Overview
- Product No. : 330980-70-CN
- Product Type : 3300 XL NSv Proximitor Sensor
- Total Length and Mounting Option: 70 means 7.0 meters (23.0 feet) system length, panel mount
- Agency Approval Option: CN means Staring from 1st-June-2015, all the Bently Nevada products used in China end user site for hazardous area applications will use –CN in the agency approve option and will use -00 for non-hazardous area applications.
More Parameters
The Bently Nevada 330980-70-CN sensor has high sensitivity and a wide frequency response, which can effectively capture small changes before mechanical failure. Its rugged construction and excellent anti-interference ability enable it to work stably under harsh conditions. It is suitable for use in multiple fields such as oil and gas, power generation and manufacturing to ensure equipment reliability and operating efficiency. Unless otherwise noted, the following specifications are for a Bently Nevada 330980-70-CN 3300 XL NSv Proximitor Sensor between 0°C and +45°C (+32°F to +113°F) at a maximum altitude of 2000 m, with a -24 Vdc power supply, a 10 kΩ load, a Bently Nevada supplied AISI 4140 steel target that is 31 mm (1.2 in) diameter or larger, and a probe gap of 1.0 mm (40 mils). The system accuracy and interchangeability specifications do not apply when using a transducer system calibrated to any target other than a Bently Nevada AISI 4140 steel target.
| Frequency Response | 0 to 10 kHz: +0, -3 dB typical, with up to 305 meters (1000 feet) of field wiring. |
| Output resistance | 50 Ω |
| Supply Sensitivity | Less than 2 mV change in output voltage per volt change in input voltage. |
| Recommended Gap Setting | 1.0 mm (40 mils) |
| Sensitivity | 3.94mV/mm/s (100 mV/in/s) ±5%. |
| Incremental Scale Factor (ISF) | 7.87 V/mm (200 mV/mil) +12.5%/-20% including interchangeability error when measured in increments of 0.25 mm (10 mils) over the 1.5 mm (60 mil) linear range. |
| Deviation from best fit straight line (DSL) | Less than ±0.06 mm (±2.3 mils). |
| Power | Requires -17.5 Vdc to -26 Vdc without barriers at 12 mA maximum consumption, -23 Vdc to -26 Vdc with barriers. Operation at a more positive voltage than -23.5 Vdc can result in reduced linear range. |
Keywords: Bently Nevada 330980-70-CN; 330980-70-CN sensor; 330980-70-CN
Tips About Installation
1. Selecting a Suitable Mounting Location
Installation Environmental Requirements: The 3300 XL NSv sensor is designed for use in confined spaces, so when selecting a mounting location, ensure that its surroundings can accommodate the sensor and its cable. The mounting location should also be away from equipment that may generate electromagnetic interference (EMI) that could affect the signal quality of the sensor.
Avoid sources of interference: Try to install the sensor away from strong current cables and other equipment that will produce electromagnetic radiation to reduce signal interference.
2. Maintain the appropriate gap distance
Accurate Gap Adjustment: Sensors work by measuring the displacement of a target object (e.g., a rotating shaft) in a non-contact manner, so it is critical to ensure that the distance between the sensor and the target is within the specified range. Typically, the gap range will be provided by the manufacturer depending on the specific application.
Use a measuring tool: During installation, it is recommended to use an appropriate tool (e.g., ammeter or a specialized measuring tool) to verify that the gap distance is appropriate and to avoid affecting the measurement accuracy due to a gap that is too large or too small.
3. Ensure that the sensor is firmly installed
Brackets and clamps: Sensors must be securely mounted to avoid shifting or loosening due to mechanical vibration. All brackets and clamps should be securely mounted and inspected periodically.
Torque control: During installation, the manufacturer's recommended torque values should be used to secure the sensor to avoid over-tightening which could cause damage, or under-tightening which could cause loosening.
4. Cable Management
Cable routing: Cables should be routed away from moving parts of mechanical equipment and along a fixed path. Ensure that cables are adequately supported to avoid damage to cables caused by excessive bending or stretching.
Cable protection: If installed in areas of high vibration or in harsh environments, it is recommended that cable protection devices (e.g., cable jackets or conduits) be used to protect cables from mechanical damage or environmental corrosion.
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