wtw pH 3310 Operating Manual
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wtw pH 3310 Operating Manual

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Operating manual
pH 3310
pH meter
ba75802e02
12/2008

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  • Page 1 Operating manual pH 3310 pH meter ba75802e02 12/2008...
  • Page 2 © Copyright Weilheim 2008, WTW GmbH Reproduction in whole - or even in part - is prohibited without the express written permission of WTW GmbH, Weilheim. Printed in Germany. ba75802e02 12/2008...

  • Page 3: Table Of Contents

    Contents pH 3310 - Contents Overview ........5 Keypad .
  • Page 4 Contents pH 3310 Storage ........50 4.5.1...

  • Page 5: Overview

    3310 Overview Overview The compact pH 3310 precision pH meter enables you to perform pH measurements rapidly and reliably. The pH 3310 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications. The proven calibration procedures and automatic stability control function (AR) support your work with the pH meter.

  • Page 6: Keypad

    Overview pH 3310 Keypad ENTER pH 3310 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 7: Display

    3310 Overview <ENTER>: Opens the menu for measurement settings / confirms E N T E R <ENTER >: entries Opens the menu for system settings <AR> Freezes the measured value (HOLD function) Switches the AutoRead measurement on or off Display 6.093...

  • Page 8: Socket Field

    Overview pH 3310 Socket field Connectors: pH electrode Reference electrode Temperature sensor USB B (device) interface 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).

  • Page 9: Safety

    3310 Safety Safety This operating manual contains basic instructions that you must follow during the commissioning, operation and maintenance of the meter. Consequently, all responsible personnel must read this operating manual before working with the meter. The operating manual must always be available within the vicinity of the meter.

  • Page 10: Authorized Use

    Safety pH 3310 Authorized use This meter is authorized exclusively for pH and ORP measurements in a laboratory or field environment. The technical specifications as given in chapter 7 T must ECHNICAL DATA be observed. Only the operation and running of the meter according to the instructions given in this operating manual is authorized.
  • Page 11 Safety datasheets of the chemical manufacturers. Caution In addition to the safety instructions mentioned here, also follow the safety instructions of the sensors used. The operating manuals of the sensors are available on the supplied CD and on the Internet under www.WTW.com. ba75802e02 12/2008...
  • Page 12 Safety pH 3310 ba75802e02 12/2008...

  • Page 13: Commissioning

    3310 Commissioning Commissioning Scope of delivery pH meter, pH 3310 4 batteries 1.5 V Mignon type AA Short instructions CD-ROM with detailed operating manual Initial commissioning Perform the following activities: Insert the supplied batteries Switch on the meter Set the date and time 3.2.1 Inserting the batteries...

  • Page 14: Switching On The Meter

    Commissioning pH 3310 Note Alternatively, you can also use Ni-MH rechargeable batteries (type Mignon AA). In order to charge the batteries, an external charging device is required. Caution Make sure that the poles of the batteries are positioned correctly. ±...

  • Page 15: Operation

    3310 Operation Operation Switching on the meter Switching on Press the <On/Off> key. 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. 6.949 25.0 °C 22.09.2008...

  • Page 16: General Operating Principles

    An overview of the operating elements and the display is given in display section 1.1 and section 1.2. Operating modes, An overview of the operating modes and navigation of the pH 3310 is navigation given in section 4.2.1 and section 4.2.2. 4.2.1 Operating modes...

  • Page 17: Navigation

    3310 Operation 4.2.2 Navigation Measured value display In the measured value display, you can open the respective measuring menu with <F1> (short keystroke). open the Storage & config menu with the sensor-independent settings by pressing <F1 > (long keystroke, approx. 2 s on <F1>).
  • Page 18 Operation pH 3310 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 Buffer AutoCalTEC One point calibration Calibration interval Unit for slope mV/pH 2.00 4.01 7.00 10.01...

  • Page 19: Example 1 On Navigation: Setting The Language

    3310 Operation 4.2.3 Example 1 on navigation: Setting the language Press the <On/Off> key. The measured value display appears. The instrument is in the measuring mode. 6.949 25.0 °C 22.09.2008 Menu USB output 08:00 Using <F1 >/[Menu] open the Storage & config menu.
  • Page 20 Operation pH 3310 System General Measurement Interface Clock Service information Reset 22.09.2008 Back 08:00 Select the General submenu with <▲><▼>. The current selection is displayed with a frame. Open the General submenu with <ENTER>. General Language: Deutsch Beep Illumination Contrast...
  • Page 21 3310 Operation Confirm the setting with <ENTER>. The meter switches to the measuring mode. The selected language is active. ba75802e02 12/2008...

