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Related Manuals for Swann Chematest 35
Summary of Contents for Swann Chematest 35
- Page 1 Chematest 35 Version 2.02 and higher A-96.730.121 / 160920...
- 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 Title: Chematest 35 Operator’s Manual A-96.730.121 Revision Issue May 2019 First edition May 2020 Added CT App September 2020 Added conductivity sensor ©...
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Page 3: Table Of Contents
Data Management ........8.1. Display of Data History on the Chematest 35....8.2. - Page 4 Chematest 35 Maintenance ........
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Page 5: Safety Instructions
Chematest 35 Safety Instructions Chematest 35–Operator’s Manual 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: WARNING Severe injuries or damage to the equipment can occur if such warnings are ignored. - Page 6 Do not expose the instrument to direct sunlight or other sources of heat, especially when charging. The housing of the Chematest 35 must not be opened except for the housing parts specified in the maintenance chapter. The battery must only be replaced by authorized service personnel.
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Page 7: Product Description
Chematest 35 Product Description Product Description 2.1. Instrument Overview Sensor socket Keypad Charging socket Cuvette cap Cuvette adapter Cuvette Display A-96.730.121 / 160920... -
Page 8: Keys
Chematest 35 Product Description 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 Product Description 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 Favorites list The favorites list provides quick access to frequently used methods. -
Page 10: Ct App
Chematest 35 Product Description 2.4. CT App The CT App is a software for communication between the Chemat- est 35 and a mobile device or PC. The app includes the following functions: Transfer of the stored measurements and export to a CSV or Excel file ... -
Page 11: Initial Setup
Selecting the Language Select the applicable language from <Menu>/<Settings>/ <Miscellaneous>/<Language>. If the required language is not available on the Chematest 35, the CT App can be used to install a different language pack. See Language packs, p. 57 for details. -
Page 12: Activating Expert Mode
Inactive (default setting): In this mode, the Chematest 35 displays detailed on-screen instructions. Recommended for inexperienced users. Active: In this mode, the Chematest 35 displays the instructions in shortened form and requires as few confirmations from the user as possible. 3.5. -
Page 13: Further Settings
Chematest 35 Initial Setup 3.6. Further Settings Detailed descriptions of all instrument settings can be found in chapter Menu explanation, subsection 4 Settings, p. 3.7. Sensor Calibration Before first use, calibrate your pH and redox sensors. See Calibration of the pH Sensor, p. 29 Calibration of the Redox Sensor, p. -
Page 14: Photometry
Chematest 35 Photometry Photometry 4.1. Basic Rules for Photometric Measurements The precision and repeatability of a photometric determination depends greatly on the operator's technique. Please observe the following rules: Always use clean utensils Residues from previous measurements can falsify the results. The cuvette cap and all utensils such as syringes or cuvettes must be rinsed with clean water after each measurement. -
Page 15: 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 if reagents from other sources are used. -
Page 16: Notes On Individual Methods
70 mg/l Percentage of free chlorine in the mea- sured value Combined The method catalogue of the Chematest 35 contains two options for measuring combined chlorine: chlorine with one cuvette or with two cuvettes. Apart from the fact that one or two cuvettes are used, the two meth- ods are identical. -
Page 17: Performing A Photometric Measurement
Material Safety Data Sheets (MSDS). These can be downloaded from www.swan.ch. General A photometric measurement with the Chematest 35 consists of the following steps: Step 1: Zero measurement Step 2: Addition of reagents and subsequent measurement... - Page 18 Chematest 35 Photometry 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 19 Chematest 35 Photometry Step 3: Display and storage of the measured 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.
