3500/70-01-00 Bently Nevada 4-Channel Vibration Monitor

3500/70-01-00 Bently Nevada Recip Impulse/Velocity Monitor – 4-Channel Protection for Reciprocating Compressors

Key Technical Specifications

• Brand: Bently Nevada
• Model: 3500/70-01-00
• Series: 3500/70M Recip Impulse/Velocity Monitor
• Input channels: 1 to 4 proximity probe signals
• Input impedance: 10 kΩ acceleration input, >1 MΩ velocity input
• Power consumption: 7.7 watts nominal
• Sensitivity – Impulse Acceleration: 0.51–11.72 mV/(m/s²), 5–115 mV/g
• Sensitivity – Acceleration 2: 0.51–11.72 mV/(m/s²), 5–115 mV/g
• Sensitivity – Recip Velocity: 3.54–22.64 mV/(mm/s), 90–575 mV/(in/s)
• Sensitivity – Low Frequency Recip Velocity: 3.54–22.64 mV/(mm/s), 90–575 mV/(in/s)
• Accuracy: Within ±0.33% of full-scale typical, ±1% maximum (exclusive of filters)
• Recorder output: +4 to +20 mA proportional to monitor full-scale
• Recorder resolution: 0.3662 µA maximum
• Recorder update rate: <100 milliseconds
• Recorder accuracy: Within ±0.05 mA, ±0.14 mA over temperature range

Frequency Response and Filter Quality

• Bias filter: -3 dB at 0.01 Hz, 1-pole low-pass
• Not OK filter: -3 dB at 2400 Hz, 1-pole low-pass
• Integration filter (Recip Velocity): -3 dB at 0.34 Hz, 1-pole low-pass
• RMS static values: -3 dB at 0.1 Hz, 1-pole low-pass
• Peak static values: -3 dB at 0.3 Hz, 1-pole low-pass
• 1X & 2X Vector filter: Constant Q filter with bandwidth = ±3% running speed, Q = 16.7
• High-pass filter quality: 4-pole, 80 dB per decade, 24 dB per octave
• Low-pass filter quality (Recip Velocity): 2-pole, 40 dB per decade, 12 dB per octave

Front Panel Indicators and Buffered Outputs

• OK LED: Shows the monitor operates properly
• TX/RX LED: Shows communication with other 3500 rack modules
• Bypass LED: Shows Bypass Mode status
• Buffered transducer outputs: One coaxial connector per channel on the front
• Output impedance: 550 Ω typical
• Protection: Each connector is short-circuit protected

Environmental Limits and Installation

• Operating temperature with Internal/External Termination Proximitor/Seismic I/O Module: -30°C to +65°C (-22°F to +149°F)
• Operating temperature with Proximitor/Seismic Internal Barrier I/O Module (Internal Termination): 0°C to +65°C (32°F to +149°F)
• Storage temperature: -40°C to +85°C (-40°F to +185°F)
• Humidity: 95% non-condensing
• Rack space: Monitor uses 1 full-height front slot; I/O modules use 1 full-height rear slot
• Monitor module dimensions: 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in)
• Monitor module weight: 0.91 kg (2.0 lb)
• Non-barrier I/O module dimensions: 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in)
• Non-barrier I/O module weight: 0.20 kg (0.44 lb)
• Barrier I/O module dimensions: 241.3 mm x 24.4 mm x 163.1 mm (9.50 in x 0.96 in x 6.42 in)
• Barrier I/O module weight: 0.46 kg (1.01 lb)

Barrier Parameters for Hazardous Areas

• Proximitor barrier circuit Vmax (PWR): 26.80 V
• Proximitor barrier circuit V (SIG): 14.05 V
• Proximitor barrier circuit Imax (PWR): 112.8 mA
• Proximitor barrier circuit Imax (SIG): 2.82 mA
• Proximitor barrier circuit Rmin (PWR): 237.6 Ω
• Proximitor barrier circuit Rmin (SIG): 4985 Ω
• Channel entity Vmax: 28.0 V
• Channel entity Imax: 115.62 mA
• Seismic barrier circuit Vmax (PWR): 27.25 V
• Seismic barrier circuit Imax (PWR): 91.8 mA
• Seismic barrier circuit Rmin (PWR): 297 Ω

Packing List

• 1 x Bently Nevada 3500/70-01-00 Recip Impulse/Velocity Monitor
• 1 x Prox/Velom I/O Module with Internal Terminations
• 1 x Mounting hardware kit
• 1 x Quick start guide

Shipping and Support

• We keep this 3500/70-01-00 in stock and ship within 5 days.
• We use FedEx, UPS, and DHL for fast and reliable delivery.
• We accept returns within 30 days.
• All units are brand new and original.

FAQ

• Q: What is the input impedance of the 3500/70-01-00?
  A: The acceleration input is 10 kΩ, and the velocity input is greater than 1 MΩ.
• Q: Which transducer types does this monitor accept?
  A: It accepts 1 to 4 proximity probe signals and seismic transducers.
• Q: What is the recorder output range?
  A: The recorder output provides +4 to +20 mA proportional to monitor full-scale.
• Q: What is the operating temperature range?
  A: It depends on the I/O module. With Internal/External Termination Proximitor/Seismic I/O, it is -30°C to +65°C.
• Q: Does the 3500/70-01-00 support hazardous area approvals?
  A: Yes, barrier parameters apply to CSA-NRTL/C and CENELEC approvals.
• Q: How many rack slots does this monitor need?
  A: The monitor uses 1 full-height front slot, and the I/O module uses 1 full-height rear slot.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628

Partner NexAuto Technology Limited : https://www.nex-auto.com/