TruLab ph/ise 1320(P)

Transcription

1 OPERATIONS MANUAL ba76161e01 08/2015 ph/ise 1320P ph/ise 1320P ph/ise 1320 ph/ise 1320 TruLab ph/ise 1320(P) PH/ISE METER

2 TruLab ph/ise 1320 For the most recent version of the manual, please visit Contact Copyright YSI 1725 Brannum Lane Yellow Springs, OH USA Tel: Internet: Xylem Inc. 2 ba76161e01 08/2015

3 TruLab ph/ise 1320 Contents TruLab ph/ise Contents 1 Overview TruLab ph/ise 1320 meter TruLab ph/ise 1320P meter Sensors Safety Safety information Safety information in the operating manual Safety signs on the meter Further documents providing safety information Safe operation Authorized use Requirements for safe operation Unauthorized use Commissioning Scope of delivery Power supply Initial commissioning Inserting the batteries Connecting the power pack Mounting the stand Printer (only TruLab ph/ise 1320 P) Commissioning / switching the printer on or off Operation / printing Printer settings Maintenance Changing the roll of paper (thermal paper) What to do if... / printer Operation General operating principles Keypad Display Status information (meter) Socket field Switching on the meter Switching off Navigation Operating modes Measured value display Menus and dialogs ba76161e01 08/2015 3

4 Contents TruLab ph/ise Elements in menus and dialogs Example 1 on navigation: Setting the language Example 2 on navigation: Setting the date and time Channel display Display of several sensors in the measuring mode 27 6 ph value Measuring Measuring the ph value Measuring the temperature Calibration Why calibrate? When do you have to calibrate? Automatic calibration (AutoCal) Manual calibration (ConCal) Calibration points Calibration data Continuous measurement control (CMC function) ORP voltage Measuring Measuring the ORP Measuring the relative ORP Measuring the temperature ORP calibration Ion concentration Measuring Measuring the ion concentration Measuring the temperature Calibration Why calibrate? When to calibrate? Calibration (ISE Cal) Calibration standards Calibration data Selecting the measuring method Standard addition Standard subtraction Sample addition Sample subtraction Standard addition with blank value correction (Blank value addition) Settings Measurement settings Settings for ph measurements Buffer sets for calibration Calibration interval Settings for ORP measurements Settings for ISE measurements ba76161e01 08/2015

5 TruLab ph/ise 1320 Contents 9.3 Sensor-independent settings System Data storage Reset Resetting the measurement settings Resetting the system settings Data storage Manual data storage Automatic data storage at intervals Measurement data storage Editing the measurement data storage Erasing the measurement data storage Measurement dataset Storage locations Transmitting data (USB interface) Options for data transmission Connecting a PC MultiLab Importer Maintenance, cleaning, disposal Maintenance General maintenance activities Replacing the batteries Cleaning Packing Disposal What to do if ph/orp ISE General information Technical data Measuring ranges, resolution, accuracy ph/orp ISE General data Firmware update Glossary Index Contact Information Ordering & Technical Support Service Information ba76161e01 08/2015 5

6 Contents TruLab ph/ise ba76161e01 08/2015

7 ph 1320 TruLab ph/ise 1320 Overview 1 Overview 1.1 TruLab ph/ise 1320 meter The compact precision ph meter TruLab ph/ise 1320 enables you to carry out ph measurements, ORP measurements and ion selective measurements quickly and reliably. The TruLab ph/ise 1320 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications. The USB interface can be used for data transmission to a PC and for software updates of the meter Keypad 2 Display 3 Socket field ba76161e01 08/2015 7

8 Overview TruLab ph/ise TruLab ph/ise 1320P meter The integrated printer of the TruLab ph/ise 1320 P enables to document measurements according to GLP requirements. The information concerning the printer of the TruLab ph/ise 1320 P is given in a separate chapter (see section 4 PRINTER (ONLY TRULAB PH/ISE 1320 P), page 14) ph 1320P 1 1 Keypad 2 Display 3 Socket field 4 Printer 5 Control panel of the printer 1.3 Sensors A measuring system ready to measure consists of the TruLab ph/ise 1320 meter and a suitable sensor. Suitable sensors are ph electrodes, ORP electrodes and ion selective electrodes (ISE). 8 ba76161e01 08/2015

