Vibro-Meter IOCT16T

Core Function Features

1. 16 fully independent configurable mixed signal channels, support acceleration, velocity, displacement, temperature and speed sensor input
2. Built-in programmable constant current excitation for ICP/IEPE piezoelectric accelerometers
3. Per-channel configurable 8-order anti-aliasing low-pass/high-pass filters
4. 16 digital transistor outputs for driving local status indicators and small actuators
5. Channel-by-channel galvanic isolation to eliminate cross-channel signal interference
6. On-board pre-event/post-event waveform data cache with adjustable recording duration
7. Integrated sensor health monitoring: cable break, short circuit, sensor bias voltage abnormal detection
8. Real-time edge computing on module hardware to reduce CPU processing load
9. VME backplane high-speed parallel bus communication with VM600 rack main controller

Technical Performance Parameters

• Power Input: 24VDC ±10%, rated power consumption 11W
• Single Channel Sampling Rate: Max 98kHz software adjustable
• ADC Resolution: 24-bit per channel, total harmonic distortion ≤ -96dB
• Input Signal Types: ±10V voltage, 4–20mA current, IEPE charge signal, TTL speed pulse
• Dynamic Frequency Bandwidth: 0.16Hz ~ 20kHz
• Digital Output Rating: 24VDC, max 0.5A per channel
• Operating Temperature: -20°C ~ +60°C
• Storage Temperature: -30°C ~ +70°C
• Humidity: 5%–95% RH non-condensing

Material & Structural Characteristics

• Main PCB: Double-sided gold-plated industrial PCB, full surface conformal coating against moisture and salt mist
• Front Panel: Black aluminum alloy with status LED indicators for each channel, module running fault indicator
• Terminal Interface: Removable pluggable spring terminal blocks, convenient offline wiring
• Dimensions: 167mm × 148mm × 55mm
• Net Weight: 0.23kg
• Protection Grade: IP20

Working Principle

1. Multi-path sensor analog signals access independent front-end conditioning circuits for amplification, impedance matching and noise filtering
2. High-speed 24-bit ADC converts analog signals to digital sampling data; on-board FPGA executes real-time vibration feature extraction (RMS, peak, crest factor, spectrum energy)
3. Processed digital data transmits to rack CPU via high-speed VME backplane bus synchronously
4. When monitoring parameters exceed alarm thresholds, module digital outputs switch to drive external indication devices
5. Built-in buffer memory automatically captures vibration waveform data before and after fault trigger points for post-fault failure analysis

Installation Requirements

1. Standard VM600 rack slot installation, fixed by front panel locking screws; rack must be horizontally mounted
2. Separate analog sensor cables and digital control output cables in different wiring ducts
3. All shielded sensor cable shielding layers single-point grounded at cabinet earth bar
4. Ensure rack internal cooling fan operates normally to maintain module operating temperature below 60°C

Application Scenarios

• Multi-bearing position monitoring of large steam turbines and generators
• Multi-stage centrifugal compressor full unit vibration monitoring
• Mining large fan, induced draft fan multi-point condition monitoring
• Marine main engine and auxiliary rotating machinery predictive maintenance

Usage Precautions

1. All sensor wiring must use shielded twisted-pair cables to reduce electromagnetic interference
2. Do not apply voltage exceeding ±12V to analog input channels to avoid front-end circuit burnout
3. Complete channel parameter configuration and sensor matching calibration before system startup
4. Regularly inspect terminal block locking state in vibration-intensive working environments
5. Avoid deploying modules in environments with corrosive chemical gas without cabinet air purification