{"product_id":"177230-01-02-cn-bently-nevada-seismic-transmitter","title":"177230-01-02-CN Bently Nevada Seismic Transmitter","description":"\u003cp\u003eConfigured for seismic vibration monitoring in industrial control platforms, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 177230-01-02-CN\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e177230\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSeismic Transmitter) provides direct physical signal transduction of casing vibration through an industry-standard 4-20 mA loop-powered interface.\u003c\/p\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\u003e177230-01-02-CN\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\u003e0.48 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\u003e5.4 x 4 x 9.5 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\u003eConsult 177230 system manual\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 (4-20 mA)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSettling Time\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt; 15 seconds (to 2% of final value)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eResonant Frequency\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026gt; 12 kHz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTransverse Sensitivity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt; 5%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eRotor Dynamics and Signal Conditioning\u003c\/h3\u003e\n\u003cp\u003eThe 177230 Seismic Transmitter utilizes a ceramic\/shear sensing element to convert mechanical acceleration into a calibrated 4-20 mA signal proportional to velocity. Successful deployment requires rigid mounting to the machine casing to ensure the transducer resonant frequency remains significantly higher than the frequency range of interest. By providing a raw vibration signal output, the transmitter allows for on-site verification and external diagnostics. Proper grounding and cable shielding are required to maintain signal-to-noise ratios, particularly in environments with high electromagnetic interference.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e1 x 177230-01-02-CN Seismic Transmitter unit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Regulatory compliance documentation.\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\u003eMechanical Mounting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSecure the transmitter to a flat, rigid surface on the machine casing using the provided mounting stud.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnsure the mounting interface is free of paint or oxidation to maintain high-frequency coupling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical Loop\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eConnect the transmitter to a 4-20 mA current loop. Ensure the supply voltage is adequate to overcome the loop impedance of the receiving PLC or DCS analog input card.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eShield the interconnecting cabling to prevent noise coupling; ground the shield only at the control system end.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\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\u003eWhat is the output signal format?\u003c\/p\u003e\n\u003cp\u003eThe transmitter provides a 4-20 mA loop-powered output proportional to the measured velocity, as well as a raw vibration signal for external analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the device be used for displacement measurement?\u003c\/p\u003e\n\u003cp\u003eNo, the 177230 is a seismic velocity transmitter; it measures casing-to-ground motion, not shaft-to-casing relative displacement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the impact of transverse sensitivity?\u003c\/p\u003e\n\u003cp\u003eTransverse sensitivity is limited to less than 5%, ensuring that vibration along axes perpendicular to the primary sensing axis does not cause significant measurement error.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this device require an external power supply?\u003c\/p\u003e\n\u003cp\u003eThe device is loop-powered via the 4-20 mA signal path; no additional DC power supply is required at the transmitter location.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhy is the settling time specified?\u003c\/p\u003e\n\u003cp\u003eSettling time defines the period required for the output signal to stabilize within 2% of its final value following a step change in measured vibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs the transmitter field-calibrated?\u003c\/p\u003e\n\u003cp\u003eThe transmitter is factory-calibrated. Field verification is limited to checking the loop current against expected vibration levels using the raw output signal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the purpose of the mounted resonant frequency?\u003c\/p\u003e\n\u003cp\u003eThe \u0026gt; 12 kHz mounted resonant frequency ensures the sensor does not introduce its own mechanical resonance into the 3 Hz to 1 kHz measurement range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the transmitter be hot-swapped?\u003c\/p\u003e\n\u003cp\u003eYes, as a loop-powered device, it can be disconnected from the loop, provided the monitoring system is placed in a bypass or maintenance mode.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":46026794991789,"sku":"177230-02-01-CN","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/177230-01-02-CN3.jpg?v=1782898910","url":"https:\/\/www.maxwellplc.com\/ga\/products\/177230-01-02-cn-bently-nevada-seismic-transmitter","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}