9 TruLab ph/ise 1320 Safety 2 Safety 2.1 Safety information Safety information in the operating manual This operating manual provides important information on the safe operation of the meter. Read this operating manual thoroughly and make yourself familiar with the meter before putting it into operation or working with it. The operating manual must be kept in the vicinity of the meter so you can always find the information you need. Important safety instructions are highlighted in this operating manual. They are indicated by the warning symbol (triangle) in the left column. The signal word (e.g. "Caution") indicates the level of danger: WARNING indicates a possibly dangerous situation that can lead to serious (irreversible) injury or death if the safety instruction is not followed. CAUTION indicates a possibly dangerous situation that can lead to slight (reversible) injury if the safety instruction is not followed. NOTE indicates a possibly dangerous situation where goods might be damaged if the actions mentioned are not taken Safety signs on the meter Note all labels, information signs and safety symbols on the meter and in the battery compartment. A warning symbol (triangle) without text refers to safety information in this operating manual Further documents providing safety information The following documents provide additional information, which you should observe for your safety when working with the measuring system: Operating manuals of sensors and other accessories Safety datasheets of calibration or maintenance accessories (such as buffer solutions, electrolyte solutions, etc.) ba76161e01 08/2015 9

10 Safety TruLab ph/ise Safe operation Authorized use This meter is authorized exclusively for ph, ORP and ISE concentrations measurements in the laboratory. Only the operation and running of the meter according to the instructions and technical specifications given in this operating manual is authorized (see section 14 TECHNICAL DATA, page 94). Any other use is considered unauthorized Requirements for safe operation Note the following points for safe operation: The meter may only be operated according to the authorized use specified above. The meter may only be supplied with power by the energy sources mentioned in this operating manual. The meter may only be operated under the environmental conditions mentioned in this operating manual. The meter may only be opened if this is explicitly described in this operating manual (example: Inserting the batteries) Unauthorized use The meter must not be put into operation if: it is visibly damaged (e.g. after being transported) it was stored under adverse conditions for a lengthy period of time (storing conditions, see section 14 TECHNICAL DATA, page 94). 10 ba76161e01 08/2015

11 TruLab ph/ise 1320 Commissioning 3 Commissioning 3.1 Scope of delivery ph meter TruLab ph/ise batteries 1.5 V Mignon type AA Power pack USB cable (A plug on mini B plug) Stand Stand holder Comprehensive operating manual Short instructions CD-ROM with USB drivers detailed operating manual Software MultiLab Importer 3.2 Power supply The TruLab ph/ise 1320 is supplied with power in the following ways: Mains operation with the supplied power pack Battery operation (4 x alkaline manganese batteries, type AA) USB operation via a connected USB-B cable 3.3 Initial commissioning Perform the following activities: Insert the supplied batteries For mains operation: Connect the power pack If necessary, mount a stand Switch on the meter (see section 5.2 SWITCHING ON THE METER, page 19) Set the date and time (see section EXAMPLE 2 ON NAVIGATION: SETTING THE DATE AND TIME, page 25) ba76161e01 08/

12 Commissioning TruLab ph/ise Inserting the batteries You can operate the meter either with normal batteries or with rechargeable batteries (Ni-MH). In order to charge the batteries, an external charging device is required. 1 1 Battery compartment 1. Open the battery compartment (1) on the underside of the meter. CAUTION Make sure that the poles of the batteries are positioned correctly. The ± signs on the batteries must correspond to the ± signs in the battery compartment. 2. Place four batteries (type Mignon AA) in the battery compartment. 3. Close the battery compartment (1). 4. Set the date and time (see section EXAMPLE 2 ON NAVIGATION: SETTING THE DATE AND TIME, page 25). 12 ba76161e01 08/2015

13 TruLab ph/ise 1320 Commissioning Connecting the power pack CAUTION The line voltage at the operating site must lie within the input voltage range of the original power pack (see section 14 TECH- NICAL DATA, page 94). CAUTION Use original power packs only (see section 14 TECHNICAL DATA, page 94). 1. Connect the plug of the power pack to the socket for the power pack on the TruLab ph/ise Connect the original power pack to an easily accessible power outlet Mounting the stand The stand base can be mounted at the right side of the meter. 2 1 ba76161e01 08/

14 Printer (only TruLab ph/ise 1320 P) TruLab ph/ise Printer (only TruLab ph/ise 1320 P) Operating LED Is illuminated: Printer is switched on Flashes: Printer is switched off 2 Control panel with the keys <FEED> and <ON/OFF> 3 Lever to open the paper compartment 4 Lid of the paper compartment 4.1 Commissioning / switching the printer on or off Switching on the printer 1. Connect the power pack to the TruLab ph/ise 1320 P. The LED lights up green. The printer is ready for operation. or When the printer had been switched off (LED flashing): Switch on the printer with <ON/OFF>. The LED lights up green. The printer is ready for operation. If there is a USB-B connection at the same time (e.g. to a PC), the data are output to the PC only. Switching off the printer 1. Switch off the printer with <ON/OFF>. The LED flashes. The printer is switched off. 14 ba76161e01 08/2015

