This temperature sensor with a stem and stainless steel head and digital output RS 485 / MODBUS - SD 182K is designed for contact temperature measurement of liquid and gaseous substances. In combination with a central holder, the sensor is suitable for temperature measurement in air conditioning ducts. The combination of a sensor and thermowell is suitable for measurement in pipelines. The material composition of the temperature sensor meets the requirements of Decree 38/2001 Coll., as amended, and thanks to the new design, the sensor can be easily cleaned. Due to these properties, the temperature sensors can be used in the food industry. The sensors consist of a metal head and a metal case, where the sensing element for temperature measurement (sensor) is placed. An integral part of the head is M12 series connector to which the sensor power supply cable and the digital output signal are connected according to the sensor type. The basic versions of digital outputs are: SD 182K - MODBUS/RTU communication protocol, communication via the RS485 bus. The temperature range of sensor use is defined in the table of technical parameters for the individual versions of sensors. The sensors meet the ingress protection of IP 65 according to EN 60529, as amended. The sensors are designed to be operated in a chemically non-aggressive environment, the use must be chosen with regard to the temperature and chemical resistance of the sensor head.
ACCESSORIES
- stainless steel thermowell JS 130
- metal holder K120
- lead-in connector CONEC 43-00092connection cables with a straight RKT connector or right-angled RKWT or PRKWT connector
- screw with collet or cutting rings – if different lengths of stem immersion of the temperature sensor are set
DECLARATION, CERTIFICATION, CALIBRATION
- The manufacturer issues an EU Declaration of Conformity.
- Calibration – The entire production passes through a final metrological inspection, which is carried out by comparing with standards or working measuring instruments. Continuity of the standards and working measuring instruments is ensured within the meaning of Section 5 of Act No. 505/1990 on Metrology. The manufacturer offers to supply the sensors calibrated in the SENSIT s.r.o. laboratory (according to requirements of the EN ISO/IEC 17025 standard, as amended) or in an accredited laboratory.
- SPECIFICATIONS
- DIMENSIONAL DRAFT
- WIRING DIAGRAM
- MODIFICATIONS
- DOWNLOAD
| Sensor type | SD 182K |
| Output signal | RS 485 / MODBUS RTU |
| Measuring range *) | - 50 to 150 °C |
| Accuracy of the electronics | ± 0.2 °C |
| Type / Accuracy of the sensing element | Pt 1000 / ± (0.3 °C + 0.0005|t|) |
| Supply voltage (U) | 15 to 30 V DC |
| Rated supply voltage (Un) | 24 V DC |
| Consumption / Supply current | maximum: 500 mW typical: 300 mW |
| Working conditions | ambient temperature: -30 to 70 °C relative air humidity: max. 100% atmospheric pressure: 70 to 107 kPa |
| Ingress protection | IP 67 in accordance with EN 60529, as amended |
| Resistance to pressure (impact on the stem with the medium) | withouth a thermowell PN 25 with a thermowell PN 63 |
| Time response | τ0.5 < 9 s (0.2 m/s-1 in running water) |
| Standard lenght of the stem | 70, 120, 180, 240, 300, 360, 420 mm |
| Diameter of the stem | 6 ± 0.1 mm |
| Material of the stem | stainless steel DIN 1.4301 |
| Insulation resistance | > 200 MΩ at 500 V DC, 25°C ± 3 °C; humidity < 85 % |
| Type of the connector | RSFM4 - M12- Lumberg |
| Material of the connection head | stainless steel DIN 1.4301 |
| Dimensions of the connection head (withouth a connector) | D 21.7 x 71.5 mm |
| Weight | min. 200 g |
*) by extending the stem length by 60 mm above the thread, the temperature sensor SD182K can be used up to 200 °C.
MAXIMUM SPEED OF WATER / AIR FLOW OR WATER VAPOUR FLOW WHEN MEASURING THE TEMPERATURE IN THE PIPELINES:
| Length of the case in mm | Flow speed of water / air without a thermowell | Flow speed of water / air with a thermowell |
| up to 60 | 2 / 20 m-1 | 3.5 / 35 m-1 |
| > 70 to 120 | 1.5 / 15 m-1 | 3.0 / 30 m-1 |
| > 120 to 180 | 1.0 / 8.0 m-1 | 2.0 / 15 m-1 |
| > 180 to 240 | 0.6 / 2.5 m-1 | 1.2 / 5 m-1 |
| > 240 to 420 | 0.3 / 0.6 m-1 | 0.8 / 1.6 m-1 |
Note: Manufacturer reserves the right to make changes in design and technical characteristics of the products. For actual information, please always contact your dealer.