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Yokogawa Meters & Instruments Corporation
YOKOGAWA Meters & Instruments Corporation
International Sales dept.
Tachihi Bld. No.2, 6-1-3, Sakaecho, Tachikawa-shi, Tokyo, 190-8586 Japan
Phone: 81-42-534-1413 Facsimile: 81-42-534-1426
YOKOGAWA CORPORATION OF AMERICA (U.S.A)
Phone: 1-770-253-7000 Facsimile: 1-770-251-2088
YOKOGAWA EUROPE B.V. (THE NETHERLANDS)
Phone: 31-334-64-1611 Facsimile: 31-334-64-1610
YOKOGAWA AMERICA DO SUL S. A. (BRAZIL)
Phone: 55-11-5681-2400 Facsimile: 55-11-5681-1274
YOKOGAWA ENGINEERING INSTRUMENTS KOREA CORPORATION
(KOREA)
Phone: 82-2-551-0660 Facsimile: 82-2-551-0665
YOKOGAWA AUSTRALLIA PTY. LTD. (AUSTRALLIA)
Phone: 61-2-9805-0699 Facsimile: 61-2-9888-1844
YOKOGAWA BLUE STAR LTD. (INDIA)
Phone: 91-80-4158-6000 Facsimile: 91-80-2852-1441
LTD. YOKOGAWA ELECTRIC (RUUSIAN FEDERATION)
Phone: 7-095-737-7868 Facsimile: 7-095-737-7869
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ERA : 06-6368-7041 777731): 06-6368-7045
KIM5JE-2006.4
User's CL150
Manual Clamp-on Tester
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6. Calibration and After-sales Service
Should any failure occur while you are using the tester, follow the instructions
given below. If the tester still fails to operate correctly and needs repair,
contact the vendor from whom you purchased the instrument or the nearest
Yokogawa Meters & Instruments sales office.
e Turn off the POWER switch once, then turn it back on again.
e If the tester does not turn on, replace the battery with a new one.
Calibration
It is recommended that the instrument be calibrated once every year.
IM CL150 15
General Specifications
e Operating System : Dual integration
e Measurement Function : AC current, DC current, AC voltage, resistance,
continuity check
Display : Liquid crystal display with maximum counts of 4000
Overrange Indication : "OL" is shown on the display
Response Time : Approx. 2 seconds.
Temperature and Humidity for Guaranteed Accuracy : 23°C +5°C, relative
humidity 45 to 75% without condensation
e Operating Temperature and Humidity : 0 to 40°C, relative humidity up to
85% without condensation
e Storage Temperature and Humidity : -20 to 60°C, relative humidity up to
85% without condensation
e Effect of conductor position : Within +2.0%rdg, +3dgt to a 10 mm-dia
conductor, at every part inside the jaws
e Effect of external magnetic field : 1A or less in AC or DC magnetic field of
400 A/m
Power Source : Two R6P 1.5V battery
Battery Life : Approx. 150 hours (continuity)
Current Consumption : Approx. SmA max. (Sleep function : Approx. 20pA)
Sleep function : Automatically powered down in Approx. 10 minutes after
the last switch operation
e Withstanding Voltage : 5500V AC, 50/60Hz for 1 minute between electrical
circuit and housing case or metal part of the jaws
e Insulation Resistance : 10MQ or greater at 1000V between electrical circuit
and housing case or metal part of the jaws
Conductor Size : Approx. 54.5mm diameter max.
