另类淫荡p

産品分類展示

絕緣電阻表檢定裝置

查看全部産品

您現在位置：産品中心>>絕緣電阻表檢定裝置>ZX38A/10/ZX38A/11型旋轉式交直流電阻箱

ZX38A/10/ZX38A/11型旋轉式交直流電阻箱

發布日期：2025-01-05
訪問次數：842
地址：上海寶山

ZX38A/10/ZX38A/11型旋轉式交直流電阻箱在交直流電路中作調節電阻值用，也可作電橋橋臂使用，是電學測量和電學實驗中常用的儀器。
ZX38A型旋轉式交流/直流電阻箱適用于周圍空氣溫度＋5＋45及相對濕度小于80時使用

訂購留言

用途

ZX38A/10/ZX38A/11型旋轉式交直流電阻箱在交直流電路中作調節電阻值用，也可作電橋橋臂使用，是電學測量和電學實驗中常用的儀器。

ZX38A/10/ZX38A/11型旋轉式交直流電阻箱適用于周圍空氣溫度＋5＋45及相對濕度小于80時使用.

主要技術指標

1、调整范围

ZX38A/10为(010)(0.01+0.1+1+10+100+1000)

ZX38A/11为(010)(0.1+1+10+100+1000+10000)

2、電阻箱的額定功率爲0.25W,各盤電阻允許流過的電流見表1：

電阻值Ω	10000	1000	100	10	1	0.1	0.01
電流(A)	0.005	0.015	0.05	0.15	0.5	0.5	5

3、電阻箱的准確溫度範圍:1525,使用濕度範圍80，在此條件下，電ZX38A/11交直流電阻箱誤差符合表2-1規定：

X10000	X1000	X100	X10	X1	X0.1
0.1	0.1	0.2	0.5	2	5

ZX38A/10交直流電阻箱誤差符合表2-2規定：

X1000	X100	X10	X1	X0.1	X0.01
0.1	0.1	0.2	0.5	2	5

4、零值電阻：30±5mΩ，本儀器采用彈簧微調開關，使用1萬次，變差小于2mΩ。

5、零值電感不超過2微亨。

6、電阻箱可在010kHz音頻範圍使用。因頻率引起變差小于0.1。

7、電阻箱時間常數見表3

旋鈕

倍率

X10000

X1000

X100

X10

X0.1

X0.01

時間常

數10-8 秒

＜100

＜10

＜100

8、電阻箱電氣線路與屏蔽間能承受頻率爲50赫茲，2000伏交流電電壓的作用，曆時1分鍾不擊穿。

9、電阻箱電氣線路與屏蔽絕緣電阻不小于1000兆歐。

10、外型尺寸：260×195×130mm3

結構概述

ZX38A 型交流/直流电阻箱，用不同规格的锰铜丝，在瓷管骨架上绕制成大小不同、准确稳定的电阻线圈，分别安装在6个十进开关上，串联构成一个十进制6位数电阻箱，通过引出端钮与外电路连接。使用时可调节各个开关以获得不同数值的电阻值。上述所有开关、电阻及引出端钮均安装在金属面板上。面板与箱体内壁的金属膜贴层构成屏蔽系统，面板上标有接地符号的接线柱是为了把屏蔽系统与大地相连接。

