Product Overview
In industrial vibration monitoring, the Bently Nevada 330173-00-02-20-02-05 delivers precise shaft vibration and position data. This 5 mm proximity probe uses eddy current sensing to convert mechanical motion into a linear electrical signal. The 330173-00-02-20-02-05 is part of the 3300 series and features an M8 x 1 thread without armor. Its unthreaded length is 0 mm, overall case length is 20 mm, and total length is 2.0 meters (6.6 feet). A miniature coaxial ClickLoc connector and standard cable simplify installation. Weighing only 0.323 kg, the probe is manufactured in the U.S.A.
Technical Specifications
Key specifications for the Bently Nevada 330173-00-02-20-02-05 include a power requirement of -17.5 Vdc to -26 Vdc at 12 mA maximum consumption. Supply sensitivity is less than 2 mV change per volt change, and output resistance is 50 W. The probe DC resistance from center conductor to outer conductor is 7.88 ± 0.50 Ω for a 2.0-meter length. The probe tip uses polyphenylene sulfide (PPS), while the case is AISI 303 or 304 stainless steel. The cable is 75 Ω triaxial, FEP insulated, and available in 0.5, 1, 2, 5, or 9 meter lengths.
| Parameter |
Value |
| Probe Type |
3300 5mm Probe, M8 x 1 thread |
| Unthreaded Length |
0 mm |
| Overall Case Length |
20 mm |
| Total Length |
2.0 m (6.6 ft) |
| Connector |
Miniature coaxial ClickLoc |
| Agency Approvals |
Multiple |
| Weight |
0.323 kg |
| Power Supply |
-17.5 to -26 Vdc, 12 mA |
| Output Resistance |
50 W |
| Probe DC Resistance |
7.88 ± 0.50 Ω |
| Probe Tip Material |
PPS |
| Probe Case Material |
AISI 303/304 SST |
| Probe Cable |
75 Ω triaxial, FEP |
| Temperature Range |
-35°C to +177°C |
| Thread Engagement Max |
12 mm |
Installation and Setup
Proper mounting of the 330173-00-02-20-02-05 ensures accurate readings. The M8x1 thread requires a maximum thread engagement of 12 mm. Recommended probe case torque is 5.1 N·m (45 in·lb) and the maximum is 7.3 N·m (65 in·lb). Connector-to-connector torque must not exceed 0.565 N·m. Keep the cable bend radius at least 25.4 mm. For consistent performance, install the probe at a gap of 1.27 mm (50 mils) from an AISI 4140 steel target.
Application Scenarios
In rotating equipment such as turbines, compressors, and pumps, the Bently Nevada 330173-00-02-20-02-05 provides reliable shaft vibration data. Its operating range of -35°C to +177°C suits demanding industrial environments. The probe’s low sensitivity to 60 Hz magnetic fields—less than 0.0133 mil pp/gauss at a 90 mil gap—reduces interference in electrically noisy plants. With multiple agency approvals, this 330173-00-02-20-02-05 fits into predictive maintenance systems for better asset uptime.
Reliability and Failure Avoidance
Extending probe service life requires attention to thermal stress. Exposing the 330173-00-02-20-02-05 to temperatures below -34°C may cause premature failure of the pressure seal. Always respect the probe case torque limits; over-tightening can crack the case and break the seal. The tensile strength of 222 N from probe case to lead prevents separation under moderate strain. Using correct connector torque protects the ClickLoc connector. Following the temperature schedule for EPL Ga, Gc, and Dc classifications helps you choose the right operating envelope and prevent early probe failure.
Selection Guide and Purchasing Advice
Before ordering, confirm the cable length, connector type, and agency approvals required for your system. The 330173-00-02-20-02-05 configuration includes a 2.0-meter cable and Miniature coaxial ClickLoc connector. Verify that your monitoring system is compatible with 5 mm proximity probes and that your target material matches AISI 4140 steel. PLC Source PRO carries this Bently Nevada 330173-00-02-20-02-05 in stock, offering fast shipping for planned maintenance or emergency repairs.