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ktr 167/r temperature measurement of axle bearings

The KTR 167/R resistance temperature sensor is designed to measure temperature of solid substances. In the application segment of Railway Vehicles, it is intended to measure temperature of carriage axle bearings. The sensor configuration is depended on achieving the required resistance of the entire structure, in particular against vibrations and shocks.

The temperature range is -40 °C to 120 °C and these limits must not be exceeded even for a brief period. The sensor can be used for any control systems compatible with types of sensing elements listed in the table of technical parameters. The sensor meets ingress protection IP 68 (1 bar) according to EN 60529, as amended.

The sensor is intended for operation in chemically non-aggressive environment.

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Sensor type KTR 167/R
-Type of sensing element all types
-Temperature range -40 °C to 120 °C (the measuring range can be
extended – see the modifications)
-Ingress protection IP 68 (1 bar) in accordance with EN 60529

Case dimension 45 x 50 x 30 mm / R162 + 4
-Case material stainless steel DIN 1.4301

Lead-in cable RADOX shielded 2 x 0.5 mm2
-RADOX shielded 4 x 0.5 mm2

Wire resistance 0.07 Ω for 1 m of cable for 2-wire connection
Connector HARTING Han 3A-F
Protection tube PMAFLEX PCST-12B.50, could be different
Insulation resistance > 200 MΩ at 500 VDC, 25 °C ± 3 °C,
humidity < 80%
Shock and vibration tests category 3 in accordance with EN 61373
Insulation test 4 kVDC for time 1 minute
in accordance with EN 50155
Mean working life ≈ MTTF * 1.95 x 106
hrs

The type tests are carried out by a notified body according to EN 50155
standard, as amended Railway applications – Electronic equipment used
on rolling stock, Art. 12.2.9, 12.2.11

* Insulation test in accordance with EN 50155, as amended
* Shock and Vibration tests in accordance with EN 61373, as amended

The product meets parameters in accordance with EN 45545-2, as amended,
Fire protection on railway vehicles – Part 2: Requirements for fire behaviour
of materials and components. The materials also meet the requirements
of the NFPA 130 fire safety standard, as amended.

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