Description
Bently Nevada 3300/45-01-02-03-00 Differential Expansion Monitor Module
Configured for differential expansion measurement in the Bently Nevada 3300 monitoring architecture, the Bently Nevada 3300/45-01-02-03-00 (3300/45 Differential Expansion Monitor Module) provides direct physical/electrical execution for dual-channel rotor-to-stator displacement conversion within proximity probe based measurement loops.
Suffix Breakdown & Model Matrix
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3300/45: Dual Differential Expansion Monitor Module for 3300 rack system
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-01: Dual complementary input configuration (Channel A and B paired measurement logic)
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-02: Full scale range configuration (50-0-50 mm class scaling)
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-03: CSA/NRTL/C hazardous area approval option (Class 1 Div 2 rating)
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-00: No internal intrinsic safety barrier configuration
Hardware Specifications
| Parameter |
Specification |
| ModelBrand |
Bently Nevada 3300/45-01-02-03-00 |
| Origin |
USA |
| Weight |
1.02 kg |
| Dimensions |
Single slot 3300 rack module width |
| OperatingTemp |
-30 degC to +65 degC |
| PowerConsumption |
Powered via 3300 rack backplane (low power instrumentation load) |
| Measurement Function |
Dual differential expansion monitoring |
| Input Type |
Dual proximity transducer systems (eddy current based) |
| Outputs |
4-20 mA, 0 to -10 VDC, 1 to 5 VDC selectable |
| Frequency Response |
DC to 0.5 Hz |
| Alarm Outputs |
Alert and Danger setpoints with configurable delay |
Eddy Current Probe Scaling And Gap Voltage Validation
The module interfaces directly with eddy current proximity probe systems operating under calibrated gap voltage conversion rules within the Bently Nevada 3300 platform. Signal conditioning maintains linear scaling across full differential expansion travel, while gap voltage validation is referenced against -10 VDC span targets to ensure consistency across dual probe geometry inputs. Cross-channel interference suppression is applied at the analog conditioning stage to maintain rotor dynamics integrity under thermal transient conditions.
Frequently Asked Questions
Q: Can the module operate with mixed proximity probe sizes within Channel A and Channel B?
A: Operation requires matched transducer system scaling. Mixed probe geometries introduce non-linear conversion errors in differential expansion computation.
Q: What is the backplane dependency for signal conversion?
A: The module relies on the 3300 rack backplane for power distribution and internal signal routing. No standalone operation is supported.
Q: Does firmware modification affect calibration scaling?
A: Calibration scaling is fixed at hardware configuration level. No field firmware recalibration layer is implemented.
Field Installation Guidelines
Shielded coaxial cables from proximity probes shall be routed with continuous grounding at the rack entry point. Cable separation from high voltage conductors must be maintained to prevent induced noise coupling. Backplane slot seating must be fully engaged to ensure stable analog reference distribution. Signal output wiring for 4-20 mA loops shall maintain single-point ground reference to avoid ground loop interference across monitoring channels.
