wtw PhotoLab S12-A Operating Instructions Manual
  1. Manuals
  2. Brands
  3. wtw Manuals
  4. Measuring Instruments
  5. PhotoLab S12-A
  6. Operating instructions manual

wtw PhotoLab S12-A Operating Instructions Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Operating Instructions
Part 1:
General Information
Part 2:
Functional Description
12

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the PhotoLab S12-A and is the answer not in the manual?

Questions and answers

Related Manuals for wtw PhotoLab S12-A

Summary of Contents for wtw PhotoLab S12-A

  • Page 1 Operating Instructions Part 1: General Information Part 2: Functional Description...

  • Page 3: Table Of Contents

    photoLab ® Series Contents 1 Photometers ........Photometry .

  • Page 4: Photometers

    photoLab ® Series 1 Photometers 1.1 Photometry When a beam of light is transmitted through a coloured solution, then this beam loses its intensity, in other words a part of the light is absorbed by the solution. Depending on the substance in question, this absorption occurs at specific wave lengths.

  • Page 5: The Photometers

    photoLab ® Series 1 Photometers 1.2 The Photometers The photometers that belong to the Spectroquant ® Analysis System differ from con ven tional photo meters in the following important aspects: • The calibration functions of all test kits are electronically stored. •...

  • Page 6: Spectroquant Cell Tests

    photoLab ® Series 2 Photometric Test Kits ® 2.1.1 Spectroquant Cell Tests Identification mark for the correct insertion into the cell Leakproof cap compartment of the photo- 14690 meter CSB/COD Bar code for identification in the photometer Cat. No. of test kit Giftig Quecksilber(II)-sulfat, Toxic...

  • Page 7: Notes For Practical Use

    photoLab ® Series 2 Photometric Test Kits 2.2 Notes for Practicle Use 2.2.1 Measuring range The intensity of the colour of a solution, measured as the absorbance, is proportional to the concentration of the respective analyte only within a specific range. This mea sur ing range (effective range) is electro nically stored in the photometers for each in di vidual test kit .
  • Page 8 photoLab ® Series 2 Photometric Test Kits In some cases the intensity of the colour of the solution and thus the ab- sorbance can drop again when very high concentrations of the analyte are present. The examples are listed in the following table. The values indi- cated in the display are cor rect up to the concentrations specified in the third column, and false measuring values are ob tained above these con- centrations.

  • Page 9: Influence Of Ph

    photoLab ® Series 2 Photometric Test Kits 2.2.2 Influence of pH Chemical reactions follow an optimal course only within a certain pH range. The rea gents contained in the test kits produce an adequate buf- fering of the sample sol u tions and ensure that the pH optimal for the reac- tion in question is obtained.

  • Page 10: Influence Of Foreign Substances

    photoLab ® Series 2 Photometric Test Kits 2.2.5 Influence of Foreign Substances Foreign substances in the sample solution can • raise the measurement value as a result of an amplification of the reaction • ower the measurement value as a result of a prevention of the reaction. A quantification of this effects is stated in tabular form in the respective package inserts for the most important foreign ions.

  • Page 11: Shelf-Life Of The Reagents

    photoLab ® Series 2 Photometric TestKits 2.2.7 Shelf-life of the Reagents The Spectroquant ® test kits are in most cases stable for 3 years when stored in a cool, dry place. A few test kits have a lower shelf-life of 18 or 24 months or must else be stored in a refrigerator.

  • Page 12: Preliminary Tests

    photoLab ® Series 3 Sample Preparation 3.2 Preliminary Tests Correct measurement results can be obtained only within the measuring range spe ci fied for each indi vi dual parameter. When dealing with sample solutions of an un known concentration, it is advisable to establish whether the sample concentration is indeed within the specified measuring range, ideally roughly in the middle of the range.

  • Page 13: Filtration

    photoLab ® Series 3 Sample Preparation All dilutions should be made in such a way that the measurement value lies in the middle of the measur ing range. As a rule, the dilution factor should never be higher than 100. In the event that yet higher dilu tions become necessary all the same, then this must be done in two separate steps.

  • Page 14: Homogenization

    photoLab ® Series 3 Sample Preparation Procedure for microfiltration Draw out the liquid Screw the syringe Hold the syringe Filter the contents to be filtered with tightly into the front upright and slowly of the syringe into the syringe. side of the mem - depress the piston the intended glass brane-filter attach-...
  • Page 15 photoLab ® Series 3 Sample Preparation The manner in which the sample is pretreated en ables the three pro- portions to be dis tinguished from each other. This can be illustrated using a copper-containing waste water sample as an example. Example Filtration Decomposition...

  • Page 16: Pipetting System

    photoLab ® Series 3 Sample Preparation In the event that the sample to be analyzed is a highly contaminated ma- terial (high proportion of organic substances) or water-insoluble samples, decomposition using concentrated acids and other agents is in dispensible. Corresponding examples from the collection of applications for real samples are available on request.

