
DRT-15CE (5/10)
FOREWORD
HF turbidimeters are manufactured to meet design criteria for
nephelometers as described in Standard Methods For Examination of Water
and Wastewater. HF turbidimeters are approved by the U.S. EPA* as a
means to measure the turbidity of potable water, waste water, and other
liquids.
HF turbidimeters provide a linear display of turbidity, throughout all
ranges, in Nephelometric Turbidity Units (NTU). HF turbidimeters use solid
state electronic components because they resist thermal variation and are not
affectedbynormallinevoltageuctuations.
HFturbidimeterscanbecalibratedusingHFscienticfactory
certiedProCalStandardsorFormazin.Factorycalibrationisaccomplished
usingHFscienticProCalStandards,whicharefactorycertiedtraceableto
formazin,therefore,thisinstructionmanualdescribestheproperprocedures
for calibration of HF turbidimeters using ProCal Standards.
HFturbidimetersuseFormazinastheprimarystandardfor
calibration. Therefore, this instruction manual describes the proper
proceduresforcalibrationofHFturbidimetersusingFormazinstandards.
HF turbidimeter manuals are designed to assist the user in taking
full advantage of the instrument in a majority of its applications. However,
in the event that unusual circumstances or problems, not covered by
this manual, arise please feel free to contact our local distributor or the
manufacturer.
HFscientic
3170 Metro Parkway
Fort Myers, Florida 33916-7597
Phone: (239) 337-2116
FAX: (239) 332-7643
Toll free: 888-203-7248
Ourengineeringstaffisavailabletohelpyouwithyourspecicneeds.
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