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Reference GKSD112R

Delivery in 3 to 5 weeks

Sensor type

(K - with connector) KSD 112A


RS 485 / MODBUS RTU output signal

Measuring range -30 to 70 ° C

Electronics accuracy *) ± 0,2 ° C

Type / Accuracy of the sensitive element Pt 1000 / ± (0,3 ° C + 0,0005 | t |)

Supply voltage (U) 15 to 30 V DC

Nominal supply voltage (Un) 24 V DC

Maximum power consumption / current: 500 mW

typical: 300 mW

Protection index IP 65 according to EN 60529, as amended

Rod length 50 mm

Standard shank diameter 6 ± 0,2 mm

Rod material stainless steel DIN 1.4301

Insulation resistance> 200 MOhm at 500 V / DC, 25 ° C ± 3 ° C; humidity <85%

Head dimensions 70 × 63 × 34 mm

LEXAN head material (conforms to EN 45545-2)

Connector type in the head

(for sensors with connector) RSFM4 - M12- Lumberg

Recommended wire section

(for sensors with cable gland) 0,14 to 1 mm2

Working conditions ambient temperature: -40 to 80 ° C

relative air humidity: max. 100%

atmospheric pressure: 70 to 107 kPa

Min weight 150 grams

*) The measurement error of the KSD 112A temperature sensor depends on the flow rate and the supply voltage (method error) and can be between -1,0 and 1,5 ° C.


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)


This temperature sensor with a digital RS 485 (MODBUS) - KSD 112 output is designed for an outdoor environment. In the application segment of railway vehicles, it is used for example to measure the air temperature in locomotive engine rooms, it can be part of the temperature control system in passenger compartments or is used for indicate the temperature in the engine room as part of the fire protection system.

The temperature sensor with digital output RS 485 (MODBUS) - KSD 112 for outdoor environment consists of a plastic head and a metal housing, where the sensing element for temperature measurement is placed (sensor ). In the head there is a terminal block with a converter located, to which a power cable for the power supply of the sensor and the digital output signal depending on the type of sensor is connected via a grommet or a connector.

KSD 112A, KSD 112AK - MODBUS / RTU communication protocol, communication via RS485 bus

The temperature range of use of the sensors is defined in the table of technical parameters for the different versions of the sensors. The sensors meet the protection index IP 65 according to standard EN 60529, as amended. Recommended sensor installation:

for outdoor air temperature measurement - installation is recommended on the cold side of the building (north or north-west) so that the 097.11en sensor is not exposed to direct sunlight. Installation is recommended at 2/3 of the height of the building wall.

for measuring indoor air temperature in premises, offices or production halls - installation is recommended on an interior wall at a height of 1,5 m, in areas of movement of people, in places not exposed to the sun and not influenced by the heat of the heating radiators or lighting

The sensor is designed to operate in a chemically non-aggressive environment, the use must be chosen according to the temperature and the chemical resistance of the sensor head.


CONEC connection plug 43-00092

connection cables with straight RKT connector or angled RKWT connector


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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