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Page 20: Automatic Shutoff
Chematest 35 Photometry 4.5. Automatic Shutoff When the instrument is waiting for a user input (e.g. when the mea- surement result is displayed) and no key is pressed for 10 minutes, the instrument shuts off automatically to save power. This affects the storage of measurement results in the same way as pressing the [Exit] key. -
Page 21: Ph And Redox
Chematest 35 pH and Redox pH and Redox 5.1. Basic Rules for pH and Redox Calibration To ensure correct measurement, calibrate pH and redox sensors monthly. The calibration procedure is described in Calibration of pH interval and Redox Sensors, p. -
Page 22: Performing A Ph Measurement
Chematest 35 pH and Redox 5.2. Performing a pH Measurement 1 Plug the sensor cable into the sensor socket. 2 Remove the protection cap from the sensor. 3 Rinse the sensor tip with clean water and dip the sensor into the sample. -
Page 23: Automatic Shutoff
With difficult samples, it may take 15–20 minutes until the reading is stable. With a freshly calibrated sensor, it may take even longer. If the Chematest 35 switches off before the measured value has stabilized, switch it on again and select the <Redox/ORP>... -
Page 24: Conductivity
6.1. Basic Rules for Conductivity Calibration and The conductivity sensor of the Chematest 35 is already calibrated at the factory and the cell constant is stored in the sensor. Since the verification conductivity sensor does not change its properties significantly over time, a periodic recalibration is usually not necessary. -
Page 25: Performing A Conductivity Measurement
Chematest 35 Conductivity 6.2. Performing a Conductivity Measurement 1 Plug the sensor cable into the sensor socket. 2 Rinse the sensor tip with clean water. 3 Immerse the sensor at least four times in the sample until the vent holes [A] are below the water surface and lift it up again to allow the sample to flow out. -
Page 26: Automatic Shutoff
Chematest 35 Conductivity 6.3. Automatic Shutoff When the instrument is waiting for a user input (e.g. when the mea- surement result is displayed) and no key is pressed for 10 minutes, the instrument shuts off automatically to save power. This affects the storage of measurement results in the same way as pressing the [Exit] key. -
Page 27: Additional Parameters
Additional Parameters Additional Parameters 7.1. Determination of Acid Binding Capacity ACD pH 4.3 Required Use the following utensils from the Chematest 35 carrying case: utensils cuvette cuvette adapter syringe Procedure 1 Place the cuvette in the cuvette adapter. -
Page 28: Data Management
Data Management Up to 2700 measurements are memorized. Then the oldest mea- surement is deleted to save the newest one. 8.1. Display of Data History on the Chematest 35 Previous measurements can be displayed under <Menu>/ <Data Storage>/<Data History>. Scrolling ... -
Page 29: Maintenance
Chematest 35 Maintenance Maintenance 9.1. Photometer Verification Overview 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 certificate. -
Page 30: Cleaning The Instrument
Chematest 35 Maintenance 9.2. Cleaning the Instrument 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]. Use a soft, lint-free cloth moistened with water to clean the photometer compartment. -
Page 31: Calibration Of Ph And Redox Sensors
History The calibration history of the pH sensor is stored in the internal memory of the Chematest 35 and can be reviewed in <Menu>/ <Data Storage>/<Calibration History>/<Sensors>/<pH>. Up to 64 calibrations are memorized. Then the oldest calibration is deleted to save the newest one. -
Page 32: Calibration Of The Redox Sensor
History The calibration history of the redox sensor is stored in the internal memory of the Chematest 35 and can be reviewed in <Menu>/ <Data Storage>/<Calibration History>/<Sensors>/<Redox/ORP>. Up to 64 calibrations are memorized. Then the oldest calibration is deleted to save the newest one. -
Page 33: Calibration Of The Conductivity Sensor
Chematest 35 Maintenance 9.4. Calibration of the Conductivity Sensor Calibration The calibration is carried out using a 0.01 mol KCl solution. solution Use the calibration solution at a temperature between 18 °C and 30 °C and allow it to reach room temperature before use. -
Page 34: Verification Of The Conductivity Sensor
Chematest 35 Maintenance 9.5. Verification of the Conductivity Sensor Calibration The 0.01 mol KCl calibration solution can also be used for a verifi- cation measurement. solution Use the calibration solution at a temperature between 21 °C and 30 °C and allow it to reach room temperature before use. -
Page 35: Cleaning The Conductivity Sensor
Chematest 35 Maintenance 9.6. Cleaning the Conductivity Sensor To clean the conductivity sensor, proceed as follows: 1 Unscrew the protection sleeve [C]. Sensor shaft Sensing tip Protection sleeve 2 Clean the sensing tip [B] and the inner side of the protection sleeve [C] with a soft brush and a household detergent. -
Page 36: 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. 27. For detailed information on programming the instru- ment, see Menu Explanations, p. 10.1. Instrument Errors When this symbol is displayed at the top of the screen, the instru- ment has an error. -
Page 37: Photometric Measurements
Chematest 35 Troubleshooting 10.2. Photometric Measurements Measurement Error message “Operation not possible! Consult the manual.” is displayed cannot be started Possible cause Corrective action See Instrument Errors, p. 34 Error E002, E003 or E004 details. is present Zero measure- Error message “Operation not possible! Signal out of range. - Page 38 Chematest 35 Troubleshooting Measurement Error message “Operation not possible! Signal out of range. Consult the manual.” is displayed. after adding reagents fails Possible cause Corrective action Make sure that the cuvette cap is Extraneous light properly closed. Clean and rinse the cuvette.
