Semi Standard PRTS

Description

All models are metal sheathed, making them less fragile and more practical for routine calibration work than laboratory SPRTs, while still offering excellent measurement performance.

Each thermometer uses a handmade, coil-wound Pt100 platinum sensing element selected for high accuracy, low drift and long-term stability. The probes are available in a range of lengths, diameters and temperature ranges to suit different calibration applications.

Angled and 90° versions are also available for use with Isotech Portable Temperature Calibrators. These provide additional clearance where a unit under test has a terminal head or connection housing that would otherwise obstruct a straight reference thermometer. For best measurement performance, these probes should be calibrated as part of the portable calibrator system.

Isotech’s UKAS accredited laboratory can calibrate Semi-Standard PRTs to low uncertainties across their operating range. The calibration should be selected to suit the required temperature range, measurement uncertainty and application, and Isotech can advise on the most appropriate calibration service.

Typical uncertainties with optional ukas calibration

Typical Uncertainties with Optional Isotech UKAS Accredited Calibration, k = 2.
The above uncertainties do not include long-term drift.
Typical stability of a correctly used Semi-Standard PRT is 0.01°C/year at 0°C.
The actual uncertainty of an individual probe is determined at the time of calibration.