Instruction Manual HI 847492 Portable Haze Meter ASBC compliant w w w. h a n n a i n s t .
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. This instrument is in compliance with directives. TABLE OF CONTENTS 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. If service is required, contact the dealer from whom you purchased the instrument.
GENERAL DESCRIPTION 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.
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. The system is as easy to install as to operate.
PRINCIPLE OF OPERATION A light beam obtained from a High Emission 580 nm LED that passes through the sample is scattered in all directions. The intensity and pattern of the scattered light is affected by many variables like wavelength of the incident light, particle size, shape, refractive index and color. The light source LED with a wavelength peaking at 580 nm ensuring that the interference caused by colored samples is minimum.
SPECIFICATIONS Range Range Selection Resolution Accuracy Repeatability Stray Light Light Source Light Detector Method Display Calibration LOG Memory Serial Interface Environment Power supply Auto Shut-off Dimensions Weight 0.00 to 9.99 FTU 10.0 to 99.9 FTU 100 to 1000 FTU Automatically 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 ±2% of reading plus 0.05 FTU ±1% of reading or 0.02 FTU, whichever is greater < 0.
FUNCTIONAL DESCRIPTION INSTRUMENT DESCRIPTION 1) 2) 3) 4) Cuvet Lid. Cuvet Holder. Backlit Liquid Crystal Display (LCD). Splash proof keypad. 5) LED connector. 6) LED Holder. 7) Battery Compartment. KEYPAD DESCRIPTION 8) ON/OFF: press to switch the meter ON and OFF. 9) GLP : press to enter/exit GLP (Good Laboratory Practice) feature. In SETUP this key is used to increase the set values. In Log Recall it is used to select a new record (scroll up).
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. The DEL function is available in Log Recall mode to delete one or all records. In GLP it is used to restore factory calibration. 14) READ : press to start a 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. Keep the lid of the instrument closed when it is not used to prevent dust or dirt entering. Put always the instrument on a flat, rugged surface when taking measurements.
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; the bottom of this meniscus must be at the same level of the 10 mL mark. CALIBRATION PROCEDURE It is recommended to calibrate the meter only with Hanna ready-to-use calibration standard solutions. Alternatively, formazin standards can be used.
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. • Remove the <0.1 FTU standard cuvet and place the 15.0 FTU standard cuvet into the holder. <0.1 FTU 15.0 FTU • Close the lid and press READ .
• 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. • Remove the 100 FTU standard cuvet from the meter and insert the 800 FTU standard cuvet into the holder.
• 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: . • Enter the GLP feature by pressing GLP The date of the last calibration will be displayed on the LCD (e.g. 2007.01.23). • Press READ to scroll through the information related to calibration.
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 display. and “----” will blink on the • At the end of the measurement, the instrument directly displays haze in FTU.
CONTINUOUS MEASUREMENT This measurement mode can be used to verify how fast suspended parts settle out. Please verify first that the AVG mode is turned off (see instructions above). To make continuous measurement keep the READ key pressed until the desired number of measurements are taken. 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.
• 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. To store a new record, delete one or more records. VIEW LOGGED DATA The stored records can be viewed by pressing CAL/RCL key for a few seconds. To return to normal measurement mode, press CAL/RCL key again .
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. Note: If the ID data are missing, “----” is displayed instead. • Measurement date in YYYY.MM.DD format. • Measurement time in hh:mm format. • Delete the last record panel (only for last record). • Delete all records.
• 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. • To delete all records press SETUP/DEL when the “Delete all records” panel is displayed. • The instrument asks for confirmation.
• 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” panel. The user calibration will be deleted and the factory calibration will be restored. The instrument will switch automatically to idle mode.
SET UNIT The measure unit can be set between FTU, HELM, ASBC and EBC. • To set a new measure unit, press CAL/RCL when the unit panel is displayed. The parameter setting and “CFM” tag will start blinking. • Press the UP or DOWN keys to select the measure unit. • Press LOG/CFM to save the change. The new selected option of the parameter will be displayed on the LCD. Alternatively, press CAL to exit without saving the changes.
SHOW / HIDE THE TIME You can choose between showing or hiding the current hour and minutes on the secondary LCD. • To set hiding or showing the time, press CAL/RCL when the “Show/hide time” panel is displayed. The time show status and the CFM tag will start blinking. • Press the UP or DOWN keys to set Lcd / hide for time. • Press LOG/CFM to save the change. The new selected option will be displayed on the LCD. Alternatively, press CAL/RCL to exit without saving the changes.
• 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 . • Press LOG/CFM to save the new date. The new date will be displayed on the LCD. Alternatively, press CAL/RCL to exit without saving the changes. SET THE TIME • To set the current time, press CAL/RCL when the “Set time” panel is displayed. The time format is hh:mm.
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. • To set the instrument ID, press CAL/RCL when the “Set instrument ID” panel is displayed. The default instrument ID is 0000. The existing ID value and the CFM tag will start blinking.
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. The backlight will turn off 25 seconds after the last key is pressed.
ERROR CODES HI 847492 has a powerful diagnostic system. Common errors are detected and reported for easy diagnostic and maintenance. ERROR DESCRIPTION Err1; Err2; Err3; Err6; Err7; Err8 Critical errors. The instrument beeps and shuts down. Contact your nearest HANNA Customer Service Center Err4 The instrument beeps shortly twice and shuts down after 10 seconds. Press simultaneously UP and D OWN to reset CAP The lid is not closed. Close the lid.
ACCESSORIES HI 93703-58 HI 847492-11 HI 731331 HI 731335N HI 93703-50 HI 731318 HI 740220 HI 92000 HI 920005 HI 740027P HI 710005 HI 710006 HI 710012 HI 710013 HI 710014 Silicone oil (15 mL) Calibration cuvets kit Glass cuvets (4 pcs) Caps for cuvets (4 pcs) Cuvets cleaning solution (230 mL) Cloth for wiping cuvets (4 pcs) 25 mL glass vial with cap (2 pcs) Windows® compatible software 5 tag holders with tags 1.
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.
