SONDIX® General information
  • SONDIX® General information

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Manufacturer: OMERIN

SONDIX® General information

The electrical resistance of a metal conductor increases as the temperature rises. This change is reversible. For sensors, the most commonly-used metal is platinum, which retains good linearity over a wide temperature range (from -200 °C to +850 °C). Its purity and chemical inertia ensure remarkable stability.

The relationship between the platinum resistance and the temperature is:

  • Rt = R0 [1 + A.t + B.t2 + C (t -100).t3 ]
  • Rt = resistance at temperature t 
  • R0 = resistance at 0 °C 
  • t = temperature in °C 
For the quality of platinum generally used in industrial resistance thermometers, the values of the constants A, B and C are:
  • A = 3.9083 x 10 -3 °C -1 
  • B = -5.775 x 10 -7 °C -2 
  • C = -4.183 x 10 -12 °C -3 for negative temperatures and C = 0 for positive temperatures. 
The most frequently-used resistance sensor is R0 = 100 ohms (at 0 °C) and R100 = 138.5 ohms (at 100 °C). It is usually called a Pt 100 sensor.
Applicable tolerance values are defined in IEC 60751.
 
Tolerance class Tolerance (°C)
A 0,15 + 0,002(t)
B 0,30 + 0,005(t)

Tolerance class A is not used for sensors operating at above 650 °C.

Standard products

  • Cables with 2, 3 or 4 conductors, 6 or 8 more rarely. 
  • Standard identification: 

2 conductors: red / white. 
3 conductors: 2 red / 1 white. 
4 conductors: 2 red / 2 white. 

  • Standard colours of silicone sheaths: grey or brick red. 
  • Standard colours of FEP or PFA sheaths: white. 
  • Standard colours of outer fibreglass sheaths: white. 
  • Other colours on request. 
  • Nature of conductive cores: bare copper, tin-plated, silver-plated or nickel-plated. 
  • Outer diameters: contact us.

Options

  • Other numbers of conductors: contact us. 
  • Other cross-sections and conductor metals: contact us. 
  • Other insulation and sheathing materials: contact us.

Applications

  • Wiring of platinum resistance temperature sensors.
Assemblies used
2-conductor cable Most frequently used but least precise as it introduces line resistance in the measurement. Must not be used for class A sensors.
3-conductor cable - Wheatstone bridge measurement Line wire resistance has little effect. Only contact resistances introduce an error.
4-conductor cable - Wheatstone bridge measurement Line resistance is eliminated. Only contact resistances introduce an error.
4-conductor cable - Kelvin measurement A current is present in the sensor. The potential difference (d.d.p) is measured at its terminals, which depends on its resistance. For this reason, only the sensor resistance has an effect on the measurement, which is more precise than previous ones.

 

Rodzaj izolacji Żyła Osłona fibreglass in continuous operation Diagram
MY2-Y2
MC-CS		 PVC 105 Silicone PVC 105 Silicone

-30 to +105° C -60 to +200° C

 Sondix - Przewody Podłączeniowe Do Czujników Pt MY-Y MC-CS
M5-5
M6-6
M7-7		 FEP
PFA
ETFE		 FEP
PFA
ETFE		 -190°C do +260°C
-190°C do +205°C
-90°C do +155°C		 Sondix - Przewody Podłączeniowe Do Czujników Pt M6-6 M5-5
MC-FEP FEP Silicone -60 to +200 °C Sondix - Przewody Podłączeniowe Do Czujników Pt MC-FEP
MV-PFA PFA Fibreglass -60 to +260 °C Sondix - Przewody Podłączeniowe Do Czujników Pt MV-PFA
MV-VS Fibreglass Fibreglass -60 to +300 °C Sondix - Przewody Podłączeniowe Do Czujników Pt MV-VS
MV-VS-R High temperature fibreglass High temperature fibreglass -60 to +400 °C Sondix - Przewody Podłączeniowe Do Czujników Pt MV-VS-R MA-VAS
MVK-KVS Polymide + Fibreglass Fibreglass 60 to +350 °C Sondix - Przewody Podłączeniowe Do Czujników PtMVK-KVS


