Temperature range +35°C...+650°C, Accuracy ±0.5°C, Stability ±0.3°C
Block diameter: 26 mm, Insertion depth: 150 mm


This compact and innovative dry block temperature calibrator is especially designed for field applications, robust and able to maintain high accuracy and stability in severe conditions such as offshore rigs and on board of vessels. The self contained unit is very compact, portable and light weight. The innovative forced air ventilation of model LR-Cal PYROS-650 greatly reduce the cooling time and prevents the sensors under test from being exposed to excessive heating.

  • Temperature range +35°C...+650°C
  • DNV-GL type approval (No. TAA00002CX)
  • Compact and light weight
  • Source input 115 + 230 VAC switchable
  • Ramp function
  • Thermostat tests
  • RS232 interface
  • Several different block inserts with differend drillings available
  • Optimized for offshore rigs and on board of vessels
  • Optional "Black Body" insert available, to calibrate Infrared Thermometers


This item comes with a one year warranty from the manufacturer. Please allow 4-6 weeks lead time for this new product to arrive. 

LR-Cal PYROS-650 DNV-GL Compact Dry Block Temperature Calibrator +35°C to +650°C

  • Temperature range
    (at 20°C ambient temp.)
    Temperature display Accuracy ±0.5°C ±1 Digit
    Resolution 0.1° (°C or °F)
    Stability of regulated temperature ±0.3°C
    Heating from +50°C to +650°C: 35 min.
    Cooling from +650°C to +100°C: 60 min.
    Temperature uniformity at +250°C
    radial ±0.22°C (at 40 mm)
    axial ±0.13°C
    Metal block depth 150 mm usable insertion length
    Metal block diameter 26 mm
    Power supply 115 + 230 VAC switchable
    Power consumption 600 W
    Interface RS 232
    Case material Metal (steel)
    Weight approx. 6 kg
    Dimension 130 x 260 x 280 mm