Description
Operating on the eddy-current principle, this non-contacting sensor measures static and dynamic distances between the probe tip and a target shaft.
Commercial and Supply Chain Status
- Condition: New Original (Factory Sealed)
- Warranty: 12-Month Comprehensive Industrial Warranty
- Availability: Active stock across core industrial distribution lanes
- Lead Time: Ships within 1 to 2 business days from order confirmation
- Pricing: Base online pricing is indicative; final price depends on factory manufacturing cycles and raw material surcharges. Contact us for a firm quote.
Part Number Breakdown
The specific nomenclature string 330101-00-12-10-00-05 defines the physical profile, thread configuration, and electrical options of the probe:
- 330101: Base model code for a 3300 XL 8mm Proximity Probe with standard 3/8-24 UNF English threads and a smooth unthreaded section.
- 00: Unthreaded Length: 0.0 inches. The outer body housing is fully threaded along its active casing length.
- 12: Overall Case Length: 1.2 inches.
- 10: Total Length: 1.0 meter (3.3 feet) integrated cable lead.
- 00: Connector Type: Miniature coaxial ClickLoc connector with a standard gold-plated pin layout (no miniature connector protector included).
- 05: Agency Approvals: Multiple approvals configuration, including ATEX, IECEx, and North American CSA certifications for hazardous, zone-classified spaces.
Technical Specifications
| Parameter | Value |
| Probe Tip Diameter | 8.0 mm (0.31 in) |
| Case Thread Pitch | 3/8-24 UNF-2A thread configuration |
| System Compatibility | Calibrated exclusively for the 3300 XL Proximitor Sensor loop |
| Target Material | AISI 4140 steel (Standard factory calibration target) |
| Linear Range | 2.0 mm (80 mils), typically from 0.25 to 2.25 mm (10 to 90 mils) clearance |
| Incremental Scale Factor (ISF) | 7.87 V/mm (200 mV/mil) \pm6.5\% under standard conditions |
| Cabling Configuration | Coaxial, 75 \Omega characteristic impedance, FEP jacket |
| Connector Pull Strength | 220 N (50 lbf) maximum continuous tension |
| Operating Temperature | −51 to +177 °C (−60 to +351 °F) for probe head and cable |
| Pressure Sealing | Sealed against leak-through up to 7.0 bar (100 psi) across the tip |
Architecture and Total System Matching Constraints
The 330101-00-12-10-00-05 sensor acts as the inductive leg of an RF tank circuit driven by an external 3300 XL Proximitor module.
Total Electrical System Length Calibration
Proximity probes must be matched with an extension cable to satisfy a precise fixed total electrical length before connecting to the Proximitor sensor:
- Required System Match: Because this probe possesses a 1.0-meter integrated cable configuration (
-10), it must be paired with a 4.0-meter or 8.0-meter extension cable. - This combination creates a complete 5.0-meter or 9.0-meter system array, matching the exact processing model of the corresponding Proximitor sensor.
- Truncating the cable path or inserting uncalibrated lengths shifts the system’s baseline resonant frequency, introducing signal non-linearity and rendering vibration calculations inaccurate.
Engineering Insights: Installation and Mechanical Calibration
Physical Clearance and Side-Gap Mitigation
When threading the probe body into machine housings or bearing caps, maintain a clear cylindrical radius around the tip:
- Ensure there is at least 15.2 mm (0.60 in) of clearance from surrounding structural metals to prevent side-loading interference.
- If the probe tip is recessed into a narrow counterbore cavity, the surrounding metal will attract secondary eddy-current fields, creating false offsets and flattening the output voltage curve.
Electrical Gap Volts Calibration
Before locking down the outer jam nuts during installation, mechanical calibration must be executed using an external digital multimeter to monitor output voltage:
- Procedure: Thread the probe slowly toward the target shaft surface while tracking the raw DC voltage output at the Proximitor terminal block.
- Adjust the gap distance until the meter displays a target reading of −10.0 V DC, which corresponds directly to the midpoint of the sensor’s linear calibration range.
- Once positioned, torque the mounting jam nuts to the maximum limit specified for 3/8-24 cases—typically 12 N·m (106 in·lbf)—to prevent the sensor from backing out under operational machine vibration.
Frequently Asked Questions
Q: Can this probe measure alternative metals like aluminum, stainless steel, or bronze? A: The 3300 XL 8mm probe is standard-calibrated for AISI 4140 carbon steel. While it will physically detect other metals, their varying electrical conductivity and magnetic permeability parameters will significantly distort the Incremental Scale Factor (ISF). For non-4140 targets, you must utilize a specialized Proximitor module calibrated for that specific target material alloy.
Q: What is the purpose of the gold plating on the ClickLoc connector terminal? A: The gold plating minimizes contact resistance and prevents localized oxidation in high-humidity or corrosive industrial atmospheres. This preserves low-voltage, high-frequency signal transmission across the connector junction point without introducing signal noise.
Q: How do I identify an installation error caused by shaft runout? A: If the sensor outputs a high dynamic AC vibration signal on a rotor turning at very low speed (e.g., barring or turning gear speed), the probe is detecting mechanical or electrical runout. This is caused by physical surface scratches, dynamic magnetic variations, or residual magnetism in the shaft material, rather than actual centerline shaft movement.
