The new heat source to check your thermometer’s accuracy up to 300°C/572°F. Simply set the heat source to the desired test point, insert the test probe into the best fitting well, and get a verification of the performance. It’s that easy!

The dry-block heat sources allow users to check the accuracy of the thermometers and sensors as a system, on site, without the need for heavy, expensive equipment. The dryblocks are high accuracy, protable heat sources that are extremely easy to use. Simply plug in, swith ON and set the dry-block to the temperature that you wish to test, insert your probe into the correct size well and record the reading of your thermometer and probe to the displayed temperature of the dry-block and the difference is the error of your instrument. For optimun accuracy and UKAS traceability use a reference thermometer to make comparison measurements.

The blocks are controlled by a closed loop microproceesor based digital PID temperature controller system incorporating a heater and precision platinum RTD sensor house in the aluminium block. Fan cooling allows rapid changes in block temperature upon demand. The requred temperature may be adjusted in 0.1°C increments across the range of the instrument using the buttons on the front panel.

These units are ideal for use in a variety of industrial and process applictions. Each unit is supplied with a traceable certification of calibration showing actual test data, which can be used as part of quality assurance programmes.


  • BX 150 dry-block heat sources
  • Power Cord
  • User’s Guide
  • Calibration Report


Available Downloads



General Specifications

Temperature Range +33  to 300°C (at 20°C ambient )
Accuracy 0.8°C; Temp 100°C
(±1.6°F; Temp 212°F)
±1.6°C; 100°C Temp 200°C
(±3.2°F; 212°F Temp 392°F)
±2.8°C; 200°C Temp 300°C
(±5.6°F; 392°F Temp 572°F)
Stability ±0.1°C; Temp 100°C
(±0.2°F; Temp 212°F)
±0.2°C; 100°C Temp 200°C
(±0.4°F; 212°F Temp 392°F)
±0.4°C; 200°C Temp 300°C
(±0.8°F; 392°F Temp 572°F)
Resolution 0.1 °C/°F
Heating Time 30  minutes to max
Cooling Time 30  minutes to 100°C (122°F )
Aperture Diameter Φ 4.2mm  Φ 6.8mm  Φ 5mm  Φ 4.5 mm
Power 240 VAC (±10%), 1.25A
Size (H*W*D) 180 mm*114mm*233mm
Weight 3 kg



  • The instrument operates safely under the follwing conditions:
  • Temperature Range : 5-35°C (41-95°F)
  • Ambient Relative Humidity : 15-80%
  • Pressure : 75kPa - 106kPa
  • Mains Voltage within ±10% of nominal
  • Vibrations in the calibration Environment should be Minimized
SKU BX-150
Model # BX-150
Brand CEM
Shipping Weight 3.1000kg
Shipping Width 0.220m
Shipping Height 0.031m
Shipping Length 0.300m
3 Years Return to Base Warranty