350900 HT Velocity and Acceleration Sensor
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350900 HT Velocity and Acceleration Sensor Datasheet Bently Nevada Machinery Condition Monitoring Description The 350900 High Temperature Velocity and Acceleration Sensor (HTVAS) provides a continuous acceleration and velocity output, allowing the customer to protect their machine with an velocity signal while simultaneously capturing the acceleration signal for machinery diagnostics. Its design is primarily for use with the 3500/42M and 3500/44M monitors. When attaching the HTVAS to a 3500/42M or 3500/44M monitor you must use the acceleration and velocity signals from the transducer on a separate channel pair (such as channels 1 and 3) or on separate monitors. The 350900 High Temperature Velocity and Acceleration Sensor (HTVAS) separates the high-temperature sensing element from the signal conditioning electronics, with the two permanently connected via a hardline cable. This arrangement allows you to mount the sensing head on surfaces with temperatures as high as +482 °C (+900 °F), while installing the signal conditioning electronics in a cooler location. Eliminating connections between the sensing head and its associated signal conditioning electronics also eliminates a significant source of potential transducer failures (connector problems). This achieves overall transducer system performance comparable to other casemounted vibration transducers, but permits use at significantly higher temperatures. Velocity and acceleration output High temperature operation up to +482°C (+900 °F) Electronics rated to +125°C (+257°F), survivable to +155°C (+31

350900 HT Velocity and Acceleration Sensor Datasheet Most common machine malfunctions (unbalance, misalignment, etc.) occur on the rotor and originate as an increase (or at least a change) in rotor vibration. For any individual casing measurement to be effective for overall machine protection, the system must continually transmit a significant amount of rotor vibration to the machine casing, or mounting location of the transducer. In addition, be careful to install the accelerometer transducer on the bearing housing or machine casing. Improper installation may decrease the transducer...

350900 HT Velocity and Acceleration Sensor Datasheet Specifications Specifications are between +20 °C and +30 °C (+68 °F to +86 °F) with machine casing vibration at 100 Hz (6000 cpm) and with a 10 kΩ load unless otherwise indicated. System Sensitivity over Extended Temperatures Electrical Power Requirements Input Voltage -18 to -30 Vdc; -18 to –28 Vdc for hazardous area approval options. Quiescent Current Transverse Sensitivity Less than 5% of axial sensitivity. Amplitude Linearity ± 1% to 4900 m/s2 (500 g) peak overall acceleration. Mounted Resonant Frequency Maximum Cable Length Case...

350900 HT Velocity and Acceleration Sensor Datasheet System Sensitivity over Extended Temperatures Over a sensor temperature range of -54 °C to +399 °C (-65 °F to +750 °F) and with the electronics between –54 °C to +125 °C (-65 °F to +257°F), the output remains within ± 10% of 1.02 mV/m/s2 (10 mV/g). Physical Sensor Over a sensor temperature range of –54 °C to +482 °C (-65 °F to +900 °F) and with the electronics between –54 °C to +125 °C (-65 °F to +257 °F), the output remains within ± 15% of 1.02 mV/m/s2 (10 mV/g). Output Bias Voltage Acceleration Range Broadband Noise Floor (5 Hz to 2...

350900 HT Velocity and Acceleration Sensor Datasheet Compliance and Certifications Hazardous Area Approvals FCC This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: l For the detailed listing of country and product specific approvals, refer to the Approvals Quick Reference Guide (108M1756) available from Bently.com. This device may not cause harmful interference. This device must accept any interference received, including interference that may cause undesired operation. Ex ia IIC T4: AEx ia IIC T4: Class I, Div 1, Groups A, B, C, D....

350900 HT Velocity and Acceleration Sensor Datasheet Electrical Housing Entity Parameters for Zone 0/1 and Zone 2 Grou p

350900 HT Velocity and Acceleration Sensor Datasheet Hazardous Area Conditions of Safe Use Zone 0/1: Equipment must be connected to equipment, which meets the above listed entity parameters. The cables type A or B (in compliance with EN 60079-25) must respect the cable parameters listed with the entity parameters. This equipment is intrinsically safe and can be used in potentially explosive atmospheres. The intrinsically safe apparatus shall only be connected to an associated intrinsically safe apparatus. The association shall comply with the requirements of EN 60079-25 standard. Operating...

350900 HT Velocity and Acceleration Sensor Datasheet Ordering Information For the detailed listing of country and product specific approvals, refer to the Approvals Quick Reference Guide (108M1756) available from Bently.com. High Temperature Velocity and Acceleration Sensor 350900-AAA A: Integral Cable Length Option 023 HTVAS Field Interconnect Cable 350901-AAA A: Cable Length 010

350900 HT Velocity and Acceleration Sensor Datasheet Stainless steel overbraided MI cable 0.283 diameter through (typical), 4 places Length 1-12 UNF-2A MIL-DTL-83723/90 connector Figure 1: 350900 Transducer Dimensional Drawing Dimensions are in millimetres [inches]

350900 HT Velocity and Acceleration Sensor Datasheet Figure 2: Typical Velocity Amplitude and Phase Response

350900 HT Velocity and Acceleration Sensor Datasheet Figure 3: Typical Acceleration Amplitude and Phase Response

350900 HT Velocity and Acceleration Sensor Datasheet Copyright 2024 Baker Hughes Company. All rights reserved. Bently Nevada and Orbit Logo are registered trademarks of Bently Nevada, a Baker Hughes business, in the United States and other countries. The Baker Hughes logo is a trademark of Baker Hughes Company. All other product and company names are trademarks of their respective holders. Use of the trademarks does not imply any affiliation with or endorsement by the respective holders. Baker Hughes provides this information on an “as is” basis for general information purposes. Baker...