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南澳電氣NAGKT-I數(shù)字式高精度電氣儀表試驗(yàn)臺(tái)
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- GIS電器開(kāi)關(guān)斷路器測(cè)試儀器
南澳電氣NAGKT-I數(shù)字式高精度電氣儀表試驗(yàn)臺(tái) NAGKT-I electrical instrument test bed
一:南澳電氣NAGKT-I數(shù)字式高精度電氣儀表試驗(yàn)臺(tái)概述
NAGKT-I型數(shù)字式高精度電氣儀表校驗(yàn)試驗(yàn)臺(tái)(也叫做:數(shù)字式多用表校驗(yàn)儀、三表校驗(yàn)儀)是一種LED五位數(shù)字式交、直流標(biāo)準(zhǔn)電壓、電流發(fā)生器,用于校驗(yàn)數(shù)字式電表、各種指針式電表及直流0.2級(jí),交流0.5級(jí)以下各類(lèi)表頭。本儀器電壓輸出五檔(0~1000V);電流輸出六檔(0~10A);可以選配:中值電阻2×11檔(0Ω~24MΩ);交流頻率50Hz,60Hz,400Hz(數(shù)字合成,按鍵選擇)。以上項(xiàng)目及量程變換均通過(guò)內(nèi)部開(kāi)關(guān)轉(zhuǎn)換。采用最新的16位A/D轉(zhuǎn)換芯片,轉(zhuǎn)換速度和精度得到了大幅度提高;AC/DC采用真有效值轉(zhuǎn)換芯片,保證了交流輸出的精度;整機(jī)線(xiàn)性度好。采用了新型的復(fù)合大功率放大器,輸出功率強(qiáng)大,可靠性高,失真度小。輸出調(diào)節(jié)采用進(jìn)口電位器,壽命長(zhǎng),調(diào)節(jié)細(xì)度高。整機(jī)采用“閉環(huán)控制”,輸出穩(wěn)定度高。電壓短路、電流開(kāi)路自動(dòng)保護(hù),完全符合新三表鑒定規(guī)程。
二、南澳電氣NAGKT-I數(shù)字式高精度電氣儀表試驗(yàn)臺(tái)工作原理:
本儀器有數(shù)字合成正弦波發(fā)生器單元、功放單元、電源及保護(hù)單元、量程單元、A/D單元、顯示單元、鍵盤(pán)單元及標(biāo)準(zhǔn)電阻器等組成。
三、南澳電氣NAGKT-I數(shù)字式高精度電氣儀表試驗(yàn)臺(tái)技術(shù)性能:
2.1性能參數(shù):
項(xiàng)
目
量 程
輸 出 范 圍
分 辨 率
最 大 輸 出
精 度(23℃±2℃)
直
流 500mV 0~550.00mV 0.01mV 100mA
±(讀數(shù)值×0.05%+滿(mǎn)量程值×0.01%)
5V 0~5.5000V 0.1mV 100mA
電 50V 0~55.000V 1mV 100mA
壓 500V 0~550.00V 10mV 20mA
1KV 0~1050.0V 100mV 10mA
直
流
電
流 500uA 0~550.00uA 0.01uA 2V ±(讀數(shù)值×0.1%+滿(mǎn)量程值×0.02%)
5mA 0~5.5000mA 0.1uA 2V
50mA 0~55.000mA 1uA 2V
500mA 0~550.00mA 10uA 2V
5A 0~5.5000A 100uA 1.5V ±(讀數(shù)值×0.1%+滿(mǎn)量程值×0.04%)
10A 0~11.000A 1mA 1.5V
交
流
電
壓 500mV 0~550.00mV 0.01mV 100mA
±(讀數(shù)值×0.1%+滿(mǎn)量程值×0.05%)
AC I 1mA以下不考核
5V 0~5.5000V 0.1mV 100mA
50V 0~55.000V 1mV 100mA
500V 0~550.00V 10mV 20mA
1KV 0~1050.0V 100mV 10mA
交
流
電
流 500uA
5mA 0~5.5000mA 0.1uA 2V
50mA 0~55.000mA 1uA 2V
500mA 0~550.00mA 10uA 2V
5A 0~5.5000A 100uA 1.5V ±(讀數(shù)值×0.1%+滿(mǎn)量程值×0.01%)
10A 0~11.000A 1mA 1.5V
中
值
電
阻 示 值 功 率 精 度
10Ω、24Ω、50Ω、100Ω、240Ω
500Ω、1kΩ、2.4kΩ、5kΩ
10kΩ、24kΩ、10kΩ、24kΩ
50kΩ、100kΩ、240kΩ、500kΩ、1MΩ、2.4MΩ 5MΩ、10 MΩ、24 MΩ
0.25W
±(顯示值×0.1%+10mΩ)
2.2:交流失真度:不大于1% 。
2.3:直流紋波系數(shù):不大于0.5%;電流10A不大于3% 。
2.4:穩(wěn)定性:儀器預(yù)熱一小時(shí)后,1分鐘內(nèi)輸出漂移應(yīng)小于基本量程滿(mǎn)度的±0.05%,作精密測(cè)量時(shí)需預(yù)熱2小時(shí)。
2.5:外型尺寸:480×340×134(mm)。
2.6:重量:10Kg。
NAGKT-I electrical instrument test-bed
I. Overview
NAGKT-I digital electrical instrument calibration test bench (also called: digital multimeter calibrator, three-table calibrator) is a five-digit LED AC, DC standard voltage, current generator for Calibration digital meters, a variety of hands-meter and DC 0.2, the exchange of 0.5 below the various types of table head. (0 ~ 12MΩ); AC frequency of 50Hz, 60Hz, 400Hz (digital synthesis, the output voltage of the three-phase