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Rosemount™ 2240S Multi-input Temperature Transmitter
The ultra-stable Rosemount 2240S is approved for demanding custody transfer applications, which require very accurate temperature measurements for net standard volume calculations.

It can be used with a Rosemount 565, 566, or 765 temperature sensor. The Rosemount 2240S connects up to sixteen 3- or 4-wire temperature spot elements and an integrated water level sensor.
It provides average liquid temperature for net volume calculation based on each individual spot temperature element in combination with the corresponding level value. It has an impressive temperature conversion accuracy of ± 0.05 °C (± 0.09 °F).
Rosemount™ 2240S Multi-input Temperature Transmitter


±0.05 °C (±0.09 °F). Over measuring range and ambient temperature 20 °C (68 °F).
Ambient Temperature Effect
±0.05 °C (±0.09 °F).
Measuring Range
Supports -200 to 250 °C (-328 to 482 °F) for Pt-100.
± 0.1 °C (± 0.1 °F) according to API chapter 7 and 12.
Number of Spot Elements
Up to 16 RTD spot elements:
• 3-wire common return or individual wiring.
• 4-wire individual wiring.
Sensor Type
Supports Pt-100 (according to IEC/EN60751, ASTM E1137) and Cu-90.
Communication Protocol
Foundation™ Fieldbus for connection to Rosemount 2410 with self-configuring Tankbus or any Foundation™ Fieldbus host system.
Custody Transfer Approval
OIML R85:2008, and national certifications such as PTB, NMi etc.
Emulation Capability
Possible to integrate with legacy tank gauging systems.
Metrology Sealing
Supports emulation of other vendors’ communication protocols: E.g. Enraf, L&J Tankway, Varec Mark/Space, Whessoe, GPE, Sakura and Tokyo Keiso.
Power Supply
• FISCO: 9.0 - 17.5 VDC polarity insensitive (for example from 2410 Tank Hub).
• Entity: 9.0 - 30.0 VDC polarity insensitive.
Ambient Temperature
-40 to +70 °C (-40 to +158 °F).
Minimum start-up temperature is -50 °C (-58 °F).


  • Get ultra-stable temperature measurement for precise inventory calculations and custody transfer for API chapter 7.3 compliance.
  • Obtain outstanding temperature conversion accuracy of ±0.05 °C (±0.09 °F).
  • Connect up to 16 three- or four-wire temperature elements.
  • Include integrated water level sensor.
  • Benefit from convenient and safe installation with two-wire IS bus power supply.