  • Page 22: Example 2 On Navigation: Setting The Date And Time

    Operation pH 3310 4.2.4 Example 2 on navigation: Setting the date and time The meter has a clock with a date function. The date and time are indicated in the status line of the measured value display. When storing measured values and calibrating, the current date and time are automatically stored as well.
  • Page 23 3310 Operation Change and confirm the setting with <▲><▼> and <ENTER>. The minutes are highlighted. Change and confirm the setting with <▲><▼> and <ENTER>. The seconds are highlighted. Change and confirm the setting with <▲><▼> and <ENTER>. The time is set.

  • Page 24: Sensor-Independent Settings

    Operation pH 3310 Sensor-independent settings The Storage & config menu comprises the following settings: System (see section 4.3.1). Data storage (see section 4.3.1) 4.3.1 System Overview The following sensor-independent meter characteristics can be adjusted in the Storage & config/System menu:...

  • Page 25: Data Storage

    For details, see section 4.7.2 4.3.2 Data storage This menu contains all functions to display, edit and erase stored measured values and calibration records. Note Detailed information on the storage functions of the pH 3310 is given in section 4.5. ba75802e02 12/2008...

  • Page 26: Automatic Stability Control

    Operation pH 3310 4.3.3 Automatic Stability control The automatic Stability control function continuously 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 4.3.1).

  • Page 27: Ph Value / Orp Voltage

    3310 Operation pH value / ORP voltage 4.4.1 General information You can measure the following variables: pH value [ ] ORP [mV] Warning When a grounded PC is connected, measurements cannot be performed in grounded media as incorrect values would result.

  • Page 28: Measuring The Ph Value

    Operation pH 3310 4.4.2 Measuring the pH value Perform the preparatory activities according to section 4.4.1. Immerse the pH electrode in the test sample. 6.949 24.8 °C 22.09.2008 Menu USB output 08:00 Select the pH or mV display with <M>.
  • Page 29 3310 Operation Release the frozen measured value again with <AR> or <M>. The [AR] status display disappears. The display switches back to the previous representation. Criteria for a stable The Stability control function checks whether the measured values are measured value stable within the monitored time interval.

  • Page 30: Measuring The Orp

    Operation pH 3310 4.4.3 Measuring the ORP Note ORP electrodes are not calibrated. However, you can check ORP electrodes using a test solution. Perform the preparatory activities according to section 4.4.1. Submerse the ORP electrode in the sample. 157.0 24.8 °C 22.09.2008...
  • Page 31 3310 Operation prematurely terminated, the current measurement data are not output to the interface. Release the frozen measured value again with <AR> or <M>. The [AR] status display disappears. The display switches back to the previous representation. Criteria for a stable...

  • Page 32: Settings For Ph And Orp Measurements

    Operation pH 3310 4.4.4 Settings for pH and ORP measurements Overview The following settings are possible for pH and ORP measurements: Resolution Calibration interval Buffers for calibration Unit of the temperature Automatic stability control Unit for slope Calibration record (display)
  • Page 33 3310 Operation Menu item Possible Description setting Temperature unit °C Temperature unit, °F degrees Celsius or degrees Fahrenheit. All temperatures are displayed with the selected unit. Resolution pH 0.001 Resolution of the pH 0.01 display: Resolution mV Resolution of the mV...

  • Page 34: Ph Calibration

    Operation pH 3310 4.4.5 pH calibration Why calibrate? pH combination electrodes age. This changes the zero point (asymmetry) and slope of the pH combination 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 35 3310 Operation Buffer set* values Merck 4 * 2.000 20°C 4.000 7.000 10.000 Merck 5* 4.010 25 °C 7.000 10.000 DIN 19267 1.090 25 °C 4.650 6.790 9.230 Mettler Toledo USA * 1.679 25 °C 4.003 7.002 10.013 Mettler Toledo EU * 1.679...
  • Page 36 Operation pH 3310 Buffer set* values Hamilton Duracal * 4.005 25 °C 7.002 10.013 Precisa * 3.996 25 °C 7.003 8.999 Reagecon TEC * 2.000 25 °C 4.010 7.000 10.000 Reagecon 20 * 2.000 20°C 4.000 7.000 10.000 13.000 Reagecon 25 * 2.000...
  • Page 37 3310 Operation 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: Determined Displayed calibration data values...
  • Page 38 Operation pH 3310 Sample record 31.10.2008 16:55 pH 3310 Ser. no. 08502113 CALIBRATION pH 31.10.2008 16:13:33 AutoCal TEC Buffer 1 4.01 Buffer 2 7.00 Buffer 3 10.01 Voltage 1 184.0 mV 24.0 °C Voltage 2 3.0 mV 24.0 °C Voltage 3 -177.0 mV...

  • Page 39: Calibration Interval

    3310 Operation Preparatory activities Perform the following preparatory activities when you want to calibrate: Connect the pH combination electrode to the meter. The pH measuring window is displayed. Keep the buffer solutions ready. Adjust the temperature of the buffer solutions, or measure the current temperature, if you measure without a temperature sensor.

