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Summary of Contents for Hanna Instruments HI 847492
- Page 1 Instruction Manual HI 847492 Portable Haze Meter ASBC compliant w w w. h a n n a i n s t . c o m...
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Page 2: Table Of Contents
Dear Customer, Thank you for choosing a Hanna Instruments product. This manual will provide you with the necessary information for correct use of the instrument. 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 or see the back side of this manual for our worldwide sales and technical service contacts. -
Page 3: Warranty
WARRANTY HI 847492 is warranted for two years against defects in workmanship and materials when used for its intended purpose and maintained according to instructions. This warranty is limited to repair or replacement free of charge. Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered. -
Page 4: General Description
The HI 847492 is an auto diagnostic microprocessor meter that benefits from Hanna’s years of experience as manufacturer of analytical instruments. The HI 847492 is a ASBC (American Society of Brewing Chemists) compliant haze meter that is part of the new HI 84749x series, especially designed for haze measurements. The other models included are: HI 847491 ISO compliant haze meter and HI 847493 MEBAK compliant haze meter. -
Page 5: Abbreviations
TAG IDENTIFICATION SYSTEM Hanna is the first manufacturer of turbidity instruments that has added the unique T.I.S. - Tag Identification System to portable turbidity meters, to meet the more restrictive needs for traceability and data management of our clients. The system is designed for scientific and industrial applications, as well as for safety audits and inspections to show that measurements have been taken on pre-established locations. -
Page 6: Principle Of Operation
The optical system of HI 847492 haze meter is designed to have very low stray light, providing accurate results also for low haze samples. However, special care must be taken when measuring low haze samples (see General Tips for an Accurate Measurement, page 10). -
Page 7: Specifications
SPECIFICATIONS Range 0.00 to 9.99 FTU 10.0 to 99.9 FTU 100 to 1000 FTU Range Selection Automatically Resolution 0.01 FTU from 0.00 to 9.99 FTU 0.1 FTU from 10.0 to 99.9 FTU 1 FTU from 100 to 1000 FTU Accuracy ±2% of reading plus 0.05 FTU Repeatability ±1% of reading or 0.02 FTU, whichever is greater... -
Page 8: Functional Description
FUNCTIONAL DESCRIPTION INSTRUMENT DESCRIPTION 1) Cuvet Lid. 5) LED connector. 2) Cuvet Holder. 6) LED Holder. 3) Backlit Liquid Crystal Display (LCD). 7) Battery Compartment. 4) Splash proof keypad. KEYPAD DESCRIPTION 8) ON/OFF: press to switch the meter ON and OFF. 9) GLP : press to enter/exit GLP (Good Laboratory Practice) feature. - Page 9 11) CAL/RCL: this is a bi-functional key. Just press to enter/exit calibration or in setup mode to start/stop editing a parameter. Hold the key for 3 seconds to enter/exit viewing log content. 12) LOG/CFM: press to save a record or to confirm the selected option. 13) SETUP/DEL: press to enter/exit setup.
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Page 10: General Tips For An Accurate Measurement
GENERAL TIPS FOR AN ACCURATE MEASUREMENT The instructions listed below should be carefully followed to ensure best accuracy. GENERAL TIPS • Always cap the cuvets to avoid spillage of the sample into the instrument. • Always close the lid of the instrument during measurement. •... -
Page 11: Calibration Procedure
thermometer will be used to read the beer temperature. • When the beer temperature is 0°C (32°F) place the cuvet in the meter and imediately start the reading. MEASUREMENT TIPS • For a correct filling of the cuvet: the liquid in the cuvet forms a meniscus;... - Page 12 Alternatively, press LOG/CFM to skip the first calibration point. • Then the LCD will show the second calibration point (15.0 FTU) and “CAL P.2”, while “READ” is blinking. Note: If you’re using different calibration standards, change the displayed value by pressing UP or DOWN keys until the display shows the desired value.
