Xylem VARIO COND TEMPERATURE CONDUCTIVITY METERS User Manual

ba75468e01 07/2004ba75468eVARIO CondDRAFT: Monday, 9. August 2004Operating manualHand-heldconductivity meterTref25nLFCALCALMEMMEMS/cmCESCESC1 3 1 42 5

Commissioning VARIO Cond103.3 Connecting the sensor module1 Unscrew the coupling ring (1) from the meter.2 Place the sensor module (2) in a straight p

VARIO Cond Commissioning113.4 Storing the meter and sensor moduleTo maintain the operability of the meter and sensor module for a long time, leave the

Commissioning VARIO Cond12

VARIO Cond Operation134 Operation4.1 Operating elementsThe entire operation is carried out via the touch sensitive surface of the display (touch scree

Operation VARIO Cond14Touch screen The touch screen contains 8 touch sensitive tactile areas that start different functions when being pressed, depend

VARIO Cond Operation15Touch screenoperationIn this operating manual, keys are indicated by angle brackets <..>. The touch screen symbol (example

Operation VARIO Cond164.2 Switching on the meterNoteThe meter has an energy saving feature to avoid unnecessary battery deple-tion. The energy saving

VARIO Cond Operation174.3 Measuring4.3.1 General informationDepth ofimmersionFor measurements in a measuring solution we recommend an immersion depth

Operation VARIO Cond184.3.2 Carrying out measurementsSetting menu,measuredparameter1 Make sure a valid calibration exists for the measuring system (se

VARIO Cond Operation194.3.3 Setting the TDS factor1 If necessary, press <"_> [<Measured value>] repeatedly until the measured paramet

VARIO Cond2Accuracy whengoing to pressThe use of advanced technology and the high quality standard of our instruments are the result of continuous dev

Operation VARIO Cond204.3.4 Switching over the temperature unitFor reproducible conductivity measurements, it is essential to measure the temperature

VARIO Cond Operation214.4 Adjusting/calibrating the cell constantWhy adjust/calibrate the cellconstant?The actual cell constant of the sensor module c

Operation VARIO Cond22AutoRead(drift control)The calibration procedure automatically activates the AutoRead function. The display of the unit flashes

VARIO Cond Operation23NoteYou can terminate the setting of the cell constant with <E>. The data of the terminated setting is not used.The cell c

Operation VARIO Cond244.4.2 Determining the cell constant (calibration in the control stan-dard)NoteThis method of automatically determining the cell

VARIO Cond Operation25NoteIf no valid calibration can be accomplished, the Err3 error message appears on the display. Measuring is not possible in thi

Operation VARIO Cond264.5 Setting the temperature compensationThe calculation of the temperature compensation is based on the preset reference tempera

VARIO Cond Operation274.5.1 Selecting the temperature compensationSetting menu forthe temperaturecompensation1 Open the setting menu for the cell cons

Operation VARIO Cond284.5.2 Setting the linear temperature coefficient NoteYou can terminate the setting of the temperature coefficient with <E>

VARIO Cond Operation294.6 Setting the reference temperatureThe setting is only effective if the linear or nonlinear temperature compensa-tion is switc

VARIO Cond31 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Safety . . . . . . . . . . . . . . . . . . . .

Operation VARIO Cond304.7 Calibration dataThe calibrated cell constant is displayed after calibration (see section 4.4.2) and is accessible any time.

VARIO Cond Operation314.8 Setting the calibration intervalThe calibration interval determines how many days after the last calibration the instrument

Operation VARIO Cond324.9 SavingThe VARIO Cond meter has a data memory. Up to 50 measurement datasets can be stored in it. A dataset consists of:l Ma

VARIO Cond Operation33If all storage locations are occupied, the StoFull message appears. You have the following options:4.9.2 Displaying measured dat

Operation VARIO Cond344.9.3 Erasing measured data from the memoryTo erase all datasets proceed as follows:5 If necessary, display further elements of

VARIO Cond Operation354.10 ClockThe meter has a clock. When saving measured values and calibrating, the date and current time are automatically saved

Operation VARIO Cond364 Set the time with <>> and <<>.5 Select the [<Day> or <Month>] with <5_> or <6_>.The

VARIO Cond Operation374.10.2 Alarm functionWith the alarm function you set a point of time (alarm time) at which an alarm signal should sound. Prerequ

Operation VARIO Cond38Switching on thealarm functionSwitching off thealarm function4.10.3 Stopwatch With the stopwatch, you measure time periods of up

VARIO Cond Operation394.10.4 TimerThe timer function can count down the seconds of a specified time interval (timer intervall) of maximum 59:59 (minut

VARIO Cond45.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435.2 Battery exchange . . . . . . . . . . .