使用注意事項：

1、使用电阻箱前，应先旋转一下各个旋鈕，以使电刷接触稳定可靠。

2、電阻箱在使用中絕不應超過表1規定額定功率和額定電流。

3、電阻箱應放在有遮蔽的房間內，空氣溫度+545，相對濕度在80以下，周圍不應含有能引起腐蝕的有害氣體。

附則：

1、⑴産品使用說明書；

⑵産品合格證明書；

2、電阻箱的保證期限自出廠日期起爲二年。

3、跟上時代步伐外殼采用塑料，絕緣性能優。

上一篇：ZX84直流電阻箱

下一篇：ZX97直流電阻箱

The captain gave the order to cast off the lines. Hardly had the echo of his words ceased before the lines had fallen. Then he rang the signal to the engineer, and the great screw began to revolve beneath the stern of[Pg 49] the ship. Promptly at the advertised time the huge craft was under way. The crowd on the dock cheered as she moved slowly on, and they cheered again as she gathered speed and ploughed the water into a track of foam. The cheers grew fainter and fainter; faces and forms were no longer to be distinguished; the waving of hats and kerchiefs ceased; the long dock became a speck of black against the hilly shore, and the great city faded from sight. "But there is danger that you will get tired if we keep on much longer about the sights of Canton, and particularly the shopping part of it. Besides, we want to go out and see what there is in Hong-kong, and perhaps we may run across something new in the Chinese part of the city that we shall want to buy. A good many people say that you can buy Canton goods just as cheaply in Hong-kong as in the city they come from. That may be so; but then it is more satisfactory to get them there and have the pleasure of buying them on the spot. "Let's go back," whispered Lilian, and they turned and retraced their steps. The sight of the lovers sealed their lips. Doctor Allingham struggled for a few moments with a strange sense of bigness wanting to escape. Almost it was a physical sensation; as though the nervous energy in his brain had begun to flow independently of the controls that usually guided it through the channels graven by knowledge and experience. It was Lilian who spoke next, and there was a note of pain in her voice. The steam-engine is the most important, and in England and America best known among motive agents. The importance of steam contrasted with other sources of motive-power is due not so much to a diminished cost of power obtained in this way, but for the reason that the amount of power produced can be determined at will, and in most cases without reference to local conditions; the machinery can with fuel and water be transported from place to place, as in the case of locomotives which not only supply power for their own transit, but move besides vast loads of merchandise, or travel. The first principle to be pointed out in regard to belts, to distinguish them from shafts as a means of transmitting power, is that power is communicated by means of tensile instead of torsional strain, the power during transmission being represented in the difference of tension between the driving and the slack side of belts. In the case of shafts, their length, or the distance to which they may be extended in transmitting power, is limited by torsional resistance; and as belts are not liable to this condition, we may conclude that unless there are other difficulties to be contended with, belts are more suitable than shafts for transmitting power throughout long distances. Belts suffer resistance from the air and from friction in the bearings of supporting pulleys, which are necessary in long horizontal belts; with these exceptions they are capable of moving at a very high rate of speed, and transmitting power without appreciable loss. “Mr. Whiteside—and Jeff?” repeated Larry. Infantry." Now you've torn it. Sometimes there were crises of extraordinary violence when he was with difficulty held down in bed, and these at last wore him out. Towards dawn he fell into a troubled sleep. She opened her lips to protest, but the sound died on them, for he stooped and swept her up in his arms. She slipped her hand to his neck to steady herself, and they went forward again towards the south. Young Ralph Bardon had come into the room, and stood by the door while the last verse was being sung. He was there to give an invitation from his father, for every year the Squire provided the choristers with a mild debauch at Flightshot. Robert had been to several of these, and they glittered in his memory—the laughter and games, the merry fooling, the grand supper table gay with candles. What a joke it had been when someone had given the salt to Rosie Hubble instead of the sugar to eat with her apple pie, and when some other wag had pulled away Ern Ticehurst's chair from under him.... No one thought or spoke or wrote of anything else.[Pg 181] If at meetings Reuben tried to introduce Protection or the Franchise, he was silenced even by his own party. The Scott's Float toll-gate became as important as the Sluice or the Brede River or the Landgate Clock had been in other elections, and nothing, no matter of what national importance, could stand against it. HoME 另类淫荡p ENTER NUMBET 0010www.0af.com.cn
www.aosun.org.cn
bmaedu.cn
bygonaa1.com.cn
fjfcu.org.cn
www.fmenter.org.cn
www.kangjun.org.cn
www.niwang.com.cn
www.otsmsi.com.cn
softube.cn

另类淫荡p

産品分類展示

絕緣電阻表檢定裝置

ZX38A/10/ZX38A/11型旋轉式交直流電阻箱

留言框

産品：

您的單位：

您的姓名：

聯系電話：

常用郵箱：

省份：

詳細地址：

補充說明：

驗證碼：