1. Overview 1.1 Description of the operating elements a Display b Menu call/Enter key c Scroll key d Absorbance measure- ment key e Concentration measure- ment key f Notch for cell alignment g Round cell shaft h Storage space for anal- ysis regulations (short form) i Cover with integrated...
1. Overview 1.3 Short manual The short manual lists all of the steps necessary to determine the concentration of a sample and to activate AQA2 at a glance. 1.3.1 Measuring the concentration – To switch on the photometer, open the cover. The photometer performs a check (Self-Check) of the entire system and then switches automatically to the concentration measuring mode.
1. Overview 1.4 Selecting and calling up the menu items – To switch on the photometer, open the cover. – Press The following display appears: Example: The documentation menu item is preselected in the setup menu (z). Select a menu item, e. g. meter setup: –...
2. Safety This operating manual contains basic instructions to working with the meter. be followed in the commissioning, operation and main- The operating manual must always be available in the tenance of the meter. Consequently, all responsible vicinity of the meter. personnel must read this operating manual before 2.1 Authorized use The photometer is authorized exclusively for...
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2. Safety It is the responsibility of the operator to continuously Safe operation is no longer possible if observe the overall technical condition (externally the equipment has been damaged in transport recognizable deficits and damage as well as altera- ...
3. Commissioning The photometer operates at an environmental temper- Before putting the photometer into service, wait until it ature of +5 °C to +40 °C. During transport from cold to has adapted to the new environmental conditions warm surroundings, condensation can form resulting (see also chapter 15 T ECHNICAL in the malfunction of the meter.
4. Measuring the Concentration – Call up the concentration measuring mode by actuating Measuring mode, concentration 4.1 Display of concentration and absorption – Press to call up the setup menu – Call up the meter setup submenu. conc. / ext. –...
4. Measuring the Concentration 4.2 Measuring using cell tests – Insert the round cell with barcode into the round cell shaft until it clicks into place. Align the line mark to the notch of the photometer. The photometer reads the barcode of the round cell and automatically selects the relevant method.
4. Measuring the Concentration 4.3 Measuring using tests without barcode (manual method selection) When measuring using cell tests without barcode, the method must be selected manually. The last method set up manually appears on the display. – Select the required method with –...
5. Measuring the Absorbance/Transmission 5.1 Switching to the Absorbance/ Transmission measuring mode – Call up the setup measuring mode by actuating – In the setup menu, call up the abs./trm. % submenu Selection of the measuring mode: absorbance transmission 5.2 Measuring the absorbance or transmission –...
5. Measuring the Absorbance/Transmission 5.3 Measuring using cell tests – Insert the round cell with barcode into the round cell shaft until it clicks into place. Align the line mark to the notch of the photometer. The measured value for the wavelength displayed at the top right appears.
6. Documentation The measured values can be documented as follows: Storage in the measured value memory Output to a connected printer via the serial interface (automatic when a printer is connected) Transmission to a PC for further processing (by using the relevant software, e.g.
6. Documentation 6.1 Resetting the number of the measured value – Call up the no. of meas. value submenu. The numbering of the measured values starts again with 001 (default) Consecutive numbering of the measured values (from 001 to 999) –...
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6. Documentation Selecting "total" Select the output medium: to display to printer/PC (serial interface). – Select the menu item with – Confirm with to start the memory download. Selecting "from date" – Input the date using – Erase the input using –...
6. Documentation Memory download to printer/PC Memory download to the serial interface: Display of the transmitted no. of measured value (continuation display) beginning with the last measured value. – Cancel with Sample printout: 14541 10.02.98 11:56:33 mg/l 14541 10.02.98 11:54:21 mg/l 14729...
7. Method Parameters The following parameters can be set in the method parameters menu: citation unit – To switch on the photometer, open the cover. – Press The following display appears: – Call up the method parameters submenu. –...
7. Method Parameters 7.1 Citation form 7.1.1 Changing the citation form Example: Change the citation form from "NH -N" to "NH ". – Call up the citation submenu. The current setting: NH -N (S). – Using , scroll to NH –...
7. Method Parameters 7.1.2 Performing a difference measurement Difference measuring is possible for some methods (e.g. Iron II/III, Ca-/Mg Hardness). For more information on this, see part, "Analysis specifications". Example: Determination of iron (II) and iron (III). – Enter method 106 –...
