Xylem SL Analytics Lab 865 Operating Manual
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Xylem SL Analytics Lab 865 Operating Manual

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OPERATING MANUAL
ba77145e02 12/2017
Lab 865
pH METER

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Summary of Contents for Xylem SL Analytics Lab 865

  • Page 1 OPERATING MANUAL ba77145e02 12/2017 Lab 865 pH METER...
  • Page 2 Lab 865 For the most recent version of the manual, please visit www.si-analytics.com. Copyright © 2017 Xylem Analytics Germany GmbH Printed in Germany. ba77145e02 12/2017...

  • Page 3: Table Of Contents

    Lab 865 Contents Lab 865 - Contents Overview ......... . 6 Lab 865 meter .
  • Page 4 Contents Lab 865 5.1.1 Measuring the pH value ......21 5.1.2 Measuring the temperature ..... . 23 Calibration .
  • Page 5 Lab 865 Contents 10.1.2 Replacing the batteries......53 10.2 Cleaning......... . 54 10.3 Packing .

  • Page 6: Overview

    Overview Lab 865 Overview Lab 865 meter The compact Lab 865 precision pH meter enables you to perform pH measure- ments rapidly and reliably. The Lab 865 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.

  • Page 7: Safety

    Lab 865 Safety Safety Safety information 2.1.1 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 infor- mation you need.

  • Page 8: Safe Operation

    Safety Lab 865 Safe operation 2.2.1 Authorized use This meter is authorized exclusively for pH and ORP 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 12 T , page 58).

  • Page 9: Commissioning

    Lab 865 Commissioning Commissioning Scope of delivery  pH meter Lab 865  4 batteries 1.5 V Mignon type AA  Power pack  USB cable  Stand  Stand holder  Comprehensive operating manual  Short instructions  CD-ROM with –...

  • Page 10: Inserting The Batteries

    Commissioning Lab 865 3.3.1 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 Battery compartment Open the battery compartment (1) on the underside of the meter. CAUTION Make sure that the poles of the batteries are positioned cor- rectly.

  • Page 11: Connecting The Power Pack

    Lab 865 Commissioning 3.3.2 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 12 T , page 58). NICAL DATA CAUTION Use original power packs only (see section 12 T ECHNICAL DATA page 58).

  • Page 12: Operation

    Operation Lab 865 Operation General operating principles 4.1.1 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.

  • Page 13: Display

    Lab 865 Operation 4.1.2 Display 6.093 25.0 °C AutoCal HOLD AR 01.02.2014 Menu USB output 08:00 1 Status information (sensor) 2 Measured value (with unit) 3 Measured parameter 4 Continuous measurement control (CMC function) 5 Sensor symbol (calibration evaluation, calibration interval) 6 Measured temperature (with unit) 7 Status information (meter) 8 Softkeys and date + time...

  • Page 14: Socket Field

    Operation Lab 865 4.1.4 Socket field 1 pH electrode 2 Reference electrode 3 Temperature sensor 4 Mini USB-B interface 5 Power pack 6 Service interface CAUTION Only connect sensors to the meter that cannot return any volt- ages or currents that are not allowed (> SELV and > current circuit with current limiting).

  • Page 15: Switching Off

    Lab 865 Operation Switching off Press the <On/Off> key. Automatic switch-off The instrument has an automatic switch-off function in order to save the function batteries (see section 7.3.1 S , page 42). The automatic switchoff YSTEM switches off the measuring instrument if no key is pressed for an adjustable period.

  • Page 16: Menus And Dialogs

    Operation Lab 865 Operating Description mode Measuring The measurement data of the connected sensor are shown in the measured value display Calibration The course of a calibration with calibration information, func- tions and settings is displayed Storage in The meter stores measuring data automatically or manually memory Transmit- The meter transmits measurement data and calibration...

  • Page 17: Example 1 On Navigation: Setting The Language

    Lab 865 Operation General Language: English Beep Illumination Contrast 50 % Switchoff time 01.02.2014 Back 08:00  Functions Functions are designated by the name of the function. They are immediately carried out by confirming with <ENTER>. Example: Display the Calibration record function. Calibration record Calibration data storage Buffer...
  • Page 18 Operation Lab 865 6.949 25.0 °C 01.02.2014 Menu USB output 08:00 Using <F1__>/[Menu], open the Storage & config menu. The instrument is in the setting mode. Storage & config System Data storage 01.02.2014 Back 08:00 Select the System submenu with <><>. The current selection is displayed with a frame.