voltage range of 0 ~ Button to select). The above items and range conversion are converted by internal switches. Using the latest 16-bit A / D converter chip, conversion speed and accuracy has been greatly improved; AC / DC converter with true RMS value to ensure the accuracy of AC output; linearity is good. Using a new type of composite high-power amplifier, the output power of strong, high reliability, low distortion. Output adjustment using imported potentiometer, long life, high fineness regulation. The machine adopts "closed-loop control", the output stability is high. Voltage short-circuit, open current automatic protection, in full compliance with the new three table identification procedures.
Second, the working principle:
The instrument has a digital synthesis sine wave generator unit, power amplifier unit, power and protection unit, range unit, A / D unit, display unit, keyboard unit and standard resistors and other components.
Third, the technical performance:
2.1 Performance parameters:
Item Test Range Output Range Resolution Max Output
Accuracy(23℃±2℃)
DC Voltage
500mV 0~550.00mV 0.01mV 100mA ±(讀數(shù)值×0.05%+滿(mǎn)量程值×0.01%)
±(Reading value × 0.05% + full scale value × 0.01%)
5V 0~5.5000V 0.1mV 100mA
50V 0~55.000V 1mV 100mA
500V 0~550.00V 10mV 20mA
1KV 0~1050.0V 100mV 10mA
DC Current 500uA 0~550.00uA 0.01uA 2V ±(讀數(shù)值×0.1%+滿(mǎn)量程值×0.02%)
±(Reading value × 0.1% + full scale value × 0.02%)
5mA 0~5.5000mA 0.1uA 2V
50mA 0~55.000mA 1uA 2V
500mA 0~550.00mA 10uA 2V
5A 0~5.5000A 100uA 1.5V ±(讀數(shù)值×0.1%+滿(mǎn)量程值×0.04%)
±(Reading value × 0.1% + full scale value × 0.04%)
10A 0~11.000A 1mA 1.5V
AC Voltage 500mV 0~550.00mV 0.01mV 100mA ±(讀數(shù)值×0.1%+滿(mǎn)量程值×0.05%)
±(Reading value × 0.1% + full scale value × 0.05%)
AC I 1mA not included
5V 0~5.5000V 0.1mV 100mA
50V 0~55.000V 1mV 100mA
500V 0~550.00V 10mV 20mA
1KV 0~1050.0V 100mV 10mA
AC Current 500uA
5mA 0~5.5000mA 0.1uA 2V
50mA 0~55.000mA 1uA 2V
500mA 0~550.00mA 10uA 2V
5A 0~5.5000A 100uA 1.5V ±(讀數(shù)值×0.1%+滿(mǎn)量程值×0.01%)
±(Reading value × 0.1% + full scale value × 0.01%)
10A 0~11.000A 1mA 1.5V
Middle Data Resistace Display Data Power Accuracy
10Ω、24Ω、50Ω、100Ω、240Ω
500Ω、1kΩ、2.4kΩ、5kΩ
10kΩ、24kΩ、10kΩ、24kΩ
50kΩ、100kΩ、240kΩ、500kΩ、1MΩ、2.4MΩ 5MΩ、10 MΩ、24 MΩ
0.25W
±(顯示值×0.1%+10mΩ)
±(Reading value×0.1%+10mΩ)
2.2: AC distortion: less than 1%.
2.3: DC ripple factor: not more than 0.5%; current 10A not more than 3%.
2.4: Stability: the instrument warm-up after one hour, 1 minute output drift should be less than the full range of the basic range of ± 0.05%, for precision measurements need to warm up 2 hours.
2.5: Overall dimensions: 480 × 340 × 134 (mm).
2.6: Weight: 10Kg.
南澳電氣武漢有限公司
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