  • Page 17: Analytical Quality Assurance (Aqa)

    photoLab ® Series 5 Analytical Quality Assurance (AQA) The objective of analysis must always be to determine the true content of the analyte in question as accurately and precisely as possible. Analytical Quality Assurance represents a suitable and indispensible method by which the quality of the user's own work can be assessed, errors in the measurement system diagnosed, and the comparability with the results obtained using the respec tive refe rence methods demonstrated.

  • Page 18: Quality Control For The User

    photoLab ® Series 5 Analytical Quality Assurance (AQA) The certificate for the test kit, available for each lot produced, docu- ments the quality of the reagents contained in the test kit. Calibration function: The calculated function must agree, within specified tolerances, with the function electronically stored in the photometer.

  • Page 19: Checking The Photometer

    photoLab ® Series 5 Analytical Quality Assurance (AQA) 5.2.1 Checking the Photometer As soon as the photometer is activated it is running a Self-Check. This means the hardware and the soft ware of the photometer is checked and compared with internal standards. As soon as the photometer is activated it is running a Self-Check.

  • Page 20: Checking The Pipettes

    photoLab ® Series 5 Analytical Quality Assurance (AQA) Due to li mited shelf-life characteristics, there are no CombiCheck or rea- dy-to-use standard solutions for certain parameters. Appendix 3 is a com- pilation of standard working procedures necessary to make your own solutions of a defined concentration.

  • Page 21: Testing For Handling Errors

    photoLab ® Series 5 Analytical Quality Assurance (AQA) 5.2.5 Testing for Handling Errors The user’s own mode of operation must also be subjected to an exact analysis. The following questions may serve as a guide in this regard: • Is the test kit optimal for the measurement assignment in question? •...

  • Page 22: Definition Of Errors

    photoLab ® Series 5 Analytical Quality Assurance (AQA) 5.4 Definition of Errors It is obvious that measurement results as a rule may be associated with errors. This applies equally to standardized methods of analysis (reference methods) and to rou tine analysis. The discovery and the minimization of errors must be the objective here.
  • Page 23 Functional description Edition 03/2004 · Order no. ba41108d05...
  • Page 24 General instructions Notes on this operating manual To ensure that you become rapidly acquainted with your photometer, the first chapter contains an overview and a short manual of the meter. The second chapter contains notes for the safe operation of the photometer.
  • Page 25 Contents 1. Overview ......Description of the operating elements ..5 Identifying the connectors .
  • Page 26 Contents 8.1.1 Activating AQA using the AQA MemoChip ....28 8.1.2 Activating AQA via the menu guide . . .28 8.1.3 Changing AQA intervals ... .30 8.1.4 Locking the system .
  • Page 27 Contents 15.5 Pin assignment ......66 16. Maintenance ....16.1 Changing the lamp .
  • Page 28 Contents...

  • Page 29: Overview

    1. Overview 1.1 Description of the operating elements a Display b Menu call/Enter key c Scroll key d Recess for MemoChip e Absorbance measure- ment key f Concentration measure- ment key g Notch for cell alignment h Round cell shaft i Storage space for anal- ysis regulations (short form)

  • Page 30: Short Manual

    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.

  • Page 31: Selecting And Calling Up The Menu Items

    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: –...

  • Page 32: Safety

    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...

  • Page 33: Commissioning

    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 17 T ECHNICAL in the malfunction of the meter.

  • Page 34: Measuring The Concentration

    4. Measuring the Concentration – Call up the concentration measuring mode by actuating Measuring mode, concentration 4.1 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.

  • Page 35: Measuring Using Reagent Tests

    4. Measuring the Concentration 4.2 Measuring using reagent tests – Insert the AutoSelector into the round cell shaft. Align the line mark to the notch of the photometer. The photometer reads the barcode and automatically selects the relevant method. – Insert the rectangular cell (vertically, to the right of the slot).

  • Page 36: Measuring Using Tests Without Barcode (Manual Method Selection)

    4. Measuring the Concentration 4.3 Measuring using tests without barcode (manual method selection) When measuring using cell tests without barcode or reagent tests without AutoSelector, the method must be selected manually. The sequence of operations also applies to user- defined methods. The last method set up manually appears on the display.

  • Page 37: Measuring The Absorbance/Transmission

    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 –...

  • Page 38: Measuring Using Cell Tests

    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.

  • Page 39: Measuring Using Reagent Tests

    5. Measuring the Absorbance/Transmission 5.4 Measuring using reagent tests – Insert the AutoSelector in the round cell shaft and the rectangular cell in the rectangular cell shaft. Align the line mark to the notch of the photometer. The measured value for the wavelength displayed at the top right appears.