Dimensions : Approx.105(W) x 250(H) x 49(D) mm
Weight : Approx. 470g (with batteries)
Safety Standard: EN 61010-1
EN 61010-2-031, EN61010-2-032
AC/DC 600V CAT lll, AC/DC 1000V CAT II,
Pollution degree2, indoor use
e EMC Standard: EN 61326, EN 55022
e Radiation immunity : EN61000-4-3
e Accessories : Test leads Model 98011 ------------- 1set
R6P batteries A 2
Carrying case Model 93034 +--+ 1
Output Plug Model 98012 ---------- 1
User's Manual RERRRRRREERRERREREREERRRRKEE 1
e Optional Accessories : Clamp adapter Model 99025
Output cable for terminal screw Model 91019
14 IM CL150
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OUTPUT (AC Current Ranges)
DC Output : 100.0mV per 1000 counts (Output impedance : about 10kQ)
Range Measuring range Accuracy (Frequency Range)
400A O to 400.0mV/0 to 400A 11.5% rdg £0.5mV (50/60Hz)
12.5% rdg +0.5mV (40 to 1kHz)
0 to 150.0mV/0 to 1500A +1.5% rdg +0.5mV (50/60Hz)
2000A 13.5% rdg £0.5mV (40 to 1kHz)
150.0 to 200.0mV/1500 to 2000A 13.5% rdg (50/60Hz)
IM CL150 13
5. Specifications 1. E O Ex BA
E Instrument Specifications
e Measuring Ranges and Accuracy (at 23 £5°C, 45 to 75% relative humidity)
AC Current ~400A, ~~2000A
Measuring Resoluti Accuracy (frequency range) Maximum i]
Ranges range on Measureme
9 nt Time
+1.0% rdg +3dgt (50/60Hz) Continuous
400A 010 400.04 101A 12.0% rdg +3dgt (40 to 1kHz) X
0 to 1000A +1.0% rdg +3dgt (50/60Hz)
2000A | 1000 to 1500A [1A +3.0% rdg +3dgt (40 to 1kHz) 15min.
1500 to 2000A 13.0% rdg (50/60Hz) 5min.
AC Voltage (~~V) Auto-ranging
Range Measuring range Resolution Accuracy
40V 0 to 40.00V 0.01V
400V 15.0 to 400 OV ЛУ +1.0% rdg +2dgt (50/60Hz)
— +1.5% rdg +3dgt (40 to 1kHz)
750V 150 to 750V 1V
Initially set to the 40V range. Input impedance is about 1MQ.
DC Voltage (===V) Auto-ranging eo
Range Measuring range Resolution Accuracy т ina —
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40V 0 to +40.00V 0.01V e
400V +15.0 to +400.0V | 0.1V +1.0% rdg +2dot
1000V +150 to +1000V 1V
Initially set to the 40V range. Input impedance is about 1MQ. _
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Initially set to the 4000 range. In the continuity check mode, fixed to the 4000 range
and when the reading is not more than . 50 +350, the buzzer beeps.
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4. Battery Replacement
To avoid electric shock hazard, make sure to set the Function Selector switch
to "OFF" and remove the test leads from the instrument before trying to
replace battery.
e Do not Mix new and old batteries.
e Make sure to install battery in correct polarity as indicated in battery
compartment.
If the battery voltage becomes too low for the instrument to operate normally,
"III " is shown on the display. Then, replace the battery. Note that when
the battery is completely exhausted, the display blanks without " EXT"
shown.
(1) Set the Function Selector switch to the "OFF" position.
(2
—
Unscrew and remove the battery compartment on the bottom of the
instrument.
(3
—
Replace the battery observing correct polarity. Use two new R6P
batteries.
(4
—
Re-place and screw the battery compartment cover.
Battery
compartment cover
IM CL150 11
3.4 Optional Accessories
Clamp Adapter Model 99025 (For AC current measurement only)
Clamp Adapter Model 99025 is designed to increase the measuring capability
of a clamp meter. With the use of the Clamp Adapter, you can not only extend
current range over 3000A, but also clamp on a large bus-bar or conductor.
(1) Set the Function Selector switch to the "~~ A" position.
(2) As shown in the figure below, clamp Model CL150 onto the pickup coil of
Model 99025.
(3) Clamp Model 99025 onto the bus-bar or conductor under test.
(4) Take the reading on Model CL150 and multiply it by 10.
MAX
100mm
NOTE
For the detailed specification, refer to the Clamp Adapter User's Manual.