  • Page 40: Carrying Out An Automatic Calibration (Autocal)

    Operation pH 3310 4.4.7 Carrying out an automatic calibration (AutoCal) Make sure that the correct buffer set is selected in the sensor menu, Buffer submenu (see page 32). Of the selected buffer set, use one to five buffer solutions of your choice in ascending or descending order.
  • Page 41 3310 Operation 4.010 181.3 24.8 °C AutoCal 22.09.2008 08:00 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. 181.3 24.8 °C AutoCal 22.09.2008...
  • Page 42 Operation pH 3310 7.000 24.8 °C AutoCal 22.09.2008 08:00 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.
  • Page 43 3310 Operation 10,010 -178.3 24.8 °C AutoCal 22.09.2008 08:00 Use <M> to finish calibration or switch to calibration with the next buffer with <ENTER>. Note Calibration is automatically completed after the last buffer of a buffer set has been measured. Then the calibration record is displayed.

  • Page 44: Carrying Out A Manual Calibration (Concal)

    Operation pH 3310 4.4.8 Carrying out a manual calibration (ConCal) Single-point calibration Use any buffer solution for this rapid method. The calibration will be the more exact the nearer the pH value of the buffer solution is to that of the test sample.
  • Page 45 3310 Operation Asymmetry 7.000 24.8 °C ConCal 22.09.2008 08:00 Wait for the measurement with stability control to be completed. Set the nominal buffer value for the measured temperature with <▲><▼>. Take over the calibration value for the asymmetry with <ENTER>.
  • Page 46 Operation pH 3310 Continuing with two- Thoroughly rinse the combination electrode with distilled water. point calibration Immerse the electrode in buffer solution 2. When measuring without temperature sensor: Measure the temperature of the buffer manually and enter it with <▲><▼>.

  • Page 47: Displaying Calibration Records

    3310 Operation 4.4.9 Displaying calibration records The calibration data can be displayed and then output to the interface. Displaying the The calibration record of the last calibration is to be found under the calibration record menu item, Calibration / Calibration record. To open it in the measured value display, press the <CAL...
  • Page 48 Operation pH 3310 Sample printout 31.10.2008 16:55 pH 3310 CALIBRATION pH 31.10.2008 16:13:33 AutoCal TEC Buffer 1 4.01 Buffer 2 7.00 Buffer 3 10.01 Voltage 1 184.0 mV 24.0 °C Voltage 2 3.0 mV 24.0 °C Voltage 3 -177.0 mV 24.0 °C...

  • Page 49: Continuous Measurement Control (Cmc Function)

    3310 Operation 4.4.10 Continuous measurement control (CMC function) The continuous measurement control (CMC function) enables to quickly and safely evaluate the current measured value at a glance. After each successful calibration, the scale of the pH measuring range is displayed in the measured value display. Here you can very easily see whether or not the current measured value is in the calibrated part of the measuring range.

  • Page 50: Storage

    Otherwise, the AR display is missing. Calibration evaluation: +++, ++, +, -, or no evaluation Storage locations The pH 3310 meter has two measurement data memories. The measured values recorded either manually or automatic are stored separately in individual measurement data memories.

  • Page 51: Manual Storage

    3310 Operation 4.5.1 Manual storage You can transmit a measurement dataset to the data storage as follows: The dataset is at the same time output to the interface: Press the <STO> key shortly. The menu for manual storage appears.

  • Page 52: Automatic Storage At Intervals

    Operation pH 3310 4.5.2 Automatic storage at intervals The storage interval (Interval) determines the chronological interval between automatic storage processes. Each storage process transmits the current dataset to the interface at the same time. Configuring the Press the <STO_> key.
  • Page 53 3310 Operation Menu item Possible Description setting Duration 1 min ... x min Storage duration. Specifies after which time the automatic storage should be terminated. The lower limit of the storage duration is restricted by the storage interval. The upper limit is restricted by the number of free storage locations.
  • Page 54 Operation pH 3310 Terminating the Proceed as follows to switch off the automatic storage function before automatic storage the adjusted storage duration has expired: function prematurely Press the <STO_> key. The following window appears. Warning Stop automatic storage? 22.09.2008 Back 08:00 Using <▲><▼>, select Yes and confirm with <ENTER>.

  • Page 55: Editing The Measured Value Storage

    3310 Operation 4.5.3 Editing the measured value storage The contents of the manual or automatic measurement data storage can be shown on the display and output to the interface. Each of the measurement data memories has a function to erase the entire contents.

