Instruction Manual HI 931100 • HI 931101 Waterproof Instruments for Salinity and Sodium Content Measurements www.hannainst.
PRELIMINARY EXAMINATION Dear Customer, Thank you for choosing a HANNA instruments® product. Please read this instruction manual carefully before using the instrument. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any noticeable damage, immediately notify your dealer.
FUNCTIONAL DESCRIPTION HI 931100 SPECIFICATIONS HI 931100 Range 0.150 to 1.500 / 1.50 to 15.00 / 15.0 to 150.0 150 to 300 g/L NaCl 0.0 to 80.0°C Resolution 0.001 / 0.01 / 0.1 / 1 g/L NaCl 0.1°C Accuracy (@20°C) ±5% of reading (NaCl) ±0.5°C Typical EMC Deviation ±2% FS (NaCl) / ±0.5°C Calibration Automatic, 1 or 2 point at 3.00 g/L (HI 7083) and 0.30 g/L (HI 7085) or 30.0 g/L (HI 7081) Temperature Compensation 25°C (77°F) Electrode FC300B sodium electrode with BNC and 1 m (3.
FUNCTIONAL DESCRIPTION HI 931101 SPECIFICATIONS HI 931101 Range 0.00 to 3.00 pNa 15.0 to 150.0 mg/L Na 0.150 to 1.500 / 1.50 to 15.00 / 15.0 to 60.0 g/L Na 0.0 to 80.0°C Resolution Accuracy (@20°C) 0.01 pNa / 0.1 mg/L Na 0.001 / 0.01 / 0.1 / 1 g/L Na 0.1°C ±0.05 pNa ±5% of reading (Na) ±0.5°C Typical EMC Deviation ±2% FS (pNa and Na) / ±0.5°C Calibration Automatic, 1 or 2 point at 2.3 g/L (HI 7080) and 0.23 g/L (HI 7087) or 23.
For accurate readings, calibration should be performed (or verified) every day if measuring the same type of samples (e.g. cheese), or every time the sample type is changed (e.g. cheese, meat, sea water, etc.). OPERATIONAL GUIDE INITIAL PREPARATION Each meter is supplied complete with four 1.5V AA batteries. The recommended working temperature is around 20-25°C (68-77°F).
TAKING pNa MEASUREMENTS (HI 931101 only) Press the MODE key during measurement to convert the value displayed by the HI 931101 to pNa. Note that If the electrode is used rarely (once a month or less), store it dry. Before using it again, let it condition overnight in HI 7081 (30.0 g/L NaCl) or HI 7086 (23 g/L Na 1M) To avoid very long response time, do not store or rinse the electrode with deionized water. Do not rub the electrode. pNa = -log aNa where aNa is the activity of ion Na.
SINGLE POINT CALIBRATION (OFFSET) Na CALIBRATION (HI 931101) Calibration can be performed at 1 (offset only) or 2 points. • Dip the FC 300B sodium electrode into the HI 7080 (2.3 g/L Na) solution. For best accuracy, a 2 point procedure is recommended. HI • Pour small quantities of HI7080 (2.3 g/L Na) solution and HI 7087 (0.23 g/L Na) or HI 7086 (23 g/L Na) into two beakers.
• For exiting the calibration mode and save the single point calibration, press the CAL key. For better accuracy however, it is recommended to perform a 2 point calibration. Wait for a couple of minutes and then press the CFM key. CFM CAL • The two point calibration procedure is now completed and the meter automatically returns to the normal measurement mode. TWO POINT CALIBRATION • After the first point is confirmed, immerse the FC 300B electrode into the second standard solution: HI 7087 at 0.
SINGLE POINT CALIBRATION (OFFSET) • To quit the calibration and save the first point, press the CAL key. • Dip the FC 300B sodium electrode into the HI 7083 (3.00 g/L NaCl) solution. CAL For better accuracy however, it is recommended that a two-point calibration is performed. TWO POINT CALIBRATION Note: Immerse the electrode approx. 2.5 cm (1") into the solution. • • After the first point is confirmed, immerse the FC300B electrode into the second solution: HI 7085 at 0.
SPECIAL APPLICATIONS & ADDITIONAL INFORMATION HOW TO MEASURE SODIUM CHLORIDE IN CHEESE AND MEAT (HI 931100) FILTERED SOLUTION MAGNETIC STIRRER HI 190M 1. Grind a sample of cheese or meat. 2. Pour a quantity (X g) in a glass beaker. Add (X) x 10 mL of deionized water (note: ignoring water content of cheese and meat). ON POWER OFF MAX SPEED 6. Wait for the reading to stabilize, i.e. no drift should be observed for at least a couple of minutes. Note the measured value. 7.
TEMPERATURE TEMPERATURE CALIBRATION (for Technical Personnel only) The best working temperature is around 20-25°C (68-77°F). For greatest accuracy, it is recommended to calibrate the meter with standard solution at a temperature as close as possible to the temperature of the sample (± 1°C/±2°F).
• When the input value becomes stable, the " " symbol disappears and "CON" will start blinking. °C Press the CFM key to confirm the calibration value. °C • Immerse the temperature probe into the 50°C (122°F) bath. 50°C (122°F) • Press the CAL key to display the "0.0°C" and then press the BUF key to select "50.0°C". "CAL" and " "BUF" symbols. " symbol will blink for a few seconds. • When the input value becomes stable, the " " symbol disappears and "CON" will start blinking.
The sensitive bulb should not touch the bottom of the beaker. The Hanna HI 76405 electrode holder can be used for this purpose. During measurement, the sample should be gently stirred (approx. 100 rpm). The Hanna HI 190M stirrer can be used for this purpose. MAGNETIC STIRRER HI 190M POWER ON OFF MAX SPEED STORAGE When used frequently, the electrode should be stored in a solution with a Na or NaCl concentration similar to the sample to be measured.
BATTERY REPLACEMENT If the batteries become weak the LCD will display the "LOW BAT" indication. LOW BAT Battery replacement must only take place in a safe area and using the battery type specified in this instruction manual. To replace batteries, remove the two screws on the rear cover and replace all four 1.5V AA batteries with new ones, while paying attention to the correct polarity. Replace the cover and tighten the two screws. ACCESSORIES Na SOLUTIONS FOR HI 931101 HI 7080M 2.
HI 8061L HI 7073M HI 8073M HI 7073L HI 8073L HI HI HI HI 7074M 7074L 7077M 8077M HI 7077L HI 8077L HI 8093 General cleaning solution, 500 mL FDA bottle Protein cleaning solution, 230 mL bottle Protein cleaning solution, 230 mL FDA bottle Protein cleaning solution, 500 mL bottle Protein cleaning solution, 500 mL FDA bottle Inorganic cleaning solution, 230 mL bottle Inorganic cleaning solution, 500 mL bottle Oil & Fat cleaning solution, 230 mL bottle Oil & Fat cleaning solution, 230 mL FDA bottle Oil & Fat
CE DECLARATION OF CONFORMITY Recommendations for Users Before using these products, make sure that they are entirely suitable for the environment in which they are used. Operation of these instruments in residential area could cause unacceptable interferences to radio and TV equipments, requiring the operator to take all necessary steps to correct interferences. Any variation introduced by the user to the supplied equipment may degrade the instruments' EMC performance.
SALES & 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.
