Instruction Manual C 114 Multiparameter Turbidity & Free and Total Chlorine This Instrument is in Compliance with the CE Directives www.hannainst.
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 the 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. This instrument is in compliance with tives EN 50081-1 and EN 50082-1. direc- TABLE OF CONTENTS Preliminary Examination .......................
GENERAL DESCRIPTION The Hanna C114 is a portable microprocessor driven, multiparameter instrument. The meter measures Free & Total Chlorine and Turbidity. In the colorimetric mode, the user can select either factory preprogrammed calibration settings or calibrate the meter using customized calibration values based on the concentration or relative absorbance of the sample. Calibration data is also stored in a non-volatile EEPROM.
Colorimetric Mode PRINCIPLE OF OPERATION Turbidity Mode C 114 has been designed to perform measurements according to the USEPA’s 180.1 method and the Standard Method 2130B. The instrument functions by passing a beam of light through a vial containing the sample being measured. The light source is a Pure Green LED to ensure that any interference caused by a colored samples is minimized.
A substance absorbs a color complimentary to the color it emits. For example, a substance appears yellow because it absorbs blue light. As a result, the Hanna meters use LED’s with specific wavelengths to measure samples. FUNCTIONAL DESCRIPTION The optical distance (d) is measured by the internal diameter of the cuvet containing the sample. The photoelectric cell collects the radiation I that is not absorbed by the sample and converts it into an electric current.
ent diagnostic modes, such as “-BA-” for low battery. 2) Secondary LCD: The three-digit LCD shows the current mode of measurement that is “F CL”, “t CL”, “tr”, and diagnostic or calibration modes, such as “d 11”, “2 Fn”, “5 c1”. 3) DATE: Indicates that the upper level of LCD is showing the current date, the date of last calibration or the date of logged measurement in memory.
memory. OPERATIONAL GUIDE 13) ALT key: Alternative functions. 14) Scrolls downwards through the parameters to be measured. In calibration/diagnostic mode, decreases the blinking digit by one. If pressed together with ALT while the meter is in logging mode, the upper LCD will show the current lot number. key: SPECIFICATIONS C 114 Range Turbidity Free Cl Total Cl Resolution Turbidity Free Cl Total Cl 0.00 to 50.0 NTU* 0.00 to 2.50 mg/L 0.00 to 3.50 mg/L 0.01 and 0.1 NTU* 0.01 mg/L 0.
CURRENT TIME/DATE RECALL To recall current TIME/DATE press and hold the ALT and READ keys together. The current time and an intermittent “TIME” will be displayed. Press READ. The meter will intermittently display “SIP” on the upper level of the LCD. After a few seconds the display will show the turbidity value, e.g. 5.34 NTU: + Release the keys. Press and hold the ALT and READ keys again and the meter will show the current date together with an intermittent “DATE”.
The meter will show “SIP” for a few seconds and then a zero indication: For the Free or Total Chlorine add the content of its respective packet: 1 x Replace the cap and shake the cuvet. For best results wait 2½ mins. for Total Chlorine. Insert the reacted sample into the cuvet holder and ensure that the notch on the cap is positioned securely into the groove. Press READ.
positioned securely into the groove. Press READ. CALIBRATION TURBIDITY CALIBRATION The meter should be properly calibrated with a standard prepared as described in USEPA method 180.1. The meter will first show “SIP” for a few seconds and afterwards the sample concentration: 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.
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.
After the second calibration point is memorized, the unit will store the calibration data together with time and date in the EEPROM while intermittently indicating “CAL” and “Stor” for several seconds. Subsequently, the upper display will show “----”, indicating that the meter is calibrated and ready to measure turbidity of an unknown sample. By pressing CAL during calibration, user can quit the calibration mode at any time without changing the previously stored calibration data.
Using the and keys, set the lower part of the LCD to “d 11” and then press the key. The key is used as a toggle function in this mode and allows the user to select between USER (USR) or FACTORY (FCT) programmed functions. After entering the calibration mode, the display will show the first point of the previous calibration with the most significant digit blinking. Using the , and keys, choose the concentration of the first calibration standard.
DIAGNOSTIC MODE Subsequently, the upper display will show “----”, indicating that the meter is calibrated and ready to measure the concentration of an unknown sample. By pressing the CAL key during calibration, user can leave the calibration mode at any time without changing the previously stored calibration data. C 114 facilitates operations by providing a diagnostic mode. In this mode, user can set or verify different parameters necessary to ensure optimum performance of the meter.
To quit diagnostic mode, press the ALT and CAL keys together again. + of the display to remind the user that every time a measurement is taken, the value is stored in the next available lot number. REVIEWING THE LOGGED BUFFER LOGGING WITH C 114 C 114 allows user to log 25 time/day-tagged measurements. User can easily turn the logging mode on and off, review the logged memory, review the current lot number and clean the buffer (memory). C 114 also reminds user if its memory is full.
+ To clear the buffer, press the ALT and CAL keys. Select mode 40. Press the key. The display will show the “Cln” message, indicating that memory is being cleaned. The meter will store new settings in its nonvolatile memory and the display will flash “CAL” and “Stor” alternately for several seconds. The lot number will be reset to 00 automatically. BATTERY REPLACEMENT REVIEWING THE CURRENT LOT NUMBER To check the current (vacant) lot number, while in log mode, press ALT and together.
DIAGNOSTIC CODES LOBAT Weak batteries. Change all batteries as soon as possible. -BA- Exhausted batteries. Change all batteries immediately. -LO- Low level of light is received during the zeroing procedure. Check for scratches on the cuvet and ensure that sample is not excessively turbid. Repeat the readings. If the problem persists, recalibrate the meter using deionized water in the diagnostic mode “31” (see Calibration). -CAP- Light intensity is high during last measurement.
WARRANTY CE DECLARATION OF CONFORMITY Hanna Instruments meters are guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. This warranty is limited to repair or replacement free of charge. Damages due to accidents, misuse, tampering or lack of prescribed maintenance are not covered. If service is required, contact the dealer from whom the instrument was purchased.
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