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Hioki 9754 Скачать руководство пользователя страница 15

11

2.1 Measurement Procedure

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2.1 Measurement Procedure

1.

Turn on the power of the instrument being
connected to the 9754 CLAMP ON NOISE
SENSOR.

2.

Connect the BNC connector of the 9754 CLAMP
ON NOISE SENSOR to the input terminal of the
instrument being connected to.

3.

Measurement settings are made on the instrument
being connected to.

Check the settings of the instrument being connected to.

4.

Pull the slider on the sensor to open the clamp.

Turn until it clicks

Line up

Line up

(1)

(2)

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Содержание 9754

Страница 1: ...EN 9754 CLAMP ON NOISE SENSOR Instruction Manual May 2015 Revised edition 3 9754A981 03 15 05H ...

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Страница 3: ...t Overview 9 1 2 Names and Functions of Parts 10 Chapter 2 Measurement 11 2 1 Measurement Procedure 13 2 2 Disconnecting the NOISE SENSOR 15 2 3 When Connecting to Instruments other than the 3145 20 16 Chapter 3 Specifications 19 Chapter 4 Maintenance and Service 23 4 1 Cleaning 23 4 2 Troubleshooting 24 索引 4 3 2 1 7 6 5 10 9 8 9754A981 03 ...

Страница 4: ...Contents ii ...

Страница 5: ...9754 CLAMP ON NOISE SENSOR can also be connected to other waveform measuring equipment and used to monitor waveforms and current Be sure to read and follow all safety precautions included in the instruction manual of whichever measuring instrument you use When you receive the instrument inspect it carefully to ensure that no damage occurred during shipping If damage is evident or if it fails to op...

Страница 6: ...the instrument Be certain that you understand the instructions and precau tions in the manual before use We disclaim any responsibility for accidents or injuries not resulting directly from instrument defects Safety Symbols In the manual the symbol indicates particularly important information that the user should read before using the instrument The symbol printed on the instrument indicates that ...

Страница 7: ...result in serious injury or death to the user Indicates that incorrect operation presents a possibility of injury to the user or damage to the instrument Indicates advisory items related to perfor mance or correct operation of the instrument Symbols for various standards This symbol indicates that the product conforms to regulations set out by the EC Directive Indicates the Waste Electrical and El...

Страница 8: ...nsation Accuracy guarantee for temperature and humidity 23 5 C 73 9 F 80 RH or less no condensation Operating Precautions Preliminary Checks Operating Environment Avoid the following locations that could cause an accident or damage to the instrument Exposed to di rect sunlight Exposed to high temperature In the presence of corrosive or explosive gases Exposed to liq uids Exposed to high humidity o...

Страница 9: ...ecially careful to avoid physical shock from dropping Be especially careful to avoid physical shock from dropping Keep the clamp jaws and core slits free from for eign objects which could interfere with clamping action Keep the clamp closed when not in use to avoid accumulating dust or dirt on the mating core sur faces which could interfere with clamp perfor mance To avoid breaking the cables do n...

Страница 10: ...6 ...

Страница 11: ...he conductor to be mea sured one can easily monitor noise current levels It can also be connected to the measuring instruments of other waveform measuring equipment to monitor waveforms and cur rent levels Features Easy noise current measurement with a clamp Broad frequency bandwidth 1 kHz to 100 MHz 3 dB Overview Chapter 1 1 1 Product Overview ...

Страница 12: ...lock the clamp and keep it from opening 3 Sensor head This clamps the conductor being measured and carries out the actual current measure ment It is a precision assembled compo nent including a molded section and ferrite core It may be damaged if subjected to sud den changes in ambient temperature or mechanical strain or shock and therefore great care should be exercised in handling it 4 BNC Conne...

Страница 13: ...imum continuous input range In addition to the maximum continuous input range there is also the maximum peak current value 15 Apeak product specification This indicates an upper waveform response limit of 15 Apeak Measurement Chapter 2 To avoid electrical shock be careful not to damage the insulation of the conductor being measured Do not measure around a bare conductor Doing so may result in shor...

Страница 14: ...ng Attenuation char acteristics in the low frequency area are affected by direct current or commercial frequency current levels As the current level increases magnetic saturation of the sensor magnetic core causes a decrease in amplitude and can generate wave form distortion For example with a sine wave input of 15 Apeak 15 kHz product specifications will not be met if the superimposed DC current ...

