TEMPERATURE SENSOR WITH 0 to 10 V OUTPUT KNS ​​720

GKNS720R
In production :  1 to 3 weeks

KNS 720 sensor type

0 to 10 V output signal

Standard measuring ranges ** -30 ° C to 60 ° C

0 ° C to 35 ° C

0 ° C to 100 ° C

0 ° C to 150 ° C

Supply voltage U 15 to 30 VDC

Nominal supply voltage Un 24 VDC

Output signal when the sensor is interrupted> 12 V

Output signal when the sensor is short-circuited ~ 0 V

Measurement error <0,6% for range with scale, min. 0,5 ° C

Ambient temperature -40 to 80 ° C

LEXAN head material (conforms to EN 45545-2)

Rod material

DIN 1.4301 stainless steel

Diameter of the stem

6 ± 0,2 mm

Standard rod lengths

70, 120, 180 mm others according to customer requirements

Degree of protection IP 65 dle EN 60529

Insulation resistance> 200 M Ω at 500 VDC, temperature 25 ° C ± 3 ° C and humidity <80%

Average life ≈ MTTF * 1,2 x 105 h - based on a theoretical calculation

*) Under environmental and operational conditions specofield in approved test methodology

**) see modofications

Tests

Shock and vibration tests

category 1, class B according to EN 61373

Electromagnetic compatibility according to EN 50121-3-2

Insulation test 1,5 kVDC for 1 minute according to EN 50155

Fire resistance

according to EN 45545 (possible according to NFPA 130)

Quantity

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The KNS 720 temperature sensor is designed to measure the temperature of liquid or gaseous substances. In the application segment of rail vehicles, it is used, for example, to measure the temperature of the outside air under the vehicle floor. For this, the sensor is equipped with a rod with high mechanical resistance.

The sensor consists of a plastic head, in which a converter from the resistance signal of the temperature sensor to the current signal of 0-10 V and a metal measuring box are placed. All metal parts are made of class 17240 stainless steel (corresponds to DIN 1.4301). The power cable is connected to the terminal block via a grommet, which is part of the plastic head. The base material of the head is LEXAN. The sensor can be used for all control systems compatible with the output signal from 0 to 10 V. Standard temperature ranges are shown in the technical parameters table, while the maximum temperature around the sensor head is 80 ° C and must not be exceeded even for a short time. The sensor complies with protection class IP 65 according to EN 60529.

The sensor is designed to operate in a chemically non-aggressive environment.

TESTS, DECLARATION, CALIBRATIONS

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

- Electromagnetic compatibility according to EN 50121-3-2, as amended

- Insulation test according to EN 50155, as amended

- Shock and vibration tests according to EN 61373, as amended

The product meets the parameters in accordance with EN 45545-2, as amended, Fire protection of railway vehicles - Part 2: Requirements for the fire behavior of materials and components. May be supplied with materials that meet NFPA 130 fire safety standard, as amended.

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