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Current Probe

SS-540/SS-550

Instruction Manual

Содержание SS-500

Страница 1: ...Current Probe SS 540 SS 550 Instruction Manual ...

Страница 3: ...leaning of instrument 12 Chapter 1 Overview 13 1 1 Summary 13 1 2 Features 13 1 3 Part Names 14 1 4 Part Functions 14 1 5 Specifications 16 1 5 1 Instrument specifications 16 1 5 2 Certification standards 21 1 5 3 Recommended Power Supply and Oscilloscopes 21 Chapter 2 Operation 22 2 1 Preparations for Measurement 22 2 2 Demagnetizing and Zero Adjustment 23 2 3 Measuring methods 26 ...

Страница 4: ...Contents Chapter 3 Daily check and calibration 32 3 1 Maintenance 32 3 2 Periodic Calibration 32 3 3 Inspection 33 ...

Страница 5: ...l precautions Symbols indicating the need for caution also appear on the instrument itself Symbols in this manual Warning Caution and Note Warning Indicates that failure to observe this precaution may lead to death or serious injury Caution Indicates that improper use may lead to injury or damage to the instrument Note Provides instruction or advice regarding unit functions or operation Symbols on...

Страница 6: ...nformation in this manual is subject to change without notice Unauthorized reproduction of the contents of this manual is strictly prohibited If you have any questions about this instrument contact Iwatsu office or our sales distributors Revision History April 2021 1st edition KMLA00291 ...

Страница 7: ...head part of this instrument to or from the insulating target conductor to be measured Failure to do so is very dangerous for targets to be measured that use high current Do not use this instrument to measure exposed conducting lines This may result in electric shock short circuiting or equipment damage The clamp core and shield casing are not insulated Use caution not to wet this instrument or al...

Страница 8: ...r company instruments that fit this description Do not use this instrument if the unit case is damaged This may result in electric shock If the unit case is damaged contact Iwatsu office or our sales distributors for repair Connect only the recommended power unit to this instrument Use of power units not suited may result in fire or equipment damage See 1 5 3 Recommended Power Supply and Oscillosc...

Страница 9: ... this instrument in a highly humid environment where condensation may occur If using an electric shock or fire or failure may occur Do not put on this instrument a container that water medicine etc has entered or a small metallic object If not an electric shock or fire may occur If this instrument is wet with water or metal and other objects enter the instrument immediately turn off the power supp...

Страница 10: ...e there are restrictions on power consumption in the probe power on the oscilloscope side according to the measured current Refer to page21 and page27 for details The BNC ground of this instrument is connected to an electric ground through the power supply such as PS 52 or PS 54 to prevent danger Use the equipment only for the floating measurement when executing the floating measurement When the g...

Страница 11: ...al output If this happens cut off the input immediately either by removing the sensor from the insulating target conductor to be measured or by setting the input current to zero Then wait for a sufficient amount of time for the unit to cool before resuming normal operation At high temperatures the overcurrent protection circuit in the unit may cause the protective interlock to operate at current l...

Страница 12: ... as dirt on the surface will adversely affect performance If the surface becomes dirty wipe it clean with a soft cloth or the like When removing the connector from the output terminal first unlock the connector grasp the connector and pull to remove Failure to remove the connector in this manner may damage the terminator Do not store or use this instrument in direct sunlight or in environments tha...

Страница 13: ... an electric shock fire or failure may occur Securely insert the power plug into the power supply receptacle Hold the power plug part when removing the power supply cord from the power supply receptacle Pulling on the power cord will damage the cord This may be a cause of an electric shock fire or failure For your safety remove the power plug of this instrument from the power supply receptacle mak...

Страница 14: ...This instrument may fail if a large vibration or impact is applied during transportation possibly causing a fire If you do not have a proper packing or shock absorbing material for transportation contact Iwatsu office or our sales distributors If transportation is to be handled by a forwarding agent display Contains a precision machine on each side of the packing box We recommend to order Iwatsu o...

