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User's

Manual

CL155

Clamp-on Tester

クランプテスタ

IM CL155

保証書付

IM CL155

2021.11

11

版（

KYOU

）

1
2
3
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Summary of Contents for CL155

Page 1: ...User s Manual CL155 Clamp on Tester クランプテスタ IM CL155 保証書付 IM CL155 2021 11 11版 KYOU ...

Page 2: ... 4 2 3 Voltage Measurement 5 2 3 1 DC Voltage Measurement 5 2 3 2 AC Voltage Measurement 5 2 4 Resistance Measurement 6 2 4 1 Resistance Measurement Normal Mode 6 2 4 2 Continuity Check 400Ω range fixed 6 3 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 1 0 4 Battery Replacement 1 1 5 Specifications 1 2 6 ...

Page 3: ...o avoid the risk of personal injury or death and or damage to the instrument 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 Ground This symbol indicates ground earth This symbol Indicates that this instrument can clamp on bare conductors when measuring a voltage ...

Page 4: ...fication to the instrument Return the instrument to Yokogawa M C or your distributor for repair or re calibration Always switch off the instrument before opening the battery compartment cover for battery replacement Do not use the test leads that have deteriorated or are detective Check the test leads continuity WARNING To avoid damage to the instrument or electric shock The restrictions on the ma...

Page 5: ... the appropriate terminal on the instrument Make sure to remove the test leads from the instrument before making current measurement Be sure to set the Function Selector 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 battery Using this instrument is limited to under residential commercial and light indust...

Page 6: ...ts ranges Also used to power the instrument on 4 Data Hold Button Freezes the display reading is shown on the display when Data Hold is enabled 5 Mode Selector Button On a AC current 400A or 2000A or the resistance range Press the mode button to cycle through the measurement modes The instrument is initially set to the normal mode and can be switched to peak or continuity check mode by means of th...

Page 7: ...DC voltage output in proportion to the AC or DC current reading See section 3 3 OUTPUT Terminal 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 meas...

Page 8: ... before measurement 2 2 Current Measurement WARNING Do not make measurement on a circuit above 750VDC This may cause shock hazard or damage to the instrument or equipment under test Do not make current measurement with the test leads connected to the Hi and Lo terminals When measuring current is not less than 1000A make sure to stop measurement within the maximum measuring time shown below Otherwi...

Page 9: ...ws 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 should be shown on the display 3 Press the open close lever to open the transformer jaws and clamp them onto the conducto...

Page 10: ...ck test lead into Lo terminal 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 terminal...

Page 11: ... 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 400Ω range fixed The continuity check mode is enabled by pressing the button on resistance range and Ω is indicated on the display to s...

Page 12: ...t the tip of the test leads and check whether the display reads 0 5 Connect the tip of the test leads to the circuit under test If the resistance is 50Ω or less the buzzer beeps 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 ...

Page 13: ...is shown on the display This disables the sleep function and enables continuous use of the instrument NOTE Connecting the plug to the OUTPUT terminal disables the Sleep function The function is enabled on removing the plug from the terminal 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 th...

Page 14: ...ad so that the output voltage can be connected to a recording device such as a chart recorder 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 Output voltage is 1mV A on the ...

Page 15: ...bility 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 CL155 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 CL155 and multiply ...

Page 16: ...ndicated in battery compartment If the battery voltage becomes too low for the instrument to operate normally is shown on the display Then replace the battery Note that when the battery is completely exhausted the display blanks without 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 obs...

Page 17: ...ange Resolution Accuracy 40V 0 to 40 00V 0 01V 1 0 rdg 2dgt 50 60Hz 1 5 rdg 3dgt 40 to 1kHz 400V 15 0 to 400 0V 0 1V 750V 150 to 750V 1V Conversion method AC coupled true rms responding calibrated to the rms Initially set to the 40V range Input impedance is about 1MΩ DC Voltage V Auto ranging Range Measuring range Resolution Accuracy 40V 0 to 40 00V 0 01V 1 0 rdg 2dgt 400V 15 0 to 400 0V 0 1V 1000...

Page 18: ...ng System Dual integration Measurement Function AC current DC current AC voltage resistance continuity check Display Liquid crystal display with maximum counts of 3999 Overrange Indication OL is shown on the display Response Time Approx 2 seconds Temperature and Humidity for Guaranteed Accuracy 23 5 relative humidity 45 to 75 without condensation Operating Temperature and Humidity 0 to 40 relative...

Page 19: ...2 indoor use altitude 2000m or less EMC Standard EN 61326 1 Class B Table 1 EN 61326 2 2 EN 55011 Class B Group 1 Environmental standard EU RoHS Directive compliant For conformity to environmental regulations and or standards other than EU contact your nearest YOKOGAWA office PIM113 01Z2 Accessories Test leads Model 98072 1set R6P batteries 2 Carrying case Model 93034 1 User s Manual 1 Optional Ac...

Page 20: ...quipment WEEE EU WEEE Directive valid only in the EEA and UK WEEE Regulation in the UK This product complies with the WEEE marking requirement This marking indicates that you must not discard this electrical electronic product in domestic household waste When disposing of products in the EEA or UK contact your local Yokogawa office in the EEA or UK respectively EEA European Economic Area ...

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