  • Page 19: Example 2 On Navigation: Setting The Date And Time

    Lab 865 Operation General Language: English Beep Illumination Contrast 50 % Switchoff time 01.02.2014 Back 08:00 Open the setting mode for the Language with <ENTER>. General Language: English Beep Illumination Contrast 50 % Switchoff time 01.02.2014 Back 08:00 Select the required language with <><>. Confirm the setting with <ENTER>.
  • Page 20 Operation Lab 865 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). In the measured value display: Using <F1__>/[Menu], open the Storage & config menu. The instrument is in the setting mode.

  • Page 21: Ph Value

    Lab 865 pH value pH value Measuring 5.1.1 Measuring the pH value When connecting an earthed PC, 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 sys- tem, always measure with a calibrated electrode (see section 5.2 , page 24).
  • Page 22 pH value Lab 865 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 func- tion with <AR> or <M> at any time. Using <ENTER>, activate the Stability control function manually.

  • Page 23: Measuring The Temperature

    Lab 865 pH value 5.1.2 Measuring the temperature For reproducible pH and ORP 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.

  • Page 24: Calibration

    pH value Lab 865 Calibration 5.2.1 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.
  • Page 25 Lab 865 pH value Buffer -180.0 24.8 °C AutoCal 01.02.2014 08:00 Thoroughly rinse the electrode with deionized water. Immerse the electrode in the first buffer solution. When measuring without temperature sensor: Measure the temperature of the buffer and enter it with <><>. Start the measurement with <ENTER>.
  • Page 26 pH value Lab 865 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. 7.000 Buffer 24.8 °C AutoCal 01.02.2014...

  • Page 27: Manual Calibration (Concal)

    Lab 865 pH value Calibration is automatically completed after the last buffer of a buf- fer set has been measured. Then the calibration record is dis- played. The calibration line is determined by linear regression. 5.2.4 Manual calibration (ConCal) Make sure that in the sensor menu, Buffer menu, the ConCal buffer set is selected (see section 7.1.1 C HANGING THE SETTINGS FOR P MEASUREMENTS...
  • Page 28 pH value Lab 865 7.000 Buffer 24.8 °C ConCal 01.02.2014 08:00 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. Buffer 7.000 ...
  • Page 29 Lab 865 pH value Wait for the measurement with stability control to be completed or termi- nate the stability control and take over the calibration value with <ENTER>. The calibration display for the setting of the nominal buffer value appears. Buffer 4.035 ...

  • Page 30: Calibration Points

    pH value Lab 865 Set the nominal buffer value for the measured temperature with <><>. Accept the set calibration value with <ENTER>. The calibration display for the next buffer appears (voltage display). Use <M> to finish calibration or Continue calibrating using the next buffer with <ENTER>. After the fifth buffer has been measured the calibration is automat- ically finished.
  • Page 31 Lab 865 pH value Subsequently, you can transmit the displayed calibration data to the interface, e. g. to a PC, with <F2>[USB output]. Displaying the cali- The calibration records of the last calibrations (up to 10) are available in the bration data storage menu, <F1>/[Menu] / Calibration / Calibration data storage and in the menu, <F1__>/[Menu] / Storage &...
  • Page 32 pH value Lab 865 Display Calibration Zero point Slope record [mV] [mV/pH] - 30 ... <- 25 -62,0 ... <-61,0 ->+25 ... + 30 >-56,0 ... -50,0 Clean the electrode according to the electrode operating manual Error Error - 30 ... + 30 -62,0 ...

  • Page 33: Continuous Measurement Control (Cmc Function)

    Lab 865 pH value 5.2.7 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.

  • Page 34: Orp Voltage

    ORP voltage Lab 865 ORP voltage Measuring 6.1.1 Measuring the ORP When connecting an earthed PC, measurements cannot be performed in earthed media as the values would be incorrect. The USB interface is not galvanically isolated. Connect the ORP electrode to the meter. If necessary, select the mV display with <M>.
  • Page 35 Lab 865 ORP voltage Measured parame- 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.

  • Page 36: Measuring The Temperature

    ORP voltage Lab 865 Release the frozen measured value again with <AR>. The HOLD function is switched off. The [HOLD] status display disappears. 6.1.2 Measuring the temperature For reproducible ORP measurements, it is essential to measure the tempera- ture of the test sample. You have the following options to measure the temperature: ...

  • Page 37: Settings

    Lab 865 Settings Settings Measurement settings 7.1.1 Changing the settings for pH measurements The settings are made in the menu for calibration and measurement settings of the pH/ORP measurement. To open the settings, display the required parame- ter in the measured value display and press the <F1>/[menu] or <ENTER> key. After completing the settings, switch to the measured value display with <M>.