10 IM CL150
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3.3 OUTPUT Terminal (For current ranges only)
NN WARNING
e Never use the instrument on a circuit above 750VAC or 1000VDC. This
may cause electrical shock hazard and damage to the instrument or the
circuit under test.
e Never apply voltage to the OUTPUT terminal.
Only on the "~~400A" or "~~2000A" range, DC voltage proportional to the
input current is output from the OUTPUT terminal.
(1) Attach the output plug to a connection lead so that the output voltage can
be connected to a recording device such as a chart recorder.
©
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(2) Slide the terminal cover to the right to disclose the OUTPUT terminal and
insert the output plug into the terminal. Make connection to the recording
device.
(3) Set the Function Selector switch to the "~~ 400A" or "~~ 2000A" position
and follow appropriate measurement instructions.
NOTE
e Output voltage is 1mV/A on the "~~400A" range and 0.1mV/A on the
"~~ 2000A" range. Set an appropriate input sensitivity on the recorder.
e The peak hold function does not apply to the recorder output even if the
instrument is in the peak hold mode.
e For long term measurement, disable the sleep function.
IM CL150 9
3. Other Functions
3.1 Sleep Function
This is a function to prevent the instrument from being left powered on in
order to conserve battery life. This function causes the instrument to enter the
Sleep (powered-down) mode about 10 minutes after the last switch or button
operation.
To exit the Sleep mode, press the Data hold, button or button
or turn the Function Selector switch back to "OFF", then to any other position,
or press any button.
The current is consumed a little in the Sleep mode.
How to Exit the Sleep Mode
Turn the Function Selector switch from "OFF" to another position with the
data hold function button pressed. Then, "P.OFF" is shown on the display.
This disables the sleep function and enables continuous use of the
instrument.
NOTE
e Connecting the plug to the OUTPUT terminal disables the Sleep function.
The function is enabled on removing the plug from the terminal.
e The Sleep function is disabled in the PEAK measurement mode.
3.2 Data Hold Function
This is a function used to freeze the measured value on the display. Press the
Data Hold button to freeze the reading. The reading will be held regardless of
subsequent variation in input. "[E}" is shown on the upper right corner of the
display while the instrument is in the Data Hold mode.
To exit the Data Hold mode, press the Data Hold button again.
NOTE
e The Data hold function is disabled in the peak measurement mode on the
AC current range.
e When the Sleep function is activated, the Data hold mode turns to the
normal mode.
8 IM CL150
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(3) Press the button once to enter from the normal mode to the
continuity check mode. "*))" should be indicated on the display.
Short the tip of the test leads and check whether the display reads "0".
Connect the tip of the test leads to the circuit under test. If the resistance
is 500 or less, the buzzer beeps.
—
(4
(5
a
NOTE
When shorting the tip of the test leads, the display may read a very small
resistance instead of "0". This is the resistance of the test leads on the
display.
IM CL150 7
2.4 Resistance Measurement (Normal Mode) (4) BE — EaximA3— HUT, 7I9—DIS>T, ED “O” CA
Never use the instrument on an energized circuit.
ERC
Black test lead” Red test lead
2.4.1 Resistance Measurement (Normal Mode)
(1) Set the Function Selector switch to the " 2/))" position. The "Q" should
be shown on the upper right corner of the display.
(2) Slide the terminal cover to the left to disclose the Hi and Lo terminals.
Plug the red test lead into the Hi terminal and the black test lead into the
Lo terminal. Check that "OL" (over indication) is indicated on the LCD
display.
Short the tip of the test leads and check whether the display reads "0".
—
(3
(4
a
Connect the tip of the test leads to the circuit under test respectively. Take
the reading on the display.
NOTE
When shorting the tip of the test leads, the display may read a very small
resistance instead of "0". This is the resistance of the test leads on the
display.
2.4.2 Continuity Check (400Q range fixed)
The continuity check mode is enabled by pressing the button on
resistance range. "*))" and “Q” is indicated on the display to show the
instrument in the continuity check mode. The buzzer beeps, if the resistance
under test is 50Q or less.
