Swann Chematest 35 Operator's Manual
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Swann Chematest 35 Operator's Manual

Swann Chematest 35 Operator's Manual

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Chematest 35
Version 1.03 and higher
A-96.730.121 / 080519

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  • Page 1 Chematest 35 Version 1.03 and higher A-96.730.121 / 080519...
  • Page 2 SWAN representative, or the manufacturer: SWAN ANALYTISCHE INSTRUMENTE AG Studbachstrasse 13 8340 Hinwil Switzerland Internet: www.swan.ch E-mail: support@swan.ch Document Status Chematest 35 Operator’s Manual Title: A-96.730.121 Revision Issue May 2019 First edition © 2019, SWAN ANALYTISCHE INSTRUMENTE AG, Switzerland, all rights reserved...

  • Page 3: Table Of Contents

    Chematest 35 Table of Contents Safety Instructions ........
  • Page 4 Chematest 35 Menu Explanations ........1 Data Storage ........

  • Page 5: Safety Instructions

    Chematest 35 Safety Instructions Chematest 35 – Betriebsanleitung Safety Instructions For safe instrument operation, you must read and understand the instructions in this manual. Warning notices The symbols used for safety-related notices have the following meaning: WARNUNG Severe injuries or damage to the equipment can occur if such warnings are ignored.
  • Page 6 Chematest 35 Safety Instructions Reagents WARNUNG Health hazard For safe handling of the reagents, you must read and under- stand the corresponding Material Safety Data Sheets (MSDS). These can be downloaded from www.swan.ch. Electronics VORSICHT Observe the following instructions during operation and when charging the instrument: ...

  • Page 7: Parts And Controls

    Chematest 35 Parts and Controls Parts and Controls 2.1. Instrument Overview Sensor socket Keypad Charging socket Cuvette cap Cuvette adapter Cuvette Display A-96.730.120 / 080519...

  • Page 8: Keys

    Chematest 35 Parts and Controls 2.2. Keys POWER to power on or off the instrument ARROW UP to move up in a menu list and to increase digits ARROW DOWN to move down in a menu list and to decrease digits...

  • Page 9: Display

    Chematest 35 Parts and Controls 2.3. Display Once the instrument has started up, the main menu is displayed. The main menu is organized as follows: Main Menu Free chlorine Comb. Cl 1 cuv. pH Phenol red Method Catalogue Menu Quick start list Provides quick access to the most important methods.

  • Page 10: Initial Setup

    The user can choose between two types of method guidance:  Expert mode inactive (default setting): In this mode, the Chematest 35 guides the user step-by-step through each measurement. The user has to confirm each step before the next step is displayed.

  • Page 11: Optional: Set Up A Fixed Quick Start List

    Chematest 35 Initial Setup 3.5. Optional: Set up a fixed quick start list By default, the instrument is configured to display the last three methods selected from the method catalogue [B] in the quick start list [A]. The list is automatically adjusted every time a method is se- lected from the method catalogue.

  • Page 12: Measuring

    Chematest 35 Measuring Measuring 4.1. Photometry 4.1.1 Basic Rules for Photometric Determinations The precision and repeatability of a photometric determination de- pends greatly on the operator's technique. Please observe the fol- lowing rules: Always use clean utensils Residues from previous measurements can falsify the results. All utensils such as syringes, cuvettes or similar and the cuvette cap must be rinsed with clean water after each measurement.

  • Page 13: How To Use Reagents

    To dispense the necessary number of drops, hold the bottle at a 45° angle. Before proceeding with the measurement, make sure that the reagents are well mixed with the sample. The Chematest 35 is calibrated against Swan's OXYCON reagents. Accuracy may suffer severely, when reagents from other sources are used.

  • Page 14: Notes On Individual Methods

    Combined The method catalogue of the Chematest 35 contains two options for measuring combined chlorine: with one cuvette or with two cu- chlorine vettes. Apart from the fact that one or two cuvettes are used, the two methods are identical.

  • Page 15: Performing A Photometric Measurement

    Chematest 35 Measuring 4.1.4 Performing a Photometric Measurement WARNUNG Health hazard For safe handling of the reagents, you must read and under- stand the corresponding Material Safety Data Sheets (MSDS). These can be downloaded from www.swan.ch. Explanation of The basic procedure is largely the same for all photometric mea- surements and is briefly outlined below.
  • Page 16 Chematest 35 Measuring Example: Step 1: Zero measurement Measurement of Free chlorine Free chlorine free chlorine Fill 10 ml of sample into Place the adapter in a cuvette. Dry outer part the Chematest and and place it in the adapter.
  • Page 17 Chematest 35 Measuring Step 3: Display of the results  Pressing [Enter] saves the Free chlorine measurement in the data history  The measurement is initially 0.26 saved without ID and user. NOTICE: Pressing [Exit] <Enter> to save discards the measurement.