  • Page 56: Erasing The Measurement Data Storage

    Operation pH 3310 Display presentation Manual data storage (200) of a dataset Data record 3 of 64 30.10.2008 11:24:16 ID number pH 7.000 24.8 °C AR +++ 22.09.2008 Back USB output 08:00 Sample printout 31.10.2008 09:56:20 pH 3310 Ser. no. 08502113 ID number 2 6.012 24.8 °C, AR, +++...

  • Page 57: Transmitting Data (Usb Interface)

    3310 Operation Transmitting data (USB interface) 4.6.1 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...

  • Page 58: Connecting A Pc

    Operation pH 3310 4.6.2 Connecting a PC Connect the pH 3310 to the PC via the USB interface. Warning The USB interface is not galvanically isolated. When a grounded PC is connected, measurements cannot be performed in grounded media as incorrect values would result.

  • Page 59: Reset

    3310 Operation Reset You can reset (initialize) all sensor settings and sensor-independent settings separately from each other. 4.7.1 Resetting the measurement settings Note The calibration data are reset to the default settings together with the measuring parameters. Recalibrate after performing a reset.

  • Page 60: Resetting The System Settings

    Operation pH 3310 4.7.2 Resetting the system settings The following system settings can be reset to the delivery status: Setting Default settings Language English Temperature unit °C Beep Baud rate 4800 Baud Output format ASCII Contrast 50 % Illumination Switchoff time The system settings are reset in the menu, Storage &...

  • Page 61: Maintenance, Cleaning, Disposal

    3310 Maintenance, cleaning, disposal Maintenance, cleaning, disposal Maintenance The only maintenance activity required is replacing the batteries. Note See the relevant operating manuals of the combination electrodes for instructions on maintenance. 5.1.1 Replacing the batteries Unscrew the two screws (1) on the underside of the meter.

  • Page 62: Cleaning

    Maintenance, cleaning, disposal pH 3310 battery compartment. Close the battery compartment (2) and tighten the screws (1). Cleaning Occasionally wipe the outside of the meter with a damp, lint-free cloth. Disinfect the housing with isopropanol as required. Caution The housing is made of synthetic material (ABS). Thus, avoid contact with acetone or similar detergents that contain solvents.

  • Page 63: What To Do If

    3310 What to do if... What to do if... Error message Cause Remedy OFL, UFL pH combination electrode: – Measured value outside the – Use suitable combination measuring range electrode – Air bubble in front of the – Remove air bubble junction –...
  • Page 64 What to do if... pH 3310 No stable measured Cause Remedy value pH combination electrode: – Junction contaminated – Clean junction – Membrane contaminated – Clean membrane Test sample: – pH value not stable – Measure with air excluded if necessary –...
  • Page 65 3310 What to do if... Obviously incorrect Cause Remedy measured values pH combination electrode: – pH combination electrode – Use suitable combination unsuitable electrode – Temperature difference – Adjust temperature of buffer between buffer and test sample or sample solutions too high –...
  • Page 66 What to do if... pH 3310 ba75802e02 12/2008...

  • Page 67: Technical Data

    3310 Technical data Technical data General data Dimensions approx. 180 x 80 x 55 mm Weight approx. 0.4 kg Mechanical structure Type of protection IP 67 Electrical safety Protective class Test certificates Ambient Storage - 25 °C ... + 65 °C...

  • Page 68: Measuring Ranges, Resolution, Accuracy

    Technical data pH 3310 Measuring ranges, resolution, accuracy Measuring ranges, Variable 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]...
  • Page 69 3310 Technical data 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. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 70 Technical data pH 3310 ba75802e02 12/2008...

  • Page 71: Lists

    3310 Lists Lists This chapter provides additional information and orientation aids. Specialist terms The glossary briefly explains the meaning of the specialist terms. However, terms that should already be familiar to the target group are not described here. Index The index will help you to find the topics that you are looking for.
  • Page 72 Lists pH 3310 Molality Molality is the quantity (in Mol) of a dissolved substance in 1000 g solvent. ORP voltage The ORP is caused by oxidizing or reducing substances dissolved in water, if these substances become effective at an electrode surface (e.
  • Page 73 3310 Lists Index Measurement accuracy ....39 Measurement data memory Authorized use ..... . 10 Edit .
  • Page 74 Lists pH 3310 pH ......42 Transmitting data ....57 Transmitting measured values .

  • Page 75: Appendix: Firmware Update

    USB interface (virtual COM port) on the PC the driver for the USB interface (on the enclosed CD-ROM) the USB cable (included in the scope of delivery of the pH 3310). Program installation Install the downloaded firmware update on a PC.
  • Page 76 Appendix: Firmware update pH 3310 ba75802e02 12/2008...
  • Page 78 Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1 D-82362 Weilheim Germany Tel: +49 (0) 881 183-0 +49 (0) 881 183-100 Fax: +49 (0) 881 183-420 E-Mail: Info@WTW.com Internet: http://www.WTW.com...

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