I. Model Positioning

330980: High-temperature-specific phase and speed probe, not replaceable by conventional vibration detection probes

70: Narrow side-out structure, suitable for compact installation conditions

05: Integrated 5-meter fixed-length cable, no need for additional extension cables

Usage: High-temperature chamber areas of steam turbines and gas turbines, specifically for phase measurement and speed protection, not for shaft vibration or axial displacement measurement

II. Core Parameters

1. Mechanical Structure

Probe Type: Electric Eddy Current High-Temperature Phase-specific Probe

Installation Thread: 3/8-24 UNF standard specification

Output Form: Side-out narrow-shaped structure

Cable Configuration: Built-in 5-meter integrated cable, cannot be cut or modified

Shell Material: High-temperature-resistant stainless steel, resistant to deformation and oxidation

Protection Grade: IP67, dustproof, waterproof, resistant to oil and corrosion

2. Electrical Characteristics

Measurement Principle: Non-contact Eddy Current Induction Detection

Adapter Compatibility: 330180 Standard Type, 330181 High-Temperature Type

Sensitivity: 7.87V/mm

Frequency Response: 0~10kHz, covering the entire unit's speed range

Pulse Quality: Clear signal edges, no lost pulses, no interference noise

Power Supply: -24VDC ±10%

3. Environmental Tolerance

Probe Working Temperature: -40℃~+175℃

Cable Working Temperature: -40℃~+125℃

Anti-Vibration Grade: 10g (10~1000Hz)

Small temperature drift, stable signal without offset distortion in high-temperature conditions

4. System Adaptation

Adaptable Rack: 3300 TSI, 3500 TSI Monitoring System

Adaptable Module: 3500/50E, 3500/50M Speed Phase Module

Connection Adaptation: Direct connection to the same specification preamplifier interface

III. Installation Tips

1. Installation Gap

Standard installation gap control: 1.0~1.5mm

Preferred tested workpiece: 4140 steel, detection surface size larger than probe's three times diameter

Proximity of the probe to 5mm or more clearance to avoid interference from surrounding metals during detection

2. Wiring Standards

Use three-wire connection, core wire as signal end, inner shield as common end, outer shield as grounding end

Shielded cable is only grounded at the preamplifier end to prevent circulating current interference with the signal

3. Installation Steps

Clean the installation hole and surface burrs, oil stains, impurities of the measured object

Rotate the probe to the fitting end face and retreat 1.25mm for standard gap

Tighten the anti-loosening nut, maintain a tightening torque of 8~10N・m

Arrange the wiring neatly, the minimum bending radius of the cable should not be less than 25mm

IV. Common Faults

No Pulse Output: Check the installation gap, power supply voltage, wiring terminals and cable integrity

Signal Jumping Disorder: Verify the grounding method, keep the cable away from strong electrical equipment such as frequency converters

High-Temperature Data Abnormality: Confirm the working temperature range of the probe, installation tightness and detection spacing