YOKOGAWA 2014 00 Скачать руководство пользователя страница 7

—  3  —

IM 2013-01

使用法

1. 

2013

2014

は,可動鉄片形計器で,主に商用周波数の電流,電

圧測定に適しています。

  この計器は,ひずみ波交流に対しても指示誤差は極めて小さく

第 3 高調波を 30%含んだ場合でも± 0.2%以下です。

2.  4 種測定範囲の電流計および 13 種測定範囲の電流電圧計では,

CT または VT を内蔵していますので,直流分を含む交流に対し
ては直流分を指示しないばかりでなく,直流励磁により大きな
指示誤差を生じることがありますからご注意ください。

3.  計器は,磁気シールドを施してありますが,大電流の流れてい

るケーブルや母線の近くで使用しますと外部磁界の影響をうけ
ることがありますので,できるだけ離れた位置で使用してくだ
さい。また接続導線は,寄り合せてから接続してください。

  一例として,1000  A が流れている導体から 1 m 離れた位置で

約 0.3%の指示変化を生じることがあります。

DIRECTIONS

1.  The instruments are moving-iron type meters used for measuring AC 

current or voltage at commercial frequencies. 

 

The reading given on the instrument’s indicator for measurements of 
distorted alternating 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 however, due to DC 

magnetization in the transformer. In such cases, the use of a 2-range 
ammeter  or voltmeter is recommended. 

3.  The instruments are magnetically shielded and should therefore be 

kept away from cables or buses containing large current flows, during 

measurement. The indication may vary by up to 0.3% when the 
instrument is used at a distance of 1 m from a straight lead-wire that 

has a 1000 A current flowing through it. 

Содержание 2014 00

Страница 1: ...User s Manual 2013 2014 2017 Portable AC Ammeters Voltmeters 2013 14 2014 00 2017 30 IM 2013 01 2018 3 8 8th Edition March 2018...

Страница 2: ...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...

Страница 3: ...t 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 where the inst...

Страница 4: ...ed 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 c...

Страница 5: ...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 Hand...

Страница 6: ...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 ima...

Страница 7: ...3 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 signifi...

Страница 8: ...hort 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 volt...

Страница 9: ...5 IM 2013 01 Fig 3 Fig 4 2241 Current Transformer Primary 2261 Voltage Transformer Primary...

Страница 10: ...ox 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 thi...

Страница 11: ...cale 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...

Страница 12: ...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...

Страница 13: ...0 100 200 mA 0 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...

Страница 14: ...5 30 50 75 V 100 200 300 500 V 3300 6600 V Secondary Burden 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 c...

Страница 15: ...Printed in China...

Отзывы: