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BYK LC 4 Operating Manual

Hand-held conductivity meter
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Operating manual
BYK LC 4
Cat. no.: 1740
Hand-held conductivity meter
ba75717e01
05/2007
DRAFT: Thursday, 26. April 2007

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  • Page 1 Operating manual BYK LC 4 Cat. no.: 1740 Hand-held conductivity meter ba75717e01 05/2007 DRAFT: Thursday, 26. April 2007...
  • Page 2 Therefore, we are sure you will understand that we cannot accept any legal claims resulting from the data, figures or descriptions. © Copyright Geretsried 2007, BYK-Gardner GmbH Reprinting - even as excerpts - is only allowed with the explicit written authorization of BYK-Gardner GmbH, Geretsried. Printed in Germany.

  • Page 3: Table Of Contents

    BYK LC 4 Overview ........5 Safety .
  • Page 4 BYK LC 4 Maintenance ........43 Battery exchange .

  • Page 5: Overview

    BYK LC 4 Overview Overview The BYK LC 4 hand-held meter and a suitable sensor module enable you to measure the conductivity, specific resistance, salinity or TDS (total dissolved solids) of a solution very easily. Depending on the measuring range expected, the following sensor modules are suitable for operation with the BYK LC 4 hand-held meter.
  • Page 6 Overview BYK LC 4...

  • Page 7: Safety

    BYK LC 4 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 8: General Safety Instructions

    Safety BYK LC 4 General safety instructions This instrument is built and inspected according to the relevant guidelines and norms for electronic meters (see chapter 7 T ECHNICAL DATA It left the factory in a safe and secure technical condition.

  • Page 9: Commissioning

    BYK LC 4 Commissioning Commissioning Scope of delivery ! BYK LC 4 hand-held meter ! Sensor module (TetraCon V) ! Accompanying documents: – Manual for commissioning – Short instructions to be glued in the lid of the case – CD-ROM with a description of all instrument functions...

  • Page 10: Connecting The Sensor Module

    Commissioning BYK LC 4 Connecting the sensor module Unscrew the coupling ring (1) from the meter. Place the sensor module (2) in a straight position to the meter (turn the wide cut-out to the front) and plug it in carefully with slight force.

  • Page 11: Storing The Meter And Sensor Module

    BYK LC 4 Commissioning Storing the meter and sensor module To maintain the operability of the meter and sensor module for a long time, leave the sensor module connected to the meter as possible and avoid to plug it on or off when it is not necessary. Thus, the watertight plug-in connector will be well protected.
  • Page 12 Commissioning BYK LC 4...

  • Page 13: Operation

    BYK LC 4 Operation Operation Operating elements The entire operation is carried out via the touch sensitive surface of the display (touch screen). A slight pressure on the surface suffices to start a function. Any pressure on the surface is confirmed by an acoustic signal.
  • Page 14 Operation BYK LC 4 Touch screen The touch screen contains 8 touch sensitive tactile areas that start different functions when being pressed, depending on the operating situation. The function of the keys is connected to the display indication in this area.
  • Page 15 BYK LC 4 Operation Touch screen In this operating manual, keys are indicated by angle brackets <..>. operation The touch screen symbol (example <3>) shows you which area you have to press. Function keys are indicated by the relevant name or symbol.

  • Page 16: Switching On The Meter

    Operation BYK LC 4 Switching on the meter Switch on the meter with <(>. After a short display test, a measured value is displayed. If no sensor module is connected, the Err4 error message appears on the display (see chapter 6 W ...).

  • Page 17: Measuring

    BYK LC 4 Operation Measuring 4.3.1 General information Depth of For measurements in a measuring solution we recommend an immersion immersion depth of approx. 36 mm for optimum and reproducible measurement results. The sensor module may only be submersed in a measuring solution up to below the coupling ring.

  • Page 18: Carrying Out Measurements

    Operation BYK LC 4 4.3.2 Carrying out measurements Make sure a valid calibration exists for the measuring system (see section 4.4.2), or that the cell constant is correctly adjusted (see section 4.4.2). Immerse the sensor module in the test sample.

