Product Short Description
Product Name: 3300 XL 25 mm Proximitor® Sensor (9.0 m system length, panel mount, multi-agency approved)
Product Introduction: The 330850-90-05 is a Proximitor (proximity probe driver) that forms the electronic front-end of the 3300 XL 25 mm Proximity Transducer System. Together with a 3300 XL 25 mm probe and extension cable, it provides precise non-contact measurement of shaft position, differential expansion and rotor/stator thermal growth on large rotating machinery.
Description
Technical Specifications:
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Linear Range: 12.7 mm (500 mil)
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Scale Factor: 0.787 V/mm (20 mV/mil)
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Supply Voltage: -17.5 VDC to -26 VDC (12 mA max. consumption without barriers; -23 VDC to -26 VDC with barriers)
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Supply Sensitivity: < 2 mV output change per volt input change
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Output Resistance: 50 Ω
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Frequency Response: 0 to 2.7 kHz, +0/-3 dB
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System Length: 9.0 m (29.5 ft)
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Weight: 255 g (9 oz)
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Recommended Target Diameter: ≥ 61 mm
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Probe Tip Material: PEEK
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Probe Case Material: AISI 304 stainless steel
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Proximitor Housing Material: A380 aluminium
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Cable: 75 Ω PFA-insulated FluidLoc™ cable
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Connector: ClickLoc™ tool-free
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Probe Temperature Range: -35°C to +200°C (short-term +250°C)
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Proximitor Operating Temperature: -51°C to +100°C
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Agency Approvals: CSA, ATEX, IECEx, CE, RoHS
Functional Features:
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Wide linear range for accurate Differential Expansion (DE) measurement
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Improved RFI/EMI immunity; meets CE requirements
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Thin form factor for high-density DIN-rail or panel mount
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SpringLoc™ terminal strips for tool-free wiring
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Factory calibrated to AISI 4140 steel (optional calibration to other targets)
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Direct replacement for legacy 7200 series with matching output
Application Scenarios: Steam turbine differential expansion monitoring, axial shaft position, rotor/stator thermal growth, condition monitoring of large rotating equipment in power generation, oil & gas, petrochemical plants.
Installation & Notes: Mount the Proximitor in a panel or DIN-rail location away from excessive heat. Ensure the negative supply stays ≤ -23.5 VDC to preserve full linear range. Use the ClickLoc connector for secure probe attachment. Calibrate to the actual target material if different from AISI 4140. Follow the Bently Nevada 3300 XL 25 mm datasheet precisely for gap and bracket considerations.
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