- Page 13 • At the end of the reading, the fourth calibration point (800 FTU) and “CAL P.4” is displayed. If desired, the value can be changed using the UP or DOWN keys. Note: At this moment it is possible to exit calibration by pressing CAL/RCL. The instrument will memorize the three-point (<0.1, 15.0 and 100 FTU) calibration data and will return to measurement mode.
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Page 14: Haze Measurement
• If the calculated calibration coefficients are off specifications, the “CAL Err” message is displayed. DELETE CALIBRATION HI 847492 is factory calibrated. It is possible to restore factory calibration by deleting last performed calibration. To delete last calibration, follow the next steps: •... - Page 15 necessary, apply HI 93703-58 Silicone Oil (see General Tips for an accurate measurements, page 10), recommended only if low haze values need to be read. • Place the cuvet into the instrument and close the lid. • Press READ and “----” will blink on the display.
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Page 16: Logging
The last value remains on the display after the READ key is released. LOGGING HI 847492 has a log space for up to 200 records. With each measurement, the date, time and tag ID is stored. In this way, each record is fully characterized and can be easily analyzed when downloading data on the PC application (HI 92000). - Page 17 • If less than ten free records are available, the “LOG” tag will blink while storing data. • If the log memory is full, the “LoG FULL” message will appear for a few seconds on the LCD and the instrument will return to measurement mode without storing the new record.
- Page 18 Each record contains the following panels: • The record value (haze value) and record number. Note: If the logged sample value is an over range reading, the maximum value (1000 FTU) will be displayed blinking. • The hexadecimal string of the tag for the sampling location ID.
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Page 19: Good Laboratory Practice (Glp)
• After the record is deleted, the instrument goes immediately to the first panel of the previous record. If the log becomes empty, “----” will be displayed for one second and the instrument will return to measurement mode. DELETE ALL RECORDS To delete all records, scroll through the log until delete all records panel is displayed. -
Page 20: Setup
• First calibration point: 0.00 FTU if skipped or the actual read value (e.g. 0.01 FTU). • Second calibration point. • Third calibration point (if available). • Fourth calibration point (if available). • Delete calibration panel. To delete calibration: • Press SETUP/DEL when the instruments displays the “Delete calibration”... - Page 21 Alternatively, press CAL to exit without saving the changes. SET BEEPER The HI 847492 has a built-in beeper that signals the tag read, the key press and the error conditions. The beeper can be selected to be on or off.
- Page 22 Alternatively, press CAL/RCL to exit without saving the changes. SET THE DATE The HI 847492 haze meter has a built-in real time clock (RTC). The RTC time is used to generate a unique time stamp for each recorded value and to automatically store the last calibration date.
- Page 23 • Press LOG/CFM or READ to start editing the day value. The day value will start blinking. • Press the UP or DOWN keys to set the day value. Note: to edit the year again, after the day was set, press READ . •...
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Page 24: Lcd Backlight
SET INSTRUMENT ID The instrument ID is a four digit number that can be edited by the user. The instrument ID is downloaded on the PC application, together with the logged data. By setting a different ID for each instrument it is possible to combine information from many turbidimeters into the same database. -
Page 25: Battery Management
BATTERY MANAGEMENT For field measurements, HI 847492 is powered by 4 AA batteries. The battery life is enough for 3500 normal measurements. When you turn the instrument on, the remaining estimated battery life reported in percents. To save the battery life, the instrument will turn off after 15 minutes of non-use. -
Page 26: Error Codes
ERROR CODES HI 847492 has a powerful diagnostic system. Common errors are detected and reported for easy diagnostic and maintenance. c a t t s e r ; 1 r ; 2 r ; 3 r i t i r... -
Page 27: Accessories
To avoid damages or burns, do not put the instrument in microwave ovens. For yours and the instrument safety do not use or store the instrument in hazardous environments. Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. - Page 28 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.
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