  • Page 19: Setting The Tds Factor

    BYK LC 4 Operation 4.3.3 Setting the TDS factor If necessary, press <"_> [<Measured value>] repeatedly until the measured parameter TDS is displayed (see section 4.3.2). Using <ß > [<Temperature>], display the adjusted TDS factor. Using <ß > [<TDS factor>], select the TDS factor.

  • Page 20: Switching Over The Temperature Unit

    Operation BYK LC 4 4.3.4 Switching over the temperature unit For reproducible conductivity measurements, it is essential to measure the temperature of the test sample. A temperature sensor is integrated in the sensor module. You can switch the temperature display from °C to °F: Toggle the display between °C and °F with <ß...

  • Page 21: Adjusting/Calibrating The Cell Constant

    BYK LC 4 Operation Adjusting/calibrating the cell constant Why adjust/ The actual cell constant of the sensor module can slightly differ from the calibrate the cell nominal value of the cell constant. constant? Depending on the required measuring accuracy, you can measure with the nominal value of the cell constant that was set in the factory (see chapter ), or adjust the value of the cell constant.

  • Page 22: Adjusting The Cell Constant Manually

    Operation BYK LC 4 AutoRead The calibration procedure automatically activates the AutoRead function. (drift control) The display of the unit flashes during the AutoRead measurement. The current AutoRead measurement can be terminated at any time (without accepting the current value) by pressing <E>.
  • Page 23 BYK LC 4 Operation Tref20 Tref20 Cell RESET Tref25 mg/l mbar mS/cm M cm k cm Cell LoBat Day.Month h:min min:s Ident Confirm the displayed cell constant with g . The displayed cell constant is used immediately. Select the cell constant setting with <ß _>.

  • Page 24: Determining The Cell Constant

    Operation BYK LC 4 4.4.2 Determining the cell constant (calibration in the control stan- dard) Note This method of automatically determining the cell constant by calibration in the 0.01 mol/l KCL control standard solution can only be used for measuring cells with cell constants in the range 0.450 ...
  • Page 25 BYK LC 4 Operation Wait until the measured value is stable. The unit of the measured value display stops flashing. Return to the measuring mode with <g>. The calibrated cell constant is used. Note If no valid calibration can be accomplished, the Err3 error message appears on the display.

  • Page 26: Setting The Temperature Compensation

    Operation BYK LC 4 Setting the temperature compensation The calculation of the temperature compensation is based on the preset reference temperature, Tref20 or Tref25 (see section 4.6 S ETTING THE REFER ENCE TEMPERATURE You can select one of the following temperature compensation methods:...

  • Page 27: Selecting The Temperature Compensation

    BYK LC 4 Operation 4.5.1 Selecting the temperature compensation Open the setting menu for the cell constant with <C>. The display shows the setting last selected. Open the setting menu for the temperature compensation with <T>. The display shows the setting last selected.

  • Page 28: Setting The Linear Temperature Coefficient

    Operation BYK LC 4 4.5.2 Setting the linear temperature coefficient Select the linear temperature compensation (Lin menu) (see section 4.5.1). Open the setting of the linear temperature coefficient with <ß >. Tref20 Tref20 Cell RESET Tref25 mg/l mbar S/cm M cm...

  • Page 29: Setting The Reference Temperature

    BYK LC 4 Operation Setting the reference temperature The setting is only effective if the linear or nonlinear temperature compensa- tion is switched on. You can set the reference temperature as follows: Open the setting menu for the cell constant with <C>.

  • Page 30: Calibration Data

    Operation BYK LC 4 Calibration data The calibrated cell constant is displayed after calibration (see section 4.4.2) and is accessible any time. Switch on the meter with <(>. The display test is displayed. During the display test: Display the calibrated cell constant with <C>.

  • Page 31: Setting The Calibration Interval

    BYK LC 4 Operation Setting the calibration interval The calibration interval determines how many days after the last calibration the instrument should remind you to recalibrate. The sensor symbol on the display flashes when the calibration interval has expired. Open the Init initialization menu with <C_>.