15 TruLab ph/ise 1320 Printer (only TruLab ph/ise 1320 P) 4.2 Operation / printing Data are only output to the printer if the following requirements are met Data are transmitted manually or automatically (see section 11.1 OPTIONS FOR DATA TRANSMISSION, page 85) The printer is switched on (LED illuminated) There is no USB connection. 4.3 Printer settings To open the Storage & config menu, press the <ENTER_> key in the measured value display. After completing the settings, switch to the measured value display with <M>. Default settings are printed in bold. Menu item System / Printer / Font size System / Printer / Print test page Possible setting 12x20 8x16 7x16 Description Select the font size for the printer A print sample (font of the printer) to view the available font sizes can be output with <ON/OFF_>. - The printer prints the meter information from the menu, System / Service information. The current printer settings are used for the printout. 4.4 Maintenance Changing the roll of paper (thermal paper) 1. Pull the lever (3) until the lid (4) of the paper compartment opens. 2. If necessary, remove any remains of the old roll of paper. 3. Insert the new roll of paper. The start of the paper should poke out of the paper compartment. 4. Close the lid (4) of the paper compartment so that it clicks into place. 5. If necessary, move the printer paper forward with <FEED>. ba76161e01 08/

16 Printer (only TruLab ph/ise 1320 P) TruLab ph/ise What to do if... / printer Integrated printer does not print Cause Printer switched off (LED flashing) Remedy Switch on the printer (LED illuminated) No power pack connected Connect the power pack USB cable connected Disconnect the USB cable from the meter Function "store automatically at intervals" with long intervals is switched on Switch off the function (see section 10.2 AUTOMATIC DATA STORAGE AT INTERVALS, page 80) No paper available Insert a roll of paper Printer operating - paper not being printed Cause Remedy Paper inserted the wrong way up Turn the roll of paper around and insert it with the other side upwards Integrated printer prints automatically Cause The function "store automatically at intervals" or "transmit data automatically at intervals" is switched on Remedy Switch off the functions (see section 10.2 AUTOMATIC DATA STORAGE AT INTERVALS, page 80 or section 11.1 OPTIONS FOR DATA TRANSMISSION, page 85) 16 ba76161e01 08/2015

17 TruLab ph/ise 1320 Operation 5 Operation 5.1 General operating principles Keypad In this operating manual, keys are indicated by brackets <..>. The key symbol (e.g. <ENTER>) generally indicates a short keystroke (under 2 sec) in this operating manual. A long keystroke (approx. 2 sec) is indicated by the underscore behind the key symbol (e.g. <ENTER >). F1 F2 <F1>: <F1 >: <F2>: <F2 >: <On/Off>: <M>: Softkeys providing situation dependent functions, e.g.: <F2>/[USB output]: Outputs data to the USB interface <F2 >/[USB output]: Configures the automatic data output to the USB interface Switches the meter on or off Selects the measured parameter / Quits the settings STO RCL AR <CAL>: <CAL >: <STO>: <STO >: <RCL>: <RCL >: < >< >: < >< >: <ENTER>: <ENTER >: <AR> Calls up the calibration procedure Displays the calibration data Saves a measured value manually Opens the menu for the automatic save function Displays the manually stored measured values Displays the automatically stored measured values Menu control, navigation Increments, decrements values Increments, decrements values continuously Opens the menu for measurement settings / confirms entries Opens the menu for system settings Freezes the measured value (HOLD function) Switches the AutoRead measurement on or off ba76161e01 08/

18 Operation TruLab ph/ise Display 3 ph 2 1 AutoCal YSI HOLD AR C USB output Status information (sensor) 2 Measured value (with unit) 3 Measured parameter 4 Continuous measurement control (CMC function) 5 Channel display: Plug position of the sensor 6 Sensor symbol (calibration evaluation, calibration interval) 7 Measured temperature (with unit) 8 Status information (meter) 9 Softkeys and date + time Status information (meter) AR HOLD Stability control (AutoRead) is active Measured value is frozen (<AR> key) Batteries are almost empty 18 ba76161e01 08/2015

19 TruLab ph/ise 1320 Operation Socket field 1 ph electrode or ion selective electrode 1 2 Reference electrode 1 3 Temperature sensor 1 4 ph electrode or ion selective electrode 2 5 Reference electrode 2 6 Temperature sensor 2 7 Mini USB-B interface 8 Power pack 9 Service interface CAUTION Only connect sensors to the meter that cannot return any voltages or currents that are not allowed (> SELV and > current circuit with current limiting). Almost all customary sensors fulfill these conditions. 5.2 Switching on the meter 1. Switch the meter on with <On/Off>. The meter performs a self-test. The display shows the manufacturer's logo while the self-test is being performed. The measured value display appears. ba76161e01 08/

