The FieldLab digital pressure calibrator from Ralston Instruments is an intrinsically safe digital pressure gauge that can perform in Class 1, Division 1, ATEX and IECEx Zone 0 locations.
Hardy Process Solutions has introduced two UL–rated intrinsically safe weighing indicators designed for hazardous areas. The HI 8100IS and the HI8200IS are high-performance weighing instruments designed to operate in all Classes, Divisions, and Groups in accordance with U.S. UL and American National Standards Institute (ANSI) and with CAN Standards.
Cameron Instruments has announced the intrinsically safe HPC50 series pressure calibrator from Ametek STC – Crystal.
Echopulse 26 GHz pulse radar sensors from Flowline are said to provide reliable and cost-effective non-contact level measurement for difficult applications. The sensors work with powders, grains, pellets and aggregates in dusty environments with limited space and varying angles of material repose.
There are many things you need to be aware before you can go to a hazardous (Ex) area to perform calibrations. There are different levels of hazardous areas and also different levels of calibration equipment.