Страница 15: ...n receiving this instrument check the packed materials while referring to the following Components If there is a missing item or an item damaged during transportation immediately contact Iwatsu office or our sales distributors Components Main unit 1 Accessories See the accessories table below Accessories table Items Quantities SS 540 Quantities SS 550 Hard case 1 Soft case 1 Instruction Manual thi...

Страница 16: ... instrument to be repaired clearly write the instrument name serial number in the label on the rear of this instrument description of the failure and the name division and telephone number of the responsible person Cleaning of instrument When you take the dirt of this instrument wipe with a soft and dry cloth or wipe with a dry cloth after you wipe with a soft cloth etc to contain water and the so...

Страница 17: ...easy to measure current waveforms by simply clamping it onto an insulating target conductor to be measured 1 2 Features Highly accurate current detection Easy current measurement Broadband frequency bandwidth SS 550 DC 100MHz SS 540 DC 50MHz Compact unit capable of measuring low current Simple protection function from excessive input Unique development by using thin film Hall element ...

Страница 18: ...se this lever to open and close the sensor head Sensor head Clamps the insulating target conductor to be measured and detects the current level The sensor head is made up of a molded part ferrite Hall element and other parts that have been precision machined and assembled Be sure to handle the sensor head carefully as it may be damaged by ...

Страница 19: ...tment dial ZERO ADJ Used to compensate for offset voltage temperature drift and the like with this instrument Rough adjustment trimmer Used only when adjustment with the zero adjustment dial is not possible Output connector Outputs the measured current waveform at a steady rate 0 1 V A The connector is plugged into the BNC input terminal on the oscilloscope Power plug This plug is inserted into th...

Страница 20: ...ns Table1 Figure1 and Figure2 indicate SS 550 instrument specifications Table2 Figure3 and Figure4 indicate SS 540 instrument specifications The following values indicate unit performance 30 minutes after the power has been turned on in an ambient environment of 23 C 5 C ...

Страница 21: ...0 C no dew condensation below the moisture of 80 RH Temperature humidity range storaged 10 C to 50 C no dew condensation below the moisture of 80 RH Location for use operating Indoor use Pollution Degree 2 and at the altitude of 2000 meters or less Accuracy warranty period 1 year Opening Closing up to 10 000 times Product warranty period 1 year Temperature characteristic of sensitivity Within 2 fo...

Страница 22: ...0 35 10 100 1k 10k 100k 1M 10M 100M Frequency Hz Maximum input current A Figure 1 Derating by Frequency SS 550 1m 10m 100m 1 10 100 1k 10k 100k 1M 10M 100M Frequency Hz Input impedance Figure 2 Input Impedance SS 550 sample characteristics ...

Страница 23: ... C no dew condensation below the moisture of 80 RH Temperature humidity range storaged 10 C to 50 C no dew condensation below the moisture of 80 RH Location for use operating Indoor use Pollution Degree 2 and at the altitude of 2000 meters or less Accuracy warranty period 1 year Opening Closing up to 10 000 times Product warranty period 1 year Temperature characteristic of sensitivity Within 2 for...

Страница 24: ...20 Chapter 1 Overview Figure 3 Derating by Frequency SS 540 Figure 4 Input Impedance SS 540 sample characteristics 10 100 1k 10k 100k 1M 10M 100M Frequency Hz ...

Страница 25: ... or PS 54 becomes unnecessary if Probe power option DS 579 Total current consumption of the current probe can be used within the range of 750mA or less of product of our company that can be used as power supply for probe Digital oscilloscope ViewGoII series that can attach DS 579 and power connector conversion cable are used together and it is possible to use them slimly and compactly If you have ...

Страница 26: ...h an oscilloscope whose input impedance is 1 MΩ or greater Measurement accuracy cannot be guaranteed if the input impedance is 50Ω 2 Set the switch of the recommended power supply to the OFF position and connect the power cord 3 Insert the power plug for this instrument into the power supply receptacle on the recommended power supply 4 Set the recommended power supply switch to the ON position and...