20 Operation TruLab ph/ise 1320 ph C USB output 5.3 Switching off 1. Switch the meter off with <On/Off>. Automatic switch-off The instrument has an automatic switch-off function in order to save the batteries (see section SYSTEM, page 76). The automatic switchoff switches off the measuring instrument if no key is pressed for an adjustable period. The automatic switchoff is not active if the communication cable is connected if the Automatic data storage function is active, or with automatic data transmission if the power pack is connected Display illumination The meter automatically switches off the display illumination if no key is pressed for 30 seconds. The illumination is switched on with the next keystroke again. You can also generally switch the display illumination on or off (see section SYSTEM, page 76). 5.4 Navigation The principles of navigation in menus and dialogs are explained in the following sections Operating modes The meter has the following operating modes: 20 ba76161e01 08/2015

21 TruLab ph/ise 1320 Operation Operating mode Measuring Calibration Storage in memory Transmitting data Setting Description The measurement data of the connected sensor are shown in the measured value display The course of a calibration with calibration information, functions and settings is displayed The meter stores measuring data automatically or manually The meter transmits measuring data and calibration records to a USB-B interface automatically or manually The system menu or a sensor menu with submenus, settings and functions is displayed Only those displays and functions are available in the active operating mode that are currently being required Measured value display In the measured value display, open the setting menus with <MENU/ENTER>. The current functions of the softkeys are shown on the display. Use <MENU/ENTER> (short pressure) to open the menu for calibration and measurement settings for the displayed measured parameter. Use <MENU/ENTER > (long keystroke (approx. 2 s) to open the Storage & config menu with the sensor-independent settings. Use the keys of the keypad to carry out further functions such as storage or calibration (see section KEYPAD, page 17). These functions are not available in other operating situations Menus and dialogs The menus for settings and dialogs in procedures contain further submenus. To select a subelement, use the < >< > keys. The current selection is displayed with a frame. To make further settings, switch to the next higher menu level with <F1>[Back]. Use <M> to return to the measured value display Elements in menus and dialogs Submenus The name of the submenu is displayed at the upper edge of the frame. Submenus are opened by confirming with <MENU/ENTER>. Example: ba76161e01 08/

22 Operation TruLab ph/ise 1320 System General Interface Clock Service information Reset Back Settings Settings are indicated by a colon. The current setting is displayed on the right-hand side. The setting mode is opened with <MENU/ENTER>. Subsequently, the setting can be changed with < >< > and <MENU/ENTER>. Example: General Language: Deutsch Beep: Off Illumination: On Contrast: 50 % Switchoff time: 1 h Temperature unit: C Stability control: On Back Functions Functions are designated by the name of the function. They are immediately carried out by confirming with <MENU/ENTER>. Example: Display the Calibration record function. ph Calibration record Calibration data storage Serial number (sensor) Buffer: One point calibration: Calibration interval: Unit for slope: [i] (25 C) Back YSI Yes 7 d mv/ph Messages Information is marked by the i symbol. They cannot be selected. Example: 22 ba76161e01 08/2015

23 TruLab ph/ise 1320 Operation ph Calibration record Calibration data storage Serial number (sensor) Buffer: One point calibration: Calibration interval: Unit for slope: [i] (25 C) Back YSI Yes 7 d mv/ph Example 1 on navigation: Setting the language 1. Press the <On/Off> key. The measured value display appears. The instrument is in the measuring mode. ph C USB output 2. Using <MENU/ENTER >, open the Storage & config menu. The instrument is in the setting mode. Storage & config System Data storage Back 3. Select the System submenu with < >< >. The current selection is displayed with a frame. 4. Open the System submenu with <MENU/ENTER>. ba76161e01 08/

24 Operation TruLab ph/ise 1320 System General Interface Clock Service information Reset Back 5. Select the General submenu with < >< >. The current selection is displayed with a frame. 6. Open the General submenu with <MENU/ENTER>. General Language: Deutsch Beep: Off Illumination: On Contrast: 50 % Switchoff time: 1 h Temperature unit: C Stability control: On Back 7. Open the setting mode for the Language with <MENU/ ENTER>. General Language: Deutsch Beep: Off Illumination: On Contrast: 50 % Switchoff time: 1 h Temperature unit: C Stability control: On Back 8. Select the required language with < >< >. 9. Confirm the setting with <MENU/ENTER>. The meter switches to the measuring mode. The selected language is active. 24 ba76161e01 08/2015

25 TruLab ph/ise 1320 Operation Example 2 on navigation: Setting the date and time The measuring instrument has a clock with a date function. The date and time are shown in the measured value display. When storing measured values and calibrating, the current date and time are automatically stored as well. The correct setting of the date and time and date format is important for the following functions and displays: Current date and time Calibration date Identification of stored measured values. Therefore, check the time at regular intervals. After a fall of the supply voltage (empty batteries), the date and time are reset. The date format can be switched from the display of day, month, year (dd.mm.yyyy) to the display of month, day, year (mm/dd/yyyy or mm.dd.yyyy). 1. In the measured value display: Using <MENU/ENTER >, open the Storage & config menu. The instrument is in the setting mode. 2. Select and confirm the System / Clock menu with < >< > and <MENU/ENTER>. The setting menu for the date and time opens up. 3. Select and confirm the Time menu with < >< > and <MENU/ ENTER>. The hours are highlighted. Clock Date format: dd.mm.yyyy Date: Time: :25 Back 4. Change and confirm the setting with < >< > and <MENU/ENTER>. The minutes are highlighted. 5. Change and confirm the setting with < >< > and <MENU/ENTER>. The seconds are highlighted. 6. Change and confirm the setting with < >< > and <MENU/ENTER>. The time is set. ba76161e01 08/

