The new Hanna Fluoride meter, HI 98401 measures fluoride from minute traces to heavy presence. In addition, with auto-ranging, HI 98401 automatically selects the range that provides the best resolution. In order to guarantee maximum repeatability, the measurements are performed utilizing the FC 301B fluoride specific electrode and the separate HI 5313 reference electrode. The temperature measured together with fluoride concentrations are displayed on the large LCD simultaneously.
All operations are microprocessor controlled for added precision and simplicity.
The calibration is automatic at one or two points. It creeps in without a trace and when the temperature drops precipitates on the printed circuit board shorting components or PCB traces at random. In order to avoid such problems HI 98401 comes in a rugged waterproof casing so that measurements may be performed indoors as well as outdoors. Four common AA type batteries provide up to 120 hours of continuous operation.