TQ412 111-412-000-013 A1-B6-E050-F0-G000-H05

Product Overview

The specific configuration of this product model TQ412 111-412-000-013 A1-B6-E050-F0-G000-H05 is defined:

A1: Standard environmental version, non-explosion-proof.

B6: It adopts imperial thread 3/8"-24 UNF, which is convenient for installation into the standard probe mounting hole.

E050: The integrated cable length is 5.0 meters ± 500 millimeters.

F0/G000: No additional flexible stainless steel protective hose or FEP sheath.

H05: The total system length of the entire measurement chain (sensor + extension cable) is 5 meters. Since the integrated cable is already 5 meters long, this means that no additional EA402 extension cable is required.

This sensor must be used in conjunction with the IQS450 signal conditioner to jointly form a calibrated and interchangeable complete measurement system. Its working principle is based on the eddy current effect. A high-frequency electromagnetic field is generated through the coil at the tip of the sensor probe. When a metal target surface approaches, eddy currents will be induced on the target surface, thereby changing the impedance of the coil. The IQS450 signal conditioner detects this change and outputs a voltage or current signal proportional to the gap between the probe and the target surface.

Advantages

Outstanding measurement performance and stability

High linearity and repeatability: Within the calibrated 2mm or 4mm range, the output signal shows a highly linear relationship with the gap, and the nonlinear error is extremely small. This high linearity is crucial for precisely capturing the axis trajectory and identifying minor imbalance or misalignment faults.

The wide-frequency response not only accurately measures the low-frequency shaft displacement but also fully captures the high-frequency vibration components, meeting the comprehensive condition monitoring requirements.

The system composed of the sensor and the matching regulator has been designed with excellent temperature compensation capability. Within the working range of -40°C to +180°C, the sensitivity drift is strictly controlled within less than 5%. This means that even if there are drastic temperature changes during the start-up and shutdown of the steam turbine, the measurement data remains reliable, avoiding false alarms caused by temperature drift.

Unparalleled durability and environmental adaptability

With an IP68 protection rating, the probe head is completely sealed and can work for a long time when immersed in oil, water or other liquids. It is very suitable for installation in harsh locations such as inside bearing boxes.

High-grade material, the AISI 316L stainless steel casing has extremely strong corrosion resistance and can resist the erosion of acids, alkalis and salt spray commonly found in petrochemical plants. Torlon's cutting-edge material combines high strength, high wear resistance and excellent heat resistance, far superior to ordinary plastics or ceramics.

Passed rigorous environmental tests: Compliant with IEC 60068 standards, capable of withstanding continuous vibration of 5g and impact of 15g, ensuring stable operation even near large rotating machinery.

Disadvantage

High total cost of ownership

The initial purchase cost is high. As a product of an international first-line brand that complies with the API 670 standard, its unit price is much higher than that of non-certified or domestic similar products. The cost of a complete set of measurement points may be several times that of ordinary sensors.

It relies on dedicated accessories and must be paired with the original IQS450 signal conditioner to function, and the IQS450 itself is also quite expensive. This forms a closed ecosystem where users cannot choose cheaper third-party conditioners to cut costs.

The cost of spare parts: Once the sensor or cable is damaged, the cost of replacing the original factory spare parts is also very high.

The limitations and complexity of system integration

Analog output, with the output being the traditional -2V to -18V voltage or -15.5mA to -20.5mA current signal. Although it has strong compatibility, in the modern digital and networked Industrial 4.0 environment, it lacks native digital communication capabilities and requires additional data acquisition hardware to connect to the upper-level monitoring network, increasing the system hierarchy and complexity.