Bently Nevada 990-04-07-01-05 Vibration Transmitter

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Phone/WhatsApp:

Email:

Frida

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Product Introduction

Product Model:990-04-07-01-05

Type: Vibration Transmitter

Manufacturer: Bently Nevada

Shipment: DHL, UPS, Fedex, and TNT

Description:
The 990-04-07-01-05 is a loop-powered vibration transmitter designed for OEMs to integrate simple 4–20 mA vibration monitoring into machinery controls, compatible with Bently Nevada 3300 NSv proximity probes. It features a 0–4 mils (0–100 µm) full-scale range, 7 m system length, DIN rail mounting, and carries comprehensive hazardous area certifications including ATEX Zone 0/2 and CSA Div 2 for use in explosive atmospheres. With robust environmental ratings, integrated diagnostics, and a potted enclosure for high humidity, this transmitter provides reliable vibration trending for centrifugal compressors, pumps, and fans in demanding industrial applications.

Specification:

Input Power: +12 to +35 V DC at transmitter terminals.
Output Signal: 4 to 20 mA DC, two-wire configuration.
Full-Scale Vibration Range (Option 04): 0–4 mils peak-to-peak (0–100 µm pp).
System Length (Option 07): 7.0 meters (23.0 feet) total system length (probe + extension cable).
Mounting Option (Option 01): 35 mm DIN rail clips.
Agency Approval Option (Option 05): CSA Division 2, ATEX Zone 0, ATEX Zone 2, and includes ABS maritime approval.
Loop Accuracy: Within ±1.5% over full-scale range (measured from TEST input to voltage across 250 Ω loop resistance).
Maximum Loop Resistance: 1,000 Ω (including cable) at 35 V DC.
Current Limiting: Typically 23 mA.
NOT OK/Signal Defeat: Output drops to <3.6 mA within 100 µs after fault; restores within 2–3 seconds after fault clears.
Probe Gap Requirement: 0.5 to 1.75 mm (20 to 55 mils) from target.
PROX OUT Linear Range: 7.87 mV/µm (200 mV/mil) ±6.5% typical (±10% worst-case) over 0.25 mm increments.
Frequency Response: 5 Hz to 6,000 Hz (+0, -3 dB).
Minimum Target Size: 9.5 mm (0.375 in) diameter.
PROX OUT Cable Max Length: 3 meters (10 feet) from BNC connector.
Operating Temperature (Transmitter): -35°C to +85°C (-31°F to +185°F).
Operating Temperature (Probe): -52°C to +177°C (-62°F to +351°F).
Relative Humidity: 100% condensing (non-submerged), with connector protection.
Transmitter Weight: 0.43 kg (0.9 lb).
Total System Weight: 0.82 kg (1.8 lb) typical.