过程校验多用表YHS-787

YHS-787作为每位仪表工程师工具箱里*备的维修校准工具，YHS- 787（ProcessMeterTM）过程多用表将一台数字万用表和回路校准器结合在一台坚固*的手持工具中，价格*相当于一台回路校准器。YHS-787过程多用表以数字多用表为基础，增加了测量、输出和模拟直流回路电流的功能，准确度可达0.05%，分辨率达1微安。整机电路设计由大规模*集成电路芯片组成。内部含有16位微处理器，*、高稳定运算放大器和模数变换器。功耗低、显示精度高（53000 counts即5³/₄位）、全自动量程，可减少操作，**性。其技术性能*合电II型、电Ⅲ型自动化仪表校验标准，工作环境*合GB6587.1-86《电子测量仪器环境试验总纲》中II组仪器的有关规定。

功能

1、仪表测量时可选择*小/*大/平均/保持/相对测量模式

2、可以在电流测量的同时，为变送器提供+24V环路电源

3、仪表可以输出电流给变送器及其他设备，也可以*一个变送器输出电流

4、四种斜波步进速率可选择，在一只手空闲的情况下，测试变送器的响应速度

5、电流输出有四种范围可选择，对应精度0.05%，分辨率1μA，并且同时显示百分比量程

6、为热电偶测试校准专设毫伏测量和毫伏输出功能

7、背光源LCD显示，*大53000字，适合在任何照明条件下使用

8、内置可充电镍氢电池组，电量充沛，外部可更换。

特点

1.    输出信号数字键设定，操作*方便。

2.    仪表可测量交直流电压、电阻、频率、毫伏、交直流电流、二*管等功能。

3.    可输出源电流给变送器及其它设备，也可以*一个二线制变送器输出电流。

4.    输出四种斜波步进速率，来测试变送器的响应速度。

5.    电流输出有四种范围4～20mA、0～20mA。精度0.05%，分辨率1uA，同时显示百分比。

7.    仪表为变送器提供24Vdc环路电源，同时可以测量电流。

8.    显示器显示表笔和插座连接示意图，*误操作，自带背光源。

 

YHS-787  ProcessMeter

FEATUR*

•   DMM and loop calibrator in one tool

•   Clear LCD with backlight; 4,000 counts (30,000 counts for dc current)

•   Externally accessible battery for easy battery changes.

•    1000V overload protection on V, ohms, frequency.

•    25% Manual Step plus Auto Step and Auto Ramp on mA output.

Yehai combined the DMM you trust with the loop calibrator you need. The YHS-787 ProcessMeter  puts a complete troubleshooting solution in the palm of your hand. Get in touch with more information, faster and easier with the newest member of the Yehai 80 Series, the 787 ProcessMeter. The YHS-787 gives you the measurement capabilities you expect from our rugged, reliable DMMs plus the ability to source, simulate, or measure dc current with 1 microamp resolution and accuracy of 0.05%. Put it all together and you have the ideal tool for troubleshooting and calibrating current loop applications. So if you're tired of always tracking down a calibrator, lugging around two tools and switching back and forth, get the single * solution for doubling your power. The 787 ProcessMeter from Yehai.

Precision 1000V, 400 mA di*al multimeter

•   Measure ac and dc volts, ac and dc current, resistance, continuity, and frequency

•   0.1% dc voltage accuracy

•   0.05% dc current accuracy, 1 ‘A resolution to 30 mA

•   Simultaneous mA and % of scale readout

•   True rms ac voltage measurement to 1 kHz

•   Frequency measurement to 20 kHz

•   Min/Max/Average/TouchHold/Relative modes

•   Diode test and continuity beeper

DC current source/loop calibrator

•   20 mA current source/simulator

•   Simultaneous mA and % of scale readout

•   Manual step (25%, coarse, fine) plus auto step and auto ramp

Safety Conformance

Specifications

Current Measurement	Range:	0-10A
	Resolution:	1 mA
	Accuracy:	0.2% + 2 LSD
	Range:	0-40 mA
	Resolution:	0.001 mA
	Accuracy:	0.05% + 6 LSD
Current Sourcing	Range:	0-20 mA or 4-20 mA
	Resolution:	0.05% of span
	Drive Capability:	1000 Ω @ 20 mA
Frequency	20Hz to 50 kHz, 0.05% + 5LSD
Voltage measurement	Range:	0-700 V AC or 1000V DC
	Resolution:	0.1 mV to 1.0 V
	Accuracy:	0.03% Rdg + 5LSD (VDC)
Resistance measurement	to 4 MΩ, 0.2% + 10 LSD, 4 MΩ to 40 MΩ 0.5% + 50 LSD
Diode test	2.4 V shows diode voltage drop

 

 

Mechanical & General Specifications

Size	40 x 100 x 200 mm
Weight	600 g
Batteries	Ni – MH  rechargeable  batteries
Warranty	2  years
Battery Life	50 hours t*ical (measurement), 12 hours t*ical (sourcing 12 mA)
Shock & Vibration	Random, 2g, 5-500 Hz
	1 meter drop test
Display current and % of span	Yes
Auto step, auto ramp	Yes

企业名：深圳雷泰仪表公司

类型：经销商

电话： 0755-26717566-814

手机：15602969656

联系人：孙壮志

QQ：

邮箱：szz_yida@126.com

地址：广东深圳深圳市福田区中航路都会100大厦都会电子城3C084号