YOKOGAWA 2038 Скачать руководство пользователя страница 6

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IM 2038-01

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

付けは確実に行ってください。

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 the instrument 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 

range and polarities. When wiring, securely fasten the terminals.

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, clean it gently with a dry soft cloth.

Содержание 2038

Страница 1: ...User s Manual 取扱説明書 2038 携帯用周波数計 Portable Frequency Meter IM 2038 01 2018 3 5 版 5th 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: ...instruction manual to draw attention to the necessary safety precautions WARNING To avoid injury or death to personnel 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 or plu...

Страница 4: ...修理いたします Warranty The 2038 instruments are shipped only after stringent in house inspection Should the instrument suffer damage that is attributable to improper manufacture or an accident during transport contact 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 deli...

Страница 5: ... a portable instrument that performs frequency to DC current conversion It does this by combining a differential transducer with a DC current meter in order to read frequencies directly Its indicator uses taut band suspension making it more resistant to vibration and shock and as a result far superior to conventional frequency meters Fig 1 さげ手 Handle 指針 Pointer 測定端子 Terminal 目盛板 Dial ミラー Mirror 計器...

Страница 6: ...ay keep them as far away from each other as possible 4 Before wiring any of these instruments carefully check the measuring range and polarities When wiring securely fasten the terminals 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 y...

Страница 7: ... measuring instrument 2 The voltage input range of 120 V terminal is 50 to 135 V and the voltage input range of 240 V terminal is 130 to 300 V The input range is indicated on the scale plate If it is higher than 300 V connect a voltage transformer 3 When the power source is cut off the pointer deflects to the negative side of the scale This is not an abnormal phenomenon but rather an expected reac...

Страница 8: ...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 how frequently the instrument is used and the conditions under which it is op...

Страница 9: ...els operated on a source voltage of 50 to 135 V 240 V for models operated on a source voltage of 130 to 300 V Deflection Angle Approx 85 Scale Length Approx 135 mm Scale Division See the table on the next page Insulation Test More than 10 MΩ at 500 VDC between the circuit and case Voltage Test 2000 VAC for 5 seconds when measured between the circuit and case Operating Temperature and Humidity Rang...

Страница 10: ... 65 Hz 20 100 Hz 100 300 Hz 300 500 Hz 45 55 Hz 55 65 Hz 測定範囲 Measuring Range 0 2 1 0 0 5 0 5 0 2 0 2 精度階級 Accuracy 100区分 0 2 Hz div 100区分 1 Hz div 100区分 2 Hz div 100区分 2 Hz div 100区分 0 1 Hz div 100区分 0 1 Hz div 目盛区分 Scale Division 120 V Range Approx 1 3 VA 240 V Range Approx 2 VA 120 V Range Approx 1 3 VA 240 V Range Approx 2 VA 消費電力 Power Consumption アクセサリ Accessories 計器用変圧器 0 2級 Voltage Transfo...

Страница 11: ...Printed in China ...

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