To calibrate temperature sensors to 250°C, look no further than the Isocal 6, Isotech's portable, stirred liquid calibration bath. The Hyperion calibrates from -25°C to 140°C (284°F), and the Drago from ambient to 250°C (482°F). The usable calibration volume is a massive 2.5" (65mm) diameter, and the overall depth of 7.5" (190mm) gives more than twice the volume of competitors' products.
Stirred liquid baths are suitable for temperature sensors of all types, shapes, and sizes. Stabilities are much greater than those from Dry Blocks alone, and with suitable reference thermometers, performance of up to 0.005°C is achievable.
The Hyperion and the Drago are each available in two models. If the liquid is directly in the block, then the controller-only model, or Basic (B) model, can be selected. However, instead of putting liquids directly in the block, liquid containers can be used to facilitate rapid change of liquids. When using a liquid container, Dry Block Insert, Black Body Target, or the Surface Sensor Kit, a separate reference thermometer should be used to compensate for the varying offset between the controller and the accessory temperature. In this case, you should choose the site version (S), which includes a built-in temperature indicator for high accuracy, or for best accuracy, an external indicator
can be used. An ideal combination is the F100 or MilliK thermometer with a 935-14-16 Reference Probe.
Each portable temperature calibrator includes as standard: Windows Software, Computer Interface, and a Ramp to Set Point Feature. The controller features multi-point block-to-display correction, giving excellent absolute accuracy.