  • Page 18: Sensors

    Chematest 35 Measuring 4.2. Sensors A pH and a redox sensor are available as accessories for the Che- matest 35. Please observe the following recommendations to take full advantage of the sensor performance: 4.2.1 Basic Rules for pH and Redox Cover the sensor tip while the sensor is not in use After use, store the sensor in the supplied protection cap [D].

  • Page 19: Unlocking The Sensor Plug

    Chematest 35 Measuring Calibrate electrodes periodically During their lifetime, all electrodes slowly change their properties. To ensure correct measurement, calibrate your electrodes monthly. The sensors also need to be calibrated before their first use. Handling calibration standards Use the standards at room temperature. Rinse the sensors with clean water before dipping them into the standards.

  • Page 20: Automatic Shutoff

    Chematest 35 Measuring Redox Remove the protection cap from the sensor, rinse the sensor tip with clean water and dip the sensor into the sample. Move the sen- determination sor gently several times before letting it stand. The displayed redox and temperature values are updated continuously.

  • Page 21: Recalling Stored Measurements

    Chematest 35 Recalling Stored Measurements Recalling Stored Measurements Data history Previous measurements can be displayed under the menu item <Menu> / <Data Storage> / <Data History>. Scrolling  Press the ARROW DOWN and Data History through the ARROW UP keys to scroll through Date, Time 20.03.19 07:59...

  • Page 22: Maintenance

    Chematest 35 Maintenance Maintenance 6.1. Photometer Verification The verification kit contains two reference cuvettes (labeled “Low” and “High”) with certified reference absorptions of approximately 0.3 and 1.5 and an additional cuvette for zero point determination. The exact values are specified in the enclosed calibration certifi- cate.

  • Page 23: Cleaning

    Chematest 35 Maintenance 6.2. Cleaning Outside of If reagents drip onto the housing, wipe them off quickly with a soft cloth moistened with water. the housing Photometer The photometer compartment can be easily cleaned if water or re- agents have been spilled. Turn the unit to the rear, loosen the two compartment screws [A] and remove the cover [B].

  • Page 24: Calibration Of The Ph Sensor

    Chematest 35 Maintenance 6.3. Calibration of the pH Sensor To start a calibration, navigate to <Menu>/<Maintenance>/ <Calibration>/<Electrode>/<pH> and follow the instructions on the screen. Calibration The calibration is carried out using two calibration solutions. The in- strument is factory programmed for the use of calibration solutions solutions with pH 7 (standard 1) and 9 (standard 2) supplied by Swan.

  • Page 25: Setting Time And Date

    Chematest 35 Maintenance Calibration If the calibration is aborted with the message “Offset error!”: errors  Make sure that the correct standard solution has been measured. The programmed value can be viewed under <Menu>/ <Settings>/<Sensors>/<Electrode>/<Redox/ORP>/ <Standard>.  Carefully clean the sensor tip with a paper tissue.

  • Page 26: Troubleshooting

    Chematest 35 Troubleshooting Troubleshooting This chapter contains some hints to facilitate troubleshooting. For detailed information on handling and cleaning parts, see Mainte- nance, p. 20. For detailed information on programming the instru- ment, see Menu Explanations, p. 7.1. Device Errors When this symbol is displayed at the top of the screen, a device er- ror has occurred.

  • Page 27: Errors During Measurement

    Chematest 35 Troubleshooting 7.2. Errors During Measurement Measurement Error message: Operation not possible! Consult the manual. cannot be Possible cause Corrective action started  See Device Errors, p. Error E002, E003 or E004 is present Zero measure- Error message: Operation not possible! Signal out of range.
  • Page 28 Chematest 35 Troubleshooting No connection Error message: Operation not possible! Sensor not connected! Consult the manual to sensor Possible cause Corrective action  Check if the sensor is properly Sensor not connected. plugged in.  Check if the connected sensor Wrong sensor connected.

  • Page 29: Menu Explanations

    Chematest 35 Menu Explanations Menu Explanations Selecting <Menu> on the main screen displays the following sub- menus:  Menu 1 Data Storage  Menu 2 Diagnostics  Menu 3 Maintenance  Menu 4 Settings The functions and settings of each menu are explained in the fol- lowing sections.

  • Page 30: Diagnostics

    The meaning of each error message is explained in section Device Errors, p. 2.2 Identification Designation: Designation of the instrument, e.g. Chematest 35. S/N: Serial number of the instrument. Version: Installed firmware version (e.g. V1.03-04/19). Bootloader: Installed bootloader version (e.g. V.1.01).

  • Page 31: Maintenance

     Advertising: The instrument is searching for other devices.  Connected: A connection with another device has been established. Hardware address of the Chematest 35, which serves as a unique identification feature during Bluetooth communication. Fw ver Firmware version of the Bluetooth module.

