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18

be watered for approx. 2 hours prior to measurement.
It then needs to be recalibrated.

b.) The sensors may only be used with the correspon-
ding units. The use of the sensors in combination with
unsuitable units can destroy the unit and the sensors!

c.) Unit and sensor must be handled with care and
used in accordance with the technical data outlined
above. Always protect the connector and connection
socket against soiling and dirt.

d.) Do not insert the connector at an angle. If the con-
nector is inserted properly, you should be able to press
it in without using force.

When disconnecting the sensor, do not pull it by the
cable but always by the connector sleeve.

e.) Remove the sensor storage cap before performing
measurements.

11.3 Design of the sensor

The housing of the sensor probe is made of PVC. With
the exception of the sensor shaft, all parts must be
serviced regularly and replaced if necessary.

Storage cap: The storage cap is used to moisten the
membrane. This increases the service life of the sen-
sor. The storage cap contains deionised water.

Membrane cap: the diaphragm head is covered with
a Teflon membrane.

The diaphragm cap is filled with KOH electrolyte and
screwed onto the sensor shaft in such a way that the-
re are no air bubbles.

Sensor
shaft

O - R i n g -
seal

membrane
cap

Refill
opening

Camlab CW/6230  2/5/06  3:33 pm  Page 18

Содержание CW/6230

Страница 1: ...solved Oxygen Meter Instruction Manual Ref CW 72 32 20 Camlab Water Model CW 6230 C O2 hPa mg l mmHg SAL OK Cal hPa MEAS HOLD F C Meas Cal Hold Rcl Store On Off Menu Camlab CW 6230 2 5 06 3 33 pm Page...

Страница 2: ...Camlab CW 6230 2 5 06 3 33 pm Page 2...

Страница 3: ...unit C F 13 8 7 Selection of unit for oxygen partial pressure 13 8 8 Power off automatic unit switch off 13 9 Oxygen measurement 14 9 1 Absolute pressure 14 9 2 Salinity correction 15 10 Calibration...

Страница 4: ...mlab Water CW6230 is a sturdy water tight handheld meter designed for daily measurements in the area of field or laboratory analysis It is used to measure oxygen concentration in surface waters and gr...

Страница 5: ...ll them up on the display The standard MEAS measuring function is for conti nuous measurement of oxygen concentrations parti al pressures or saturations The absolute atmospheric pressure is measured i...

Страница 6: ...lay 3 Connections C mmHg hPa mg l O2 SAL OK CAL hPa MEAS HOLD F C Meas CAL Hold KCl Store On Off Menu 1 2 3 4 5 6 7 8 9 C pH RealmV mV ATC O CAL MAX MEAS MIN HOLD F C Meas CAL Hold KCl Store On Off Me...

Страница 7: ...on O2 Oxygen saturation Secondary display Result temperature or user prompt Percent sensor evaluation C F Temperature unit Warning index battery SAL Salinity correction on off OK Measuring signal stab...

Страница 8: ...Calibration mode Store Storage of current result or acceptance of unit configuration Menu Unit configuration 6 Startup The unit is supplied with integrated batteries as stan dard and is therefore rea...

Страница 9: ...er section of the display this means that the batteries are completely empty Only use the matching Camlab oxygen sensors Other sensors may cause serious damage to the me ter and the sensor The sensor...

Страница 10: ...key takes you into the AUTO HOLD measuring mode In this mode the recorded result is checked by the system in line with the predefined stability criteria until these criteria are met The display shows...

Страница 11: ...onfigura tion The unit then switches back to measuring mode You can terminate the configuration process by pres sing the Meas or Hold key Settings made up to this point are not stored The unit retains...

Страница 12: ...ter nally during every calibration depending on the sen sor used 100 The electrode is in excellent condition 30 90 The condition of the electrode is ade quate 30 The electrode is old from use or soile...

Страница 13: ...F 1 8 C 32 8 7 Selection of unit for oxygen partial pressure hPa Oxygen partial pressure in hPascal mmHg Oxygen partial pressure in mm mercury column 8 8 Power off automatic unit switch off If no key...

Страница 14: ...The oxygen partial pressure the oxygen concentrati on mg l and the oxygen saturation are calculated on the basis of the sensor signal and the temperature The measurement is based on steam saturated a...

Страница 15: ...Oceanogra phic Tables IOT 10 Calibration of oxygen measurement The sensor data of oxygen sensors are affected by ageing and manufacturing tolerances that result in fluc tuations You should therefore...

Страница 16: ...error messages occur during calibration please see the troubleshooting tips If calibration is not completed after you have waited a lengthy period of time at least one of the three measu ring signals...

Страница 17: ...lf polarising sensor with silver cathode and lead anode with potassium hydroxide as an elec trolyte is an active system The lead anode the silver cathode and the electrolyte are used up during operati...

Страница 18: ...hen disconnecting the sensor do not pull it by the cable but always by the connector sleeve e Remove the sensor storage cap before performing measurements 11 3 Design of the sensor The housing of the...

Страница 19: ...maintenance If the sensor is not needed it should be stored either in the storage cap filled with water or directly in a container full of deionised water If a bacterial fungal or algae coating has f...

Страница 20: ...disposable syringe Screw the refill screw back in place Fill new membrane cap with electrolyte avoiding air bubbles Screw the sensor vertically into the cap from above When you insert the sensor the...

Страница 21: ...he Rcl key the number of the memory location and the corresponding oxygen value are displayed The second time you press the key the temperature for this result is displayed the third time the air pres...

Страница 22: ...Cause Remedy Weak battery vol Insert new batteries tage the unit will only continue to function for a short time Batteries empty Insert new batteries No display or Batteries empty Insert new batteries...

Страница 23: ...r defective Replace sensor Err 7 System error Send in for repair Err 9 Sensor not present Connect sensor Sensor defective Replace sensor Err 11 Value could not Temperature outside be calculated the ad...

Страница 24: ...bubbles in the too high diaphragm head Check calibration environment 14 Technical data Indicating ranges High resolution Low resolution Auto Range Oxygen partial 0 0 570 0 hPa 0 1200 hPa pressure 0 0...

Страница 25: ...esult memory locations Power supply 4 x 1 5 V batteries Type AA operating life up to 2000h depending on measuring mode and battery type Power consumption max 0 25 mA depending on measuring mode MEAS o...

Страница 26: ...verall length approx 220 mm incl anti kink protection Operating temperature 0 40 C CW 72 32 00 Camlab Water CW6230 Instrument CW 72 32 20 Camlab Water CW6230 Set TT 72 32 01 SensoDirect Oxygen Sensor...

Страница 27: ...27 Camlab CW 6230 2 5 06 3 33 pm Page 27...

Страница 28: ...ited Camlab House Norman Way Over Cambridge CB4 5WE Tel 01954 233110 Fax 01954 233101 www camlab co uk camlab Choice Service and Trust Technical changes may occur without notice Camlab CW 6230 2 5 06...

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