  • Page 32: Saving

    Operation BYK LC 4 Saving The BYK LC 4 meter has a data memory. Up to 50 measurement datasets can be stored in it. A dataset consists of: ! Main measured value (conductivity, specific resistance, salinity or TDS) ! Measured temperature value...

  • Page 33: Displaying Measured Data From The Memory

    BYK LC 4 Operation If all storage locations are occupied, the StoFull message appears. You have the following options: Save the current measured value. Press <g> The oldest measured value (storage location 1) will be overwritten by this Return to the measuring mode without saving Press <E>...

  • Page 34: Erasing Measured Data From The Memory

    Operation BYK LC 4 If necessary, display further elements of the dataset (ID number, date, time, temperature) with <ß _> [element of the measurement dataset]. Switch to the measuring mode with <E>. 4.9.3 Erasing measured data from the memory To erase all datasets proceed as follows: Display the memory with <M_>.

  • Page 35: Clock

    BYK LC 4 Operation 4.10 Clock The meter has a clock. When saving measured values and calibrating, the date and current time are automatically saved as well. The clock has the following additional functions: ! Alarm function (see section 4.10.2).
  • Page 36 Operation BYK LC 4 Tref20 Tref20 Cell RESET Tref25 mg/l mbar 1 1 0 9 S/cm M cm k cm CellTC 3 0 5 LoBat Day.Month h:min min:s Ident Set the time with <>> and <<>. Select the [<Day> or <Month>] with <5_> or <6_>.

  • Page 37: Alarm Function

    BYK LC 4 Operation 4.10.2 Alarm function With the alarm function you set a point of time (alarm time) at which an alarm signal should sound. Prerequisite is the correct setting of the time (see section 4.10.1). The alarm signal also sounds when the meter is switched off.

  • Page 38: Stopwatch

    Operation BYK LC 4 Switching on the Switch to the date and time display with <g>. alarm function The alarm function is switched on. The v status indicator flashes. Switch to the date and time display with <E>. The alarm time is stored. The alarm function is switched off.

  • Page 39: Timer

    BYK LC 4 Operation Display the current time as an intermediate time with <L>. The intermediate time is displayed under the running stopwatch. Stop the stopwatch with <g>. Let it continue with <g>. Reset the stopwatch to 00:00 with <R>.

  • Page 40: Switch-Off Interval

    Operation BYK LC 4 If necessary, stop the timer before the time has expired with <g> and make it continue with <g>. As soon as the time has expired the alarm signal sounds. Switch off the alarm signal with <(>. The timer goes on counting with a negative sign.

  • Page 41: Reset

    BYK LC 4 Operation 4.12 Reset The following parameters are stored in the sensor module. The reset function resets them to the delivery condition. Sensor module, TetraCon V Adjustable values Delivery Parameter condition Measuring mode , Spec. resistance, Sal, TDS...
  • Page 42 Operation BYK LC 4 Resetting the Start the INIT initialization menu with <C_>. measuring param- eters For initialization, select YES with <ß >. Tref20 Tref20 Cell RESET Tref25 mg/l mbar 1 n i t S/cm M cm k cm CellTC Y E S LoBat Day.Month h:min min:s...

  • Page 43: Maintenance, Cleaning, Disposal

    BYK LC 4 Maintenance, cleaning, disposal Maintenance, cleaning, disposal Maintenance The meter is almost maintenance-free. The only maintenance activity is exchanging the battery when it is depleted (LoBat display indicator). Battery exchange The LoBat display indicator indicates that the battery should be changed.

  • Page 44: Cleaning

    Maintenance, cleaning, disposal BYK LC 4 Place the new battery (type Mignon AA) in the battery compartment. Make sure that the poles of the battery are the right way round. The ± ± signs on the battery must correspond to the signs in the battery compartment.

  • Page 45: Transport

    BYK LC 4 Maintenance, cleaning, disposal Cleaning the We recommend to clean the sensor module thoroughly, especially before sensor module measuring low conductivity values. Before measuring, thoroughly rinse the sensor with deionized water. Contamination Cleaning agent Reaction time at room tempera-...
  • Page 46 Maintenance, cleaning, disposal BYK LC 4...

