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IM 2013-01

取扱法および使用上の注意

1.  計器は,直射日光の当たる場所,外部磁界のある場所,振動の

ある場所,あるいは高温高湿な環境では使用しないでください。

2.  計器は,常に水平位置(標準姿勢)で使用してください。
  このとき最も正確な指示が得られます。
3.  多数の計器を並べて使用するときは,でき得る限り離して使う

ようにしてください。

4.  計器の結線に先だち測定範囲,極性等をよく確認し,端子の締

付けあるいはプラグの締付けは確実に行ってください。

  また大電流の測定時には,その接続導線の電流容量にも注意を

はらい十分太い線で行ってください。

5.  測定に入る前に指針が目盛の零位に一致していることを確かめ

ます。もし一致していなければ零位調整器を左右に回して合わ
せます。ミラーに映った指針の像と指針とが一致する目の位置
で行ってください。ただし,指針の曲がりで零位から外れたも
のは,誤差の原因となりますので,零位調整器で合わせないよ
うにしてください。

6.  計器に,その最大目盛値以上の値をみだりに加えないよう注意

してください。測定値があらかじめ予測できない場合には最も
大きい測定範囲から順次下位に換えて測定してください。

7.  測定の精度を高めるために計器の指示はなるべく最大目盛値か

らその 1/2 の間の目盛で読みとれるような測定範囲の計器を選
びます。

8.  測定中に計器の窓ガラスの表面を乾いた布で強く拭きますと静

電気のため指示が変化することがありますので避けてください。
特に乾燥期にはご注意ください。

  表面の汚れは,乾いた布で軽く拭きとってください。

OPERATING INSTRUCTIONS

1.  Do not use these instruments in a location exposed to direct sunlight, an 

external magnetic field or mechanical vibration or in a high-temperature 

highly humid environment.

2.  Place the instrument on a fairly level surface. 
 

A horizontal position will give the highest accuracy.

3.  When using a number of these instruments in an array, keep them as far 

away from each other as possible.

4.  Before wiring any of these instruments, carefully check the measuring 

ranges and polarities. When wiring, securely fasten the terminals and 
plugs. When a large current needs to be measured, use wire that is both 

thick enough and has sufficient current-carrying capacity.

5.  Before measurement, check that the pointer coincides exactly with the 

zero scale point. If it does not turn the zero adjust screw provided on 
the meter cover until the pointer meets the zero scale point.

 

Position your eye so that the mirror image of the pointer coincides with 
the actual pointer. However, if the pointer is off from the zero scale 
point because the pointer is bent, do not adjust using the zero adjust 
screw because this will lead to errors.

6.  Be careful not to apply an unreasonably large current or high voltage to 

the instrument.

7.  For the optimum instrument accuracy, select a measuring range such 

that the indication may be read in the top half of the scale.

8.  Try not to apply too much force when wiping the glass window surface 

of the instrument during measurement. Doing so may result in a 
deviation in the indication due to static electricity. 

 

This is especially true when the instrument is used in a dry season.

 

If the surface is dirty, gently clean it using a dry, soft cloth.

Содержание 2013 14

Страница 1: ...User s Manual 取扱説明書 2013 2014 2017 携帯用交流電流計 電圧計 Portable AC Ammeters Voltmeters 2013 14 2014 00 2017 30 IM 2013 01 2018 3 8 版 8th Edition March 2018 ...

Страница 2: ...f operation service and repair of this instrument Failure to comply with these precautions or with specific WARNINGS given elsewhere in this manual violates the safety standards of the design manufacture and intended use of the instrument YOKOGAWA assumes no liability for the customer s failure to comply with these requirements This manual is part of the product and contains important information ...

Страница 3: ...el and damage to the instrument be sure to comply with the following Make sure that the source voltage is not alive before you attempt to connect the instrument to the circuit Once you have connected the instrument to the circuit tighten the terminals Never touch the terminals of plug holes when operating the instrument Never open the case or cover when operating the instrument In an application w...

Страница 4: ...ontact the sales representative from which you purchased the product or your nearest YOKOGAWA sales office All products of YOKOGAWA are guaranteed for a period of one 1 year from the date of delivery YOKOGAWA will repair the product in question free of charge if the product fails during the guarantee period for reasons that are evidently attributable to YOKOGAWA 目次 本器を安全にご使用いただくために i 概 要 1 取扱法および使...

