BR-ZS1 noise monitoring

BR-ZS1 noise monitoring noise monitor output: 1. RS485 serial port is an interface standard, which defines the electrical standard interface, it simply just a standard physical layer. Interface card does not require cables and protocols used, so long as the interface plug-in cable we use comply with the standard serial port can be used flexibly in practice, using a variety of protocols for communication and device control on a serial interface standard. 2. RS232 RS232 interface is a standard for serial communications in 1970 by the American Electronics Industry Association (EIA) Joint Bell System, a modem manufacturers and computer terminals manufacturers jointly developed. Its full name is "serial binary data exchange interface between technical standards for data terminal equipment (DTE) and Data Communications Equipment (DCE)". The standard specifies the use of a 25-pin DB25 connector, to be provided for each pin connector signal content, but also to provide for the level of various signals. With the continuous improvement of equipment, there has been in place DB25 DB9 connector, now regarded RS232 interface called the DB9. 3. 4-20mA instrumentation signal current general are 4-20mA, refers to the minimum current of 4mA, a maximum current of 20mA. When a transmission signal, taking into account also the wire resistance, if it will drop some voltage transmission wires generated signals that the receiver will produce some error it! So using a current signal as the standard transmission transmitter! 4. 0.3-1.3V make on-site noise signal without distortion to 0.3 ~ 1.3V voltage output directly to the user's PLC technology supporting the use of noise monitoring parameters Measuring range: 30 ~ 130dB (A) Frequency range: 20Hz ~ 12.5kHz frequency meter Right: A (weighting) Time weighting: F (fast) output interface: 4 ~ 20mA / RS485 sensitivity: voltage 41.5mV / dB; current 0.133mA / dB maximum error: 0.5dB Power: 220V mains or 24V DC Dimensions Size: 200mm × 104mm × 50mm Shape Material: Aluminum alloy shell, rugged corrosion noise monitoring features 1) noise real-time monitoring, monitoring data representative of BR-ZS noise noise monitoring system capable of real-time monitoring, data representation and strong, able to reflect the true level of noise. 2) save resources, easy to use BR-ZS noise monitoring system embedded computer handles all data, direct output value of the A-weighted decibel later, just plug in the power supply which can automatically start the collection, analysis, calculation and data output. This not only greatly reduces the development cycle, and easy management to keep abreast of the noise situation, further analysis and to take timely response measures. Method 3) excellent linearity conventional noise meter DC output signal obtained using compressed AC decibel noise signal size, linearity is poor, and the compression sensitivity coefficient signal is not fixed. Results after the operation using digital noise BR-ZS meter reduced to 4-20mA signal, linear and high sensitivity coefficients of consistency.