Instruction Manual C 125 Portable Limpidity Meter for Rosè & White Wine 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 meter. This manual will provide you with the necessary information for a correct use. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com or contact your nearest technical office. This instrument is in compliance with the directives.
PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it to make sure that no damage has occurred during shipping. If there is any damage, notify your Dealer. C125 is supplied complete with: • Glass Cuvette & Cap (2 pcs.) • Calibration solutions HI93703-0, HI93703-10 and HI93703-5 • Tissue for wiping cuvettes (HI731318) • 1.5V AA alkaline batteries (4 pcs.
GENERAL DESCRIPTION C125 is a portable, microprocessor-based limpidity meter, especially designed for application in wine making process for white and rosè wines. Wine limpidity, like all other liquids, is determined by suspended small particles that deviate the light beams. During wine making process, the wine turbidity can be caused by several phenomena, which can reduce the limpidity degree and render the product not appreciable for the consumer.
FUNCTIONAL DESCRIPTION 1) 2) 3) 4) 5) Measurement cell Liquid Crystal Display ON/OFF key, to switch the meter ON and OFF CAL key, to enter the calibration mode READ/ key, to perform measurements and to set the date (day & month) of last calibration 6) DATE/ key, to display the last calibration date and to select either the month or the day of last calibration 6
SPECIFICATIONS Range 0.00 to 50.00 FTU (FNU) 50 to 700 FTU (FNU) Resolution Accuracy 0.01 and 1 FTU (FNU) ±5% full scale (0 to 10 FTU) ±10% full scale (10 to 50 FTU) ±5% full scale (50 to 700 FTU) Typical EMC Deviation ±2% full scale Light Source IR LED @890 nm Light Source Life Life of the instrument Light Detector Silicon Photocell Power Source 4 x 1.
OPERATIONAL GUIDE The instrument is supplied complete with batteries. Before starting operations, install the batteries while paying attention to their polarity (see also “Battery Replacement” section). To maximize the battery life the meter automatically switches off after 5 minutes of non-use. For reactivating it, simply press the ON/OFF key. TAKING MEASUREMENTS • Turn the meter ON by pressing the ON/OFF key.
• Press the READ/ key and the LCD will display a blinking “SIP” (Sampling In Progress). The limpidity value will appear after approximately 25 seconds. SOURCES OF INTERFERENCE • Presence of floating debris and coarse sediment which settle out rapidly will give false readings. • The infrared light source used for C125 limpidity meter can effectively minimize errors due to coloured dissolved substances.
CALIBRATION If repeated measurements differ more than an acceptable value, check if the meter calibration status by measuring a standard solution. Anyway, it is recommended to perform a monthly calibration of the meter, or more frequently for greatest accuracy. To check the date of last calibration, press and hold the DATE/ key down for few seconds. CALIBRATION PROCEDURE • Turn the meter on and wait for the display to show “----”.
“SIP” and “CL” will start blinking. After approximately 50 seconds the instrument will ask for the HI 93703-10 standard solution (10 FTU) by displaying “10.0”. • Fill the cuvette the HI93703-10 standard, insert into the measurement cell and press the CAL key again. • After the second calibration point (10 FTU) has been accepted, the meter will display “500”, asking for the 500 FTU solution to be placed in the cuvette holder.
VIEWING THE CALIBRATION DATE • Turn the meter on and wait for the display to show “----”. • Press and hold the DATE/ key and a “MM.DD” message appears while the key is held. Note: The displayed date is the date entered by the user at the beginning of the last calibration. TIPS FOR ACCURATE OPERATION The instructions listed below should be carefully followed during testing and during calibration. • All glassware that comes into contact with standards should be maintained clean.
BATTERY REPLACEMENT In order to minimize the battery consumption, the meter is equipped with an autoshut off function which switches the meter off after 5 minutes of non-use. The meter is powered by 4 alkaline batteries (1.5V AA), which are constantly monitored by the meter to ensure reliable readings. A "LO BAT" indication will appear on the display when the batteries become weak and require replacement; the instrument can perform only 50 more measurements.
ACCESSORIES HI 731313 Maintenance kit: rugged carrying case with HI93703-0 and HI93703-10 calibration solutions, HI93703-50 cleaning solution, tissue for wiping cuvettes and 2 measurement cuvettes HI 731318 Tissue for wiping cuvettes (4 pcs) HI 731321 Spare measurement cuvettes (4 pcs) HI 93703-0 Calibration solution, standard AMCO-AEPA-1 at 0 FTU, 30 mL bottle HI 93703-10 Calibration solution, standard AMCO-AEPA-1 at 10 FTU, 30 mL bottle HI 93703-5 Calibration solution, standard AMCO-AEPA-1 at
CE DECLARATION OF CONFORMITY 15
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.