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7. Method Parameters The 1st measured value appears on the display: Σ Fe. After approx. – Remove cell 1 2 s: – Press – Start the 2nd measurement by inserting cell 2. The 2nd measured value appears on the display: After approx.
7. Method Parameters 7.2 Selecting the unit The preset unit is "mg/l". It can be changed to "mmol/l". – Call up the unit submenu. The current setting: mg/l (S) mmol/l – Using scroll to – Confirm with mmol/l – Unit (S) is set.
8. Analytical Quality Assurance (AQA) Analytical quality assurance (AQA) can be performed The AQA mode must be activated in the photometer. in two steps: In the delivery state it is switched off. The AQA mode is activated by using a menu to select AQA1 –...
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8. Analytical Quality Assurance (AQA) – Repeat the input. If you have forgotten the password, contact the service department. After the password has been successfully input, the AQA configuration submenu appears: – Call up the AQA mode function. Default: off (no monitoring) –...
8. Analytical Quality Assurance (AQA) 8.1.2 Changing AQA intervals AQA intervals specify the interval between two AQA After an interval has expired, the following conse- quences become effective: checks. A fixed time interval (n weeks) or a number of measurements (n measurements) can be specified as Warning and loss of AQA identification the interval.
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8. Analytical Quality Assurance (AQA) AQA interval, "n measurements " The AQA interval, n measurements, is only effective if the n measurements setting is active for the AQA mode function. The AQA2 check starts the monitoring for one method at a time. The specified number of measurements applies to: ...
8. Analytical Quality Assurance (AQA) 8.1.3 Locking the system As a result, a concentration measurement is not The function system locked is effective if, for a moni- possible for this method. tored method, no AQA check was performed, the AQA check “system”...
8. Analytical Quality Assurance (AQA) 8.1.4 Changing the password When delivered, the default password is 0000. This password can be changed as follows: – Call up the change password submenu. – Confirm with – Input the required password, e.g. 0100, with –...
8. Analytical Quality Assurance (AQA) 8.2 Photometer monitoring (AQA1) 8.2.1 Entering PhotoCheck standards ® A Spectroquant PhotoCheck is required to perform the photometer monitoring (AQA1). At least 1 standard must be input. We recom- mend, however, to input all available standards. –...
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8. Analytical Quality Assurance (AQA) Example: 445-1 nm, theoretical value (absorbance) 0.200, admissible tolerance ± 0.020 – Select with – Quit via the menu item, return – Confirm with – Input the theoretical value, 445-1 – Confirm with If the standard is already stored, this value appears on the display.
8. Analytical Quality Assurance (AQA) 8.2.2 Download of PhotoCheck standards – In the PhotoCheck standards submenu, call up the output menu item. Select the output medium: to display to printer/PC (serial interface). – Select with – Confirm with to start the download.
8. Analytical Quality Assurance (AQA) 8.2.4 Performing Photometer monitoring Photometer monitoring (AQA1) includes a check of standards. – Press to call up the setup menu Light barriers using the L1/L2 cells (contained – Call up the AQA check submenu ®...
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8. Analytical Quality Assurance (AQA) After successful light barrier testing, the PhotoCheck standards (test solutions) are measured. Example: – Insert a cell with the test solution, 445-1. The photometer measures the absorbance of the test solution and compares the result with the value entered.
8. Analytical Quality Assurance (AQA) 8.3 Total system monitoring with standard solutions (AQA2) 8.3.1 Entering standards The standards compiled in the table “Spectro- ® quant CombiCheck and standard solutions” (see part "General information") are already stored method-specifically in the photometer. These values can be overwritten.
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8. Analytical Quality Assurance (AQA) Example: Method 14729 with a preset theoretical value of 15.0 mg/l and tolerance of 1.0 mg/l (CombiCheck 80). Change to: theoretical value = 8 mg/l, tolerance = 0.7 mg/l (CombiCheck 20). – Confirm with – Enter the new theoretical value, e.g. 8.0 mg/l, with Values in parentheses indicate the range in which the theoretical value should move.
8. Analytical Quality Assurance (AQA) 8.3.2 Output of standards The current list of stored standards is output via the RS 232 interface (PC/printer) or via the display. – Select the output submenu – Confirm with Select the output medium: to display ...
8. Analytical Quality Assurance (AQA) 8.3.3 Erasing standards Erasing the method-specific standard solutions leads to the change of the measured value identification from AQA2 to AQA1 (with activated AQA mode). – Call up the standard solutions submenu. – Select the menu item, erase with –...