26 Operation TruLab ph/ise If necessary, set the Date and Date format. The setting is made similarly to that of the time. 8. To make further settings, switch to the next higher menu level with [Back]<F1>. or Switch to the measured value display with <M>. The instrument is in the measuring mode. 26 ba76161e01 08/2015

27 TruLab ph/ise 1320 Operation 5.5 Channel display The TruLab ph/ise 1320 manages the connected sensors and displays which sensor is plugged to which connection. ph C Channel display Display of the plug position for the respective parameter. The filled bar indicates for each connected sensor to which plug position of the meter it is connected. USB output Display of several sensors in the measuring mode The measured values of the connected sensors can be displayed in the following ways: Clear display of all connected sensors Detailed display of one sensor (e.g. incl. CMC feature with ph sensors) With the softkey you can very easily switch between the two display types. The suitable softkey is displayed depending on the operating situation. ph C USB output USB output ba76161e01 08/

28 ph value TruLab ph/ise ph value 6.1 Measuring Measuring the ph value NOTE When connecting an earthed PC/printer, measurements cannot be performed in earthed media as the values would be incorrect. The USB interface is not galvanically isolated. To ensure the high measurement accuracy of the measuring system, always measure with a calibrated electrode (see section 6.2 CALIBRATION, page 31). 1. Connect the ph electrode to the meter. 2. If necessary, select the measured parameter with <M>. 3. When measuring without temperature sensor: Temper the test sample or measure the current temperature and enter it with < > < >. 4. Immerse the ph electrode in the test sample. The measured value is checked for stability (automatic stability control). The display of the measured parameter flashes. 5. Wait for a stable measured value. The display of the measured parameter no longer flashes. ph C USB output Stability control (AutoRead) & HOLD function The stability control function (AutoRead) continually checks the stability of the measurement signal. The stability has a considerable impact on the reproducibility of measured values. The measured parameter flashes on the display as soon as the measured value is outside the stability range when the automatic Stability control is switched off. You can activate or switch off the automatic Stability control function (see section SYSTEM, page 76). 28 ba76161e01 08/2015

29 TruLab ph/ise 1320 ph value 1. Freeze the measured value with <AR>. The [HOLD] status indicator is displayed. The HOLD function is active. You can terminate the Stability control function and the HOLD function with <AR> or <M> at any time. 2. Using <ENTER>, activate the Stability control function manually. The [AR] status indicator appears while the measured value is assessed as not stable. A progress bar is displayed and the display of the measured parameter flashes. The [HOLD][AR] status indicator appears as soon as a stable measured value is recognized. The progress bar disappears and the display of the measured parameter stops flashing. The current measurement data is output to the interface. Measurement data meeting the stability control criterion is marked by AR. You can prematurely terminate the Stability control function manually with <ENTER> at any time. If the Stability control function is prematurely terminated, the current measurement data are output to the interface without the AutoRead info. 3. Using <ENTER>, start a further measurement with stability control. or Release the frozen measured value again with <AR> or <M>. The [AR] status display disappears. The display switches back to the previous indication. Criteria for a stable measured value The Stability control function checks whether the measured values are stable within the monitored time interval. Measured parameter Time interval Stability in the time interval ph value 15 seconds : better than 0.01 ph Temperature 15 seconds : better than 0.5 C The minimum duration until a measured value is assessed as stable is the monitored time interval. The actual duration is mostly longer. ba76161e01 08/

30 ph value TruLab ph/ise Measuring the temperature For reproducible ph measurements, it is essential to measure the temperature of the test sample. You have the following options to measure the temperature: Automatic measurement of the temperature with the temperature sensor (NTC 30 or Pt 1000) integrated in the sensor. Measurement by an external temperature sensor. Manual determination and input of the temperature. The measuring instrument recognizes whether a suitable sensor is connected and automatically switches on the temperature measurement. The display of the temperature indicates the active temperature measuring mode: Temperatur e sensor Resolution of the temp. display Temp. measurement yes 0.1 C Automatic with temperature sensor - 1 C Manual If you wish to measure (or calibrate) without temperature sensor, proceed as follows: 1. Measure the current temperature of the test sample. 2. In the <MENU/ENTER>/pH/Man. temperature menu, set the temperature value with < >< >. 30 ba76161e01 08/2015

