Vibration Analyzer 2 Channel Data Collector / Analyzer / Balancer

Imbalance is one of the main causes of machine vibration. It is estimated that about 50 percent of all the faults are caused by imbalance of rotors. The best mean for getting rid of mechanical imbalance is on-site balancing. HG904 Machinery Analyzer/Balancer is especially useful for this purpose. It can measure the intensity of the vibration; diagnose vibration cause by analyzing the frequency spectrum. It can also be used to measure the rotation speed and vibration phase, and to calculate the imbalance weight and location.

Features:

• Easy to use
• Vector illustration, the balancing process and result are shown clearly at a glance
• Storage of 10 rotors balancing data
• Selectable of trial mass remove or remain
• Decompose of balancing result to two assigned location
• Trial weight range calculated according to the weight of rotor, rotation speed, radius and required balance grade
• Trial mass validity judged automatically
• Measuring RPM, amplitude and phase
• On-site 400 lines FFT spectrum and diagnosis function
• Dual-channel simultaneous data collection
• Hardware envelop demodulation for bearing and gear diagnosis
• Transfer function for measuring natural frequency
• Waveform and spectrum display by large LCD
• Storage of vibration values and vibration waveform

Operation condition

• Temperature range: from 5°C to 50°C
• Relative humidity: < 85%, unsaturated
• Without caustic gases
• Without strong electric-magnetic field & strong impact

Safety

The HG904 are not permitted to contact with running part of machine.

Specifications

• Rotation speed range for dynamic balancing: 70-60,000 r/min
• Auto-range and manual-range selectable
• Measuring accuracy of vibration: 5 %

• Sensors: Piezoelectric accelerometer, Magnetoelectricity velocity, Eddy displacement and etc.
• 8^th-order ellipse anti-aliasing filter, RPM band-pass filter
• Input signal: Accelerometer, and voltage

• Amplitude spectrum analysis: 100 lines to 400 lines (zoom), Hanning windowed
• Frequency span of spectrum analysis: 100, 200, 500, 1K, 2K, 5K, 10KHz(only for 1-channel sampling)
• Data storage: 400 waveforms of 1024-points and 400 data sets

• Amplitude ranges & Frequency Response for overall vibration measurement:

• 	Amplitude ranges	Frequency Response
  Displacement	0.003 – 5 mm peak-peak	10 – 500 Hz
  Velocity	0.2 – 200mm/s true RMS	10 – 1000 Hz
  Acceleration	0.5 – 250m/s2 peak	20 – 5000 Hz
  Envelope	0.1 – 20unit true RMS	5-1000Hz from 15-40 KHz
  Voltage	0.1 – 10V peak-peak	10 – 10000 Hz

• Notepad: 10 condition codes for visual inspection
• Output: USB for communication with PC
• Power: Ni-MH rechargeable battery for 8 hours continuous operation, low battery warning
• Operating Environment: 0~55 ^oC, 90% humidity non-condensing
• Rotating speed measurement with photocell sensor
• Dynamic Range: 60dB with 48dB adjustable gain range
• Dimensions: 21×13×4 cm; Weight: 1.2 kg (Include batteries)

Pack List
HG904 Vibration Data Collector 1
Accelerometer 2
Magnetic Mount 2
Steel Extension Probe 1
Battery Charger 1
Accelerometer Cable 3
RS232c Communication Cable 1
Balancing Module 1
Tacho/Trigger Sensor and cable 1
Reflector Paper set 1
Quick Start Guide 1
Software CD 1
Certificates of HG904 and sensors 3
Carrying Case 1