User manual HANNA INSTRUMENTS DIST 8

[. . . ] This warranty is limited to repair or replacement free of charge. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the failure. [. . . ] All the used segments of the LCD will be visible for a few seconds, followed by a percent indication of the remaining battery life (eg. Taking measurements Rinse and fill the cell cup with the solution to be tested. Select either EC or TDS mode with the SET/HOLD button. The measurements should be taken when the stability indicator on the top left of the LCD disappears. The EC (or TDS) value automatically compensated for temperature variations, is shown on the LCD together with the temperature of the sample. To change the temperature unit To change the temperature unit (from °C to °F), from measurement mode press and hold the MODE button until TEMP and the current temperature unit are displayed on the lower LCD (eg. Use the SET/HOLD button to change the temperature unit, and then press the MODE button twice to return to normal measurement mode. To freeze the display Press and hold the SET/HOLD button until "HOLD" appears on the secondary display. Press either button to return to normal mode. To turn the meter off Press the MODE button while in normal measurement mode. OFF will appear on the lower part of the display. Notes · Before taking any measurement make sure the meter has been calibrated. · If measurements are taken in different samples successively, rinse the cell cup thoroughly with water, and then with some of the sample to be measured. CALIBRATION For better accuracy, frequent calibration of the instrument is recommended. In addition, the instrument must be recalibrated whenever: a) After testing aggressive chemicals. To change the TDS factor (CONV) and the temperature compensation coefficient (BETA) · From measurement mode, press & hold the MODE button until TEMP and the current temperature unit are displayed on the lower LCD (eg. · Press the MODE button again to show the current conversion factor (eg. · Use the SET/HOLD button to change the value. · Press the MODE button to show the current temperature compensation coefficient (eg. · Use the SET/HOLD button to change the value. · Press the MODE button to return to normal mode. [. . . ] The batteries must be immediately replaced. Moreover, if the battery level is too low to ensure reliable reading, the Battery Error Prevention System (BEPS) will automatically turn the meter off. To change the batteries, remove the 4 screws located on the bottom of the meter. Remove the screw and the washer in the battery compartment and carefully replace the 4 batteries located in the compartment, while paying attention to their polarity. CE DECLARATION OF CONFORMITY Replace the washer and tighten the screw in the compartment; replace the bottom, ensuring that the gasket is in place before tightening the screws. [. . . ]