz∼1kHz）
±2.0%rdg±5dgt（50･60Hz）
±3.0%rdg±10dgt（40Hz∼1kHz）
*Up to 2000A when used with KEW SNAP 2031.
For more information, refer to the instruction manual for MODEL 8004
or 8008.
Kyoritsu reserves the rights to change specifications or designs
described in this manual without notice and without obligations.
8004
8008
Maximum Conductor Size Range
60mm in diameter
100mm in diameter
0∼1000A AC
0∼3000A AC※
10：１
10：１
Model Multiplication Factor
Operating System Dual integration
Display Field effect liquid crystal display
Measuring Ranges 20A/200A AC
Low Battery Indication "BATT" symbol appears on the
display
Overrange Indication "1" flashes on the highest digit
Response Time Approx. 1 second
Auto Power Off The instrument automatically
shuts off approx. 10 minutes
after being turned on.
Data Hold For all ranges
Location for use Indoor use, Altitude up to 2000m
Storage Temperature & Humidity -10∼50℃, relative humidity up
to 75％
（without condensation）
Operating Temperature & Humidity 0∼40℃, relative humidity up to
90％
（without condensation）
Conductor Size Approx. 24mm in diameter
Safety Standard IEC61010-1 CAT， Ⅲ，300V
IEC61010-2-032
Dimension 147 （L） ×58.5 （W） ×26 （D） mm
Weight Approx. 100g （battery included）
Power Source Two LR-44 （3V）or SR-44
batteries
Battery Life Approx. 100 hours in
continuous use
Current Consumption Approx. １mA
Accessories Instruction Manual
Two LR-44 batteries
Carrying Case Model 9090
Options Model 8004, 8008（Multi-Tran）
10―07
DISTRIBUTOR
92―1354D