Overview
Specification
| Specification | Details |
|---|---|
| Model Number | 990-05-70-01-01 |
| Product Type | Vibration Transmitter, 2-wire loop-powered |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Measured Parameter | Shaft vibration, peak-to-peak displacement |
| Input Sensor | One non-contacting proximity probe with extension cable |
| Output Signal | 4–20 mA proportional to vibration level |
| Power Supply | Loop-powered, 12 to 35 V DC |
| Loop Accuracy | ±1.5% of full-scale output |
| Maximum Loop Resistance | Up to 1,000 Ω at 35 V DC |
| Current Limiting | Approximately 23 mA |
| Zero / Span Adjustment | External, non-interacting potentiometers |
| Fault Indication (NOT OK) | Output drops below 3.6 mA during detected fault |
| Fault Recovery Time | Approximately 2–3 seconds after fault clearance |
| Power-up Inhibit | Output held below 3.6 mA during startup delay |
| Frequency Response | 5 Hz to 6,000 Hz (±3 dB) |
| Operating Temperature | –35°C to +85°C (–31°F to +185°F) |
| Storage Temperature | –51°C to +100°C (–60°F to +212°F) |
| Humidity Rating | 5–95% non-condensing |
| Mounting Method | DIN rail mounting |
| Housing | Rugged industrial enclosure |
| Compliance | CE and regional approvals, market dependent |
| Full-scale Option | 0–5 mils pp (0–125 μm pp) |
| System Length Option | 5.0 meters (16.4 feet) |
| Mounting Option | Bulkhead screws |
| Agency Approval Option | CSA Division 2 |
FAQ
A1: It supports one non-contacting 3300 NSv proximity probe with extension cable.
Q2: How quickly does it indicate a fault?
A2: Output drops below 3.6 mA within 100 μs upon fault detection.
Q3: What is the operating temperature range?
A3: It operates reliably from –35°C to +85°C (–31°F to +185°F).
Q4: Can it be mounted on DIN rails?
A4: Yes, it supports DIN rail installation, with optional bulkhead screw mounting.
Bently Nevada Top Products
| 3500 | 3300 | Probe&Cable |
| 3500/05-01-01-00-00-00 | 3300/05-22-00-00 | 990-04-70-01-00 |
| 3500/05-01-01-05-00-01 | 3300/05-24-00-00 | 990-04-70-02-00 |
| 3500/05-01-02-05-00-01 | 3300/45-02-01-03-00 | 990-04-XX-01-00 |
| 3500/05-01-03-05-00-01 | 3300/45-02-02-03-00 | 990-04-XX-03-00 |
| 3500/05-02-04-00-00-00 | 3300/48-01-01-01-00 | 990-05-50-02-01 |
| 3500/05-02-04-00-00-01 | 3300/48-02-01-00-00 | 990-05-70-01-00 |
| 3500/05-02-05-00-00-00 | 3300/50-01-01-00-00 | 990-05-70-01-01 |
| 3500/05-02-05-00-00-01 | 3300/50-02-01-00-00 | 990-05-70-02-00 |
| 3500/20 125744-02 | 3300/20-13-02-01-00-00 | 990-05-70-03-00 |
| 3500/22 125768-01 | 3300/40-13-01-01-00-00 | 990-05-XX-03-05 |
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