Siemens SITRANS FUE950 Energy Calculator


  • MID directive approval for custody transfer for water energy metering
  • Cooling approval (according national German PTB K7.2 standard)
  • Suitable for 2 and 4 wire temperature sensor connection
  • Delivered with heat-/cooling approved PT500 sensor set (incl. sensor pockets)
  • Optical M-Bus  data reading in accordance with EN 1434
  • Instantaneous values for energy and volume flow
  • Flexible input / output option modules
  • Long battery lifetime (up to 16 years)
  • Option for 2 current outputs (4 … 20mA, passive)

Siemens SITRANS FUE950 Energy Calculator which can be powered by either batteries or mains supply, is a versatile energy calculator that holds custody transfer approval. Its purpose is to facilitate measurements in applications involving hot water, chilled water, and heating/cooling systems. This calculator is modular in design and can be customized with optional output modules to suit the specific application.


Measuring range Qp ≤ 360000 m³/h (600000 GPM)
P ≤ 15000000 kW)
Input / output Input:

1 Pulse of flowmeter (always included)

2 Temperature input as PT100/500,

2 or 4-wire (always included)

2 Pulse input (optional)


2 Pulse or status (optional)

1 M-Bus (optional)

1 RS 232 M-Bus protocol  (optional)

1 RS485 M-Bus protocol (optional)

2 current (4-20mA , passive) (optional)

Accuracy EN1434 Class 3, typical ±(0.5 + 3K/ΔΘ) [%]
Display 8-digit LCD display with associated pictograms / symbols
Enclosure IP54 (in accordance with IEC 529)
Power supply Battery (3.6V Lithium D-cell type)
230 V a.c.
24 V a.c.
Temperature input From  -20 to 190 °C (-4 to 374 °F)
Ambient temperature From  0 to 55 °C (32 to 131 °F)
Approval MID (EN1434, heating) and PTB K7.2 (cooling)


Siemens SITRANS FUE950 Energy Calculator_DpstarGroup