  • Page 40: Documentation

    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. Multi/ACHATII or – less conveniently –...

  • Page 41: Resetting The Number Of The Measured Value

    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) –...

  • Page 42: Download Memory

    6. Documentation Measuring using the activated "ID number" function – Call up the concentration measuring mode – Insert and align the round cell, or – Insert the AutoSelector and rectangular cell. The following display appears: – Enter the required ID number Default: The ID number that was last entered (initially, there are underscores).
  • Page 43 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 via the numeric keypad – Erase the input using –...
  • Page 44 6. Documentation Selecting "with I. D. no." – Enter the ID number Default: The last ID number entered is preselected. – Confirm each time with Select the output medium: to display to printer/PC (serial interface). – Select the menu item with –...

  • Page 45: Download Of The Methods List

    6. Documentation Memory download to display Each data record appears individually on the display beginning with the data record just measured. The display shows: no. of meas. value citation date/time meas. value I. D. number unit method designation Where necessary, AQA ID, e.g.

  • Page 46: Method Parameters

    7. Method Parameters The following parameters can be set in the method parameters menu: citation unit dilution – To switch on the photometer, open the cover. – Press The following display appears: – Call up the method parameters submenu. – Input the method number –...

  • Page 47: Citation Form

    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 –...

  • Page 48: Performing A Difference Measurement

    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 –...
  • Page 49 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.

  • Page 50: Selecting The Unit

    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.

  • Page 51: Entering The Dilution

    7. Method Parameters 7.3 Entering the dilution Diluting a sample with distilled water enables the measuring range to be extended. The photometer automatically includes any dilution factor entered when calculating the measured value. Values from 0 to 99 can be entered as dilution factors. Example: Enter dilution 1:20 (i.e.

  • Page 52: Analytical Quality Assurance (Aqa)

    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: AQA1 – Photometer monitoring by inserting the AQA MemoChip AQA2 –...
  • Page 53 8. Analytical Quality Assurance (AQA) A password request appears: A separate password protects settings of the AQA- configuration against unauthorized access (Changing the password see section 8.1.5). – Input the password: Only numeric characters are allowed. Default: 0000 – Confirm with If the input was incorrect: –...

  • Page 54: Changing Aqa Intervals

    8. Analytical Quality Assurance (AQA) 8.1.3 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.
  • Page 55 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: the instrument with AQA1 (total number of measure- ments performed, independent of whether AQA2 is...

  • Page 56: Locking The System

    8. Analytical Quality Assurance (AQA) 8.1.4 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” has expired. –...

  • Page 57: Changing The Password

    8. Analytical Quality Assurance (AQA) 8.1.5 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, via the numeric keypad –...

  • Page 58: Photometer Monitoring (Aqa1)

    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. –...
  • Page 59 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.

  • Page 60: Download Of Photocheck Standards

    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. Example: Report output AQA check meter AQA1...

  • Page 61: Performing Photometer Monitoring

    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 ® within the scope of delivery of the Spectroquant –...
  • Page 62 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.

  • Page 63: Total System Monitoring With Standard Solutions (Aqa2)

    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.
  • Page 64 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, via the numeric keypad.

  • Page 65: Output Of Standards

    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 to printer/PC (serial interface).

  • Page 66: Erasing Standards

    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 –...
  • Page 67 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.

  • Page 68: Kinetics

    9. Kinetics The kinetics function enables the tracking of time- dependent changes in concentration or absorbance (for one selected wavelength) by repeating measurements over an adjustable time interval (setting possibility 00:05 to 60:00 min, smallest interval 5 seconds). The kinetic measured values are stored in the memory in the same way as the measured values from single measurements (older measured values are over- written).

  • Page 69: Correction Functions

    10. 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: blank value reference absorbance...

  • Page 70: Activating The Blank Value Measurement

    10. 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. 10.1.1 Activating the blank value measurement – In the correction funct. menu, call up the blank value submenu.

  • Page 71: Measuring The Blank Value

    10. Correction functions 10.1.2 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.

  • Page 72: Recalling Blank Values

    10. Correction functions – Select the erase blank value menu item – After confirming with the erase blank value menu opens. The erase blank value menu item first appears after a blank value has been measured. Select between Erase all stored blank values single Erase individual stored blank value Each stored blank value is displayed with the...

  • Page 73: Reference Absorbance

    10. Correction functions 10.2 Reference absorbance Each absorbance measurement is made against the The measured reference absorbance value remains basic absorbance stored in the meter. When activating stored until the reference absorbance, this value is ignored and the photometer is switched off the value measured as the reference absorbance is the method is changed used instead.
  • Page 74 10. Correction functions The measured value for the wavelength displayed at After approx. the top right appears. 2 s: – If necessary, change the wavelength by pressing key. The measured value for the selected wavelength appears. The measured reference absorbance remains valid for all consecutive measurements with the same wavelength.

