{"product_id":"79492-01-bently-nevada-temperature-monitor","title":"79492-01 | Bently Nevada Temperature Monitor","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 79492-01\u003c\/strong\u003e is a \u003cstrong\u003eSix-Channel Temperature Monitor\u003c\/strong\u003e module for the \u003cstrong\u003e3500\/35\u003c\/strong\u003e machinery protection system. This module provides real-time temperature monitoring using \u003cstrong\u003eRTD (Resistance Temperature Detector)\u003c\/strong\u003e inputs, supporting \u003cstrong\u003ePT100, PT500, and Ni120\u003c\/strong\u003e sensor types. With six independent channels, high-precision measurement, and seamless integration with the 3500 system, the 79492-01 is the premier choice for critical rotating machinery temperature protection in power generation, oil \u0026amp; gas, and petrochemical industries.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Bently Nevada (Baker Hughes)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Family:\u003c\/strong\u003e 3500 Series Machinery Protection System\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Six-Channel Temperature Monitor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModule Designation:\u003c\/strong\u003e 3500\/35\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 79492-01\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Type:\u003c\/strong\u003e RTD (3-wire \/ 4-wire)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupported RTD Types:\u003c\/strong\u003e PT100, PT500, Ni120\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 6 independent channels\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -200°C to +400°C (-328°F to +752°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e ±0.1°C (±0.2°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 0.1°C (0.2°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Signal:\u003c\/strong\u003e 0–10 VDC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e 24 VDC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 130 × 97 × 41 mm (5.1 × 3.8 × 1.6 in)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.77 kg (1.7 lb)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e BENTLY 3500 System\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety Compliance:\u003c\/strong\u003e CE, RoHS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSix-Channel Density:\u003c\/strong\u003e Six independent temperature channels in a single compact module reduce rack space and installation complexity compared to single-channel alternatives.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Precision:\u003c\/strong\u003e ±0.1°C accuracy minimizes false alarms and ensures reliable protection against thermal damage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Sensor Support:\u003c\/strong\u003e Compatible with PT100, PT500, and Ni120 RTDs, providing flexibility for different temperature measurement requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Temperature Range:\u003c\/strong\u003e -200°C to +400°C covers cryogenic applications through high-temperature industrial processes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3500 System Integration:\u003c\/strong\u003e Direct integration with the 3500 Machinery Protection System enables centralized alarm management, trending, and System 1 software connectivity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModular Design:\u003c\/strong\u003e Hot-swappable module design allows replacement without system shutdown (when configured for redundancy).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBearing temperature monitoring on steam turbines and gas turbines\u003c\/li\u003e\n  \u003cli\u003eGenerator stator and rotor temperature surveillance\u003c\/li\u003e\n  \u003cli\u003eCompressor bearing and process temperature measurement\u003c\/li\u003e\n  \u003cli\u003eMotor winding and bearing temperature protection\u003c\/li\u003e\n  \u003cli\u003ePump seal and bearing temperature monitoring\u003c\/li\u003e\n  \u003cli\u003eProcess fluid and exhaust gas temperature tracking\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRack Installation:\u003c\/strong\u003e Install the 79492-01 module into an available slot in the Bently Nevada 3500 monitoring system rack. The module occupies one full-height slot. Ensure the module is fully seated and the retaining screws are tightened.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRTD Wiring:\u003c\/strong\u003e Connect RTD sensors to the module's input terminals using 3-wire or 4-wire configuration. Follow the wiring diagram in the official Bently Nevada 3500\/35 installation manual. For 3-wire RTDs, ensure all three leads are properly connected for lead resistance compensation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShield Grounding:\u003c\/strong\u003e Ground RTD cable shields at the monitoring system end only. Do not ground at both ends to prevent ground loop errors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Use the 3500 Rack Configuration Software to set:\n    \u003cul\u003e\n      \u003cli\u003eRTD type per channel (PT100, PT500, Ni120)\u003c\/li\u003e\n      \u003cli\u003eTemperature range and engineering units (°C or °F)\u003c\/li\u003e\n      \u003cli\u003eAlarm setpoints (Alert and Danger)\u003c\/li\u003e\n      \u003cli\u003eRelay logic and voting configuration\u003c\/li\u003e\n      \u003cli\u003eChannel bypass and OK checking parameters\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCalibration Verification:\u003c\/strong\u003e Apply known temperature references (e.g., ice bath at 0°C, boiling water at 100°C) to verify channel accuracy. Adjust calibration offsets if readings deviate from reference values.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlarm Testing:\u003c\/strong\u003e Test alarm and relay outputs by simulating over-temperature conditions. Verify proper alarm annunciation, relay actuation, and System 1 software notification.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecord Keeping:\u003c\/strong\u003e Document all configuration settings, calibration data, and test results for regulatory compliance and maintenance records.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 79492-01 and 81228-01?\u003c\/strong\u003e\u003cbr\u003e\nA: The 79492-01 and 81228-01 are often referenced together as they are components of the same 3500\/35 temperature monitor system. The 79492-01 is the primary module part number. The 81228-01 may be an associated I\/O module, terminal block, or revision variant.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use thermocouples with the 79492-01?\u003c\/strong\u003e\u003cbr\u003e\nA: The 79492-01 is designed for RTD inputs (PT100, PT500, Ni120). For thermocouple inputs, use the 3500\/61 temperature monitor module which supports both RTD and thermocouple sensors.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum cable length for RTD sensors?\u003c\/strong\u003e\u003cbr\u003e\nA: RTD cable length depends on wire gauge and acceptable measurement error. As a general guideline, keep 3-wire RTD cable runs under 100 meters for best accuracy. For longer runs, use 4-wire configuration or signal conditioners.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is the 79492-01 hot-swappable?\u003c\/strong\u003e\u003cbr\u003e\nA: The 3500 system supports hot-swappable module replacement when the rack is configured with redundant power supplies and the module is not part of a critical protection loop. Always follow Bently Nevada's hot-swap procedures to avoid system disruption.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What monitoring software is compatible?\u003c\/strong\u003e\u003cbr\u003e\nA: The 79492-01 integrates with Bently Nevada System 1 software for trending, diagnostics, and asset management. It also works with the 3500 Rack Configuration Software for module setup and the 3500 Operator Display Software for local monitoring.\u003c\/p\u003e\n\n\u003ch3\u003eSelection Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify your monitoring system is a Bently Nevada 3500 Series rack before ordering. The 79492-01 is not compatible with 3300 series racks.\u003c\/li\u003e\n  \u003cli\u003eConfirm your temperature sensors are RTD type (PT100, PT500, or Ni120). If using thermocouples, order the 3500\/61 module instead.\u003c\/li\u003e\n  \u003cli\u003eDetermine the number of temperature points to monitor. Each 79492-01 provides 6 channels. For more than 6 points, order multiple modules.\u003c\/li\u003e\n  \u003cli\u003eVerify rack space availability in your 3500 chassis. Each module occupies one full-height slot.\u003c\/li\u003e\n  \u003cli\u003eWhen replacing a failed module, always match the exact part number (79492-01) to ensure identical functionality and connector compatibility.\u003c\/li\u003e\n  \u003cli\u003eFor SIL-rated safety applications, verify the module meets your required Safety Integrity Level (SIL) and consult Bently Nevada for proper system configuration.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":53797704597688,"sku":"79492-01","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/79492-01_5.png?v=1784712642","url":"https:\/\/www.globalpetroparts.com\/products\/79492-01-bently-nevada-temperature-monitor","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}