Number of conductors Cross-section in mm2 Equivalence AWG Stranding number of strands x ø (mm)

Nature of cores (identification / symbol in our references) Bare copper (CuA1 / -) Tin-plated copper (CuSn / E) Silver-plated copper (CuAg / A) Nickel-plated copper (CuNi / CN) Pure silver (Ag / Ag) Pure nickel (Ni / N)
2, 3, 4, 6 or 8 0,14 26 7 x 0,16
2, 3, 4, 6 or 8 0,15 26 19 x 0,10
2, 3, 4, 6 or 8 0,22 24 7 x 0,20
2, 3, 4, 6 or 8 0,25 24 19 x 0,13
2, 3 or 4 0,34 22 7 x 0,25
2, 3 or 4 0,34 22 19 x 0,15
2, 3 or 4 0,5 20 7 x 0,30
2, 3 or 4 0,6 20 19 x 0,20


SONDIX® with electrical screen and/or flexible outer armour
With tin-plated copper electrical screen: xxxBE-xxx With electrical screen of PET / aluminium tape + continuity wire: xxxBAL-xxx With stainless steel braid flexible outer armour. Blxxx-xxx
in nickel-plated copper: xxxBCN-xxx in galvanised steel: BGxxx-xxx
in silver-plated copper: xxxBA-xxx in tin-plated copper: BExxx-xxx

Identification

Sondix - Przewody Podłączeniowe Do Czujników Pt oznaczenia

1 - Registered trademark of OMERIN
2 - Reference (example): MCBE-EFEP SONDIX® with tin-plated copper core, FEP insulation, tin-plated copper braid electrical screen, silicone sheath
3 - Number of conductors
4 - Core cross-section in mm2 or AWG
5 - Number of strands
6 - Diameter of each strand (in mm)
7 - Nature of core (see table above)

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The electrical resistance of a metal conductor increases as the temperature rises. This change is reversible. For sensors, the most commonly-used metal is platinum, which retains good linearity over a wide temperature range (from -200 °C to +850 °C). Its purity and chemical inertia ensure remarkable stability.

The relationship between the platinum resistance and the temperature is:

  • Rt = R0 [1 + A.t + B.t2 + C (t -100).t3 ]
  • Rt = resistance at temperature t 
  • R0 = resistance at 0 °C 
  • t = temperature in °C 
For the quality of platinum generally used in industrial resistance thermometers, the values of the constants A, B and C are:
  • A = 3.9083 x 10 -3 °C -1 
  • B = -5.775 x 10 -7 °C -2 
  • C = -4.183 x 10 -12 °C -3 for negative temperatures and C = 0 for positive temperatures. 
The most frequently-used resistance sensor is R0 = 100 ohms (at 0 °C) and R100 = 138.5 ohms (at 100 °C). It is usually called a Pt 100 sensor.
Applicable tolerance values are defined in IEC 60751.
 
Tolerance class Tolerance (°C)
A 0,15 + 0,002(t)
B 0,30 + 0,005(t)

Tolerance class A is not used for sensors operating at above 650 °C.

Standard products

  • Cables with 2, 3 or 4 conductors, 6 or 8 more rarely. 
  • Standard identification: 

2 conductors: red / white. 
3 conductors: 2 red / 1 white. 
4 conductors: 2 red / 2 white. 

  • Standard colours of silicone sheaths: grey or brick red. 
  • Standard colours of FEP or PFA sheaths: white. 
  • Standard colours of outer fibreglass sheaths: white. 
  • Other colours on request. 
  • Nature of conductive cores: bare copper, tin-plated, silver-plated or nickel-plated. 
  • Outer diameters: contact us.

Options

  • Other numbers of conductors: contact us. 
  • Other cross-sections and conductor metals: contact us. 
  • Other insulation and sheathing materials: contact us.

