DM3557 数位万用电表

众亮DM3550系列桌上型数位万用表提供多种量测功能，专业、稳定、准确、高解析度量测。不论在设计研发、生产制造或是品管检验的应用上，众亮的DM3550系列数位万用电表都是你最佳的选择。

　

测线及附件

产品特点

．直流电压5 4/5位，500,000 Counts高解析度量测
．频率计数6位显示、999,999 Counts高解析度及0.002%高精准度量测
．高精密直流电压量测(DM3559为0.02%, DM3557为0.03% )及每秒5次快速量测
．高频宽(DM3559为100KHz，DM3557为20KHz)，交流/交直流混合True RMS电压量测功能
．全范围(电阻，电容)输入保护(DM3559为1000V，DM3557为600V)
．T1-T2双轨K-Type温度量测-50度C到1000度C(仅支援DM3559)
．光电耦合隔离式RS-232电脑连线介面(仅支援DM3559)
．WIN 95/98TM相容软体(仅支援DM3559)
．自动换档纪录MAX，MIN，MAX-MIN读值
．资料保持(Data Hold)，相对值REL模式测量
．每秒高达60次高速类比条状显示
．直流电压测量范围0.001mV~1000V，交流电压测量范围0.01mV~1000V，交直流电流测量范围0.01μA~20A
．电阻值测量范围0.01Ω~50MΩ，电容值测量范围10pF~9999μF
．具有四个可调触发准位的Line Level Frequency
．数位逻辑准位频率范围5Hz~2MHz
．Duty Cycle比率量测，二极体测试
．程序控制循环电流测量(%4-20mA)
．20种可调整的阻抗值作功率测量(dBm)
．高速自动换档，连续性声音提示(<100μS)
．大型背光LCD显示

　

产品规格

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

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