EX640B71本质安全型振动传感器，4 至 20 mA 输出，0 至 1.0 英寸/秒 pk，3 至 1kHz，顶部出线，带导管弯头的接线端子模块
测量范围： 0.0 至 1 英寸/秒 pk（0.0 至 25.4 毫米/秒 pk）
输出： 4-20 mA
频率范围：（±3dB）180 至 60000 cpm（3 至 1000 Hz）
传感元件： 陶瓷 陶瓷
重量：1.2 磅（544 克）
The EX640B71 is an industrial vibration sensor manufactured byPCB, designed for monitoring vibrations in factory and processmachinery. It provides critical data to enhance productivity andreduce downtime by identifying excessive wear and potentialfailures. Below is a detailed overview of its key features andspecifications based on the search results:
Key Features of EX640B71
Measurement Range:
Measures vibration in the range of 0.0 to 1.0 in/sec pk (0.0 to25.4 mm/s pk) 114.
Output Signal:
Provides a 4-20 mA output, making it compatible with PLC, DCS,or SCADA systems for easy data analysis 114.
Frequency Range:
Operates within a frequency range of 3 to 1000 Hz (±3 dB),suitable for detecting a wide range of vibration frequencies114.
Sensing Element:
Utilizes a ceramic sensing element with a shear geometry design,ensuring high accuracy and durability 114.
Environmental Durability:
Designed to withstand harsh industrial environments, with atemperature range of -40 to 176°F (-40 to 80°C) 114.
Electrical Specifications:
Requires an excitation voltage of 12 to 30 VDC and has astabilization time of less than 15 seconds 114.
Physical Dimensions:
Compact design with dimensions of 3.85 inches (98 mm) indiameter and 5.52 inches (140 mm) in height, weighing 1.2 lbs (544g) 114.
Installation:
Features a 1/4 NPT mounting thread and a top-exit wiringconfiguration with a removable screw terminal for easy installation114.
Safety and Compliance:
Certified as intrinsically safe, making it suitable for use inhazardous environments 114.
Applications:
Ideal for 24/7 online protection of critical machinery, reducingdowntime and maintenance costs 114.
Comparison with Similar ModelsEX640B70:
Similar to the EX640B71 but with a lower measurement range of0.0 to 0.5 in/sec pk (0.0 to 12.7 mm/s pk) 9.
EX641B71:
Measures vibration in RMS values (0.0 to 1.0 in/sec RMS) and hasa slightly different frequency range of 10 to 1000 Hz 14.
Pricing and Availability
The EX640B71 is available for purchase, with promotional offersoccasionally available. For example, a similar model (EX640B70) ispriced at ￥9000.00 per unit, including a one-year warranty and afactory calibration report 15.