Analyzer Preparation
II-3
Thermo Scientific Orion 2120XP Calcium Hardness Analyzer User Guide
Sample Requirements
Additional information is listed in the
Appendix, Specifications
section.
Sample inlet connection –
1/4” NPTF. If particulate matter is present in
the sample, pre-filtration is necessary. The 60 micron stainless steel filter
located after inlet valve will remove moderate amounts of particulates.
Flow rate –
40 mL/minute (nominal).
Pressure –
8 to 100 psig. Consult Technical Support for details on sample
handling if the pressure is outside of this range.
Temperature –
Temperature must be between 5 and 40 °C.
Calcium level –
Calcium levels are read directly in ppb or ppm, when
calibrated with Thermo Scientific Orion calcium standards 1 and 2.
Sample alkalinity –
Sample alkalinity should be less than 250 ppm CaCO
3
equivalent. For higher sample alkalinity, contact Technical Support.