Страница 5: ...taut band suspension system is used in all YOKOGAWA portable AC volt ammeters This system has no pivot and jewel bearings so these portable instruments are frictionless and thoroughly resistant to shock and vibration Fig 1 さげ手 Handle 指針 Pointer 測定端子 Terminal 目盛板 Dial ミラー Mirror 計器カバー Cover 零位調整器 Zero Adjust Screw ...

Страница 6: ...her as possible 4 Before wiring any of these instruments carefully check the measuring ranges and polarities When wiring securely fasten the terminals and plugs When a large current needs to be measured use wire that is both thick enough and has sufficient current carrying capacity 5 Before measurement check that the pointer coincides exactly with the zero scale point If it does not turn the zero ...

Страница 7: ...ating current only contains a small amount of error Even if the wave comprises a third harmonic content of as large as 30 the error is only within 0 2 2 The 4 range ammeter and 13 range voltmeter are provided with built in current and voltage transformers Note that when measuring an AC that has a DC component these instruments do not indicate the DC component at all A significant error will result...

Страница 8: ... 5 When using a current transformer do not open the secondary circuit because this induces a dangerously high voltage Short circuit the secondary terminals of the current transformer or close the short circuit switch if the transformer is provided with such a switch before changing the instruments 6 To measure AC voltages higher than 750 V use the 2014 instrument or the 150 V 2013 instrument with ...

Страница 9: ... 5 IM 2013 01 Fig 3 Fig 4 計器用変流器 一次側 2241 Current Transformer Primary 2261 計器用変圧器 一次側 Voltage Transformer Primary ...

Страница 10: ...measure a wide range of current frequencies from commercial frequencies to audio frequencies approx 10 kHz 2 The 2017 voltmeter has 4 measuring ranges and designed to indicate mean values of sine waves received from the rectifier circuit in terms of root mean square values on an rms scale For this reason the voltmeter produces errors due to distortion in waveforms Care must be taken since the inst...

Страница 11: ...e instrument to become doubtful check several scale points and compare these readings with an instrument which has been properly calibrated If the accuracy of the instrument is found to differ from its rating recalibrate the instrument Ideally the instrument should be calibrated once or twice every three months though this depends on the instrument s frequency of use and operating conditions アフターサ...

Страница 12: ...ier type Operating Temperature and Humidity Range 0 to 40 C 25 to 80 RH Storage Temperature and Humidity Range 10 to 50 C 25 to 80 RH Rated Frequency 2013 01 2013 03 2013 04 2013 06 to 2013 19 2014 2017 50 60 Hz 2013 02 2013 05 2013 20 to 2013 22 50 60 Hz 2013 23 to 2013 27 400 Hz Rated Accuracy 2017 45 Hz to 10 kHz Deflection Angle Approx 85 Scale Length Approx 135 mm Insulation Test Between elec...

Страница 13: ...1 0 2 0 5 1 A 0 5 1 2 5 A 2 5 10 20 A 10 20 50 100 A 0 4 0 3 0 2 0 3 VA 0 2 0 3 0 4 0 5 VA 0 7 0 6 0 5 0 3 VA 0 5 0 3 0 6 0 9 VA 0 6 0 9 1 7 2 4 VA 15 16 17 18 19 15 30 V 30 75 V 75 150 V 150 300 V 300 750 V 3 8 VA 0 5 1 2 5 A 400 Hz用 2 5 10 20 A 400 Hz用 10 20 50 100 A 400 Hz用 75 100 V 400 Hz用 150 300 V 400 Hz用 2013 20 計器用変流器外付用 5 A For use with an external CT 5 A 0 22 VA 2013 21 計器用変圧器外付用 150 V F...

Страница 14: ...0 50 75 V 100 200 300 500 V 3300 6600 V 二次 Secondary 定格負担 Burden 計器用変圧器 0 2 Note 1 The maximum line voltages are as follows 2241 3450 V 2242 6900 V 2244 2243 250 V Note 2 The instruments also have the following characteristics 2241 and 2242 Equipped with screw terminals for the 10 A 15 A 30 A 50 A and 100 A measuring ranges and with through hole terminals for the 250 A 300 A 500 A 750 A and 1500 A...

Страница 15: ...Printed in China ...

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