User manual HANNA INSTRUMENTS HI 93102

[. . . ] Instruction Manual HI 93102 Multiparameter Turbidity & Ion Specific Meter www. hannainst. com Dear Customer, Thank you for choosing a Hanna Product. Please read this instruction manual carefully before using the instrument. This manual will provide you with the necessary information for correct use of the instrument, as well as a precise idea of its versatility. If you need more technical information, do not hesitate to e-mail us at tech@hannainst. com. [. . . ] Add the content of one packet of HI 93746 TPTZ reagent, close the cylinder and agitate for 30 seconds. This is the blank. 12 9 Add the content of one packet of HI 93746 TPTZ reagent, close the cylinder and agitate for 30 seconds. 30" 3 6 12 9 30" 3 6 Fill a cuvet with 10 mL of the blank up to 1. 5 cm (¾") below the rim and replace the cap. 1. 5 cm Fill a cuvet with 10 mL of the reacted sample up to 1. 5 cm (¾") below the rim and replace the cap. This is the sample. 1. 5 cm Insert the blank into the cuvet holder and make sure that the notch on the cap is positioned securely into the groove. Press ZERO. Insert the reacted sample into the cuvet holder and make sure that the notch on the cap is positioned securely into the groove. Wait 30" and then press READ. The meter will show "SIP" for a few seconds and then a zero indication: The meter will show "SIP" for about a few seconds and then the concentration: Fill one graduated mixing cylinder up to the 25 mL mark with the sample. Note: To review the relative absorbance of the sample, wait until the concentration measurement is completed, and then press GLP/Abs. The display will show the absorbance in milliunits to19 18 gether with the "Ab" indicator, e. g. : 533 Ab = 533 milliabs. units Press ALT and CAL until four dashes are displayed on the upper display and "# fn" are shown in the lower part of the LCD. Note: Absorbance readings may have a negative sign if the transmittance of the "ZERO" sample is less then that of the reacted sample. Note: For better accuracy wash glassware with HCl 6N. Measurements in user-customized mode Note: The meter must be calibrated for this purpose. Follow the two-point customized calibration on page 26 before proceeding. Turn the meter on and by momentarily pressing both ALT and CAL. Using the and keys select the number from 0 to 7 where the appropriate calibration data have been stored. Add the appropriate reagent into the blank sample cuvet. Shake and allow a few seconds for color to develop. + The LCD will show four dashes on the upper and "d 00" on the lower part of the LCD with the second "0" flashing: Using the , and keys change the lower row of the display to show "d 11": Press the key. This key is also used as a toggle between USER (USR) and FACTORY (FCT) programmed functions. Select the USER mode (if necessary by pressing the key more than once): Insert the reacted sample into the cuvet holder and make sure that the notch on the cap is positioned securely into the groove. Press READ. The meter will first show "SIP" for a few seconds and afterwards the sample concentration: 20 21 CALIBRATION TURBIDITY CALIBRATION The meter should be properly calibrated with a standard prepared as described in USEPA method 180. 1. Span calibration To calibrate the span of the meter, fill the cuvet with the primary turbidity formazine standard of 50 NTU. Inspect and clean thoroughly the surface of the vial. Shake the standard vigorously for a few seconds and wait a few minutes for the bubbles to disappear. Turn the meter on and press both ALT and CAL momentarily. The display will blink "-Lt-" for several seconds, indicating that the LED is being adjusted for the turbidimetric channel. Afterwards, a sequence of numbers between -511 to 512 will appear on the upper part of the LCD indicating different levels of LED light intensity. In approximately one minute, the adjustment will be made and the calibration data stored in the non-volatile memory. The display will show four dashes again indicating the end of the span calibration procedure. Press the ALT and CAL keys together again to leave the diagnostic mode. + + The LCD will show four dashes on the upper and "d 00" on the lower part of the LCD with the second "0" blinking. [. . . ] If under warranty, report the model number, date of purchase, serial number and the nature of the failure. First obtain a Returned Goods Authorization number from the Customer Service department and then return the instrument indicating the Authorization # with shipment costs prepaid. If the repair is not covered by the warranty, you will be notified of the charges. When shipping any instrument, make sure it is properly packaged for complete protection. All rights are reserved. [. . . ]