Product 描述
The Bently Nevada 990-04-50-01-00 Vibration Transmitter is a loop-powered, two-wire device designed to provide a 4–20 mA vibration signal. It is optimized for OEM applications such as centrifugal air compressors, motors, pumps, and fans where basic vibration monitoring is required. The 件 integrates signal conditioning and supports the 3300 NSv proximity probe system, delivering peak-to-peak measurements for trending and basic protection.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input | 3300 NSv Proximity Probe |
| Output | 4–20 mA DC (loop-powered) |
| Accuracy | ±1.5% / full scale |
| Frequency Range | 5 Hz to 6,000 Hz |
| Probe Gap Range | 0.5 to 1.75 mm |
| Temperature Range (Transmitter) | -35°C to +85°C |
| Temperature Range (Probe) | -52°C to +177°C |
| Humidity | 100% condensing |
| Mounting | DIN rail or bulkhead |
| Power Supply Range | 12 to 35 VDC |
| Loop Resistance (Max) | 1,000 Ω @ 35 VDC |
| Signal Defeat/NOT OK Logic | Output < 3.6 mA within 100 µs |
| Dimensions | 100.1 x 73.9 x 53.3 mm |
| 重量 | 0.43 kg |
Applications
-
Centrifugal air compressors
-
Small industrial pumps
-
Electric motors
-
HVAC fans
-
OEM machinery with limited diagnostic needs
-
General-purpose vibration level trending
Advantages
-
Simple 4–20 mA signal integration
-
Internal Proximitor sensor eliminates external conditioning
-
Test pin for signal loop verification
-
Rugged, potted design for harsh environments
-
支持s diagnostics via dynamic output (non-isolated)
-
Easy installation with DIN rail or bulkhead options
FAQs
Q1: What type / probe is compatible with the 990 Transmitter?
A1: It is compatible with the 3300 NSv Proximity Probe system.
Q2: Can I use the transmitter for critical machinery diagnostics?
A2: No, it is meant for general vibration trending and does not capture dynamic signals for full diagnostics.
Q3: What is the power supply requirement?
A3: It requires a 12 to 35 VDC power supply.
Q4: How is the output delivered?
A4: The 件 outputs a 4–20 mA signal proportional to the vibration level.
Q5: Is the dynamic output isolated?
A5: No, the dynamic “PROX OUT” signal is non-isolated. Use the 122115-01 Test Adapter for isolation.
Q6: What happens in case / a sensor fault?
A6: The output drops below 3.6 mA to indicate a “NOT OK” condition.
Q7: Can it be installed in hazardous areas?
A7: Yes, it supports Zone 2/Div 2 hazardous location approvals.
Q8: Is the device field adjustable?
A8: Yes, it has zero and span adjustment potentiometers under the label.
Q9: What kind / mounting is supported?
A9: DIN rail and bulkhead mounting are both supported.
Q10: What is the main limitation compared to continuous monitoring systems?
A10: It cannot support diagnostics such as phase, gap, or alarm bypass functions and doesn’t integrate with diagnostic platforms like System 1.
Related or Similar 型号s
| 型号 | 描述 | Dimensions (mm) | 重量 (kg) |
|---|---|---|---|
| 990-05-70-02-05 | Vibration Transmitter, 7m system, bulkhead | 100.1 x 73.9 x 53.3 | 0.43 |
| 990-08-50-01-05 | Vibration Transmitter, 8 mils full scale | 100.1 x 73.9 x 53.3 | 0.43 |
| 990-10-50-03-05 | Vibration Transmitter, 10 mils, DIN+bulk | 100.1 x 73.9 x 53.3 | 0.43 |
| 990-04-70-01-01 | Vibration Transmitter, 4 mils, 7m DIN rail | 100.1 x 73.9 x 53.3 | 0.43 |
| 990-05-50-02-00 | Basic model, 5 mils, 5m bulkhead mount | 100.1 x 73.9 x 53.3 | 0.43 |
| 990-04-70-02-05 | ATEX approved, 7m cable, bulkhead mount | 100.1 x 73.9 x 53.3 | 0.43 |
Popular 型号s from Bently Nevada
| 型号 | 描述 | Dimensions (mm) | 重量 (kg) |
|---|---|---|---|
| 3500/42M | Proximitor Seismic Monitor | 241.3 x 24.9 x 99.1 | 0.46 |
| 3500/22M | Transient Data Interface Module | 241.3 x 24.9 x 99.1 | 0.45 |
| 3500/15 | Power Supply Module | 241.3 x 24.9 x 99.1 | 0.50 |
| 3500/20 | Rack Interface Module | 241.3 x 24.9 x 99.1 | 0.47 |
| 3500/25 | Keyphasor Module | 241.3 x 24.9 x 99.1 | 0.49 |
| 330180-91-CN | 3300 XL Proximitor Sensor (China version) | 98.3 x 30.5 x 30.5 | 0.41 |
公司信息
E-mail: [email protected]
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Add: 中国福建省厦门市思明区吕岭路2号阿里山大厦，邮编：361006
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