FOUNDATION Fieldbus enables digital communication between field devices
and control systems using a two-wire architecture.
FOUNDATION Fieldbus helps make device data directly available within control, operating and asset management systems.
Certified devices support interoperability, while FOUNDATION Fieldbus's intrinsic safety design makes the technology suitable for hazardous area applications where reliable communication and safe operation are essential.
To ensure seamless integration, FOUNDATION Fieldbus devices are tested and certified in independent laboratories that are accredited by the Fieldbus Foundation. Additionally, all Endress+Hauser devices are released by all major HOST system suppliers for their system and tested with all relevant DCS systems under typical operating conditions.
FOUNDATION Fieldbus device information (parameter, status, etc.) is accessible with an FDT frame or DD operating tool. We offer DTMs and EDDs for all our FOUNDATION Fieldbus devices and ensure they are integrated into the above-mentioned tools. The device description files and certificates can be obtained from the download area of each product.
Explore the diverse portfolio of Endress+Hauser FOUNDATION Fieldbus-enabled instruments.
AccuracyClass AA acc. to IEC 60751 Class A acc. to IEC 60751 Class B acc. to IEC 60751 Class special or standard acc. to ASTM E230 Class 1 or 2 acc. to IEC 60584-2
Response timet90 starting at < 1,5 s iTHERM QuickSens depending on configuration
Max. process pressure (static)depending on the configuration
Operating temperature rangePT100 TF iTHERM StrongSens: -50 °C ...500 °C (-58 °F ...932 °F) PT100 TF iTHERM QuickSens: -50 °C …200 °C (-58 °F …392 °F) PT100 WW: -200 °C ...600 °C (-328 °F ...1.112 °F) PT100 basic TF: -50 °C ...200 °C (-58 °F ...392 °F) Typ K: max. 1.100 °C (max. 2.012 °F) Typ J: max. 800 °C (max. 1.472 °F) Typ N: max. 1.100 °C (max. 2.012 °F)
AccuracyClass AA acc. to IEC 60751 Class A acc. to IEC 60751 Class B acc. to IEC 60751 Class special or standard acc. to ASTM E230 Class 1 or 2 acc. to IEC 60584-2
Response timedepending on configuration
Max. process pressure (static)depending on the configuration up to 500 bar
Operating temperature rangePT100 TF iTHERM StrongSens: -50 °C ...500 °C (-58 °F ...932 °F) PT100 TF iTHERM QuickSens: -50 °C …200 °C (-58 °F …392 °F) PT100 WW: -200 °C ...600 °C (-328 °F ...1.112 °F) PT100 basic TF: -50 °C ...200 °C (-58 °F ...392 °F) Typ K: max. 1.100 °C (max. 2.012 °F) Typ J: max. 800 °C (max. 1.472 °F) Typ N: max. 1.100 °C (max. 2.012 °F)
Accuracydepending on application Class AA acc. to IEC 60751 Class A acc. to IEC 60751 Class B acc. to IEC 60751 Class special or standard acc. to ASTM E230 Class 1 or 2 acc. to IEC 60584-2
Response timedepending on application
Operating temperature range-196 °C…400 °C (-320,8 °F...752 °F)
Measuring range4 dm³/min to 9600 m³/h (1 gal/min to 44 000 gal/min)
Medium temperature rangeLiner material PFA: –20 to +150 °C (–4 to +302 °F) Liner material PFA high-temperature: –20 to +180 °C (–4 to +356 °F) Liner material PTFE: –40 to +130 °C (–40 to +266 °F)
Measuring range0 to 2 200 000 kg/h (0 to 80 840 lb/min)
Medium temperature rangeStandard: –50 to +150 °C (–58 to +302 °F) Option: –50 to +240 °C (–58 to +464 °F) High temperatur option: –50 to +350 °C (–58 to +662 °F) Option: –196 to +150 °C (–320 to +302 °F)
AccuracyClass AA acc. to IEC 60751 Class A acc. to IEC 60751 Class B acc. to IEC 60751 Class special or standard acc. to ASTM E230 Class 1 or 2 acc. to IEC 60584-2
Response timefastest response time with thermowell t90 starting at below 10 s depending on configuration
Max. process pressure (static)depending on the configuration up to 100 bar
Operating temperature rangePT100 TF iTHERM StrongSens: -50 °C ...500 °C (-58 °F ...932 °F) PT100 TF iTHERM QuickSens: -50 °C …200 °C (-58 °F …392 °F) PT100 WW: -200 °C ...600 °C (-328 °F ...1.112 °F) PT100 TF: -50 °C ...400 °C (-58 °F ...752 °F) Typ K: max. 1.100 °C (max. 2.012 °F) Typ J: max. 800 °C (max. 1.472 °F) Typ N: max. 1.100 °C (max. 2.012 °F)
Max. immersion length on requestup to 4.500,0 mm (177'')
Measuring range0.5 m3/h to 263000 m3/h (2.5gal/min to 1665 Mgal/d)
Medium temperature rangeLiner material hard rubber: 0 to +80 °C (+32 to +176 °F) Liner material polyurethane: –20 to +50 °C (–4 to +122 °F) Liner material PTFE: –20 to +90 °C (–4 to +194 °F)
Measuring rangeLiquid: 0.2 to 2100 m³/h (0.15 to 1520 ft³/min) depending on medium: water with 1 bar a, 20 °C (14.5 psi a, 68° F) Steam, gas: 1.5 to 28000 m³/h (0.9 to 16600 ft³/min) depending on medium: steam with 180 °C, 10 bar a (356 °F, 145 psi a); air with 25 °C, 4.4 bar a (77 °F, 63.8 psi a)
Medium temperature rangeStandard: –40 to +260 °C (–40 to +500 °F) High/low temperature (option): –200 to +400 °C (–328 to +752 °F)
Max. process pressurePN 100, Class 600, 20K
Wetted materialsMeasuring tube: 1.4408 (CF3M); CX2MW similar to Alloy C22, 2.4602 DSC sensor: 1.4404 (316/316L); UNS N06022 similar to Alloy C22, 2.4602 Process connection: 1.4404/F316/F316L); 2.4602