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2

ba75898e06

08/2015

FDO

®

 925

Copyright

© 2015, WTW GmbH
Reproduction in whole - or even in part - is prohibited without the 
express written permission of WTW GmbH, Weilheim.
Printed in Germany.

For the most recent version of the manual, please visit 
<hyperlink>www.si-analytics.com.

Содержание FDO 925-P

Страница 1: ...OPERATING MANUAL ba75898e06 08 2015 FDO 925 FDO 925 P OPTICAL D O SENSOR FDO 925 FDO 925 P...

Страница 2: ...ght 2015 WTW GmbH Reproduction in whole or even in part is prohibited without the express written permission of WTW GmbH Weilheim Printed in Germany For the most recent version of the manual please vi...

Страница 3: ...r cap 6 2 2 Commissioning 6 2 3 Opening and closing the IDS plug connection FDO 925 P 7 2 4 Measuring 8 2 5 Function check and user calibration 8 2 6 Storage 9 3 Maintenance cleaning replacement 10 3...

Страница 4: ...ble FDO 925 4 IDS plug FDO 925 P 5 Protective hood with connection for RZ 300 stirrer accessory 6 Sensor membrane 7 SC FDO 925 sensor cap with memory chip 8 Gold plated contacts for the memory chip of...

Страница 5: ...nsor is connected and is used for measurement and for measured value documentation The calibration data are stored in the sensor cap Thus the calibration is automatically retained if the sensor or met...

Страница 6: ...f delivery D O sensor FDO 925 with sensor cap Check and storage vessel FDO Check Operating manual Preparing the sensor for measurement FDO 925 Connect the sensor to the meter The sensor is immediately...

Страница 7: ...lips of the connector together and pull the connector out of the plug step 2 Closing the plug connection Make sure that the plug connection is completely dry and clean Align the guidance of the connec...

Страница 8: ...lication see page 5 the measuring characteristics of the sensor cap remain stable for the specified service life Thus a user calibration is not usually required When does a check or user calibration m...

Страница 9: ...the temperatures of the sensor and cali bration vessel to adjust 2 6 Storage Always store the sensor in the check and storage vessel FDO Check at a temperature in the range 0 50 C 32 122 F The steps o...

Страница 10: ...lean and dry prior to removing the sensor cap Please do not touch the outer sensor membrane with your fingers Touch the sensor cap at the sides only arrows in figure on the left Avoid any great mechan...

Страница 11: ...Do not push any tools or other sharp objects between the sealing sur faces This would damage the sealing surfaces and sealing ring 6 Check the front surface of the sensor for absolute cleanness and cl...

Страница 12: ...In the case of persisting dirt you can add some household washing up liq uid to the tapwater Attention Never use any alcohol for cleaning 3 3 2 Interior cleaning of sensor cap and sensor head If moist...

Страница 13: ...heck the zero point of the sensor Measurement in a nitrogen atmosphere recommended method Measurement in a sodium sulfite solution according to DIN EN 25814 ISO 5814 Test criterion The sensor is OK if...

Страница 14: ...3 2 Dirt inside the sensor cap and sensor head Protective hood not properly tightened Sensor cap untight or defective Dismantle the sensor cap Clean the insides of the sensor cap and sensor head see...

Страница 15: ...25 C 77 F Dimensions in mm Weights FDO 925 180 g with 3 m cable FDO 925 P 107 g FDO Check 58 g Materials Shaft POM Connection head POM Sensor cap PVC silicone and PMMA Sensor head POM PV and PMMA Sen...

Страница 16: ...or with connection cable IP 68 1 x 106 Pa or 10 bar Cable plug FDO 925 IP 67 when plugged in The FDO 925 meets the requirements according to article 3 3 of the 97 23 EC directive Pressure equipment di...

Страница 17: ...r O2 partial pressure Response time at 20 C 68 F in stirred solution t90 90 of the final value display after 30 s t95 95 of the final value display after 45 s t99 99 of the final value display after 6...

Страница 18: ...2 205 700 Fixing ring recommended for measure ments in Karlsruhe bottles FR 19 205 712 Flow through accessory for pressure free D O measurement with flow through quanti ties from 25 to 65 ml min D 201...

Страница 19: ......

Страница 20: ...water needs Developing new technologies that will improve the way water is used conserved and re used in the future is central to our work We move treat analyze and return water to the environment and...

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