HZD explosion-proof integrated vibration electronic switch, integrated explosion-proof vibration transmitter

HZD series explosion-proof integrated vibration electronic switch,

HZD series explosion proof vibration transmitter


Matching SZ6 series magnetoelectric speed sensors can monitor the peak value or vibration peak value of the rotating machinery, or monitor and protect the vibration intensity.
Measure vibration amplitude and intensity value of the case or structure with respect to free space. It is especially suitable for machines with ball bearings. In this kind of machine, shaft vibration can be transmitted to the case more, so the vibration switch can be directly installed. On the casing, continuous measurement and protection of the rotating machinery, vibration switch installation should pay special attention, will not cause the sensor to reduce the amplitude, and the frequency effect is changed or the generated signal does not represent the real vibration of the machine, for the motor, compression Machines, fans, etc. need to measure a large number of vibration points, the vibration switch is particularly suitable.
ZDK-01 explosion-proof vibration integrated switch uses a vibrating speed meter to feel the electronic signal from the vibration source. The output signal is an electronic signal proportional to the speed. It will be compared with the preset limit value. If the limit value is exceeded, it will Trigger relays. Except for the connection configuration with the mechanical relays, the ZDK-01 explosion-proof type vibration switch has no other movable parts. Although the ZDK-01 explosion-proof vibration switch is more expensive than the mechanical vibration switch, it uses The same technology as the remote monitoring system and the same functions as the remote monitoring system. Compared with these products, they only cost 1/3 to 1/2 of them. An important feature of these switches is that they have A built-in time delay device. This prevents the momentary increase of the vibration amplitude caused by the alarm triggering or equipment emergency stop. Simultaneously it also avoids the sudden stop caused by the instantaneous vibration at the time of mechanical start-up.
Almost all mechanical devices have an excessively long vibration time before starting up to normal operation speed. If the switch has no time delay function, the same mechanical switch, instantaneous overshoot at startup will immediately cause tripping. Personnel usually keep the switch on until the transient vibration is over. This causes the tripping reference to be too high to protect the normal operation of the machine. The standard time for the factory-set alarm trigger delay is 3 seconds.
2. Technical Parameters
2.1 Sensitivity:&nbsp30mv/mm/s±5%
2.2 Frequency Response: 5 to &nbsp1000&nbspHz
2.3 Natural frequency: 10Hz
2.4 Measurement Range: 0~2000μm
2.5 Switch Output: AC220V/5A
2.6 Output Impedance: ≤500Ω
2.7 Working Voltage: DC24V
2.8 Maximum Acceleration: 10g
2.9 Measurement direction: vertical or horizontal
2.10 Environment: Temperature -30°C～70°C Relative Humidity ≤90%
2.11 Dimensions: φ70×115mm
2.12 Mounting thread: M20×1.5
2.13 Weight: About 600g
2.14 Accuracy: ±1% (full scale)
?3. Installation
3.1 Installation position: Mount vertically or horizontally on the measured vibration point and fix it with the M20×1.5 screw at the bottom of the transmitter.
3.2 Installation Dimensions and Specifications: If the transmitter mounting position is subject to high-temperature steam, etc., in order to reduce the ambient temperature of the transmitter, it is necessary to add protective measures, under normal circumstances without protection.
3.3 Use and insulation requirements. The three-core shielded cable is used to connect the transmitter. The red wire is connected to the DC24V power supply, the blue wire is the 4-20mA current output terminal, and the yellow wire is connected to the DC power supply ground (DC24V power supply and 4 to 20mA current output common terminal). The connecting wires require good insulation properties. One end of the shield of the cable is floating and the other end is connected to earth.
The transmitter is mounted with M20 x 1.5 threads. For the protective measures for the installation of the transmitter, the factory is equipped with a protective cover, and the rest is handled by the user according to local conditions.