  • Page 38: Buffer Sets For Calibration

    Settings Lab 865 Menu item Possible set- Description ting Calibration /Buffer ConCal Buffer sets to be used for pH cali- NIST/DIN bration (see section 5.2 C ALIBRA , page 24). TION Calibration /One Quick calibration with 1 buffer point calibration Calibration /Cali- 1 ...
  • Page 39 Lab 865 Settings Buffer set * pH values ConCal NIST/DIN 1.679 25 °C DIN buffers according to DIN 19266 4.006 and NIST Traceable Buffers 6.865 9.180 12.454 2.000 25 °C Technical buffers 4.010 7.000 10.011 Merck 1* 4.000 20°C 7.000 9.000 Merck 2 * 1.000...
  • Page 40 Settings Lab 865 Buffer set * pH values Fluka BS * 4.006 25 °C 6.984 8.957 Radiometer * 1.678 25 °C 4.005 7.000 9.180 Baker * 4.006 25 °C 6.991 10.008 Metrohm * 3.996 25 °C 7.003 8.999 Beckman * 4.005 25 °C 7.005...

  • Page 41: Calibration Interval

    Lab 865 Settings tected by law. The buffers are selected in the menu, pH / <F1>/[Menu] / Calibra- tion / Buffer (see 7.1.1 C HANGING THE SETTINGS FOR P MEASURE 37). MENTS PAGE 7.1.3 Calibration interval The calibration evaluation is displayed as a sensor symbol. The sensor symbol flashes after the adjusted calibration interval has expired.

  • Page 42: Sensor-Independent Settings

    Settings Lab 865 Menu item Possible Description setting Resolution mV Resolution of the mV display Stability control Switches on or off the automatic stability control during measurement (see sec- tion Stability control (AutoRead) & HOLD function, page 21 ) Reset Resets all sensor settings to the delivery condition (see section 7.4.1 R ESETTING...

  • Page 43: Data Storage

    Lab 865 Settings Menu item Possible set- Description ting System / Interface / Output of a header for Output Output header format: CSV System / Printer Settings for the integrated prin- ter of the Lab 865 P. For details, see section 10 H 7310P), RINTER ONLY P...

  • Page 44: Resetting The System Settings

    Settings Lab 865 Setting Default settings Resolution pH 0.001 Resolution mV Asymmetry 0 mV Slope -59.2 mV Man. temperature 25 °C One point calibration Stability control Temperature unit °C The sensor settings are reset under the Reset menu item in the menu for cali- bration and measurement settings.

  • Page 45: Data Storage

    Lab 865 Data storage Data storage You can transmit measured values (datasets) to the data storage:  Manual storage (see section 8.1 M , page 45) ANUAL STORAGE  Automatic storage at intervals (see section 8.2 A UTOMATIC STORAGE AT , page 46) INTERVALS Each storage process transmits the current dataset to the interface at the same...

  • Page 46: Automatic Storage At Intervals

    Data storage Lab 865  To erase the entire storage, confirm Yes.  To cancel the storage process and switch to the measured value display, confirm No. Then you can e.g. transmit the stored data to a PC (see section 8.3.1 E , page 48) and subsequently DITING THE MEASURED VALUE STORAGE...
  • Page 47 Lab 865 Data storage Settings You can configure the automatic storage function with the following settings: Menu item Possible set- Description ting ID number 1 ... 10000 ID number for the dataset series. Interval 1 s, 5 s, 10 s, Storage interval.

  • Page 48: Measurement Data Storage

    Data storage Lab 865 automatic storage of measurement data (such as the display). By pressing any key the energy saving mode is switched off again. Terminating the Proceed as follows to switch off the automatic storage function before the automatic storage adjusted storage duration has expired: function prema- turely...
  • Page 49 Lab 865 Data storage Settings Menu item Setting/ Description function Data storage / Displays all measurement datasets Manual data storage / page by page. Display Further options:  Scroll through the datasets with <><>.  Output the displayed dataset to the interface with <F2>/[USB output].

  • Page 50: Erasing The Measurement Data Storage

    Data storage Lab 865 Quitting the display To quit the display of stored measurement datasets, you have the following options:  Switch directly to the measured value display with <M>.  Quit the display and move to the next higher menu level with <F1>/[Back]. 8.3.2 Erasing the measurement data storage Erasing the measurement data storage (see section 8.3.1 E DITING THE...

  • Page 51: Transmitting Data (Usb Interface)

    Lab 865 Transmitting data (USB interface) Transmitting data (USB interface) Options for data transmission Via the USB interface you can transmit data to a PC. The following table shows which data are transmitted to the interface in which way: Data Control Operation / description Current...