(1) Set the Function Selector switch to the " 2 /*)" position.
(2) Slide the terminal cover to the left to disclose the Hi and Lo terminals.
Plug the red test lead into the Hi terminal and the black test lead into the
Lo terminal. Check that "OL" (over indication) is indicated on the LCD
display.
6 IM CL150 IM CL150
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8 IM CL150
2.3 Voltage Measurement
Do not make measurement on a circuit above 750V AC or 1000V DC. This
may cause shock hazard or damage to the instrument or equipment under
test.
Red test lead
Black test lead
2.3.1 DC Voltage Measurement
(1) Set the Function Selector switch to the "===V " position. "DC" should be
shown on the upper left corner of the display.
Slide the terminal cover to the left to disclose the Hi and Lo terminals.
Plug the red test lead into the Hi terminal and the black test lead into Lo
terminal.
(2
—
(3
—
Connect the tip of the red and black test leads to the positive (+) and
negative (-) sides of the circuit under test respectively. Take the reading
on the display.
2.3.2 AC Voltage Measurement
(1) Set the Function Selector switch to the "~~V " position. "AC" should be
shown on the upper left corner of the display.
(2) Slide the terminal cover to the left to disclose the Hi and Lo terminals.
Plug the red test lead into the Hi terminal and the black test lead into Lo
terminal.
(3) Connect the tip of the test leads to the circuit under test respectively. Take
the reading on the display.
NOTE
For high sensitivity, there are parts which do not indicate "0".
IM CL150 5
2.2.1 AC Current Measurement (Normal Mode)
(1) Set the Function Selector switch to the "~~ 400A" or "~~ 2000A" position.
"AC" should be shown on the upper left corner of the display.
(2) Press the open/close lever to open the transformer jaws and clamp them
onto the conductor under test, then take the reading on the display. The
most accurate reading will be obtained by keeping the conductor at the
center of the transformer jaws.
NOTE
e During current measurement, keep the transformer jaws fully closed.
Otherwise, accurate measurement cannot be made. The maximum
measurable conductor size is approx. 54.5mm in diameter.
e The transformer jaws may buzz when measuring large current. This has
no effect on the instrument's performance or safety.
2.2.2 Peak Current Measurement (Peak Mode)
(1) Set the Function Selector switch to the "~~400A" or "~~ 2000A" position.
(2) Press the button once to enter from the normal mode to the
PEAK mode. "QT" should be shown on the display.
Press the open/close lever to open the transformer jaws and clamp them
onto the conductor under test. Then, press the button.
—
(3
—
(4
—
The display shows the current's crest value divided by the square root of
two. Therefore, when the current is sinusoidal, the reading equals RMS
value.
(5) To reset the display, press the button.
INPUT Current A /\ |»
VAL
Peak Hold
Vo 2
(6) After the measurement is over, press the button to return to the
normal mode.
NOTE
e In the Peak measurement mode, the data hold feature is disabled.
e In the Peak measurement mode, the response time is 10ms.
4 IM CL150
3.3 OUTPUT imF (--400A Tf-14--2000A 0 7+1 FA TT RE
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10 IM CL150
2. Measurement
2.1 Preparation for Measurement
CAUTION
e The jaw section is a delicate, precision sensor. Do not subject the jaw to
unreasonably strong shock, vibration, or force when using it.
e |f dust gets into the tops of the jaws, remove it immediately. Do not close
the jaws when dust is trapped in its joints as the sensor may break.
Please check that the function and mode are set to the desired setting
before measurement.
2.2 Current Measurement
WARNING
e Do not make measurement on a circuit above 750VDC. This may cause
shock hazard or damage to the instrument or equipment under test.
e Do not make current measurement with the test leads connected to the Hi
and Lo terminals.
e When measuring current is not less than 1000A, make sure to stop
measurement within the maximum measuring time shown below.
