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Xylem FDO 925/STM Скачать руководство пользователя страница 1

2020-03-11

Operating Manual

FDO

®

925/STM

Optical Dissolved Oxygen Sensor

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Содержание FDO 925/STM

Страница 1: ...2020 03 11 Operating Manual FDO 925 STM Optical Dissolved Oxygen Sensor ...

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Страница 3: ...ns for use are intended to show you the proper and safe handling of the product For the highest possible safety you must adhere to the listed safety and warning notes in these manual The pictograph has the following meaning Warning of a general danger No compliance results can result in injury or material damage Important information for the use of the device Refers to another part of the operatin...

Страница 4: ...nics 3 Connection cable FDO 925 STM 4 FDO converter 5 Schutzkorb 6 Sensor membrane 7 Sensor cap SC FDO 925 with memory chip 8 Gold plated contacts for the memory chip of the sensor cap 9 Locking device 10 Measurement window 11 O ring 12 Thermistor enclosure with temperature sensor 1 2 3 6 7 8 10 11 12 5 4 9 ...

Страница 5: ...matically retained if the sensor or meter are exchanged The digital transmission technique guarantees the failure free communication with the meter even with long connection cables Recommended fields of application 1 2 On site measurements in rivers lakes and wastewater Applications in water laboratories BOD measurements 2 Measuring Operation General information on the handling of the sensor cap 2...

Страница 6: ... required When does a check or user calibration make sense A function check or user calibration can be useful in the following special cases If the measured values appear to be implausible and it is assumed that the service life of the sensor cap is over Routinely within the framework of the company quality assurance Check or calibration medium The check and user calibration take place in water va...

Страница 7: ...interior of the sensor cap will by and by affect the measurement characteristics and shorten the service life of the sensor cap Therefore the interior of the sensor cap should not be exposed to direct sunlight Avoid any exposure to light that exceeds the extent required for necessary maintenance and cleaning activities Store dismantled sensor caps in a light protected environment only Exchanging t...

Страница 8: ...e sensor with tapwater to remove loosely adhering dirt Rough dirt on the sensor shaft can be brushed off with a soft brush Attention Do not use the brush in the area of the sensor membrane Risk of damage The sensor cap including the sensor membrane should be wiped with a soft and moist microfiber cloth In the case of persisting dirt you can add some household washing up liquid to the tapwater Atte...

Страница 9: ...nsor chapter 3 3 1 Membrane damaged Exchange the sensor cap Service life of the sensor cap over Check the sensor Replace the sensor cap as necessary Chapter 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 Chapter 3 3 2 Mount the sensor cap correctly and...

Страница 10: ...hPa 0 5 of measured value Temperature 0 50 0 C 0 2 C Membrane shape chamfered Shaft material POM stainless steel Shaft length 140 mm 1 mm Diameter 15 3 mm 0 2 mm Cable length 10 m Protection IP 68 Converter Output signal 2 x 4 20 mA Measuring range 0 00 20 00 mg l DAC0 4 20 mA 0 0 50 0 C DAC1 4 20 mA Error detection no data 0 mA no cap 22 mA Length 165 mm 10 mm Diameter 16 mm 1 mm Dimension in mm ...

Страница 11: ...ges Developing new technologies that will improve the way water is used conserved and re used in the future is central to our work Our products and services move treat analyze monitor and return water to the environment in public utility industrial residential and commercial building services settings Xylem also provides a leading portfolio of smart metering network technologies and advanced analy...

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