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Page 39: Sensor-Based Measurements
Chematest 35 Troubleshooting 10.3. Sensor-Based Measurements Measurement Error message “Operation not possible! Consult the manual.” is displayed cannot be started Possible cause Corrective action See Instrument Errors, p. 34 Error E002, E003 or E004 details. is present Sensor not Error message “Operation not possible! Sensor not connected! - Page 40 Chematest 35 Troubleshooting Sensor failure Error message “Operation not possible! Sensor failure! Consult the manual.” is displayed. Possible cause Corrective action Call support. Cable or sensor defective Do not unplug the sensor until The sensor was the measurement has been...
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Page 41: Menu Explanations
Chematest 35 Menu Explanations Menu Explanations Selecting <Menu> on the main screen displays the following submenus: 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 42: Diagnostics
The meaning of each error message is explained in section Instru- ment Errors, p. 2.2 Identification Designation: Designation of the instrument, e.g. Chematest 35. S/N: Serial number of the instrument. Hardware: Hardware version of the Chematest 35. Firmware: Installed firmware version. -
Page 43: Maintenance
Advertising: The instrument is waiting for a connection request from another device. 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. Firmware Firmware version of the Bluetooth module. -
Page 44: Settings
Chematest 35 Menu Explanations 3.4 Set Time Adjust date and time. 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 45 Chematest 35 Menu Explanations Standard Enter the mV value of the redox/ORP standard. Range: 200–900 mV Electrode Conductivity Temp. Choose the compensation model which fits best to your application. Compensation Temp. Compensation None Coefficient Non-linear DIN None: No temperature compensation.
- Page 46 Spanish Chinese, English Asia-1* * Requires hardware V2.0 or higher. If the required language is not available on the Chematest 35, the CT App can be used to install a different language pack. See Language packs, p. 57 for details.
- Page 47 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 the pH and/or redox sensor and the verification history.
- Page 48 Chematest 35 Menu Explanations 4.5 Bluetooth Bluetooth Activates the Bluetooth connection to connect to the CT App. Bluetooth Active Inactive A-96.730.121 / 160920...
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Page 49: Part Numbers
Chematest 35 Part Numbers Part Numbers Download The current Material Safety Data Sheets (MSDS) for the reagents listed below are available for downloading at www.swan.ch. MSDS 12.1. Reagents Reagent sets Part no. Product name Allows measurement of Free chlorine A-85.590.200... -
Page 50: Accessories
A-87.460.014 Swansensor Redox CT A-87.391.014 Swansensor Shurecon CT 12.3. 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 51 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-96.730.121 / 160920...
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Page 52: Technical Data
Chematest 35 Technical Data Technical Data 13.1. Instrument Specifications Housing IP67 rated Power supply Rechargeable lithium-ion battery. Only charge the instrument using a standard type A USB socket and the supplied USB cable. Protect from heat and splash water during charging (not IP67). -
Page 53: List Of Photometric Methods
Chematest 35 Technical Data 13.2. List of Photometric Methods Method Range Issued values Chlorine Free chlorine 0–10 ppm Free chlorine Total chlorine 0–10 ppm Total chlorine Combined chlorine 0–10 ppm Free chlorine (fac), using one cuvette total chlorine (tc), combined chlorine (cc) ... -
Page 54: Sensor Specifications
Chematest 35 Technical Data 13.3. Sensor Specifications 13.3.1 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 55: Conductivity
Chematest 35 Technical Data 13.3.2 Conductivity Swansensor Digital four-electrode sensor with Pt electrodes Insensitive to polarization effects Shurecon CT Measuring ranges/ 0.00–9.99 µS/cm resolution: 10.0–99.9 µS/cm 100–999 µS/cm 1.00–9.99 mS/cm 10.0–29.9 mS/cm 30–100 mS/cm Accuracy: ±(0.2 µS/cm ±1.5% of reading) Temperature range: 0–50 °C... -
Page 56: Scope Of Supply
Chematest 35 Technical Data 13.4. 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 accessory) cable and 6 wipes for cuvette... -
Page 57: Appendix: Ct App
Microsoft Edge version 80 or higher Operating system: Windows 10, Android 7.0 or macOS Bluetooth 4.0 interface On the Chematest 35, the following firmware versions must be installed: Chematest firmware V1.03 or higher Bootloader V1.01 or higher... - Page 58 Chematest 35 CT App main screen Extract records Transfers the measurement history of the Chematest 35 to the CT App and exports it to a CSV or Excel file. Edit users Allows to modify the user list of the Chematest 35.
- Page 59 Chematest 35 Language The menu languages of the Chematest 35 are organized in lan- guage packs that can be installed by the user via the CT App. packs A language pack contains up to 5 languages. One language pack can be installed at a time.
- Page 60 Chematest 35 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 61 Chematest 35 A-96.730.121 / 160920...
- Page 62 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-96.730.121 / 160920...