大华安防工具系列 DH-PFM900-E说明书 Tool Series | DH-PFM900-E www.dahuasecurity.com DH-PFM900-E Integrated Mount Tester Features • 4” IPS screen and QWERTY flip keyboard with 45keys ; • Support H.264/H.265 HD decoding protocol; • Support IP , HDCVI/AHD/TVI/CVBS; ...
original Dahua Integrated Mount Tester PFM900-E $344.00 - $346.00 Min. order: 2 pieces Dahua Wireless Alarm Hub 2 ARC3800H-FW2(868) Offers a Dual Backup System $125.00 - $132.00 Min. order: 2 pieces Original Dahua Camera 5MP IR Fixed-focal Eyeball WizSense Network Camera IPC-HDW2541T...
PFM900-E Integrated Mount Tester > 4.0" TFT screen, 800 × 480 resolution > H.264/H.265 decoding display for IPC > HDCVI/AHD/TVI/CVBS video display control > Support SD and HD direct switch > 12V/2A DC power supply for the camera > Support RS-485 cont...
PFM900-E Sensor CMOS HDMI Format N/a Horizontal Resolution N/a Kind N/a Certification CE, FCC Feature N/a Effective Distance N/a Sensor Size N/a Remote Control N.a After-Sales Service Yes Warranty 2 Years Operation System Linux
> 12V/2A DC power supply for the camera > Support RS–485 control, and audio test > Length and attenuation tests of the network cable > Functions of digital multimeter Bộ chọn sản phẩm System Operation System Linux Language ...
1、脉冲频率调制(Pulse frequency modulationPFM是频率的有和无的变化) (1)、导通时间不变,断开时间变; (2)、断开时间不变,导通时间变; 一种脉冲调制技术,调制信号的频率随输入信号幅值而变化,其占空比不变。由于调制信号通常为频率变化的方波信号,因此,PFM也叫做方波FM。 优点: (1)、PFM相比较PWM主要优点在于...
PFMV5 Manifold mounting •Mount the bracket using the mounting screws supplied.•The required tightening torque is 0.32±0.02 Nm.•Mounting in series using the mounting brackets is not suitable for all models, depending on which fitting type is used.Thank you for purchasing an SMC PFMV5 ...
1.截止作用。阀门是关闭(关闭)管道中的流体,不会使其流动,一般情况下各种管道的阀门主要起截止作用。 2.调节作用。阀门可哟根据工作条件或要求调整介质流量,温度,压力,液位等参数,流量控制取决于阀门开度的大小调整。 3.止逆作用一些管道需要中等流量朝一个方向流动,不允许逆流或倒带。使用止回阀可以防止介质回流。
> 12V/2A DC power supply for the camera > Support RS–485 control, and audio test > Length and attenuation tests of the network cable > Functions of digital multimeter Product Selector System Operation System Linux Language Multi-language interface: English, Chinese, Spanish, French, German, Tu...
PFM900-E Integrated Mount Tester > 4.0" TFT screen, 800 × 480 resolution > H.264/H.265 decoding display for IPC > HDCVI/AHD/TVI/CVBS video display control > Support SD and HD direct switch > 12V/2A DC power supply for the camera > Support RS–485 control, and audio test > ...