Description
Bently Nevada 145004-47 3300 XL Proximitor Sensor
The Bently Nevada 145004-47, also cataloged as the 330180-X1-05 MOD 145004-47 Proximitor Sensor, serves as the primary signal conditioning interface utilized to execute eddy-current proximity measurement conversion across the Bently Nevada 3300 XL Transducer System platforms. The unit conditions probe gap voltage into calibrated electrical outputs for vibration and position monitoring.
Hardware Specifications
| Parameter |
Specification |
| Model |
145004-47 |
| Brand |
Bently Nevada |
| Origin |
USA |
| Weight |
0.25 kg |
| Dimensions |
102.2 cm x 12.4 cm x 12.6 cm |
| Operating Temp |
-40 deg C to +125 deg C |
| Power Consumption |
12–30 VDC supply |
| Series |
3300 XL Transducer System |
| Calibration Target |
AISI 1040 steel |
| Operating Range |
10–90 mils |
| Sensitivity |
200 mV/mil (ASF), 18 mV/mil (ISF) |
| Output Type |
PWM, NPN open collector |
| Connection Type |
M12 connector |
Eddy-Current Probe Scaling and Gap Voltage Conversion Logic
The sensor operates as a signal conditioning stage for eddy-current transducer chains, performing linearization of probe gap response across calibrated AISI 1040 steel targets. The internal conversion network maintains proportional scaling between displacement input and output PWM duty representation, preserving stability across full operating range (10–90 mils).
Gap voltage interpretation is stabilized through impedance matching between probe head and extension cable assembly, reducing drift under high EMI/RFI exposure. The system maintains consistent excitation behavior across 5 mm and 8 mm probe geometries, ensuring uniform transfer characteristics in mixed probe installations.
Cross-system compatibility is maintained with legacy 3300 XL probe families, where sensitivity coefficients (ASF and ISF) are mapped to standardized displacement-to-voltage curves for downstream monitoring modules.
Frequently Asked Questions (FAQ)
Q: Does the module support both 5 mm and 8 mm probe systems simultaneously?
A: Yes. The signal conditioning architecture supports both probe types through calibrated sensitivity mapping within the 3300 XL system.
Q: Is the output analog or digital?
A: The output stage uses PWM signaling with NPN open collector configuration for downstream interpretation.
Q: Can the sensor operate under high EMI environments without external shielding modification?
A: Yes. The design includes inherent EMI/RFI immunity, but correct grounding of the cable shield remains required.
Field Installation Guidelines
-
Install sensor with correct M12 connector torque specification to avoid signal intermittency
-
Maintain continuous shield grounding along probe-to-sensor signal chain
-
Route signal cables away from high-voltage switching conductors
-
Ensure probe tip alignment perpendicular to target steel surface (AISI 1040 reference)
-
Avoid mechanical stress on extension cable during installation and operation
-
Verify calibration target alignment prior to commissioning
-
Do not mix probe cable types without verifying sensitivity mapping compatibility
