DM3557 數位萬用電錶

眾亮DM3550系列桌上型數位萬用錶提供多種量測功能，專業、穩定、準確、高解析度量測。不論在設計研發、生產製造或是品管檢驗的應用上，眾亮的DM3550系列數位萬用電錶都是你最佳的選擇。

．直流電壓5 4/5位，500,000 Counts高解析度量測
．頻率計數6位顯示、999,999 Counts高解析度及0.002%高精準度量測
．高精密直流電壓量測(DM3559為0.02%, DM3557為0.03% )及每秒5次快速量測
．高頻寬(DM3559為100KHz，DM3557為20KHz)，交流/交直流混合True RMS電壓量測功能
．全範圍(電阻，電容)輸入保護(DM3559為1000V，DM3557為600V)
．T1-T2雙軌K-Type溫度量測-50度C到1000度C(僅支援DM3559)
．光電耦合隔離式RS-232電腦連線介面(僅支援DM3559)
．WIN 95/98TM相容軟體(僅支援DM3559)
．自動換檔紀錄MAX，MIN，MAX-MIN讀值
．資料保持(Data Hold)，相對值REL模式測量
．每秒高達60次高速類比條狀顯示
．直流電壓測量範圍0.001mV~1000V，交流電壓測量範圍0.01mV~1000V，交直流電流測量範圍0.01μA~20A
．電阻值測量範圍0.01Ω~50MΩ，電容值測量範圍10pF~9999μF
．具有四個可調觸發準位的Line Level Frequency
．數位邏輯準位頻率範圍5Hz~2MHz
．Duty Cycle比率量測，二極體測試
．程序控制循環電流測量(%4-20mA)
．20種可調整的阻抗值作功率測量(dBm)
．高速自動換檔，連續性聲音提示(<100μS)
．大型背光LCD顯示

DC Voltage Range & Accuracy
Range	DM3559		DM3557
500.00mV, 5.0000V,	0.02% + 2d		0.03% + 2d
50.000V
500.00V	0.04% + 2d		0.05% + 2d
Input Impedance: 10MΩ // 30pF nominal
(80pF nominal for 500mV Range)
Ohms Range & Accuracy
Range	DM3559		DM3557
500.00Ω	0.07% + 10d
5.0000KΩ			0.1% + 6d
50.000KΩ	0.07% + 2d
5.0000MΩ	0.2% + 6d		0.4% + 6d
50.000MΩ	2.0% + 6d		2.0% + 6d
O.C.Voltage : <1.3VDC (<3VDC for 500Ω)
Capacitance Range & Accuracy
50.00Nf		0.8% + 3d
500.0nf		0.8% + 3d
5.000uF		1.0% + 3d
50.00uF		2.0% + 3d
500.0uF		3.5% + 5d
9999uF		5.0% + 5d
Accuracy with Film Capacitor or Better

DC Current Range & Accuracy
500.00uA	0.15% + 20d
5000.0uA	0.1% + 20d
50.000mA	0.15% + 15d
500.00mA	0.1% + 20d
5.0000A	0.5% + 10d
10.000A	* 0.5% + 20d
*10A Continuous, 20A for 30 Second Max with
5 Minutes Cool Down Interval
Audible Continuity Tester
Audible Threshold: Between 20Ω and 200Ω
Response Time < 100uS
dBm
At 600Ω, -11.76dBm to 54.25dBm
Accuracy: 0.25dB + 2d (@40Hz to 20KHz)
Selectable Reference Impedance Values of 4, 8,
16, 32, 50, 75, 93, 110, 125, 135, 150, 200,
250, 300, 500, 600, 800, 900, 1000, 1200Ω
Input Impedance: 10MΩ // 30pF nominal