31 TruLab ph/ise 1320 ph value 6.2 Calibration Why calibrate? ph electrodes age. This changes the zero point (asymmetry) and slope of the ph electrode. As a result, an inexact measured value is displayed. Calibration determines and stores the current values of the zero point and slope of the electrode. Thus, you should calibrate at regular intervals When do you have to calibrate? After connecting a sensor Routinely within the framework of the company quality assurance When the calibration interval has expired Automatic calibration (AutoCal) Make sure that in the sensor menu, Buffer menu, the buffer set is correctly selected (see SETTINGS FOR PH MEASUREMENTS, PAGE 67). Use any one to five buffer solutions of the selected buffer set in ascending or descending order. Below, calibration with Technical buffers (TEC) is described. When other buffer sets are used, other nominal buffer values are displayed. Apart from that, the procedure is identical. If single-point calibration was set in the menu, the calibration procedure is automatically finished with the measurement of buffer solution 1 and the calibration record is displayed. 1. Connect the ph electrode to the meter. 2. Keep the buffer solutions ready. When measuring without temperature sensor: Temper the buffer solutions or measure the current temperature. 3. In the measured value display, select the measured parameter ph or mv with <M>. 4. Start the calibration with <CAL>. The calibration display for the first buffer appears (voltage display). ba76161e01 08/

32 ph value TruLab ph/ise 1320 ph Buffer 1 AutoCal YSI C mv 5. Thoroughly rinse the electrode with deionized water. 6. Immerse the electrode in the first buffer solution. 7. When measuring without temperature sensor: Enter the temperature of the buffer with < >< >. 8. Start the measurement with <ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. A progress bar is displayed and the display of the measured parameter flashes. ph AutoCal YSI AR Buffer C mv 9. Wait for the end of the measurement with stability control or accept the calibration value with <ENTER>. The calibration display for the next buffer appears (voltage display). 10. If necessary, finish the calibration procedure as a single-point calibration with <M>. The calibration record is displayed. For single-point calibration, the instrument uses the Nernst slope (-59.2 mv/ph at 25 C) and determines the zero point of the electrode. Continuing with twopoint calibration 11. Thoroughly rinse the electrode with deionized water. 12. Immerse the electrode in the second buffer solution. 13. When measuring without temperature sensor: Enter the temperature of the buffer with < >< >. 32 ba76161e01 08/2015

33 TruLab ph/ise 1320 ph value 14. Start the measurement with <ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. A progress bar is displayed and the display of the measured parameter flashes. ph Buffer mv 24.8 C AutoCal YSI AR 15. Wait for the measurement with stability control to be completed or terminate the stability control and take over the calibration value with <ENTER>. The calibration display for the next buffer appears (voltage display). 16. If necessary, finish the calibration procedure as a two-point calibration with <M>. The calibration record is displayed. Continuing with three- to five-point calibration 17. Thoroughly rinse the electrode with deionized water. 18. Immerse the electrode in the next buffer solution. 19. When measuring without temperature sensor: Enter the temperature of the buffer with < >< >. 20. Start the measurement with <ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. A progress bar is displayed and the display of the measured parameter flashes. ph AutoCal YSI AR Buffer C mv 21. Wait for the measurement with stability control to be completed or terminate the stability control and take over the calibration value with <ENTER>. ba76161e01 08/

34 ph value TruLab ph/ise 1320 Calibration is automatically completed after the last buffer of a buffer set has been measured. Then the calibration record is displayed. The calibration line is determined by linear regression Manual calibration (ConCal) Make sure that in the sensor menu, Buffer menu, the ConCal buffer set is selected (see section SETTINGS FOR PH MEASUREMENTS, page 67). Use any one to five buffer solutions in ascending or descending order. If single-point calibration was set in the menu, the calibration procedure is automatically finished with the measurement of buffer solution 1 and the calibration record is displayed. 1. Connect the ph electrode to the meter. The ph measuring window is displayed. 2. Keep the buffer solutions ready. When measuring without temperature sensor: Temper the buffer solutions or measure the current temperature. 3. In the measured value display, select the measured parameter ph or mv with <M>. 4. Start the calibration with <CAL>. The calibration display appears. ph ConCal Buffer C mv 1 5. Thoroughly rinse the electrode with deionized water. 6. Immerse the electrode in the first buffer solution. 7. When measuring without temperature sensor: Enter the temperature of the buffer with < >< >. 8. Start the measurement with <ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. A progress bar is displayed and the display of the measured parameter flashes. 34 ba76161e01 08/2015