  • Page 32: Settings

    Chematest 35 Menu Explanations 4 Settings 4.1 Sensors Photometer Enter the reference values of the verification cuvettes according to the enclosed calibration certificate. Range: 0.000–2.000 Electrode Filter time Used to damp noisy signals. The higher the filter time constant, the slower the system reacts to changes of the measured value.
  • Page 33 Chematest 35 Menu Explanations Electrode Conductivity (Sensor not yet available) Temp. Choose the compensation model which fits best to your application. Compensation Temp. Compensation None Coefficient Non-linear DIN  None: No temperature compensation.  Coefficient: The temperature coefficient for saline solutions is 2.00%.
  • Page 34 Chematest 35 Menu Explanations 4.3 Units Disinfectants Set the unit for disinfectants (all except ozone). Disinfectants mg/l Ozone Set the unit for ozone. Ozone µg/l mg/l Temperature Set the unit for temperature. Temperature Celsius Fahrenheit Cond. Set the unit for the concentration calculated from conductivity.
  • Page 35 Chematest 35 Menu Explanations Factory Setting The instrument can be reset to factory default values in three differ- ent ways: Set defaults Cal. + Ver. Data History Completely  Cal. + Ver.: Deletes the user calibration of all electrodes and all recorded verification measurements.
  • Page 36 Chematest 35 Menu Explanations Method save By default, the quick start list on the main screen contains the last three methods selected from the method catalogue. Alternatively, a fixed quick start list can be set up, see Initial Setup, p. 8 for details.

  • Page 37: Part Numbers

    Chematest 35 Part Numbers Part Numbers 9.1. Reagents Reagent sets Part no. Product name Methods  Free chlorine A-85.590.200 Oxycon Pool  pH (phenol red)  Free chlorine A-85.590.300 Oxycon Chlor  Total chlorine  Combined chlorine  Free chlorine A-85.590.400...

  • Page 38: Accessories

    Swansensor pH CT A-87.460.014 Swansensor Redox CT 9.3. Spare Parts and Consumables Part no. Description A-70.065.205 Carrying case for Chematest 35/42 A-70.065.634 Protection cap for sensor A-70.065.630 Cuvette adapter with cap A-70.065.631 Glass cuvettes (10-pack) A-70.065.633 Spare part set consisting of: ...
  • Page 39 Chematest 35 Part Numbers Part no. Description C-85.520.040 Cleaning wipes for cuvette (100-pack) A-70.065.600 Brush for cuvette cleaning C-88.917.200 USB charging cable C-89.511.010 Blister pack for reagent bottles A-96.730.120 / 080519...

  • Page 40: Technical Data

    Chematest 35 Technical Data Technical Data 10.1. List of Supported Methods Photometry The Chematest 35 supports the following photometric methods: Method Range Issued values Displayed Chlorine  Free chlorine 0–10 ppm Free chlorine ppm or mg/l  Total chlorine 0–10 ppm...

  • Page 41: Instrument Specifications

    Chematest 35 Technical Data Sensors The pH and redox sensors available as separate accessories mea- sure in the following ranges: Method Range Issued values Displayed  pH 1.00–13.00 pH, temperature  Redox/ORP −400–1200 mV Redox potential, temperature 10.2. Instrument Specifications...

  • Page 42: Sensor Specifications

    Chematest 35 Technical Data 10.3. Sensor Specifications 10.3.1 pH and redox Swansensor Measuring range: 1–13 Resolution 0.01 pH CT Automatic temperature compensation with integrated sensor. DIN/NIST or technical buffers. Swansensor Pt-redox electrode with integrated temperature sensor for consis- tent data records.

  • Page 43: Scope Of Supply

    Chematest 35 Technical Data 10.4. Scope of Supply Carrying case 2 sensor compartments 2 blister packs for reagent (sensors sold separately) bottles 1 sensor protection cap Storage compartment (additional protection cap containing USB charging available as an accessory) cable and 6 wipes for cuvette...

  • Page 44: Regulatory Information

    Chematest 35 Regulatory Information Regulatory Information This product contains a third party Bluetooth module, which has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. Contains FCC ID: T9JRN4020 This product meets all requirements of the relevant EU directives.

  • Page 45: Notes

    Chematest 35 Notes Notes A-96.730.120 / 080519...
  • Page 46 Chematest 35 Notes A-96.730.120 / 080519...
  • Page 47 Chematest 35 Notes A-96.730.120 / 080519...
  • Page 48 Chematest 35 SWAN is represented worldwide by subsidiary companies and distributors. cooperates with independent representatives all over the world. SWAN Products Analytical Instruments for: High Purity Water Feedwater, Steam and Condensate Potable Water Pool and Sanitary Water Cooling Water Waste Water and Effluents Made in Switzerland A-96.730.120 / 080519...

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