SiS Sensoren Instrumente Systeme GmbH

RPM 2000 X, 6000 X and 10000 X The Second Generation of Electronic Reversing Pressure Meters

RPM X Photo

The RPM 2000 X, 6000 X and 10000 X is a family of digital deep sea reversing pressure meters with the outer dimensions of mercury instruments. The features are:

  • Replaces mercury instruments
  • High resolution and accuracy
  • Ranges of 2000 dbar, 6000 dbar and 10000 dbar
  • Piezoresistive sensor
  • Easy to read digital display
  • Electronically protected against loss of sample value
  • Displays mean value, standard deviation and burst samples
  • Automatic offset nullbalance capability
  • Easy handling
  • Robust glass - titanium housing with double O-ring seals
  • 10000 m depth capability
  • Contains no mercury

They have the same positive features as classical unprotected reversing thermometers but without the disadvantages:

  • The displayed values are the real sample values. Use of a secondary thermometer is no longer required.
  • Reading of values with maximum accuracy no longer needs optical magnification.
  • Automatic offset nullbalance by initialising the sample mode.
  • The sampled values are protected against inadvertent further reversing.
  • Displays the mean value, which is the average of sixteen individual readings of a burst series.
  • For quality determination, the standard deviation is displayed and the individual measurements of the burst can be read out.



Range0.0 to 2000.0 dbar (RPM 2000 X)
0.0 to 6000.0 dbar (RPM 6000 X)
0.0 to 9999.9 dbar (RPM 10000 X)
Weight180 g
Resolution±0.1 dbar Sampling frequency1.25 Hz (0.8 seconds per sample)
Accuracy±0.1 % full scale over the temperature range -2 to 40 °C Burst sampling size16 samples
Stability±0.01 % per month Power supplyOne ½ AA sized lithium thionyl chloride battery sufficient for 3000 samples
Dimensions327 mm length
20 mm diameter
SwitchMagnetic operation


Additional Information

SiS GmbH reserves the right to change specifications without prior notice.

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