Страница 15: ...ON NOISE SENSOR 2 Connect the BNC connector of the 9754 CLAMP ON NOISE SENSOR to the input terminal of the instrument being connected to 3 Measurement settings are made on the instrument being connected to Check the settings of the instrument being connected to 4 Pull the slider on the sensor to open the clamp Turn until it clicks Line up Line up 1 2 ...

Страница 16: ...ut rate of this device is 0 1 V A When using a general purpose waveform monitoring instrument derive the current sensitivity from the voltage sensitivity For example if the waveform measurement instrument s volt age sensitivity is 100 mV division the current sensitivity is 1 A division Make sure that the cur rent direction indicator ar row matches the direction of current flow on the con ductor be...

Страница 17: ...he electric current is lower than the consecutive maximum current elec tric currents in both sides will heat up the wires and raise the temperature thereby causing damage to the sensor 2 2 Disconnecting the NOISE SENSOR To avoid damaging the device always open the clamp by using the slider When disconnecting the BNC connector be sure to release the lock before pulling off the connector Forcibly pu...

Страница 18: ...d to waveform measuring equipment other than the 3145 20 NOISE HiLOGGER and used to monitor current waveforms Please care fully read the instruction manual included with whichever instrument you connect to and follow all safety precautions 2 3 When Connecting to Instruments other than the 3145 20 ...

Страница 19: ...struments which are constructed with double insulation and use a protective earth Confirm that basic insulation which meets the measurement category working volt age and pollution degree of the circuit being tested is used to isolate the other measurement terminals of the instrument being connected to If you are not sure basic insulation is used between the terminals of the measurement device do n...

Страница 20: ...age will be applied to the ground side terminal and chassis and to the 9754 CLAMP ON NOISE SEN SOR and can cause electrical shock short circuits or damage If using BNC banana plug or other adapters to connect to input terminals other than BNC con nectors make sure the polarity is correct At high frequencies common mode noise may affect measurements taken on the high voltage side of circuits As nec...

Страница 21: ... the clamp opening Frequency characteristics typical charac teristics p 19 Maximum rated current AC10 A Derating according to frequency p 19 Under typical conditions Varies according to sine wave input Maximum peak current value 15 Apeak Output voltage rate 0 1 V A Amplitude accuracy 3 0 rdg 0 001 f s With an f s of 10 A Where f 15 kHz in the center of the clamp opening 1 mA or greater input is ma...

Страница 22: ...re and humidity 0 to 40 C 32 to 104 F 80 RH or less no condensation Storage temperature and humidity 10 to 50 C 14 to 122 F 80 RH or less no condensation Operating environment Indoor altitude up to 2000 m 6562 feet Diameter of measurable conductors 20 mm 0 79 or less Measurable conductor Insulated conductor Cable length Sensor cable approx 2 m 6 56 feet Dimensions Sensor Approx 176W 69H 27D mm 6 9...

Страница 23: ...0000 0 100000 00 100000 000 周波数 Hz 連続最大入力電流値 A 周波数特性特性例 60 50 40 30 20 10 1 100 10000 1000000 100000000 周波数 Hz 出力 0dB 1V Frequency characteristics typical characteristics 10k 1M 100M Frequency Hz Frequency Hz Output 0dB 1V Continuous maximum input current value A 10 100 1k 10k 100k 1M 10M 100M Derating according to frequency ...

Страница 24: ... other than 20 入力インピーダンス特性例 0 001 0 010 0 100 1 000 10 000 1000 10000 100000 1000000 10000000 10000000 周波数 Hz 入力インピーダンス Ω Input impedance typical characteristics 1k 10k 100k 1M Input impedance Frequency Hz 10 1 0 1 0 01 0 001 10M 100M ...

Страница 25: ...oline as they can deform and discolor the case Maintenance and Service Chapter 4 Never modify the instrument Only Hioki service engineers should disassemble or repair the instru ment Failure to observe these precautions may result in fire electric shock or injury 4 1 Cleaning Measurements are degraded by dirt on the mating surfaces of the clamp on sensor so keep the sur faces clean by gently wipin...

Страница 26: ...ables are not open circuited before contacting your dealer or Hioki representative 4 2 Troubleshooting Pack the instrument so that it will not sustain dam age during shipping and include a description of existing damage We cannot accept responsibility for damage incurred during shipping ...

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