Bently Nevada 990-05-70-01-CN 2-wire loop-powered vibration transmitter

Bently Nevada 990-05-70-01-CN Technical Specifications 
Brief Summary
The Bently Nevada 990-05-70-01-CN is a 2-wire loop-powered vibration transmitter, accepting input from 3300 NSv proximity probes, with 4-20 mA output, 10–30 VDC power, -40°C to +125°C operation, IP67 protection, and ±1.5% accuracy, designed for machinery vibration monitoring in industrial OEM and process control systems.
Detailed Technical Specifications
1. Core Identity & Function
The 990-05-70-01-CN is a loop-powered vibration transmitter from Bently Nevada, part of the 990 series. It integrates a preamplifier, accepting signals from 3300 NSv non-contacting proximity probes and matching extension cables (5m/7m system lengths available). It converts vibration peak values into a proportional 4-20 mA industry-standard output for machinery protection, alarm, and control in industrial automation systems.
2. Electrical Specifications
Power Supply: 10–30 VDC (loop-powered, 2-wire configuration).
Input: 1 channel, compatible with 3300 NSv proximity probes (1/4-28 UNF, M8×1, M10×1 threads, with/without armor) and extension cables.
Output: 4-20 mA DC (proportional to vibration peak amplitude); accuracy ±1.5% of full-scale range.
Diagnostic Output: Non-isolated “Prox Out” and “COM” terminals, plus coaxial connector for dynamic vibration and gap voltage signals (for troubleshooting).
Sensitivity: 7.87 mV/μm (compatible with 3300 NSv probes).

3. Measurement Performance
Frequency Response: 5 Hz to 6000 Hz.
Full-Scale Range: 100 μm peak (custom ranges available).
Linearity: ±1.5% over the full-scale range.
Dynamic Range: 0–500 Hz (vibration measurement).
4. Mechanical & Environmental Ratings
Protection Rating: IP67 (dust-tight and water-submersible).
Operating Temperature: -40°C to +125°C.
Storage Temperature: -40°C to +125°C.
Mounting: DIN rail clip or panel-mount with screws; standard wrench flats for installation.
Weight: Approximately 150 g (typical).
Housing: Sealed for 100% condensation environments.

5. Key Features & Compliance
Integrated Preamp: No external preamplifier required.
Adjustability: Non-interactive zero and span potentiometers for loop calibration.
Power-Up Suppression: Eliminates signal errors from line transients.
Fault Detection: Non-OK circuit prevents false alarms due to probe failure or loose connections.
Compliance: EMC (EN 61000-6-2/-6-4), ATEX, RoHS, ABS maritime certified.
Key Specs at a Glance
Brand: Bently Nevada
Model: 990-05-70-01-CN
Type: Loop-powered vibration transmitter
Power: 10–30 VDC (2-wire)
Input: 3300 NSv proximity probe
Output: 4-20 mA DC (±1.5% accuracy)
Frequency Response: 5–6000 Hz
Full-Scale: 100 μm peak
Temp Range: -40°C to +125°C
Protection: IP67
Mounting: DIN rail/panel
Weight: ~150 g