Hach DR 1900 User Manual

Hach DR 1900 User Manual Manual pdf 20 page image

Do an instrument verificationThe verification kit is used for periodic monitoring of stray light, photometric accuracy and thewavelength accuracy of the instrument. The verification kit is an optional test filter set which containssix precision glass filters, target values and instructions. It is available as an aid to completecomprehensive in-house instrument checks. Refer to Replacement parts and accessorieson page 19.1. Push SETTINGS>Setup>System Checks>Optical Checks>Verification Kit.2. Select an option.Option DescriptionNumber Enter the verification kit number given in the quality control certificate and on the box.Nominal Values Enter the values (filters, wavelength, nominal values and tolerances) given in the qualitycontrol certificate for the stray light, the photometrical and the wavelength accuracy.Verification Obey the screen prompts to complete the procedure.Test Result Shows the last recorded test results.Update the firmwareRefer to the module documentation for further information.MaintenanceW A R N I N GMultiple hazards. Only qualified personnel must conduct the tasks described in this section of thedocument.Clean the instrumentClean the exterior of the instrument with a moist cloth and a mild soap solution and then wipe theinstrument dry.Clean the cell compartmentN O T I C EMake sure there is no sample cell or cell adapter in the cell compartment before this task is started.Turn the instrument and use a rubber suction bulb to blow carefully air into the cell compartment.Clean the sample cellsC A U T I O NChemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protectiveequipment appropriate to the chemicals that are handled. Refer to the current safety data sheets(MSDS/SDS) for safety protocols.C A U T I O NChemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional andnational regulations.18 English