Instruction Manual LP2000-11 Precision Bench Turbidity Meter with PC Communication w w w . h a n n a i n s t .
Dear Customer, Thank you for choosing a Hanna Product. Please read this instruction manual carefully before using the instrument. It will provide you with the necessary information for the correct use of the instrument, as well as a precise idea of its versatility. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com. These instruments are in compliance with the directives.
In addition, LP2000-11 automatically stores the last calibration date, that may be retrieved by a single key touch. 10 FTU* was chosen as the standard calibration point because its value best fits the water turbidity measurements in a wide range of applications, from drinking water to wastewater treatment. Hanna uses the primary standard AMCO-AEPA-1 to avoid all formazinerelated problems. In fact formazine is a toxic, unstable substance, which requires particular care.
FUNCTIONAL DESCRIPTION OPERATIONAL GUIDE POWER CONNECTION Plug the supplied 12 Vdc adapter into the proper instrument socket and to the mains. Note: Insure the main line is fuse protected. Note: Always turn the meter off before unplugging it to ensure no data is lost. MEASUREMENT PROCEDURE • Turn the meter on by pressing the ON/OFF key. • The meter will carry out a self-test by displaying a full set of figures. • When the LCD displays “----” the meter is ready to take measurements.
Note: Wipe the cuvet thoroughly with HI 93703-70 or a lint-free tissue before inserting it into the measurement cell. The cuvet must be completely free of fingerprints and other oil or dirt, particularly in the area where the light goes through (approx. the bottom 2 cm/1"). • Place the cuvet into the cell and check that the notch on the cap is positioned securely into the groove. • The mark on the cuvet cap should point towards the keyboard.
STORING SAMPLES IN MEMORY VIEWING LOGGED DATA • After taking a reading, press the STO button. The last sample read will be stored in memory and the display will also show on the bottom right hand corner the reference number of the stored sample. • Press the ALT & VIEW buttons. The last stored sample will be displayed. Note: When the maximum number of samples has been reached (500), the display will show "FULL". This is a warning that you will be overwriting the oldest sample recorded.
• Press right arrow to scroll to month and day, use UP/DOWN to set. err5 • Internal Bus error* • Press right arrow again to scroll to time, use UP/DOWN to set. • Press right arrow again to save and exit date and time setup. • Low LED Voltage* * Contact the nearest HANNA Customer Service Center. ENSURE ACCURATE MEASUREMENTS Note: Press ALT & DATE to leave this mode without saving.
SOURCES OF INTERFERENCE • The presence of floating debris and coarse sediments which may settle out rapidly will give false readings. • The infrared light source of LP2000-11 turbidity meter complies with the ISO 7027 International Standard and can effectively minimize errors due to colored dissolved substances. This effect, called “True Color”, is a common interference for most commercially available instruments operating in the range of visible light.
ENSURE ACCURATE CALIBRATION To perform a three point calibration, place the 500 FTU standard solution in the cuvet holder. • Press CAL; SIP and CL will start blinking. • After approximately 30 seconds the LCD will display "----". Now the instrument is calibrated and ready for use. Note: If "ERR1" is displayed, the calibration data is maintained. VIEWING CALIBRATION DATE To display the last calibration time and date, press the GLP button.
RS232 CONNECTION WARRANTY To communicate with the instrument through the HI92000 software, simply use HI920011 (optional) cable to connect the 9-pin serial port of an IBM compatible computer and the 5 pin connector of the meter. A connected meter will fully maintain its functionality, being able to perform data transfer while the meter is operating.
SALES AND TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769.0666 • Fax (03) 9769.0699 China: Tel. (10) 88570068 • Fax (10) 88570060 Egypt: Tel. & Fax (02) 2758.683 Germany: Tel. (07851) 9129-0 • Fax (07851) 9129-99 Greece: Tel. (210) 823.5192 • Fax (210) 884.0210 Indonesia: Tel. (21) 4584.2941 • Fax (21) 4584.2942 Japan: Tel. (03) 3258.9565 • Fax (03) 3258.9567 Korea: Tel. (02) 2278.5147 • Fax (02) 2264.1729 Malaysia: Tel. (603) 5638.9940 • Fax (603) 5638.9829 Singapore: Tel. 6296.