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8. Analytical Quality Assurance (AQA) AQA check OK ..or error message After approx. 2 s: – Repeat the check If the error is repeated, perform troubleshooting of the error. See "Analytical Quality Assurance" in part "General information". The system AQA2 check must be performed separately for each method monitored.
9. Correction functions – To switch on the photometer, open the cover. – Press – In the setup menu, call up the meter setup submenu. The following display appears: – Call up the correction funct. submenu. The following display appears: Select the correction function: ...
9. Correction functions Measuring the concentration with a blank value – Press to call up the concentration measuring mode. The value measured against the prepared blank solu- tion is displayed. 9.1.1 Activating the blank value measurement – In the correction funct. menu, call up the blank value submenu.
9. Correction functions 9.1.2 Measuring the blank value – Call up the meas. blank value menu item. The menu items, erase blank value and recall blank values first appear after at least one blank value has been measured. – Insert a cell with blank solution to start a measure- ment.
9. Correction functions Each stored blank value is displayed with the date of the blank value measurement and the relevant method designation. – Select the blank value with – Erase the displayed blank value with – Select the erase menu item with –...
9. Correction functions 9.2 Turbidity correction Turbidity correction is used in sample solutions that The turbidity correct. function is not active when deliv- contain finely distributed suspended particles. The ered. suspended particles cause a light absorption. This leads to incorrect (too high) measured values. This function is not necessary, or useful, in all The function remains permanently switched on after it methods.
10. Zero adjustment Zero adjustment is necessary When performing the zero adjustment observe the following points: after changing the lamp Only use a clean, scratch-free round cell with after the error message, PhotoCheck (AQA1) distilled water. A prepared zero cell is provided with occurs your photometer.
11. Meter Setup – To switch on the photometer, open the cover. – Press – In the setup menu, call up the meter setup submenu. The following display appears: This chapter describes four functions of the meter setup menu: select language ...
11. Meter Setup 11.2 Setting the date/time – Call up the set date/time menu item. – Input the date using – Confirm with – Input the time with – Confirm with 11.3 Reset It is possible to reset the photometer to its factory All AQA functions are retained when meter setup is used.
12. Updating method data You will always find the latest method data for your To download and update the photometer method data photometer on the Internet. A method update contains via the built-in RS232 interface, you need the all new test sets and methods respectively. Additionally, following: minor modifications of already existing methods are ...
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12. Updating method data During the download, the following display appears on the photometer screen: – After the download, confirm the "Data successfully downloaded" message. The download is finished. The photometer returns to the concentration measuring mode. You can check whether the new method data are stored in the photometer.
13. RS 232 C interface Via the interface, data can be output to a printer and exchanged with a personal computer (PC) For this, the following items are available as accesso- ries: Printer cable Printer Interface cable ...
13. RS 232 C interface 13.3 Output format of measured values Notes: Character Meaning Data fields are separated by spaces. consecutive number (not required for Character set: IBM, code page 437 interface commands CMES, CEXT and CBLA) Meaning of the special characters: method designation = Measuring with blank value (concentration) or I.
14. Maintenance, cleaning, disposal 14.1 Maintenance - Changing the lamp – Connect the plug a of the new lamp – Switch off the photometer and disconnect it from the power line – Screw the lamp cover on again – Carefully turn up the photometer and park it safely –...
14. Maintenance, cleaning, disposal 14.3 Disposal Packing The measuring instrument is sent out in a protective transport packing. We recommend: Keep the packing material in case you have to send the measuring instrument back for service. The original packing prevents the measuring instrument from being damaged during transport.
15. Technical Data Weight approx. 2.3 kg (battery version: Optical Filter photometer with reference 2.8 kg) measuring beam absorption measurement; principle simultaneous recording of all Meter safety EN 61010, IEC 1010 wavelengths Safety class EN 61010-1/class 3 Light source Tungsten halogen lamp, preset Power pack FRIWO FW 7555O/15 Receiver...
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15. Technical Data Operating On/off switch actuated by Software settings when delivered elements opening/closing the lid of the cell Measured value shaft cover number: blank value is: Silicon keyboard with 4 function turbidity correct.: keys English language: Cell shaft Date of the last valid invalid (not yet measured) –...
16. What to do if… The display remains blank Connect the photometer to the line power via the power pack. when switched on In the case of battery operation: Battery empty, charging required (approx. 5h); line operation is possible without restrictions during charging time. Battery nearly empty.
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