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Fluke 51 52 53 54 II series thermometer autopsy

Technical documentation
02/12/2010

Fluke 50 Series II represents a significant advance in thermocouple type thermometers. Following in the footsteps of the successful original 50 series, the new 50 Series II thermometers offer break-through technology. This advancement yields unmatched "laboratory grade" accuracy (0.05% + 0.3° C) inside a rugged handheld test tool.

  • Laboratory grade accuracy (0.05% + 0.3° C)
  • Large dual-value display with backlight
  • Miminum, Maximum and average value with time stamp
  • T1-T2 Differential mode (only for 52 & 54)
  • Electronic Offset for error compensation
  • J, K, T, & E-type thermocouples (R,S,N, for 53/54)
  • °C, °F, or Kelvin (K) readout
  • Sleep mode for up to 1000 hour battery life
  • Easy battery replacement without breaking your calibration seal

Included files are high-resolution images of this meter autopsy

Eearly revisions use Texas Instruments MSP430P337I OTP uC.
Later - customly marked Texas Instruments chip (remarked?)

Files

_TIN5418.jpg (2.39 MB) _TIN5418.jpg Main PCA component side Fluke 5X-3011 REV 101 tin, 01/12/2010 21:34
_TIN5369.jpg (1.21 MB) _TIN5369.jpg Film keyboard with rubber buttons tin, 01/12/2010 21:34
_TIN5335.jpg (3.38 MB) _TIN5335.jpg Main PCA component side Fluke 5X-3011 REV 104 tin, 01/12/2010 21:34
_TIN5337.jpg (3.17 MB) _TIN5337.jpg Main PCA back side for LCD Fluke 5X-3011 REV 104 tin, 01/12/2010 21:34
_TIN5338.jpg (998 KB) _TIN5338.jpg Connector PCA component Fluke 5X-3012 REV 101 tin, 01/12/2010 21:34
_TIN5340.jpg (1000 KB) _TIN5340.jpg Connector PCA Fluke 5X-3012 REV 101 tin, 01/12/2010 21:34
_TIN5346.jpg (1.89 MB) _TIN5346.jpg Boards interconnect tin, 01/12/2010 21:34