EA402 912-402-000-013 A1-E045-F1-G038 extension cable

Description:

The TQ402/TQ412, EA402 and IQS900 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.
The system is based around a TQ402 or TQ412 non-contact sensor and an IQS900 signal conditioner. Together, these form a calibrated proximity measurement system in which each component is interchangeable. The system outputs a voltage or a current proportional to the distance between the transducer tip and the target, such as a machine shaft.
The active part of the transducer is a coil of wire that is moulded inside the tip of the device, made of Torlon® (polyamide-imide). The transducer body is made of stainless steel. The target material must, in all cases, be metallic.
The transducer body is available with metric or imperial thread. The TQ412 version is intended for reverse-mount applications. Both the TQ402 and TQ412 have an integral coaxial cable, terminated with a self-locking miniature coaxial connector. Various cable lengths (integral and extension) can be ordered.
The IQS900 signal conditioner contains a high-frequency modulator/demodulator that supplies a driving signal to the transducer. This generates the necessary electromagnetic field used to measure the gap. The conditioner circuitry is made of high-quality components and is mounted in a painted aluminium housing.
Note: The IQS900 signal conditioner matches or betters the outstanding measurement performance and specifications of the IQS450 signal conditioner, which it replaces. Accordingly, the IQS900 is compatible with all TQ9xx and TQ4xx proximity sensors / measurement chains.
In addition, the IQS900 signal conditioner includes improvements such as: SIL 2 “by design”, improved frame-voltage immunity, improved electromagnetic immunity and emissions, smaller output impedance (voltage output), optional diagnostic circuitry (that is, built-in self-test (BIST)), raw output pin, test input pin, new DIN-rail mounting adaptor and removable screw-terminal connectors for easier installation.
The TQ402 and TQ412 transducers can be matched with a single EA402 extension cable to effectively lengthen the front-end. Optional housings, junction boxes and interconnection protectors are available for the mechanical and environmental protection of the connection between the integral and extension cables.
TQ4xx-based proximity measurement systems can be powered by associated machinery monitoring systems such as VM600 cards or VibroSmart® modules, or by another power supply.
For specific applications, contact your local Meggitt representative.

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Technical specification, manuals and data sheets

SPECIFICATIONS:

Environmental
Temperature range
• Sensor : −40 to 180°C (−40 to 356°F) operating.
180 to 220°C (356 to 428°F) short-term survival for 2 hours max.
• Sensor and cabling : Temperature for use in an Ex Zone: see Potentially explosive
atmospheres on page 4
• Cabling, connector and optional
protection
: −40 to 200°C (−40 to 392°F)
Measurement drift
• Sensor and cabling with a total
system (chain) length of 1, 5 or 10 m
: <5% for −30 to 150°C (−22 to 302°F)
Pressure between sensor tip and body : 6 bar (100 psid) max.
Protection rating
(according to IEC 60529)
: The head of the sensor (sensor tip and integral cable) is rated IP68
Vibration
(according to IEC 60068-2-26)
: 5 g peak between 10 and 500 Hz
Shock acceleration
(according to IEC 60068-2-27)
: 15 g peak (half sine-wave, 11 ms duration)

Sensor construction : Wire coil Ø8 mm, PPS (polyphenylene sulfide) high-performance
thermoplastic tip, crimped to a stainless-steel body (AISI 316L)
Integral and extension cables : FEP covered 70 Ω coaxial cable, Ø3.6 mm
Connectors : Self-locking miniature coaxial connectors.
Note: When connecting, these should be hand-tightened until
locked.
Optional protection
• Flexible stainless-steel hose
(protection tube) with
FEP sheath (extruded fluorinated
ethylene propylene)
: The combination of stainless-steel hose with FEP sheath provides
sealed (leak-tight) mechanical and electrically insulated
protection.
Note: The FEP sheath also provides resistance to almost all
chemicals and low permeability to liquids, gases and moisture,
while being flexible, low friction and mechanically tough.