Страница 27: ...ompletely in about thirty minutes When conducting continuous measurement please note that the offset voltage will drift due to the ambient temperature etc 1 Set the oscilloscope input to GND and adjust the trace to the zero position 2 Set the oscilloscope input coupling to DC 3 Plug the output connector on this instrument into the input terminal on the oscilloscope and check to make sure it is loc...

Страница 28: ...a BNC terminal make sure that the polarity is correct Do not demagnetize while this instrument is clamping an insulating target conductor to be measured Demagnetizing causes current to flow into the insulating target conductor to be measured which may damage parts in the circuit to be measured Check that the insulating target conductor to be measured is not clamped when supplying power to this ins...

Страница 29: ...ss the DEMAG switch on the terminator The process takes about one second A demagnetizing waveform is output while demagnetizing is in progress 6 Turn the zero adjust dial on the terminator and adjust the trace to the zero position 7 If you were not able to adjust the trace to the zero position in the previous procedure 6 turn the rough adjustment trimmer and adjust the trace so it is within the ad...

Страница 30: ...mp the insulating target conductor to be measured so the conductor is in the center of the clamp window 4 Press the open close lever on the sensor head unit until the UNLOCK marking is not visible Check to make sure that the open close lever is locked securely and the sensor head is tightly closed 5 You may now monitor the current waveform on the oscilloscope The output sensitivity of this instrum...

Страница 31: ... Use the instrument within the range where the total of the current consumption of it is 600mA or less Refer to Figure 5 for SS 540 or Figure 6 for SS 550 Current to be measured A Figure 5 Current consumption vs current to be measured typical for SS 540 The sum total of a positive and negative current consumption Figure 6 Current consumption vs current to be measured typical for SS 550 The sum tot...

Страница 32: ... current in excess of the maximum continuous input range is applied the sensor will heat up triggering the internal protective interlock and preventing normal output If this happens immediately cut off the input either by removing the sensor from the insulating target conductor to be measured or by setting the input current to zero Then wait a sufficient amount of time for the unit to cool before ...

Страница 33: ... SS 540 Maximum continuous input range 30 Arms During non continuous input 50 Apeak When using this instrument make sure the effective value does not exceed the maximum continuous input range The specifications during non continuous input indicates that the upper limit for the response is 50 Apeak Always use the open close lever to open the sensor head Pushing up the top core with the sensor head ...

Страница 34: ... head and cause its temperature to rise leading to damage to the sensor For example when one side of a go and return conductor is clamped and the other side is also placed near the sensor head as shown in the diagram even if the electric current is lower than the consecutive maximum current electric currents in both sides will heat up the wires and raise the temperature thereby causing damage to t...

Страница 35: ...et conductor to be measured is in the center of the clamp window When measuring signals containing high frequency components the measurements may be affected if the side of the cable with high potential is clamped Always clamp the low potential side Accurate measurements may not be obtained near transformers cables carrying strong current and other objects that generate a strong magnetic field or ...

Страница 36: ...You may use the following Water or diluted neutral detergent Do not use the following Alcohol gasoline acetone lacquer ethyl alcohol paint thinner or solvents containing ketones If the sensor head gets dirty gently wipe away the dirt with a dry soft cloth or the like 3 2 Periodic Calibration This instrument must be inspected and calibrated periodically to ensure that signals are measured correctly...

Страница 37: ...e current probe completely closed connect this instrument SS 540 or SS 550 to the oscilloscope and press the DEMAG switch Immediately after the switch is pressed a sine wave of approximately 300 mVp p will be output gradually becoming attenuated and stopping after a few seconds Check to make sure that this occurs 4 Turn the zero adjustment dial and check to make sure that the trace is at the zero ...

Страница 38: ...verseas Sales Sect Sales Dept No 2 Address 1 7 41 Kugayama Suginami ku Tokyo 168 8501 Japan Phone 81 3 5370 5483 Facsimile 81 3 5370 5492 Web Site http www iti iwatsu co jp index_e html E mail info tme iwatsu co jp ...

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