  • Page 75: Turbidity Correction

    10. Correction functions 10.3 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.

  • Page 76: Zero Adjustment

    11. Zero adjustment Zero adjustment is necessary after changing the lamp after the error message, PhotoCheck (AQA1) occurs on initial commissioning if the photometer was mechanically stressed, e.g. percussion, transport if the ambient temperature changed by more than 5 °C since the last zero adjustment at least every six months.
  • Page 77 11. Zero adjustment Only perform the zero adjustment against distilled water in an optically perfect cell. – Press – In the setup menu, call up the meter setup submenu. The following display appears: – Call up the zero adjustment submenu with –...

  • Page 78: User-Defined Methods

    12. User-defined methods User-defined methods are stored under code numbers. Numbers from 301 to 399 are allowed. These code numbers are used to fast-find user- defined methods when setting methods. A total of 50 user-defined methods can be stored. The 51st user-defined method causes the method error message to appear;...

  • Page 79: Entering Characteristics Via The Keyboard

    12. User-defined methods 12.1 Entering characteristics via the keyboard – Select the input charact. submenu with – Input the method number (301 to 399) via the numeric keypad – Confirm with Confirming without character input results in a blank. – Input the method designation, e.g. TEST1: –...
  • Page 80 12. User-defined methods – Input the unit with – Confirm each time with Selecting the resolution defines the numeric display of the beginning and end of the measuring range. Possible selections: 0.001 0.01 – Select the resolution using – Confirm with –...

  • Page 81: Entering Characteristics Via The Pc

    12. User-defined methods round 10 mm 20 mm 50 mm – Select with – Confirm with Example: Display and automatic printout of code no. and charac- teristics as a list. – Scroll with – Return with 12.2 Entering characteristics via the PC Data format of the method data: Error message "INVALID COMMAND"...

  • Page 82: Printing Characteristics

    12. User-defined methods 12.3 Printing characteristics – Call up the print charact. submenu with – Start the print with The characteristics of all user-defined methods are printed sequentially as a list. – Cancel with Example: Report printout < date > <...
  • Page 83 12. User-defined methods Select the required menu item: Erase all user-defined methods single Selectively erase individual methods – Confirm with Selecting "all" – Call up the erase menu item with – Confirm with The message methods are erased ... appears Selecting "single"...

  • Page 84: Meter Setup

    13. 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 set date/time Performing a meter reset system info...

  • Page 85: Setting The Date/Time

    13. Meter Setup 13.2 Setting the date/time – Call up the set date/time menu item. – Input the date via the numeric keypad – Confirm with – Input the time via the numeric keypad – Confirm with 13.3 Reset It is possible to reset the photometer to its factory All AQA functions are retained when meter setup is used.

  • Page 86: System Info

    13. Meter Setup 13.4 System info – Call up the system info menu item. Sample display...

  • Page 87: Updating Method Data

    14. 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 transferred with it.
  • Page 88 14. 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.

  • Page 89: Rs 232 C Interface

    15. 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 Communication software. 15.1 Principle course of the remote control String to meter Reply from meter Operating mode...

  • Page 90: Output Format Of Measured Values

    15. RS 232 C interface 15.3 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.

  • Page 91: Maintenance

    16. Maintenance 16.1 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 –...

  • Page 92: Technical Data

    17. Technical Data Self-Check Test: Memory, optics, electronic Optical Filter photometer with reference measured value recording, measuring beam absorption measurement; barcode recognition, cell recogni- principle simultaneous recording of all tion wavelengths Automatic calibration: Optics, electronic measured value Light source Tungsten halogen lamp, preset recording, barcode recognition, Receiver 12 x photo diode array...
  • Page 93 17. Technical Data EU directive 89/336/EEC EN 61326-1 FCC Class A EN 61000-3-2 A14 Equipment Statement EN 61000-3-3 Note: This equipment has been tested and found FCC class A to comply with the limits for a Class A digital Climatic class 2, VDI/VDE 3540 device, pursuant to Part 15 of the FCC Rules.
  • Page 94 17. Technical Data Software settings when delivered ID number input: Measured value number: blank value is: Reference absorbance: Off turbidity correct.: English language: Kinetic interval: Date of the last valid invalid (not yet measured) AQA1 check: AQA1 interval: 12 weeks AQA2 interval: 4 weeks AQA password:...

  • Page 95: What To Do If

    18. 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.
  • Page 98 Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1 D-82362 Weilheim Germany Tel: +49 (0) 881 183-0 +49 (0) 881 183-100 Fax: +49 (0) 881 183-420 E-Mail: Info@WTW.com Internet: http://www.WTW.com...

This manual is also suitable for:

Photolab s12

Table of Contents