Excellent PLC
Product Introduction
The Bently Nevada 990-05-70-02-05 Vibration Transmitter is part of the 990 Vibration Transmitter series, designed to provide continuous monitoring of machine vibration in industrial environments. It converts vibration signals into a standard 4-20 mA output, enabling integration with process control and automation systems such as PLCs, DCS, and SCADA.
This transmitter is engineered for reliability in demanding applications, ensuring early detection of mechanical faults such as imbalance, misalignment, looseness, and bearing wear. It is widely used across power generation, oil & gas, petrochemicals, and heavy manufacturing industries where equipment uptime and safety are critical.
Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | 990-05-70-02-05 |
| Series | Bently Nevada 990 Vibration Transmitter |
| Input Signal | Proximity probe or accelerometer |
| Output Signal | 4-20 mA proportional to vibration |
| Frequency Response | 10 Hz – 1 kHz (typical) |
| Power Supply | 18–36 VDC |
| Mounting Style | Panel or field mounted |
| Dimensions | 100.1 x 73.9 x 53.3 mm |
| Weight | 0.43 kg |
| Operating Temperature | -35 °C to +85 °C |
| Humidity Tolerance | Up to 95% non-condensing |
| Compliance | CE, EMC, ATEX (depending on configuration) |
Product Applications
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Pumps and compressors in petrochemical facilities
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Turbines in power generation plants
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Motors and gearboxes in manufacturing industries
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Fans and blowers in HVAC and industrial systems
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Critical rotating machinery in oil & gas platforms
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General vibration monitoring where integration with PLC/DCS is required
Product Advantages
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Seamless Integration: Provides standard 4-20 mA output for compatibility with most industrial automation systems.
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Reliable Monitoring: Ensures early detection of vibration-related faults, reducing unplanned downtime.
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Compact and Robust Design: Built for harsh industrial environments with a compact form factor.
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Versatile Applications: Supports a wide variety of rotating machinery.
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High Accuracy: Offers stable and precise vibration measurement across a wide frequency range.
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Proven Reliability: Backed by Bently Nevada’s reputation for durability and long-term performance.
FAQ
Q1: What type of sensors can be connected to the 990-05-70-02-05 transmitter?
A1: It supports proximity probes and accelerometers depending on configuration, enabling flexibility in monitoring setups.
Q2: What is the typical output signal from the transmitter?
A2: The transmitter provides a standard 4-20 mA output proportional to the measured vibration.
Q3: Can the transmitter be integrated directly into a PLC system?
A3: Yes, the 4-20 mA output allows direct integration with most PLC, DCS, and SCADA systems.
Q4: What is the frequency response range of the transmitter?
A4: The typical frequency response is between 10 Hz and 1 kHz, suitable for most industrial vibration monitoring applications.
Q5: Does the transmitter require external power?
A5: Yes, it operates with a power supply between 18 and 36 VDC.
Q6: Is the transmitter suitable for hazardous environments?
A6: Yes, certain configurations comply with ATEX and other safety certifications for hazardous locations.
Q7: How does the transmitter help in predictive maintenance?
A7: By continuously monitoring vibration levels, it enables early detection of machine faults, supporting predictive maintenance strategies.
Q8: What is the maximum operating temperature of the unit?
A8: It can operate reliably in environments with temperatures up to +85 °C.
Q9: Can the transmitter filter specific vibration frequencies?
A9: Yes, it includes internal filtering options designed to reduce noise and focus on relevant frequency ranges.
Q10: Is calibration required for the transmitter?
A10: Periodic calibration is recommended to ensure measurement accuracy, though the device is factory calibrated for initial use.
Recommended Models
| Model Number | Description |
|---|---|
| 990-05-70-01-00 | Standard 990 Vibration Transmitter |
| 990-05-70-02-00 | 990 Transmitter with alternate output |
| 990-05-70-02-05 | Advanced vibration transmitter (this model) |
| 990-05-70-03-00 | Extended temperature range model |
| 990-05-70-03-05 | Hazardous area certified model |
| 990-05-70-04-00 | High-sensitivity vibration transmitter |
Popular Bently Nevada Models
| Model Number | Description |
|---|---|
| 330103-00-05-10-02 | 3300 XL Proximity Probe |
| 330180-91-05 | 3300 XL Extension Cable |
| 330850-90-05 | 3300 XL NSv Proximity Sensor |
| 330130-045-00-00 | 3300 XL Proximitor Sensor |
| 3500/22M | Transient Data Interface Module |
| 3500/42M | Proximitor/Seismic Monitor |
| 3500/32M | Relay Module |
| 3500/93 | System Display Module |
