Bently Nevada 990-05-70-03-05 | Vibration Transmitter

990-05-70-03-05 Vibration Transmitter Technical Specifications

Brand: Bently Nevada
Model: 990-05-70-03-05
Suffix Meaning:

• 05: Full-Scale Option (0-5 mils pp)
• 70: System Length (7.0 meters)
• 03: Mounting Option (DIN clips and screws)
• 05: Agency Approval (ATEX Zone 0/2, CSA Div 2, ABS maritime)

Performance:

• Operating Temperature: -35°C to +85°C (-31°F to +185°F).
• Storage Temperature: -52°C to +100°C (-62°F to +212°F).
• Accuracy: ±1.5% full-scale range with 4 to 20 mA loop output.
• Minimum Target Size: 9.5 mm diameter.
• Maximum Loop Resistance: 1,000 Ω at 35 Vdc.

Construction:

• Probe Cable: 75Ω coaxial, FEP insulated, optional AISI 302 SST armor.
• Probe Tip: Polyphenylene sulfide (PPS) for durability.

Electrical:

• Power Supply: 12-35 Vdc input, with 28 V typical for hazardous locations.
• Signal Output: 4-20 mA over full-scale range in a 2-wire configuration.

Frequently Asked Questions (FAQ)

Q: Can the 990 Vibration Transmitter be used in hazardous zones?
A: Yes, it is approved for ATEX Zone 0/2 and CSA Division 2 locations.

Q: What is the maximum allowable cable length?
A: The maximum cable length for the Proximitor Sensor Output is 3 meters (10 feet).

Q: Is the transmitter suitable for maritime applications?
A: Absolutely, it is certified by ABS for maritime use.

Q: How accurate is the vibration measurement?
A: The transmitter maintains accuracy within ±1.5% over the full-scale range.

Q: What is the required gap between the probe and the target?
A: The probe gap must be between 0.5 and 1.75 mm for optimal performance.

For more detailed information:990 Vibration Transmitter Datasheet