Operation VARIO Cond40NoteIf the timer has been stopped you canl Reset the timer to the adjusted timer interval with <R>.l Terminate the timer a

VARIO Cond Operation414.12 Reset The following parameters are stored in the sensor module. The reset function resets them to the delivery condition.No

Operation VARIO Cond42Resetting themeasuring param-etersSetting thecalibration interval1 Start the INIT initialization menu with <C_>.2 For init

VARIO Cond Maintenance, cleaning, disposal435 Maintenance, cleaning, disposal5.1 MaintenanceThe meter is almost maintenance-free. The only maintenance

Maintenance, cleaning, disposal VARIO Cond445.3 CleaningOccasionally wipe the outside of the meter with a damp, soft cloth.CautionThe housing componen

VARIO Cond Maintenance, cleaning, disposal45Cleaning thesensor moduleWe recommend to clean the sensor module thoroughly, especially before measuring l

Maintenance, cleaning, disposal VARIO Cond46

VARIO Cond What to do if...476 What to do if...Error message0FL0FL0FL0FL, UFLUFLUFLUFL Error messageErr3Err3Err3Err3Error messageErr4Err4Err4Err4Erro

What to do if... VARIO Cond48No stablemeasured value Indication, l Meter does notreact to keystroke Sensor symbolflashes Message, StoFullStoF ullStoF

VARIO Cond Technical data497 Technical data7.1 Measuring instrumentDimensions approx. 140 x 80 x 33 mm (without sensor module)Weight approx. 115 g (wi

VARIO Cond Overview51 OverviewThe VARIO Cond hand-held meter and a suitable sensor module enable you to measure the conductivity, specific resistance,

Technical data VARIO Cond50Measuring rangesandresolution Accuracy(± 1 digit) [µS/cm] [mS/cm]0.00 ... 19.99(only with sensor module, LR01 V)0.0 ...

VARIO Cond Technical data51Accuracy(± 1 digit)Cell constant,calibrated Cell constant,adjusted Referencetemperature Memory locations 50SAL Range 0.0 ..

Technical data VARIO Cond527.2 Sensor module7.2.1 Sensor module TetraCon VElectrodesMaterialDimensionsDepth ofimmersionmin.: 36 mmmax.: 75.5 mm (T <

VARIO Cond Technical data53TemperaturemeasurementStorage medium AirAccessories7.2.2 Sensor module LR01 VElectrodesMaterialThermistor type Integrated N

Technical data VARIO Cond54DimensionsDepth ofimmersionmin.: 30 mmmax.: 90.5 mm (T < 50 °C)max.: 69.0 mm (50 °C < T < 100 °C)Connectiontechniq

VARIO Cond Lists558ListsThis chapter provides additional information and orientation aids.Abbreviations The list of abbreviations explains the indicat

Lists VARIO Cond56AbbreviationsConductivity value°C Temperature unit, Celsius°F Temperature unit, FahrenheitAR AutoRead (drift control)C Cell constant

VARIO Cond Lists57GlossaryAdjusting To manipulate a measuring system so that the relevant value (e. g. the displayed value) differs as little as possi

Lists VARIO Cond58ReferencetemperatureIn order to compare values measured at different temperatures, the values have to be converted to a fixed temper

VARIO Cond Index599 IndexAAlarm function ...37Authorized use ...7CCalibr

Overview VARIO Cond6

Index VARIO Cond60

VARIO Cond Safety72SafetyThis operating manual contains basic instructions that you must follow during the commissioning, operation and maintenance of

Safety VARIO Cond82.2 General safety instructionsThis instrument is built and inspected according to the relevant guidelines and norms for electronic

VARIO Cond Commissioning93 Commissioning3.1 Scope of deliveryl VARIO Cond hand-held meterl Sensor module (TetraCon V or LR01 V)l Microfiber cleaning c