35 TruLab ph/ise 1320 ph value ph Buffer C mv ConCal AR 9. Wait for the end of the measurement with stability control or accept the calibration value with <ENTER>. The calibration display for the setting of the nominal buffer value appears. ph ConCal Buffer C Set the nominal buffer value for the measured temperature with < >< >. 11. Accept the set calibration value with <ENTER>. The calibration display for the next buffer appears (voltage display). 12. If necessary, finish the calibration procedure as a single-point calibration with <M>. The calibration record is displayed. For single-point calibration, the instrument uses the Nernst slope (-59.2 mv/ph at 25 C) and determines the zero point of the electrode. Continuing with twopoint calibration 13. Thoroughly rinse the electrode with deionized water. 14. Immerse the electrode in the second buffer solution. 15. When measuring without temperature sensor: Enter the temperature of the buffer with < >< >. 16. Start the measurement with <ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. A progress bar is displayed and the display of the measured parameter flashes. ba76161e01 08/

36 ph value TruLab ph/ise Wait for the measurement with stability control to be completed or terminate the stability control and take over the calibration value with <ENTER>. The calibration display for the setting of the nominal buffer value appears. ph ConCal Buffer C Set the nominal buffer value for the measured temperature with < >< >. 19. Accept the set calibration value with <ENTER>. The calibration display for the next buffer appears (voltage display). 20. Finish the calibration procedure as a two-point calibration with <M>. The calibration record is displayed. Continuing with three- to five-point calibration 21. Thoroughly rinse the electrode with deionized water. 22. Immerse the electrode in the next buffer solution. 23. When measuring without temperature sensor: Enter the temperature of the buffer with < >< >. 24. Start the measurement with <ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. A progress bar is displayed and the display of the measured parameter flashes. 25. Wait for the measurement with stability control to be completed or terminate the stability control and take over the calibration value with <ENTER>. The calibration display for the setting of the nominal buffer value appears. 36 ba76161e01 08/2015

37 TruLab ph/ise 1320 ph value ph ConCal Buffer C Set the nominal buffer value for the measured temperature with < >< >. 27. Accept the set calibration value with <ENTER>. The calibration display for the next buffer appears (voltage display). 28. Use <M> to finish calibration or Continue calibrating using the next buffer with <ENTER>. After the fifth buffer has been measured the calibration is automatically finished. Then the calibration record is displayed. The calibration line is determined by linear regression Calibration points Calibration can be performed using one to five buffer solutions in any order (single-point to five-point calibration). The meter determines the following values and calculates the calibration line as follows: Values to be determined Displayed calibration data 1-point Asy Zero point = Asy 2-point 3-point to 5-point Asy Slp. Asy Slp. Slope = Nernst slope (-59.2 mv/ph at 25 C) Zero point = Asy Slope = Slp. Zero point = Asy Slope = Slp. The calibration line is calculated by linear regression. You can display the slope in the units, mv/ph or % (see section SETTINGS FOR PH MEASUREMENTS, page 67). ba76161e01 08/

38 ph value TruLab ph/ise Calibration data The calibration record is automatically transmitted to the interface after calibrating. Displaying the calibration data Displaying the calibration data storage The calibration record of the last calibration is to be found under the menu item, <MENU/ENTER> / Calibration / / Calibration record. To open it, press the <CAL > key in the measured value display. Subsequently, you can transmit the displayed calibration data to the interface, e. g. to a PC, with <F2>[USB output]. The calibration records of the last calibrations (up to 10) are given in the menu, <MENU/ENTER>/Calibration / Calibration data storage. Menu item Calibration / Calibration data storage /Display Calibration / Calibration data storage / Output to USB Setting/function Description - Displays the calibration record. Further options: Scroll through the calibration records with < >< >. Output the displayed calibration record to the interface with <F2>/[USB output]. Quit the display with <F1>/ [Back] or <MENU/ENTER>. Switch directly to the measured value display with <M>. - Outputs the calibration records to the interface. Calibration evaluation After calibrating, the meter automatically evaluates the calibration. The zero point and slope are evaluated separately. The worse evaluation of both is taken into account. The evaluation appears on the display and in the calibration record. 38 ba76161e01 08/2015

39 TruLab ph/ise 1320 ph value Display Calibration record Zero point [mv] Slope [mv/ph] <-15 or > <- 20 or > <- 25 or -> > <-60.5 or > <-61.0 or > Clean the electrode according to the electrode operating manual Error Error Error elimination (see section 13 WHAT TO DO IF..., page 89) Calibration record (example) ph/ise 1320 Ser. no CALIBRATIONpH 15:55 Ser. no AutoCal TEC Buffer Buffer Buffer Voltage 1 184,0 mv Voltage 2 3,0 mv Voltage 3-177,0 mv Temperature C Temperature C Temperature C Slope mv/ph Asymmetry 4.0 mv Sensor +++ ba76161e01 08/