  • Page 47: What To Do If

    BYK LC 4 What to do if... What to do if... Error message Cause Remedy 0FL, UFL – The measured value lies outside the measuring range – Sensor module defective – Replace sensor module Error message Cause Remedy Err3 Err3...

  • Page 48: Processor Reset

    What to do if... BYK LC 4 No stable Cause Remedy measured value – Sensor module contaminated – Clean sensor module – Temperature not stable – Adjust temperature if necessary – Conductivity too low – Use suitable sensor module – Organic liquids –...

  • Page 49: Technical Data

    BYK LC 4 Technical data Technical data Measuring instrument Dimensions approx. 140 x 80 x 33 mm (without sensor module) Weight approx. 115 g (without sensor module, without battery) Mechanical Type of protection IP 65 (hose-proof) structure Electrical safety Protective class...
  • Page 50 Technical data BYK LC 4 Measuring ranges [µS/cm] 0.0 ... 199.9 0 ... 1999 resolution [mS/cm] 0.00 ... 19.99 0.0 ... 199.9 Spec. resistance 0.000 ... 1.999 [kΩ*cm] 0.00 ... 19.99 0.0 ... 199.9 0 ... 1999 Spec. resistance 0.00 ... 19.99 [MΩ*cm]...
  • Page 51 BYK LC 4 Technical data Accuracy Range 0.0 ... 42.0 (± 1 digit) Accuracy Temperature of test sample ± 0.1 5 °C ... 25 °C ± 0.2 25 °C ... 30 °C TDS [mg/l] T [°C] ± 0.1 T [°F] ±...

  • Page 52: Sensor Module Tetracon V

    Technical data BYK LC 4 Sensor module TetraCon V Plug head connector Temperature sensor Current electrode (ring) Voltage electrode Electrodes Number of electrodes Electrode material Graphite Material Shaft Epoxy, black Connection head Dimensions Shaft diameter 15.3 mm Shaft length 54 mm...
  • Page 53 BYK LC 4 Technical data Material of thermistor Graphite enclosure Working temperature -5 .. +100°C Thermistor response < 20 sec. behavior Sensor accuracy ± 0.2 K Storage medium Accessories Designation Order number E/SET Calibration set 300 572...
  • Page 54 Technical data BYK LC 4...

  • Page 55: Lists

    BYK LC 4 Lists Lists This chapter provides additional information and orientation aids. Abbreviations The list of abbreviations explains the indicators and the abbreviations that appear on the display and in the manual. 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.
  • Page 56 Lists BYK LC 4 Abbreviations Conductivity value °C Temperature unit, Celsius °F Temperature unit, Fahrenheit AutoRead (drift control) Cell constant cm Calibration CELL Cell constant Error message CHAPTER HAT TO DO IF Ident ID number Init Initialization Resets individual basic functions to the status they had...
  • Page 57 BYK LC 4 Lists Glossary Adjusting To manipulate a measuring system so that the relevant value (e. g. the displayed value) differs as little as possible from the correct value or a value that is regarded as correct, or that the difference remains within the tolerance.
  • Page 58 Lists BYK LC 4 Reference In order to compare values measured at different temperatures, the values temperature have to be converted to a fixed temperature. This temperature is 25 °C, or, as an exception, 20 °C. Reset Restoring the original condition of all settings of a measuring system.

  • Page 59: Index

    BYK LC 4 Index Index ............. 41 Reset .........37 Alarm function ...........7 Authorized use ............7 Safety ........7 Safety precautions ........... 18 Salinity ........31 Calibration interval ............ 32 Saving Cell constant ......32 Saving measuring data ........22 adjust manually ........
  • Page 60 Index BYK LC 4...
  • Page 61 BYK-Gardner GmbH Lausitzer Str. 8 D-82538 Geretsried Germany Tel: +49-8171-3493-0 Fax: +49-8171-3493-140 E-Mail: info@byk-gardner.de Internet: http://www.byk-gardner.com...

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