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(Denmark) PCH1026 Low Frequency Structural Vibration Monitor - Vibration Protection
(Denmark) PCH1026 Low Frequency Structural Vibration Monitor - Vibration Protection
Product details
Overview
Permanent monitoring of various low-frequency structural vibrations and seismic vibrations PCH1026 is an independent and complete monitoring device installed in a sealed and sturdy chassis, which only needs to be connected to a DC power supply and the required output to work. It is specifically designed
Applied to low-frequency vibration monitoring, it is equipped with three sets of vibration sensors in the X, Y, and Z directions; Equipped with testing capabilities for all sensors and electronic circuits, built-in
The electronic monitoring device is used for continuous self checking protection. The design of PCH1026 is based on a digital platform, allowing multiple users to operate and quickly change settings on site. |
● Wind turbines (wind power generators) ● Tower vibration of buildings monitored according to ISO4866 Ground vibration Drive mechanism oscillations (pitch turbines)
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● Steel structure tower blade edge vibration (stall turbines) ● Bridges ● Chimneys
System Settings The CHT1012 software system can complete all settings through RS-232 serial port and can be changed arbitrarily on site; |
Settings and displays can also be remotely operated through an optional RS-485 external PC or controller (PLC);
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The record log in the PC software maintains all the settings of each monitor, which is identified by the serial number of the monitor. Instrument Features ● Built in 3 vibration sensors (accelerometers); Conduct three-axis measurements in the A, B, and C directions, monitor the tower body in all directions, and display the most ideal tower body monitoring information; Monitor four independent frequencies, which can either monitor a single frequency from each sensor or monitor four frequencies from a single sensor; Experience in wind turbine and building applications has led to the development of reliable filtering technology for PCH1026; Measure effective value, maximum value, peak value or peak to peak value; 1 to 4 independent 4-20mA industrial standard outputs; 4 programmable independent alarm relays and 1 system fault relay; Each alarm relay has an independent programmable alarm threshold and delay time; Sensors and circuits are protected by built-in electronic monitoring devices, and fault relays display fault conditions; |
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Suitable for environments with harsh temperature, humidity, and electrical noise interference; ● Can execute all user-defined monitoring instructions.
Accelerometer (sensor) 3 built-in accelerometers in directions A, B, and C (4 external accelerometers can be selected); Built in accelerometer measures static noise density: 500mg/SQRT (Hz); The built-in self-test function is achieved by applying static electricity to the sensing element. Signal conditioning Signal conditioning is completed digitally, and all configurations and settings can be changed and verified through CHT1012 software. Digital signal processing is accomplished by advanced DSP to ensure accurate and effective monitoring. Determine the required detection frequency by selecting a wide range of low-pass and high pass filters. The filter range includes: Low pass and high pass filters 8th order elliptical filter Cut off frequency: 1.1-10Hz Low pass and high pass filters
8th order Butterworth filter Cut off frequency: 0.1-1.0Hz signal detection PCH1026 has RMS, Peak, and Peak Peak detectors, which can be selected through CHT1012 software settings and provide various signal types. ● True RMS Average time: 0.01-100 seconds Resolution: 0.01 sec ● Peak or Peak Peak Start time: 1-1000 milliseconds
Attenuation time: 0.1-100 seconds Resolution: 0.1 sec |
Alarm relay PCH1026 provides 4 programmable independent alarm relays with built-in
Standing function/interrupt function. All 4 relays can specify the desired frequency or measurement direction, such as one relay corresponding to a frequency of interest or up to 4 different frequencies for the same relay. By using the provided PC software, individual alarm thresholds, delay times, and lock or unlock functions can be set for each relay.
System malfunction relay PCH1026 provides a system fault relay with interrupt function for optimal fail safe configuration. Various internal faults are detected by the built-in electronic monitoring device, which triggers the system fault relay in testing or monitoring mode, causing it to respond: power failure, overload, processor pause, sensor damage. measurement parameters PCH1026 provides measurement of acceleration, velocity, or displacement values. DC output
PCH1026 provides two to four independent 4-20 mA industrial standard outputs for connecting PLCs, controllers, or computers. Accuracy: ± 0.1 mA
Output impedance:>10MW Load impedance:<330W communication interface
RS-232/RS-485 interface Bus communication Standard: Modulation bus (Modbus) RTU based on both RS-232 and RS-48 5.
Optional: (OEM user solution) such as CANopen, InterBUS, ProfBUS, DeviceNET, etc. DC power supply Voltage range: 20-30V
Maximum power consumption: 7W Size/Weight |
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