Otherwise, transformer jaws may heat to cause a fire or deformation of
molded parts, which will degrade insulation.
1000 to 1500A : 15min. 1500 to 2000A : 5min.
eo Keep your fingers and hands behind the barrier during measurement.
IM CL150 3
AI Q/
(ACA/ACV) Display |(Resistance/Continuity) | Display
Normal Resistance Q
| ||
Реак | PEAK | Continuity *)))
check
(6) Button : Reset the measurement in peak mode.
(7) LCD Display : Field effect type of liquid crystal display with maximum
counts of 4000. Function symbols and decimal point are controlled by the
microprocessor based on the selected function and measuring mode.
AC DC
\ / Data Hold
coc E |
Negative sign Уать an an <= ko Resistance
ax A | El il у Voltage
Continuity gr LILLY A Current
check
> ESN
Low battery warning Peak mode
(8) Terminal Cover : Slides over Hi and Lo Terminals to prevent access to
them when OUTPUT terminal is in use.
(9) OUTPUT Terminal (For "~~400A" or "~~2000A" range only) : Provides
DC voltage output in proportion to the AC or DC current reading. The
output is connected to a recording device such as a chart recorder for long
hour monitoring. No output is available on voltage and resistance ranges.
(10) Lo Terminal : Accepts the black test lead for voltage or resistance
measurement.
(11) Hi Terminal : Accepts the red test lead for voltage or resistance
measurement.
(12) Safety Hand Strap : Prevents the instrument from slipping off the hand
during use.
(13) Test Leads (Model 98011) : Connected to Lo and Hi terminals for voltage
or resistance measurement.
(14) Output Plug (Model 98012) : Plugs into the OUTPUT terminal for
connection to a recording device. (See section 3.3, OUTPUT Terminal.)
(15) Barrier : It is a part providing protection against electrical shock and
ensuring the minimum required air and creep age distances.
2 IM CL150
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IM CL150 11
5. {LF 1. Instrument Layout
НН:
O NE SEA + UTEE (23E5%, 45-75%RHIZ6117)
MEM ~ 400A, ~2000A
> M == Arb 73 La N tte à | TE RE
Lov | arm | AMB MEE (EA) TT P
+1.0% rdg +3dgt (50/60Hz)
400A 10~400.0A ОЛА +2.0% rdg +3dgt (40~1kHz) SET a
0~1000A +1.0% rdg +3dgt (50/60Hz)
2000A |1000—1500A 1A +3.0% rdg +3dgt (40~1kHz) 15% \
1500—2000A +3.0% rdg (50/60Hz) 5% (14)
THREE ~V GUYYA—H)
Loo AE EC FREE MEE (BREE)
40V |0-40.00V 0.01V
2007 1150400 0v y +1.0% rdg +2dgt (50/60Hz)
+1.5% rdg +3dgt (40~1kHz)
750V |150-750V 1V
PÉAIRRE(E 4OV ИУ, КБ МЕБ АН МО
BREE ===V_ (В ЭЙ - |)
Loo ¡A TE #0 FE 7) HERE RES (EEE)
40V 0 +40.00V 0.01V
400V |+15.0-+400.0V 0.1V +1.0% rdg +2dot
1000V |+150—+1000V 1V
INÉRIRÉE(X OV VYD, ADTYÉ—SUVARS) 1MQ
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Bin Q 4 УМ |) (13)
Loo ¡A TE #0 FE 7) HERE RES (EEE)
40009 l0-400.09 0.10 (1) Transformer Jaws : Pick up current flowing through the conductor.
4k Q 0.15~4.000k Q 10 (2) Open/Close Lever : Operates the transformer jaws. Press to open the
+1.5% rdg +2dgt
40kQ |1.50-40.00kQ 10Q Transformer Jaws.
400kQ |15.0-400.0kQ 10052 (3) Function Selector Switch : Selects ranges. Also used to power the
ERIAREIZ 400QL VY, BEF Tv IE— FE 400QL VY ETE
instrument on.
