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Function Description
1, to achieve intelligent processing: alarm I value, II value can be arbitrarily set through the panel button
2, the panel button can adjust the range value, no potentiometer adjustment, convenient on-site debugging
3, the number of teeth can be arbitrarily set through the panel buttons
4. The alarm delay adjustment range is 0.1~3 seconds to prevent false alarms caused by on-site interference.
5, with upper and lower power detection function, at the same time cut off the alarm, stop the output circuit, can effectively suppress the instrument false alarm
6. The rear panel has a current output terminal proportional to the value of the rotation for recording and output technical indicators.
Electrical indicators:
1. External power supply; 220VAC 50Hz 2A
DWQZ probe 8111-01-A99-B03-C01-D02-E10
Can be used to measure vibration of the housing, housing or structure. The vibration measured by this sensor is absolute vibration with respect to free space, and its output voltage is proportional to the vibration speed. Therefore, it is also called a speed vibration sensor, which can convert the speed amount into an displacement amount. It is directly installed outside the machine, so it is very convenient to use and maintain. Under some special conditions, it is impossible to install an eddy current sensor for some reason (such as installation conditions and environment). For this type of machine, if the vibration of the shaft can be transmitted to the bearing housing, its vibration. Measurements can be made using a speed sensor mounted on the housing. However, for most of the sliding bearing machines, the shaft vibration is usually attenuated or distorted when it is transmitted to the bearing housing. Therefore, the eddy current sensor is used to directly measure the vibration of the shaft, which is more accurate and comprehensive.
It belongs to inertial sensing. The vibration signal using the principle of magnetoelectric induction is converted into an electrical signal. It is mainly composed of magnetic circuit system, inertial mass, spring damping and other parts. A magnet is rigidly fixed in the sensor housing, and the inertial mass (coil assembly) is suspended from the housing by a spring element. During operation, the sensor is mounted on the machine. When the machine vibrates, within the operating frequency range of the sensor, the coil and the magnet move relative to each other, cutting the magnetic field lines, and generating an induced voltage in the coil, the voltage value being proportional to the vibration speed value. When it is matched with the secondary meter, the vibration speed or the amount of displacement can be displayed. It can also be sent to other secondary instruments or AC voltmeters for measurement.
Can be used for absolute vibration measurement of the housing, housing or structure relative to free space. The output voltage is proportional to the vibration speed, so it is also called the speed vibration sensor. The output can be the magnitude of the velocity value, or it can be converted into a displacement signal output by integrating the velocity. This measurement allows evaluation of the overall operating conditions of a rotating or reciprocating mechanism.
The rare earth magnet in the sensor establishes an initial magnetic field for the Hall device. When the ferromagnetic tooth passes in front of the Hall device, the magnetic field changes. The Hall device detects this change and converts it into an alternating signal. The sensor is built in. The circuit amplifies, shapes, and outputs a good rectangular pulse signal. The measurement frequency range is wider and the output is more accurate and stable. It has been widely used in the field of speed measurement in industry, automobile, and aviation.
The Hall effect is used. When the metal tooth passes through the front end of the Hall sensor, it causes a change of the magnetic field. The Hall element detects the change of the magnetic field and converts it into an alternating electric signal. The built-in circuit of the sensor amplifies and shapes the signal, and the output is good. The rectangular pulse signal has a wider measurement frequency range, more accurate and stable output signals, simple installation, oil and water resistance, and has been widely used in the fields of power, automobile, aviation, textile, petrochemical, etc.
Technical Parameters:
1. Working voltage: 5~24V
2. Measurement range: 0 ~ 20KHz
3. Speed ​​measuring gear form: modulus 2 ~ 4 (involute gear)
4. Output signal: square wave, its peak-to-peak value is equal to the working power supply voltage amplitude, independent of the speed, zui large output current 20mA
5. Working temperature: -30 ~ +130 °C
Performance characteristics
â— Measurement range: 0-25KHz
â— Installation clearance: 1-2. 5mm
Technical indicators
â— Input voltage: +12VDC
Current "30mA
DWQZ probe 8111-01-A99-B03-C01-D02-E10
DWQZ probe 8111-01-A99-B03-C01-D02-E10