  • Page 52: Connecting A Pc

    Transmitting data (USB interface) Lab 865 Connecting a PC Connect the Lab 865 to the PC via the USB interface. NOTE When connecting an earthed PC, measurements cannot be performed in earthed media as the values would be incorrect. The USB interface is not galvanically isolated. Installation of the System requirements of the PC for installation of the USB driver: USB driver on the...

  • Page 53: Maintenance, Cleaning, Disposal

    Lab 865 Maintenance, cleaning, disposal Maintenance, cleaning, disposal 10.1 Maintenance 10.1.1 General maintenance activities The only maintenance activity required is replacing the batteries. See the relevant operating manuals of the electrodes for instruc- tions on maintenance. 10.1.2 Replacing the batteries You can operate the meter either with normal batteries or with rechargeable batteries (Ni-MH).

  • Page 54: Cleaning

    Maintenance, cleaning, disposal Lab 865 Close the battery compartment (1). The date (day) flashes on the display. Set the date and time (see section 4.4.6 E XAMPLE ON NAVIGATION , page 19) ETTING THE DATE AND TIME Dispose of used batteries according to the local regulations of your country.

  • Page 55: What To Do If

    Lab 865 What to do if... What to do if... 11.1 pH/ORP More information and instructions on cleaning and exchange of sensors are given in the documentation of your sensor. Error message The measured value is outside the measuring range. OFL, UFL Cause Remedy...
  • Page 56 What to do if... Lab 865 No stable measured Cause Remedy value pH electrode: – Junction contaminated – Clean junction – Membrane contaminated – Clean membrane Test sample: – pH value not stable – Measure with air excluded if necessary –...

  • Page 57: General Information

    Lab 865 What to do if... 11.2 General information Sensor symbol Cause Remedy flashes – Calibration interval expired – Recalibrate the measuring system Display Cause Remedy – Batteries almost empty – Replace the batteries (see section 10.1 M AINTENANCE page 53) Instrument does not Cause Remedy...

  • Page 58: Technical Data

    Technical data Lab 865 Technical data 12.1 Measuring ranges, resolution, accuracy Measuring ranges, Parameter Measuring range Resolution resolution -2.0 ... +20.0 -2.00 ... +20.00 0.01 -2.000 ... +19.999 0.001 U [mV] -1200.0 ... +1200.0 -2500 ... +2500 T [°C] -5.0 ... +105.0 T [°F] 23.0 ...

  • Page 59: General Data

    Lab 865 Technical data 12.2 General data Dimensions Approx. 230 x 190 x 80 mm Weight Approx. 0.8 kg Mechanical structure Type of protection IP 43 Electrical safety Protective class Test certificates Ambient Storage -25 °C ... +65 °C conditions Operation +5 °C ...
  • Page 60 Technical data Lab 865 Guidelines EC directive 2004/108/EC and norms used EN 61326-1 EN 61000-3-2 EN 61000-3-3 FCC Class A Meter safety EC directive 2006/95/EC EN 61010-1 IP protection class EN 60529 FCC Class A Equipment Statement Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.

  • Page 61: Firmware Update

    Lab 865 Firmware update Firmware update Available firmware updates are provided on the Internet. With the firmware update program and a PC you can update the firmware of the Lab 865 to the newest version. For the update you have to connect the meter to a PC. For the update via the USB interface, the following is required: ...
  • Page 62 Firmware update Lab 865 ba77145e02 12/2017...

  • Page 63: Glossary

    Lab 865 Glossary Glossary pH/ORP Asymmetry see zero point Electromotive force of The electromotive force U of the combination electrode is the measur- an electrode able electromotive force of an electrode in a solution. It equals the sum of all the galvanic voltages of the combination electrode. Its dependency on the pH results in the electrode function, which is char- acterized by the parameters, slope and zero point.
  • Page 64 Glossary Lab 865 Measured value The measured value is the special value of a measured parameter to be determined. It is given as a combination of the numerical value and unit (e. g. 3 m; 0.5 s; 5.2 A; 373.15 K). Molality Molality is the quantity (in Mol) of a dissolved substance in 1000 g sol- vent.

  • Page 65: Index

    Lab 865 Index Index Measuring ORP voltage ....34 Automatic switch-off ....15 pH .
  • Page 66 Index Lab 865 ba77145e02 12/2017...
  • Page 68 Xylem also provides a leading portfolio of smart metering, network technologies and advanced analytics solutions for water, electric and gas utilities. In more than 150 countries, we have strong, long-standing relationships with customers who know us for our powerful combination of leading product brands and applications expertise with a strong focus on developing comprehensive, sustainable solutions.

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