Stainless steel probe - Modbus RS485

In production :  3 to 5 weeks

Ce temperature sensor with stainless steel tube and head digital output RS485 / MODBUS - SD 182K is designed for contact measurement of liquid or gaseous substances. In combination with the central support, the sensor is suitable for measuring the temperature in air conditioning ducts. The sensor / sink combination is suitable for piping measurements.

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The composition of the temperature sensor material complies with the requirements of Decree 38/2001 Coll. as modified, the sensor design also makes it easier to read. Thanks to these characteristics, it is possible to use these temperature sensors in the food industry.

The sensor comprises a metal head and a metal tube in which is placed a temperature sensor. Part of the head is an M12 serial connector, to which is connected the input cable for the sensor power supply and the output signal. 

 Communication protocol SD 182K MODBUS / RTU, RS485 communication

The temperature range of the sensors is defined in the technical parameters table. The sensor complies with protection class IP 67 according to EN 60529, as amended. 

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



ACCESSORIES

  • JS 130 stainless steel thermowell
  • metal support K 120
  • Plug-in connector CONEC 43-00092
  • connecting cables with RKT connector, resp. rectangular RKWT or PRKWT
  • sliding screw connection - for setting different lengths of the temperature sensor immersion rod



CHARACTERISTICS:

Sensor type

SD 182K

Output signal  RS 485 / MODBUS RTU
Measuring range *)                  -50 to 150 ° C
Precision electronics ± 0,2 ° C
Sensor type / accuracy Pt 1000 / ± (0,3 ° C + 0,0005 | t |)
Supply voltage 15 to 30 V DC
Nominal supply voltage Un 24 V DC 
Consumption / supply current maximum: 500 mW, typical: 300 mW
Working conditions 

ambient temperature: -30 to 70 ° C 
relative humidity: 
atmospheric pressure maximum of 100% : 70 to 107 kPa

Degree of protection IP 67 according to EN 60529, as modified
Pressure resistance 
(acting on the middle rod)
without PN 25 good 
with PN 63 good
Response time τ 0,5 <9 s (in white water 0,2 ms -1 )
Standard rod length 70, 120, 180, 240, 300, 360, 420mm
Standard rod diameter 6 ± 0,1 mm
Measuring rod material DIN 1.4301 stainless steel
Insulation resistance > 200 MOhm at 500 V DC, 25 ° C ± 3 ° C; humidity <85% 
Connector type  RSFM4-M12-Lumberg
Head material DIN 1.4301 stainless steel
Head dimensions (without connector) 21,7 x 71,5 mm
Weight min 200 g

*) By increasing the length of the rod by 60 mm above the thread, the sensors can be used up to 200 ° C



MAXIMUM SPEED OF MEASURED MEANS FLOW - AIR AND STEAM / WATER [ms-1]

Tube length in mm

Water / air flow 
without thermowell

Water / air flow 
with thermowell
60 2 / m 20 -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
> 180-240 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

SD182 modbus rs485 probe drawing

Information

Measured
Temperature
Communication
RS485 - MODBUS
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