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KTR 026D/R CONTACT TEMPERATURE SENSOR BRASS

The KTR 026D/R temperature sensor is designed to measure surface temperature of solid substances with a smooth surface. In the application segment of Railway Vehicles, it is used for example to measure temperature of water and sewage pipelines of carriage or cooling system pipelines of diesel engines or diesel-electric locomotives and units. Sensor is a part of the system ensuring the non-freezing of pipelines.

The temperature range is -40 °C to 120 °C and these limits must not be exceeded even for a brief period. The sensor consists of a brass block, whose one area has a concave recess of particular radius for surface contact with the pipeline measured. 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 67 according to EN 60 529 standard, as amended.

The sensor is attached to the pipeline using a mounting tape with a screw lock and as part of anti-freezing systems, it absolutely must not be thermal isolated, unlike in other applications.

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

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Sensor type KTR 026D/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 67 in accordance with EN 60529

Case dimensions 6 x 6 mm
-Length of case 30 to 60 mm
-The radius of curvature of the contact surfaces R = according R of pipe
-Case material brass

Lead-in cable RADOX shielded 2 x 0.25 mm2
-Wire resistance 0.142 Ω for 1 m of cable for 2-wire connection

Time response τ0.5 < 4 s (in flowing water at 0.4 ms-1)

Insulation resistance > 200 MΩ at 500 VDC, 25 °C ± 3 °C, humidity < 80%

Shock and vibration tests category 2 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 requirements of the NFPA 130 fire safety standard, as amended.

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