The BENTLY NEVADA 176449-09 3500/70M Recip Impulse Velocity Monitor is a 4-channel device for monitoring compressor crankcase and crosshead vibration in reciprocating compressors. It accepts input from seismic transducers, conditions signals for vibration measurements, and compares them to user-set alarms.
Each channel can be programmed using the 3500 Rack Configuration Software for functions like Impulse Acceleration, Acceleration 2, Recip Velocity, and Low-Frequency Recip Velocity. Channels are grouped in pairs, allowing them to perform different or similar functions.
The main purposes of the 3500/70M Recip Impulse Velocity Monitor are:
- Machinery protection by continuously comparing parameters to configured alarms.
- Providing essential information for compressor operations and maintenance.
Each channel generates static values based on its input, and you can set alert and danger thresholds for these values.
Technical Specifications:
- Signal inputs: 1 to 4 proximity probe signals
- Signal range: 10 to 100 mVrms
- Frequency range: 3 to 30,000 Hz
- Accuracy: ±0.5% of reading
- Resolution: 0.1 mils/sec
- Measurement types: Peak velocity, peak impulse, average velocity, average impulse
- Output signals: 4 analog output signals (0 to 10 V or 4 to 20 mA), 4 digital output signals (dry contact)
- Alarm relay outputs: 4 alarm relay outputs (dry contact)
- Communication ports: RS-232, RS-485, Ethernet
- Power requirements: 120 or 240 VAC, 50/60 Hz
- Operating temperature range: 0 to 55 °C (32 to 131 °F)
- Storage temperature range: -20 to 70 °C (-4 to 158 °F)
Physical:
Monitor Module (Main Board):
- Dimensions (Height x Width x Depth): 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in)
- Weight: 0.91 kg (2.0 lb)
I/O Modules (non-barrier):
- Dimensions (Height x Width x Depth): 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in)
- Weight: 0.20 kg (0.44 lb)
I/O Modules (barrier):
- Dimensions (Height x Width x Depth): 241.3 mm x 24.4 mm x 163.1 mm (9.50 in x 0.96 in x 6.42 in)
- Weight: 0.46 kg (1.01 lb)
Download BENTLY NEVADA 176449-09 3500/70M Recip Impulse Velocity Monitor PDF file:3500-70M-Datasheet
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