AC / AC+DC Voltage Range & Accuracy
	DM3559	DM3557
20Hz to 45Hz
500.00mV, 5.0000V	1.5% + 40d
50.000V		Unspec'd
500.00V, 1000.0V	Unspec'd
45Hz to 300Hz
500.00mV	0.3% + 20d
5.0000V, 50.000V	0.8% + 20d	0.8% + 60d
500.00V, 1000.0V	0.4% + 40d
	300Hz to 5KHz	300Hz to 1KHz
500.00mV	0.3% + 10d	0.8% + 40d
5.0000V, 50.000V,	0.4% + 40d	2.0% + 60d
500.00V
1000.0V	0.8% + 40d	1.0% + 40d
	5KHz to 20KHz	1KHz to 20KHz
500.00mV	0.5% + 20d	1Db **
5.0000V, 50.000V	0.8% + 20d	2dB **
500.00V	0.5% + 20d	3dB **
1000.0V	Unspec'd	Unspec'd
20KHz to 100KHz
500.00mV	2.0% + 40d
5.0000V, 50.000V	4.0% + 40d **	Unspec'd
500.00V	Unspec'd
1000.0V
Input Impedance: 10MΩ // 30pF nominal
(80pF nominal for 500mV Range)
Residual Reading less than 50d with Test Leads Shorted
* From 5% to 10% of Range :
Accuracy % of Reading (or in dB) + 80d
** From 5% to 10% of Range :
Accuracy % of Reading (or in dB) + 180d
* *From 10% to 15% of Range :
Accuracy % of Reading (or in dB) + 100d
1000V Frequency Range to 1KHz

T1-T2 Dual Temperature (DM3559 Only)
Range		Accuracy
-50.0℃ to 1000.0℃		0.3% + 1℃
-58.0℉ to 1832.0℉		0.3% + 2℉
Thermocouple Range & Accuracy not Included
Diode Tester
Range	Accuracy	Test Current	Open Circuit
		Typical	Voltage
5.0000V	1% + 1d	0.8mA	< 3.5VDC
DC Loop Current %4-20mA
4mA=0%(Zero), 20mA=100%(Span)
Resolution: 0.01% Accuracy: ±25d

AC / AC+DC Current Range & Accuracy
Range	DM3559	DM3557
50Hz to 60Hz
500.00uA
5000.0uA
50.000mA	0.5% + 50d	1.0% + 40d
500.00mA
5.0000A
10.000A *
40Hz to 1KHz
500.00uA
5000.0uA
50.000mA	0.7% + 50d	1.0% + 40d
500.00mA
5.0000A
10.000A *
1KHz to 10KHz
500.00uA
5000.0uA	2.0% + 50d	Unspec'd
50.000mA
500.00mA
5.0000A	Unspec'd	Unspec'd
10.000A *
*10A Continuous, 20A for 30 Second Max with
5 Minutes Cool Down Interval

AC Hz Line Level Frequency
Range	Accuracy
5.0000Hz to 200.000KHz	0.002% + 4d
Sensitivities (Sine Wave):
0.1V min	@500mV Range
1V min	@5V Range
10V min	@50V Range
100V min	@500V Range
900V min	@1000V Range
Logic Hz Logic Level Frequency
Range	Accuracy
5.0000Hz	0.002% + 4d
to 2.00000MHz
Sensitivity : 2.5V Square Wave
% Duty Cycle
Range	Accuracy
0.1% to 99.99%	3d/KHz + 2d
Input Frequency: 5Hz to 500KHz, 5V TTL Family
Crest Mode (Instantaneous Peak Hold)
Accuracy: Specified Accuracy ±100d for changes
>0.8msec in Duration

General Specification
Power Supply : AC115V/230V±10%, 60/50Hz Switch Selectable	Power Consumption : Approx. 6VA
Operation Humidity/Temperature Range : 80% R.H. (+5℃ to 31℃), 50% R.H. (+31℃ to 40℃)
Storage Temperature/Humidity Range : -10 to 60℃, <80% R.H.
Warm-up Time : Approx. 30 min.
Dimensions : 213(W) x 88(H) x 394(D) mm	Net Weight : 3.6Kg
Accessories : Power Cord x1, Operation Manual x1, Test Lead x1set, K-Type Thermocouple x1(DM3559 Only), RS-232 Software(floppies) x1