40 ph value TruLab ph/ise Continuous measurement control (CMC function) The Continuous Measurement Control (CMC function) facilitates to evaluate the current measured value instantly and definitely. After each successful calibration the scale of the ph measuring range is displayed in the measured value display. Here you can very clearly see whether or not the current measured value is in the calibrated part of the measuring range. The following information is displayed: ph C USB output 1 Measuring range for which a valid calibration is available (white). Measured values in this range are suitable for documentation. 2 Measuring range for which no valid calibration is available (shaded). Measured values in this range are not suitable for documentation. If necessary, calibrate the meter with buffers covering this measuring range. If the current measured value is outside the calibrated range, this area is shaded stronger. If a measured value is outside the measuring range ph 0-14, overflow arrows are displayed at the left or right edge of the measuring range. 3 Currently measured ph value (needle) 4 Marking lines for all nominal buffer values used with the last valid calibration The limits of the calibrated range are determined by the buffers used for calibration: Lower limit: Buffer with lowest ph value - 2 ph units Upper limit: Buffer with highest ph value + 2 ph units 40 ba76161e01 08/2015

41 TruLab ph/ise 1320 ORP voltage 7 ORP voltage 7.1 Measuring Measuring the ORP NOTE When connecting an earthed PC/printer, measurements cannot be performed in earthed media as the values would be incorrect. The USB interface is not galvanically isolated. 1. Connect the ORP electrode to the meter. 2. If necessary, select the U (mv) display with <M>. 3. When measuring without temperature sensor: Measure the temperature of the test sample. In the <MENU/ENTER>/U/Man. temperature menu, set the temperature value with < >< >. 4. Rinse the ORP electrode and immerse it in the test sample. The measured value is checked for stability (automatic stability control). The display of the measured parameter flashes. 5. Wait for a stable measured value. The display of the measured parameter no longer flashes. U mv 24.8 C USB output Stability control (AutoRead ) Criteria for a stable measured value The stability control function (AutoRead) continually checks the stability of the measurement signal. The stability has a considerable impact on the reproducibility of measured values. You can activate or switch off the automatic Stability control function (see section SYSTEM, page 76). The measured parameter flashes on the display as soon as the measured value is outside the stability range when you switch over between the measured parameters with <M>. when the automatic Stability control is switched off. The Stability control function checks whether the measured values are stable within the monitored time interval. ba76161e01 08/

42 ORP voltage TruLab ph/ise 1320 Measured parameter Time interval Stability in the time interval ORP voltage 15 seconds : better than 0.3 mv Temperature 15 seconds : better than 0.5 C The minimum duration until a measured value is assessed as stable is the monitored time interval. The actual duration is mostly longer. Manually starting the stability control You can start the Stability control manually at any time, irrespective of the setting for automatic Stability control (see section SYSTEM, page 76) in the System menu. 1. Freeze the measured value with <AR>. The [HOLD] status indicator is displayed. 2. Using <ENTER>, activate the Stability control function manually. The [AR] status indicator appears while the measured value is assessed as not stable. A progress bar is displayed and the display of the measured parameter flashes. The [HOLD][AR] status indicator appears as soon as a stable measured value is recognized. The progress bar disappears and the display of the measured parameter stops flashing. The current measurement data is output to the interface. Measurement data meeting the stability control criterion is marked by AR. You can prematurely terminate the Stability control function manually with <ENTER> at any time. If the Stability control function is prematurely terminated, the current measurement data are output to the interface without the AutoRead info. 3. Using <ENTER>, start a further measurement with Stability control. or Release the frozen measured value again with <AR>. The display switches to the measured value display. The [AR][HOLD] status display disappears. Freezing the measured value (HOLD function) With the HOLD function, you can freeze the current measured value. The displayed measured value stops changing until you switch the HOLD function off. If the HOLD function is active, you can, e.g. start a manual measurement with stability control. 1. Freeze the measured value with <AR>. The [HOLD] status indicator is displayed. 42 ba76161e01 08/2015

43 TruLab ph/ise 1320 ORP voltage 2. Release the frozen measured value again with <AR>. The HOLD function is switched off. The [HOLD] status display disappears Measuring the relative ORP To measure the difference of the ORPs of two solutions, you have to define the ORP of one solution as the zero point first. ph and ORP electrodes can be used to determine the relative ORP. 1. Connect the ORP electrode to the meter. 2. Prepare the reference solution for the determination of the reference point. 3. Select the ΔU (mv display with <M>. 4. Immerse the ORP electrode in the reference solution. 5. Display the potential of the current zero point with <CAL>. 6. Press <ENTER> to measure the reference solution. The measured value is checked for stability (automatic stability control). The display of the measured parameter flashes. The measured potential is defined as the zero point. or Press <M> to terminate the display of the zero point. 7. Rinse the ORP electrode and immerse it in the test sample. The measured value is checked for stability (automatic stability control). The display of the measured parameter flashes. 8. Wait for a stable measured value. The display of the measured parameter no longer flashes. ΔU 13.5 mv 24.8 C USB output AutoRead The Stability control function checks whether the measured values are stable within the monitored time interval. ba76161e01 08/