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Explosion-proof integrated vibration transmitter
The integrated explosion-proof vibration transmitter integrates the vibration sensor circuit with the precision measurement circuit, realizes the measurement and transmission function of "sensor + detection instrument", and establishes a high-precision vibration measurement system. It outputs 4-20mA signal and can be directly connected to DCS, PLC or other systems. It is an ideal choice for vibration status monitoring of industrial rotating machinery gears and bearings such as fans, turbines, compressors, and water pumps.
Classification:
Detailed introduction
1. Overview
The integrated explosion-proof vibration transmitter integrates the vibration sensor circuit with the precision measurement circuit, realizes the measurement and transmission function of "sensor + detection instrument", and establishes a high-precision vibration measurement system. It outputs 4~20mA signal and can be directly connected to DCS, PLC or other systems. It is an ideal choice for vibration measurement of equipment such as fans, steam turbines, compressors, and water pumps.
The integrated explosion-proof vibration transmitter is made into explosion-proof or dust explosion-proof type according to the relevant provisions of GB/T3836.1 "Explosive environment Part 1: General requirements for equipment", GB/T3836.2 "Explosive environment Part 2: Equipment protected by flameproof type "d"" or GB/T12476.1 "Electrical equipment for combustible dust environment Part 1: General requirements". It has been inspected and qualified by the quality supervision and inspection department authorized by the state. This transmitter is used in IIA, IIB, IIC T1-T6 explosion-hazardous places or dust places in zones 1 and 2 where combustible gases, steam and air are mixed.
2. Working environment
Temperature range: -40~+65℃
Relative humidity: 95%
3. Performance advantages
Low power consumption and good stability
Can be directly connected to DCS or PLC system
4. Technical indicators
(I) Piezoelectric technical indicators
Explosion-proof mark: ExdblICT6 Gb, ExtblCT80°C Db
Protection level: IP66
External power supply: 24VDC10%
Line polarity reverse protection: signal reverse connection, circuit safety
Input
Signal: taken from piezoelectric system
Frequency response: 3-1000HZ
Input impedance: ≥100KΩ
Range
0-10.0mm/s (true effective value)
0-20.0mm/s
0-30.0mm/s
0-50.0mm/s
If you have special requirements, we will work with you to develop the vibration sensor you need.
Output
Current output: 4~20mA Output load: <500Ω
(II) Magnetoelectric technical indicators
Explosion-proof mark: ExdbllCT6 Gb, ExtblllCT80℃ Db Protection level: IP66
External power supply: 24VDC10%
Input
Signal: Signal from built-in speed sensor
Frequency response: 3~1000Hz Input impedance: ≥100KΩ
Range:
0~200um (peak-to-peak value)
0~300um (peak-to-peak value)
Displacement: 0~500um (peak-to-peak value) If you have special requirements, we will work with you to develop the vibration sensor output you need
Current output: 4~20mA Output load: <500Ω
5. Appearance and installation dimensions
Appearance dimensions: Explosion-proof type: φ36x105 mm , magnetoelectric ordinary type: φ36x90mm, piezoelectric ordinary type: φ26x60mm
Installation size: M10x1.5x10mm or other
Use 2 x0.3mm² shielded cable
6. Structure and working principle
The transmitter consists of a piezoelectric circuit (or magnetoelectric circuit), a signal processing board, a terminal block and a housing. The piezoelectric probe detects the vibration of the object being tested and converts the acceleration of the vibration of the object being tested into a corresponding piezoelectric signal, which is processed by an integration and amplification circuit to output a 4~20mA current signal.
The transmitter is made into a flameproof electrical device according to GB/T3836.1 and GB/T3836.2, and the explosion-proof mark is ExdbllCT6 Gb.
ExtblllCT80℃ Db.
The maximum surface temperature of the equipment housing does not exceed 80℃.
The flameproof surface of the equipment complies with the provisions of Article 5.3 of GB3836.2,
The cable entry device can withstand the tightening test specified in Appendix A of GB3836.1.
The sealing and mechanical strength of the cable entry device meet the requirements specified in Appendix C of GB3836.1.
The transmitter is fixed on the metal equipment housing.
The product has a beautiful and symmetrical appearance.
7. Installation and wiring
The vibration sensor is correctly installed on the object to be measured. Generally, one end of the stud screw provided by the manufacturer is fixed to the center hole of the transmitter base, and the other end is fixed to the appropriate position of the rotating mechanical bearing cover. The installation thread is M10x1.5. To eliminate on-site interference, one end of the shielded cable must be grounded.
8. Precautions
Check whether the explosion-proof mark of the housing is consistent with the site.
It is forbidden to open the cover within 1 minute after power failure.
It is not allowed to open the housing with power on.
Components cannot be replaced without permission.
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Nanyang Huaye Explosion Protected Instrument Co., Ltd.
Professional manufacturer of explosion-proof temperature meters and temperature sensors and suppliers of motor supporting instruments
Professional manufacturer of explosion-proof temperature instruments and temperature sensors, as well...
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Address: Middle Section of 3# Road, 2# Industrial Park, High-tech Zone, Nanyang City, Henan Province
E-mail:abc@huayex.com
Fax:+86-377-61613132
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