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ADWA AD 330 User Manual

Ec/tds/temperature portable meter
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USER MANUAL
AD 330
EC/TDS/Temperature
Portable Meter
w w w . a d w a i n s t r u m e n t s . c o m

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Summary of Contents for ADWA AD 330

  • Page 1 USER MANUAL AD 330 EC/TDS/Temperature Portable Meter w w w . a d w a i n s t r u m e n t s . c o m...

  • Page 2: Warranty

    Adwa will not be held responsible for any accident whether directly or indi- rectly, caused by the use of this instrument.
  • Page 3 INTRODUCTION AD330 is a heavy-duty portable microprocessor-based This model is supplied complete with: instrument for measuring conductivity, TDS and tem- • A76309 conductivity probe with built-in temperature perature. sensor and 1 m cable The autoranging feature of the EC and TDS readings •...

  • Page 4: Technical Data

    TECHNICAL DATA Reference Temperature Range 0.00 to 19.99 µS/cm; 0.00 to 9.99 ppm Selectable from 15.0 to 30.0°C 20.0 to 199.9 µS/cm; 10.0 to 99.9 ppm Probe (included) A76309 EC probe 200 to 1999 µS/cm; 100 to 999 ppm with built-in temperature sensor 2.00 to 19.99 mS/cm;...

  • Page 5: Front And Top Panels

    FRONT AND TOP PANELS 1. Probe holder 2. Connector for EC probe 3. ON/OFF key, to turn the instrument ON and OFF 4. HOLD/GLP key, to freeze the first stable reading on the LCD and to display Good Laboratory Prac- tice information 5.

  • Page 6: Operational Guide

    OPERATIONAL GUIDE • The meter is supplied complete with four 1.5 V AA alkaline batteries. Remove the cover, unwrap the bat- teries and install them while paying attention to their polarity (also see “ Battery Replacement” section). • To prepare the instrument for use, connect the EC probe •...
  • Page 7 AUTORANGING The EC and TDS scales are autoranging. The meter automatically sets the scale with the highest possible resolution. By pressing SHIFT and “lock” keys, the autoranging feature is Notes: disabled and the current range is • If the meter displays only dashes “----”, the read- frozen on the LCD.

  • Page 8: Temperature Compensation

    TEMPERATURE COMPENSATION • If the temperature compensation is active, mea- surements are compensated using the tempera- Three options are available for temperature compensa- ture coefficient (default value 1.90 %/°C). tion: To change the temperature coefficient, enter the 1. Automatic (ATC): the EC probe features a built-in setup mode and select the “tc”...
  • Page 9 EC CALIBRATION • The primary LCD displays the not calibrated EC read- ing, while the secondary LCD shows one of the avail- STANDARD CALIBRATION able standard values. The hourglass symbol blinks. EC calibration is a one-point procedure. Selectable cali- bration points are: 0.00, 84.0 and 1413 µS/cm, 5.00, 12.88, 80.0 and 111.8 mS/cm.

  • Page 10: Custom Calibration

    Notes: • The “CAL”, “BUFFER” and “Cal Point Custom” tags light up. The primary LCD displays the not calibrated • If the temperature is out of range, the “WRONG temperature compensated EC reading, while the sec- BUFFER TEMP” message blinks on the LCD. If the ondary LCD shows the temperature compensated EC reading is too far from the expected value, “WRONG reading, factory calibrated with (cell value) k=1.

  • Page 11: Temperature Adjustment

    Notes: TEMPERATURE ADJUSTMENT • Zero calibration is not allowed in custom mode. The temperature reading can be manually fine-tuned fol- lowing the next procedure. • The calibrated custom value is considered the value of the calibration solution at the selected reference Press SHIFT and CFM keys to enter temperature.
  • Page 12 SETUP Setup mode allows to view and modify the instrument parameters. To enter setup mode, press SHIFT and then SETUP key from measurement mode. The SETUP tag lights Press the arrow keys to change the value. up. The primary LCD will display the temperature coef- ficient (default value 1.90%/ºC), while the secondary...

  • Page 13: Good Laboratory Practice

    The following table lists the setup items, their valid range GOOD LABORATORY PRACTICE and the factory settings (default): Good Laboratory Practice (GLP) is a set of functions that allows storage and retrieval of data regarding the Description Item Valid values Default status of the system.
  • Page 14 If the cell constant was changed after calibration (through Last calibration date (day and the “CELL” setup function), this information is not dis- month): played. If RANGE is pressed when the last parameter is dis- played, the meter returns to measurement mode. Last calibration date (year): Notes: •...

  • Page 15: Hold Function

    HOLD FUNCTION BATTERY REPLACEMENT When the batteries become too weak, the “bAtt” mes- To freeze the first stable reading on sage appears on the secondary LCD. It is recommended the LCD, press the HOLD key from to replace the batteries soon. measurement mode.

  • Page 16: Probe Maintenance

    PROBE MAINTENANCE PROBES AND SOLUTIONS After measurements, rinse the probe with clean water. A76309 Conductivity probe with built-in tem- perature sensor and 1 m cable If a more thorough cleaning is required, remove the probe sleeve and clean the probe with a cloth or a non-abra- A70030P 12.88 mS/cm solution, 20 ml sachet, 25 sive detergent.
  • Page 17 ADWA HUNGARY Kft. Alsókikötõ sor 11, 6726 Szeged, Hungary Tel. +36 62 317 878 Fax +36 62 550 610 www.adwainstruments.com MANAD330R3 03/11...

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