TQ403 111-403-000-013 Vibration proximity transducer

Description:

The TQ403, EA403 and IQS450 form a proximity
measurement system from Meggitt’s vibro-meter®
product line. This proximity measurement system
allows contactless measurement of the relative
displacement of moving machine elements.
TQ4xx-based proximity measurement systems are
particularly suitable for measuring the relative
vibration and axial position of rotating machine
shafts, such as those found in steam, gas and
hydraulic turbines, as well as in alternators, turbocompressors and pumps

System calibration
Calibration temperature : +23°C ±5°C
Target material : VCL 140 steel (1.7225)
Note: If special calibration is required, please define the alloy precisely or supply a sample of alloy
(minimum: Ø60 mm / 1 cm thick) according to Meggitt SA drawing number PZ 7009/1.
Total system length
The total system length (TSL) is the sum of the length of the TQ4xx transducer’s integral cable and the length of
the EA40x extension cable. The supported TSLs can be obtained from different combinations of cables.
Total system lengths
• 5 m : 1.0 m integral cable + 4.0 m extension cable.
5.0 m integral cable with no extension cable.
• 10 m : 1.0 m integral cable + 9.0 m extension cable.
5.0 m integral cable + 5.0 m extension cable.
10.0 m integral cable with no extension cable.
Note: The combination of cables selected for a particular total system length depends on the application. For
example, to obtain the optimum location for the separation between the integral and extension cables or to
eliminate the requirement for an extension cable.
Total system length trimming
Due to the characteristics of the coaxial cable, an "electrical trimming" of the nominal length of extension
cables is necessary to optimize the system performance and the transducer interchangeability.
TSL for a 5 m measurement chain : 4.4 m minimum
TSL for a 10 m measurement chain : 8.8 m minimum