亚洲精品成人网线在线播放va,一级一级a爱片免费免免少妇,国产国精品亚洲AV片一级,欧美一级A片免费不卡视频,欧美一级在线观看,一级做性色a爰片久久毛片欧,免费无码不卡的一级毛片,欧美亚日韩一级人人妻,精品丝袜人妻久久久久久

Hot Line:021-63177969 041-35076

...

The universal frequency shift parameter tester is applicable to the on-site debugging, operation testing and online fault diagnosis of zpw-2000k /A non-insulation frequency shift signal system, as well as the installation, debugging, testing, maintenance and daily technical management of other frequency shift signal equipment used in China's railways.

Function:

◆ Frequency shift automatic search and measurement
◆ Zpw-2000 multi-carrier frequency measurement (including dual-carrier frequency and four-carrier frequency measurement on the same screen)
◆ ZPW-2000 On-line impedance measurement
◆ ZPW-2000 On-line capacitance measurement
◆ 25/50Hz Pulse signal measurement (including phase-sensitive track circuit measurement)
◆ Single frequency signal measurement
◆ Dc voltage measurement
◆ System parameter setting

Characteristics:

◆ Double channel design
◆ 3.8 inch large display screen, resolution 304*240, display intuitive, prompt clear
◆ Measurement accuracy up to 0.5%, voltage and current display minimum resolution to 0.1mV/mA
◆ Strong signal processing ability, simultaneous analysis and processing of zpw-2000 quad-carrier frequency signal
◆ The center frequency value, low frequency modulation value, voltage or current value are displayed on the same screen
◆ Test quantity can be saved and viewed

Specification:

Size: 185×101×34 mm
Weight: 370 g