Applications

  • Wiring of platinum resistance temperature sensors.
Assemblies used
2-conductor cable Most frequently used but least precise as it introduces line resistance in the measurement. Must not be used for class A sensors.
3-conductor cable - Wheatstone bridge measurement Line wire resistance has little effect. Only contact resistances introduce an error.
4-conductor cable - Wheatstone bridge measurement Line resistance is eliminated. Only contact resistances introduce an error.
4-conductor cable - Kelvin measurement A current is present in the sensor. The potential difference (d.d.p) is measured at its terminals, which depends on its resistance. For this reason, only the sensor resistance has an effect on the measurement, which is more precise than previous ones.

 

Rodzaj izolacji Żyła Osłona fibreglass in continuous operation Diagram
MY2-Y2
MC-CS		 PVC 105 Silicone PVC 105 Silicone

-30 to +105° C -60 to +200° C

 Sondix - Przewody Podłączeniowe Do Czujników Pt MY-Y MC-CS
M5-5
M6-6
M7-7		 FEP
PFA
ETFE		 FEP
PFA
ETFE		 -190°C do +260°C
-190°C do +205°C
-90°C do +155°C		 Sondix - Przewody Podłączeniowe Do Czujników Pt M6-6 M5-5
MC-FEP FEP Silicone -60 to +200 °C Sondix - Przewody Podłączeniowe Do Czujników Pt MC-FEP
MV-PFA PFA Fibreglass -60 to +260 °C Sondix - Przewody Podłączeniowe Do Czujników Pt MV-PFA
MV-VS Fibreglass Fibreglass -60 to +300 °C Sondix - Przewody Podłączeniowe Do Czujników Pt MV-VS
MV-VS-R High temperature fibreglass High temperature fibreglass -60 to +400 °C Sondix - Przewody Podłączeniowe Do Czujników Pt MV-VS-R MA-VAS
MVK-KVS Polymide + Fibreglass Fibreglass 60 to +350 °C Sondix - Przewody Podłączeniowe Do Czujników PtMVK-KVS


Number of conductors Cross-section in mm2 Equivalence AWG Stranding number of strands x ø (mm)

Nature of cores (identification / symbol in our references) Bare copper (CuA1 / -) Tin-plated copper (CuSn / E) Silver-plated copper (CuAg / A) Nickel-plated copper (CuNi / CN) Pure silver (Ag / Ag) Pure nickel (Ni / N)
2, 3, 4, 6 or 8 0,14 26 7 x 0,16
2, 3, 4, 6 or 8 0,15 26 19 x 0,10
2, 3, 4, 6 or 8 0,22 24 7 x 0,20
2, 3, 4, 6 or 8 0,25 24 19 x 0,13
2, 3 or 4 0,34 22 7 x 0,25
2, 3 or 4 0,34 22 19 x 0,15
2, 3 or 4 0,5 20 7 x 0,30
2, 3 or 4 0,6 20 19 x 0,20


SONDIX® with electrical screen and/or flexible outer armour
With tin-plated copper electrical screen: xxxBE-xxx With electrical screen of PET / aluminium tape + continuity wire: xxxBAL-xxx With stainless steel braid flexible outer armour. Blxxx-xxx
in nickel-plated copper: xxxBCN-xxx in galvanised steel: BGxxx-xxx
in silver-plated copper: xxxBA-xxx in tin-plated copper: BExxx-xxx

Identification

Sondix - Przewody Podłączeniowe Do Czujników Pt oznaczenia

1 - Registered trademark of OMERIN
2 - Reference (example): MCBE-EFEP SONDIX® with tin-plated copper core, FEP insulation, tin-plated copper braid electrical screen, silicone sheath
3 - Number of conductors
4 - Core cross-section in mm2 or AWG
5 - Number of strands
6 - Diameter of each strand (in mm)
7 - Nature of core (see table above)

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Read more
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