{"product_id":"991-01-xx-02-05-bently-nevada-thrust-transmitter-991-series","title":"991-01-XX-02-05 Bently Nevada Thrust Transmitter 991 Series","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 991-01-XX-02-05\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e991-01\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThrust Transmitter, operates as a dedicated hardware component for axial displacement signal conditioning and industrial loop communication within Turbomachinery Supervisory Instrumentation (TSI) platforms.\u003c\/p\u003e\n\u003ch3\u003eModel Configuration Logic\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eModel: 991-01\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVersion: XX-02-05 (Customized Interface)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHardware Class: Two-Wire Thrust Position Transmitter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e991-01-XX-02-05\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.44 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7.3 cm x 5.0 cm x 10.0 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIndustrial Standard Range\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLoop-Powered (Two-Wire)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutput Signal\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMODBUS RTU\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMechanical Monitoring and Signal Integrity\u003c\/h3\u003e\n\u003cp\u003eThe 991-01 transmitter requires precise eddy-current probe scaling to define the input signal threshold for axial displacement detection. Each channel mandates gap voltage validation, targeting standard -10 VDC operational points to maintain signal linearity. The internal circuitry utilizes active cross-talk suppression to isolate input signals from high-frequency noise common in turbomachinery environments. Proper configuration of rotor dynamics parameters ensures that axial position measurements remain accurate during transient thermal growth, preventing false trip logic activation while maintaining strict tolerance monitoring.\u003c\/p\u003e\n\u003ch3\u003e## Ordering info\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e991-01 Thrust Transmitter (991-01-XX-02-05)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMating connector kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCalibration data sheet\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTechnical instruction manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eMounting: Secure the transmitter enclosure using the integrated mounting points; ensure the IP67-rated housing is oriented to prevent moisture accumulation at the cable entry point.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGrounding: Terminate the signal shield to a single-point system ground to prevent ground loops that could interfere with low-level displacement signals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLoop Wiring: Connect the transmitter in a standard two-wire 4-20 mA or digital interface configuration; verify loop resistance requirements against the supply voltage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProbe Interface: Ensure the gap between the thrust collar and the transducer tip is set within the linear range of the probe prior to final loop validation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the 991-01 transmitter require an external power supply?\u003c\/p\u003e\n\u003cp\u003eThe transmitter is a loop-powered device, drawing its operational energy from the signal loop, which simplifies installation in two-wire architectures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the response time of the MODBUS RTU interface?\u003c\/p\u003e\n\u003cp\u003eThe interface updates at a rate compatible with standard TSI monitoring loops; ensure the master polling frequency is aligned with machinery protection requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan this transmitter be used in hazardous area installations?\u003c\/p\u003e\n\u003cp\u003eCompatibility with specific hazardous area classifications depends on the local installation and the use of appropriate safety barriers; consult site-specific hazardous area documentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow is the probe scaling configured?\u003c\/p\u003e\n\u003cp\u003eScaling is matched to the Bently Nevada eddy-current probe system utilized; verify the target material and probe type against the transmitter calibration data.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs the IP67 rating applicable to the connector interface?\u003c\/p\u003e\n\u003cp\u003eThe IP67 rating applies to the enclosure when properly installed with the matching connector and cable gland assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this module require periodic calibration?\u003c\/p\u003e\n\u003cp\u003eWhile solid-state in design, periodic validation of the input gap voltage and output signal linearity is recommended during scheduled maintenance shutdowns.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs the transmitter susceptible to radio frequency interference?\u003c\/p\u003e\n\u003cp\u003eThe unit includes internal RFI shielding, but cables should be routed away from high-current power cables to ensure maximum noise immunity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the MODBUS RTU communication be configured for multi-drop applications?\u003c\/p\u003e\n\u003cp\u003eYes, the MODBUS RTU protocol supports multi-drop addressing, allowing multiple transmitters to share a single communication bus.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45378089418925,"sku":"991-01-XX-02-05","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/bently-nevada-991-01-xx-02-05-custom-2-wire-thrust-transmitter-4bwc4ymvgcd.jpg?v=1764225489","url":"https:\/\/www.maxwellplc.com\/products\/991-01-xx-02-05-bently-nevada-thrust-transmitter-991-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}