50+ 35QU RTT HH —IRE)
(4) Data Hold Button : Freezes the display reading. " 0)" is shown on the
a DR display when Data Hold is enabled.
OUTPUT ins (RE RL VY) (5) Mode Selector Button : On a AC current ("~~ 400A" or
DCHD Xmië 1000 [Cx LT 100.0mV (EH YE —9 7 2% 10kQ)
—— CRE "~~ 2000A" or the resistance (/*))) range. Press the mode button to
Loo tH 71 BFE / AI EE 46 fief (BRIER) cycle through the measurement modes. The instrument is initially set to
400A |0~400.0mV/0~400A e rdg +0.5mV (50/60H7) the normal mode and can be switched to peak or continuity check mode by
22.5% rdg_0.5mV 40 TkHz) means of the mode button
0~150.0mV/0~ 1500A +1.5% rdg +0.5mV (50/60Hz)
2000A +3.5% rdg +0.5mV (40-1kHz)
150.0~200.0mV/1500~2000A | +3.5% rdg (50/60Hz)
12 IM CL150 IM CL150
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EN 610101
EN 61010-2-031, EN61010-2-032
AIENTIUTI 600V, AIENTIUT 1000V,
SRE 2 EN
EN 61326, EN 55022
NET 2-71 EN 61000-4-3
1/00
PIE GT) 7977979
IM CL150
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BEAT —X 12 : 93034 116
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14 IM CL150
Measurement category | (CAT.I):
Signal level, special equipment or parts of equipment, telecommunication, electronic
etc., with smaller transient over-voltages than CAT.II.
Measurement category II (CAT.II)
Local level, appliance, portable equipment etc., with smaller transient over-voltages
than CAT.III.
Measurement category III (CAT.III):
Distribution level, fixed installation, with smaller transient over-voltages than CAT.IV.
CAUTION
e Always make sure to insert each plug of the test leads fully into the
appropriate terminal on the instrument.
Make sure to remove the test leads from the instrument before making
current measurement.
When the instrument will not be in use for a long period of time, Place it in
storage after removing the battery.
Use a damp cloth and detergent for cleaning the instrument. Do not use
abrasives or solvents.
Be sure to set the Function Selector switch to the "OFF" position after use.
NOTE
e Radiation immunity affects the accuracy of CL150 testers under the
conditions specified in EN 61000-4-3.
e If equipment generating strong electromagnetic interference is located
nearly, the testers may malfunction.
IM CL150
НОС
y WARNING SIRENA ZE THEN TINEO, H—-25 LOBA
e Never make measurement on a circuit above 750V AC or 1000V DC. DENT SNA POE CHAD, SEL ENLVTELNE
e Do not use the instrument in an atmosphere where any flammable or RFT ЗЕВС ЕВ ИО КТ.
explosive gas is present. 3H, BMEBOFRMBREITMABLD 1 FETT,
Do not attempt to make measurement in the presence of flammable
gasses, fumes, vapor or dust. Otherwise, the use of the instrument may
cause sparking, which can lead to an explosion. = SIE =
e Avoid using the instrument if it has been exposed to rain or moisture or if
your hands are wet. XA №
eo Do not exceed the maximum allowable input of any measurement range. GSX
e Never open the battery compartment cover when making measurement. EZ, CL1 50 RELE
e Do not use the instrument if there is any damage to the casing or when the 7
casing is removed. {WESER SCHE ACH
e Do not turn the Function Selector switch with plugged in test leads и H xl ФЕ
connected to the circuit under test.
e Do not install substitute parts or make any modification to the instrument. EAN
Return the instrument to Yokogawa Meters & Instruments or your SEALE RT DZ AOL DE BEC SKEET SAD 5 7 ATED
distributor for repair or re-calibration. AO me EEE ° ATT LO AA
БОКСЕ ОЗЕРОВ СКК,
Always switch off the instrument before opening the battery compartment OEM FRE, ES: TE LAN IC OR
cover for battery replacement. LD ME OEM LET,
OEL HAN OA, EEE OFT LER A
(This warranty is valid only in Japan.)
