Establish the sensing field
The target-facing coil creates the eddy-current field whose impedance follows the distance to the conductive shaft surface.
Bently Nevada · long-case NSv probe executions
Bently Nevada 330901-00-36-10-11-05 / 330901-00-40-10-11-05 NSv Proximity Probes
Long-case 3300 XL NSv probes for mounting points that require 3.6 or 4.0 inches of case reach.
01
Product Introduction
Bently Nevada 330901-00-36-10-11-05 / 330901-00-40-10-11-05 are long-case 3300 XL NSv proximity probes in the 1.5 mm linear-range transducer system. They establish the non-contact field at the rotating target and pass the response through a matched cable and NSv Proximitor Sensor to the monitoring channel.
The 36 and 40 case fields give Bently Nevada 330901-00-36-10-11-05 / 330901-00-40-10-11-05 3.6 and 4.0 inch overall bodies. Their zero unthreaded section, 1/4-28 UNF thread and one-metre lead remain common, allowing the longer cases to solve reach without altering the connector or approval execution.
Because case reach is greater, Bently Nevada 330901-00-36-10-11-05 / 330901-00-40-10-11-05 need firm support that does not transmit cable force to the tip. The final probe position is set from conditioned gap voltage, and the mechanical clearance is checked across the complete shaft movement before the measurement is accepted.
02
Specification Details
| Technical item | 330901-00-36-10-11-05 | 330901-00-40-10-11-05 |
|---|---|---|
| Brand | Bently Nevada | |
| Product name | 3300 XL NSv proximity probe | |
| Country | United States | |
| Probe execution | 330901; 1/4-28 UNF; without armor | |
| Unthreaded length | 00 = 0.0 in | |
| Overall case length | 36 = 3.6 in (91 mm) | 40 = 4.0 in (102 mm) |
| Total probe length | 10 = 1.0 m (39 in) | |
| Connector and cable | 11 = ClickLoc, protector, FluidLoc | |
| Agency approval | 05 = multiple approvals | |
| Linear range | 1.5 mm (60 mil) | |
| Recommended gap | 1.0 mm (40 mil) | |
| Nominal scale factor | 7.87 V/mm (200 mV/mil) | |
| Probe case material | AISI 304 stainless steel | |
| Probe temperature | −52 to +177 °C | |
03
Product Functions
Both long-case models execute the same three functions inside an NSv measurement chain.
Carry the probe response
The one-metre coaxial lead transfers the probe response to the ClickLoc junction while keeping the sensing tip mechanically separate from the remote electronics.
Feed conditioned monitoring
The matched extension cable completes the selected system length and the Proximitor Sensor converts the response into the voltage evaluated by the monitor.
04
Performance Characteristics
Mechanical reach changes between the two probes, while the calibrated NSv response and installed field constraints remain common.
Long-case reach
The 3.6 and 4.0 inch cases move the mounting shoulder farther from the tip. The correct length is the one that leaves adjustment without unsupported overhang.
Linear measurement region
The complete chain provides a 1.5 mm linear range around the recommended gap when target material, diameter and surrounding metal satisfy the system geometry.
High-frequency path
The conditioned NSv response extends to 10 kHz in the stated system arrangement; field wiring length and target geometry are checked when the measurement uses the upper bandwidth.
05
Product Questions
What is the practical difference between Bently Nevada 330901-00-36-10-11-05 and 330901-00-40-10-11-05?
Bently Nevada 330901-00-36-10-11-05 has a 3.6 inch case; Bently Nevada 330901-00-40-10-11-05 has a 4.0 inch case. Their electrical and connection fields are otherwise the same.
How should a long Bently Nevada 330901-00-40-10-11-05 case be supported?
Support the mounting hardware and cable independently so Bently Nevada 330901-00-40-10-11-05 is not shifted by lead tension or vibration. Do not clamp the coaxial jacket as a structural member.
What target gap applies to Bently Nevada 330901-00-36-10-11-05?
The completed chain containing Bently Nevada 330901-00-36-10-11-05 uses a 1.0 mm reference gap. Establish it from conditioned voltage after the probe case is in its final position.
Could nearby probes affect Bently Nevada 330901-00-40-10-11-05?
Yes. Bently Nevada 330901-00-40-10-11-05 must retain the specified cross-talk separation and counterbore clearance because nearby probe fields and surrounding metal can alter its installed response.
Why is Bently Nevada 330901-00-36-10-11-05 described as a system component?
Bently Nevada 330901-00-36-10-11-05 does not provide the final monitor voltage by itself; it operates with the matching extension cable and NSv Proximitor Sensor.
What must be recorded before replacing Bently Nevada 330901-00-40-10-11-05?
Record the complete code, installed case reach, extension-cable length, Proximitor Sensor record and gap voltage so the replacement returns to the same measurement chain.
06
Advantageous Brands
Moore Automation
www.mvme.cnMoore Automation handles references across Bently Nevada, ABB, Siemens, Rockwell Automation, Honeywell, Schneider Electric and other industrial-control brands. The range covers controllers, I/O, drives, communication and machinery-monitoring hardware.
MonitoringBently Nevada and EPRO
ControlABB, Siemens and Rockwell
Process systemsHoneywell and Emerson
07
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