Forward and reverse rotation speed sensor LHZS69

1： Overview

The LHZS69 forward and reverse monitoring dual channel sensor is used to detect the speed and linear velocity of the wheel axle, and the speed of the measured object can also be obtained through calculation and processing. This sensor has good low-frequency and high-frequency characteristics. Low frequency can reach 0Hz, used for zero speed measurement of rotating machinery, up to 20KHz, which can meet the high-speed measurement requirements of the vast majority of industrial fields. Due to the fact that LHZS69 can provide two speed signals with a certain phase difference, forward and reverse rotation discrimination can be performed. LHZS69 is easy to install, does not come into contact with the measuring gear, has no wear, and outputs a square wave waveform with a duty cycle of about 50%; Wide speed measurement range, wide temperature adaptability, strong vibration resistance, power polarity protection and output short circuit protection, in compliance with DIN867 standard.

2： Technical parameters

1．Sensor installation
The tested sensor is a magnetic conductor with teeth or grooves on it.
Suggestion: Speed measuring gear module ≥ 1.7, made of magnetic low carbon steel
Note: Non standard teeth or grooves with uneven width compared to flat surfaces will result in changes in the waveform width ratio.
Installation gap: 0.5-2mm, typical value is 1.0mm
Note: Depending on the vibration condition of the tested component
2．Sensor output characteristics
Frequency response characteristics: 0-20kHz
Number of output channels: dual channels
Output waveform: square wave, rising and falling edge time of 12 μ s ± 40%
Output amplitude: High level: U-0.7 (U: power supply voltage), Low level:<0.1V
Pulse duty cycle: 50% ± 25%
● Phase difference: 90 ± 30 ° (first channel leading)
Note: Depending on the installation method and the direction of rotation of the rotating parts, this parameter is applicable to the installation method illustrated in Figure 4 of this manual
● Load capacity: 20mA (maximum)
Output impedance: ＜ 47 Ω
Power supply voltage: Ub=+24VDC (5V~26V)
Power consumption current: ≤ 35mA
Working temperature: -40 ℃ to+125 ℃
● Vibration resistance: vibration (10Hz~2KHz) 30g, impact 100g
Sealing performance: IP68
● Power polarity protection: Yes
● Output short circuit protection: Yes
● Insulation strength: 1000V 50Hz, 1min (channel and shell)
Shell material: Stainless steel 304 (other materials can be used according to user requirements)