PREESE
BL, FREE Z 43 DATE EDS LA DRAE L ES,
СЫ
IN WARNING
To avoid damage to the instrument or electric shock!
The restrictions on the maximum voltage level for which the CL150 testers
can be used, depend on the Measurement categories specified by the safety (1) FREE Ze Bd > 35 7 ER ME BL 7 dis,
standards. These category specifications are formulated to protect operators (2) BIMBA - 2 7- Hb ME E SZ 5 MS,
against transient impulse voltage in power lines. (3) EME DEIS LU E APELADA.
(4) SB L<I SAN EME L7- AA DECIS E 7 [INS EE CELA] 2 ME
(5) XKÁ + KE - MEC DMDKÍ 26D ECEDIR AN AREA DERE ОБЕ,
Maximum Allowable Input (6) Z DH BALD FAT: & Fri SAREE,
Function MEASUREMENT MEASUREMENT AL
CATEGORY Il CATEGORY III
AA AC 2000A rms AC 2000A rms BA TEA TAN RÉ BAL
Measuring circuit voltage : Measuring circuit voltage : itl 42— RES Ba © 042-534-1456
AC 750V rms AC 600V rms YOKOGAWA 190-8586 BRIT#BIL/ITHRET 6-1-3 УЖЕ), 2 БВ
ON, === AC 750V rms/DC 1000V
inal-to- AC 600V /DC 600V
me na to-ground | Ac 750v rms/DC 1000V © rms/DC
il IM CL150 IM CL150 15
Contents
mM Precautions for Safety Use of the Instrument |
1.
2.
Instrument Layout 1
Measurement 3
3
3
21 Preparation for Measurement
22 Current Measurement
2.2.1 AC Current Measurement (Normal Mode) ----------------------- 4
2.2.2 Peak Current Measurement (Peak Mode) ----------------------- 4
23 Voltage Measurement 5
2.31 DC Voltage Measurement 5
2.32 AC Voltage Measurement 5
24 Resistance Measurement 6
24.1 Resistance Measurement (Normal Mode) ----------------------- 6
2.4.2 Continuity Check (4002 range fixed) 6
. Other Functions 8
3.1 Sleep Function 8
3.2 Data Hold Function 8
3.3 OUTPUT Terminal (For current measurement only) -------------------- 9
3.4 Optional Accessories 10
. Battery Replacement 11
. Specifications 12
. Calibration and After-sales Service 15
mM Precautions for Safe Use of the Instrument
When handling the instrument, ALWAYS observe all of the cautionary notes
on safety given below. Yokogawa Meters & Instruments Corporation is not at
all liable for damage resulting from misuse of this product by the user that is
contrary to these cautionary notes.
Various symbols are used on the instrument and in this manual to ensure the
product is used safety and to protect operators and property from possible
hazards or damage. The following safety symbols are used where
appropriate. Read the explanations carefully and familiarize yourself with the
symbols before reading the text.
The instrument and this manual use the following safety symbols:
Danger! Handle with Care.
This symbol indicates that the operator must refer to an explanation
in the User's Manual in order to avoid the risk of personal injury or
death and/or damage to the instrument.
O Double Insulation
This symbol indicates double insulation.
~~ AC Voltage/Current
This symbol indicates AC voltage or current.
DC Voltage/Current
This symbol indicates DC voltage or current.
_L Ground
a This symbol indicates ground (earth)
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.
WARNING
Indicates that there is a possibility of serious personal injury or loss of life if
the operating procedure is not followed correctly and describes the
precautions for avoiding such injury or loss of life.
CAUTION
Indicates that there is a possibility of serious personal injury of damage to the
instrument if the operating procedure is not followed correctly and describes
the precautions for avoiding such injury or damage.
NOTE
Draws attention to information essential for understanding the
operation and features.
IM CL150 |