Product details
π Overview
The Bently Nevada 990-04-70-01-05 is a 2-wire vibration transmitter designed for non-contact vibration measurement in industrial applications. Manufactured in the USA, it is known for its accuracy, temperature stability, and compatibility with various test equipment. This transmitter is suitable for use in hazardous environments, offering flexibility with a range of system configurations.
π§ Key Features
- Made in the USA, ensuring quality and durability.
- 2-wire configuration for simple integration into existing systems.
- Agency approvals: CSA Division 2, ATEX Zone 0, Zone 2, ABS maritime approval.
- Wide temperature stability: Β±10% of 7.87 mV/Β΅m (200 mV/mil) from 0Β°C to +70Β°C.
- Compatible with ungrounded, portable test equipment, with optional test adapter for grounded equipment.
- Frequency response of 5 Hz to 6,000 Hz with Β±0, 3 dB.
π‘ Technical Specifications
| π Parameter | π Specification |
|---|---|
| π§ Brand | Bently Nevada |
| π’ Model | 990-04-70-01-05 |
| π Full-scale Option | 0-4 mils pp (0-100 ΞΌm pp) |
| π System Length Option | 7.0 meters (23.0 feet) |
| π© Mounting Option | 35 mm DIN rail clips |
| π Agency Approvals | CSA Division 2, ATEX Zone 0, ATEX Zone 2, ABS maritime approval |
| π‘ Temperature Stability | Β±10% of 7.87 mV/Β΅m (200 mV/mil) from 0Β°C to +70Β°C |
| πΆ Frequency Response | 5 Hz to 6,000 Hz Β±0, 3 dB |
| βοΈ Weight | 0.43 kg |
| π Power Supply | +12 to +35 Vdc input |
| π Signal Output | 4-20 mA |
| π Probe Gap | 0.5 to 1.75 mm (20-55 mils) |
| βοΈ Maximum Loop Resistance | 1,000 β¦ at 35 Vdc |
| π§ͺ Test Equipment Compatibility | Compatible with ungrounded, portable test equipment |
π Application
This vibration transmitter is perfect for monitoring mechanical systems and machinery in industrial settings. It is especially useful for vibration analysis in power plants, manufacturing facilities, and other critical environments where early detection of vibrations is necessary for predictive maintenance and performance monitoring.
β FAQ
- What is the function of the 990-04-70-01-05?
It is a 2-wire vibration transmitter that converts signals from proximity probes into a 4-20 mA output for real-time machine vibration monitoring. - Can the transmitter be used with grounded test equipment?
Yes, if using grounded AC-powered test equipment, the 122115-01 Test Adapter should be used for signal isolation. - What is the typical range of the vibration signal?
The linear range of the proximity output is 1.4 mm (55 mils), starting at approximately 0.25 mm (10 mils) from the target surface. - How accurate is the 4-20 mA output?
The 4-20 mA output has a loop accuracy of Β±1.5% over the specified full-scale range. - What approvals does this transmitter have?
The transmitter is approved for use in hazardous environments with CSA Division 2, ATEX Zone 0, Zone 2, and ABS maritime approval.
For more detailed information:990 Vibration Transmitter Datasheet
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